Author: Robert Zimmerman
Gullies and glaciers in a crater on Mars
Click for full image.
Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken on July 10, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows the floor of 4-mile-wide Avire Crater, located at about 41 degrees south latitude inside the much larger 185-mile wide Newton Crater.
This picture was taken as part of a long term monitoring program of the many gullies that flow down the slopes of the crater’s interior rim. In fact, the gullies of this crater have so interested scientists that one even proposed [pdf] this location as a potential future rover landing site.
Avire Crater, a small … gullied crater within Newton Crater, provides many aspects ideal to a future rover mission. It has been previously hypothesized to be the location of a former paleolake with multiple episodes of ponding and deposition. Gullies occur almost continuously on the southwest wall clockwise to the northeastern wall. Dark-toned dunes are present in the northern portion of the crater, in some places obscuring gullies while cut by gullies in others. No changes in the extent or appearance of the dunes have been observed since they were first imaged … in January of 2000. The dunes lack superimposed craters, indicating that the gullies that cut through them are geologically very youthful. Layered lobate features are present at the base of the gullies on the northern wall, seen in many other craters on Mars (not always in association with gullies), which have been suggested to have formed as terminal moraines of ice-rich flows; in Avire, these features have also been suggested to be paleolake deposits. The crater floor is obscured by mid-latitude “fill” material, hypothesized to be partially comprised of ice based on morphologic evidence that the material has been partially removed.
As gullies, dunes, and “fill” material occur in many places on Mars, a single rover mission to a site containing these features would provide valuable information applicable to thousands of other locations across the planet.
The curved ridgeline in the crater floor is thought to be a moraine. The “fill” material to the south is essentially glacial in nature. Both, as well as the gullies, appear to have been shaped either a paleolake that once existed in the crater or by cyclical glacier activity. By going to this one crater, scientists could study all these different geological features at one time.
» Read more
Click for full image.
Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken on July 10, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows the floor of 4-mile-wide Avire Crater, located at about 41 degrees south latitude inside the much larger 185-mile wide Newton Crater.
This picture was taken as part of a long term monitoring program of the many gullies that flow down the slopes of the crater’s interior rim. In fact, the gullies of this crater have so interested scientists that one even proposed [pdf] this location as a potential future rover landing site.
Avire Crater, a small … gullied crater within Newton Crater, provides many aspects ideal to a future rover mission. It has been previously hypothesized to be the location of a former paleolake with multiple episodes of ponding and deposition. Gullies occur almost continuously on the southwest wall clockwise to the northeastern wall. Dark-toned dunes are present in the northern portion of the crater, in some places obscuring gullies while cut by gullies in others. No changes in the extent or appearance of the dunes have been observed since they were first imaged … in January of 2000. The dunes lack superimposed craters, indicating that the gullies that cut through them are geologically very youthful. Layered lobate features are present at the base of the gullies on the northern wall, seen in many other craters on Mars (not always in association with gullies), which have been suggested to have formed as terminal moraines of ice-rich flows; in Avire, these features have also been suggested to be paleolake deposits. The crater floor is obscured by mid-latitude “fill” material, hypothesized to be partially comprised of ice based on morphologic evidence that the material has been partially removed.
As gullies, dunes, and “fill” material occur in many places on Mars, a single rover mission to a site containing these features would provide valuable information applicable to thousands of other locations across the planet.
The curved ridgeline in the crater floor is thought to be a moraine. The “fill” material to the south is essentially glacial in nature. Both, as well as the gullies, appear to have been shaped either a paleolake that once existed in the crater or by cyclical glacier activity. By going to this one crater, scientists could study all these different geological features at one time.
» Read more
Today’s blacklisted American: Fire chief fired for attending a Christian-affiliated leadership conference
They’re coming for you next: Ron Hittle, who had served as a firefighter in Stockton, California, for more than two decades and was for five years its fire chief, was fired in 2010 because he had had the nerve to attend a leadership conference that happened to be affiliated with the Christian religion.
More than a decade ago, the Deputy City Manager asked Chief Hittle to attend leadership training. Chief Hittle learned about the Willow Creek Global Leadership Summit from a business magazine, and he decided to attend because it was a renowned leadership seminar that featured a “pop up business school” with stellar speakers from various backgrounds including his own Christian worldview. Chief Hittle invited three of his staff members who shared his Christian faith to join him, and he put his attendance on the public city calendar so his supervisors would be aware. The firefighters paid for the two-day seminar with their own funds.
But the same supervisor who asked Chief Hittle to attend leadership training told him it was unacceptable that he attended a Christian-affiliated seminar.
» Read more
They’re coming for you next: Ron Hittle, who had served as a firefighter in Stockton, California, for more than two decades and was for five years its fire chief, was fired in 2010 because he had had the nerve to attend a leadership conference that happened to be affiliated with the Christian religion.
More than a decade ago, the Deputy City Manager asked Chief Hittle to attend leadership training. Chief Hittle learned about the Willow Creek Global Leadership Summit from a business magazine, and he decided to attend because it was a renowned leadership seminar that featured a “pop up business school” with stellar speakers from various backgrounds including his own Christian worldview. Chief Hittle invited three of his staff members who shared his Christian faith to join him, and he put his attendance on the public city calendar so his supervisors would be aware. The firefighters paid for the two-day seminar with their own funds.
But the same supervisor who asked Chief Hittle to attend leadership training told him it was unacceptable that he attended a Christian-affiliated seminar.
» Read more
September 5, 2022 Space quick links
All courtesy of BtB’s stringer Jay.
- JAXA targets early ’23 for first launch of its new H3 rocket
The rocket has been delayed since 2020 due to serious engine issues.
- Long March 5B that will launch next module to Tiangong-3 arrives at launch site
The module, dubbed Mentian, is scheduled of an October launch. We shall then once again have to watch helplessly as the core stage of the 5B rocket crashes uncontrolled somewhere on Earth. In related news:
- China tests new engine for manned version of Long March 5, dubbed the Long March 5DY
It remains unclear whether that rocket’s core stage engines will restartable and thus able to control its de-orbit so that it lands in the ocean harmlessly.
- Blue Origin may have conducted static fire test of flightworthy BE-4 engine
We don’t know for sure, as the company has said nothing and this information is based solely on orbital photos taken between August 26th and August 28th.
- China accuses U.S. of hacking into China’s Northwestern Polytechnical University
This university does a lot of aerospace military development for China, such as hypersonic missiles. Also, considering that China has itself hacked into American aerospace resources frequently, such as at JPL, this accusation is simply the kettle calling the pan black.
- Planetary Defense webinar to be held on September 9, 2022
The event is virtual, apparently open to the public, will include researchers from NASA, JAXA, and ESA, and will be focused on discussing methods for protecting the planet from big asteroid impacts.
All courtesy of BtB’s stringer Jay.
- JAXA targets early ’23 for first launch of its new H3 rocket
- Long March 5B that will launch next module to Tiangong-3 arrives at launch site
- China tests new engine for manned version of Long March 5, dubbed the Long March 5DY
- Blue Origin may have conducted static fire test of flightworthy BE-4 engine
- China accuses U.S. of hacking into China’s Northwestern Polytechnical University
- Planetary Defense webinar to be held on September 9, 2022
The rocket has been delayed since 2020 due to serious engine issues.
The module, dubbed Mentian, is scheduled of an October launch. We shall then once again have to watch helplessly as the core stage of the 5B rocket crashes uncontrolled somewhere on Earth. In related news:
It remains unclear whether that rocket’s core stage engines will restartable and thus able to control its de-orbit so that it lands in the ocean harmlessly.
We don’t know for sure, as the company has said nothing and this information is based solely on orbital photos taken between August 26th and August 28th.
This university does a lot of aerospace military development for China, such as hypersonic missiles. Also, considering that China has itself hacked into American aerospace resources frequently, such as at JPL, this accusation is simply the kettle calling the pan black.
The event is virtual, apparently open to the public, will include researchers from NASA, JAXA, and ESA, and will be focused on discussing methods for protecting the planet from big asteroid impacts.
India’s space agency successfully tests prototype for controlling descent of spent 1st stages
India’s space agency ISRO on September 3, 2022 successfully used a suborbital sounding rocket to test a prototype of an inflatable airbag, which it dubs an Inflatable Aerodynamic Decelerator (IAD), that can inflate at the top of a 1st stage and slow and control its descent back to Earth after launch.
The graphic to the right was adapted from the mission brochure [pdf]. According to ISRO:
The IAD was initially folded and kept inside the payload bay of the rocket. At around 84 km altitude, the IAD was inflated and it descended through atmosphere with the payload part of sounding rocket. The pneumatic system for inflation was developed by LPSC. The IAD has systematically reduced the velocity of the payload through aerodynamic drag and followed the predicted trajectory. This is first time that an IAD is designed specifically for spent stage recovery. All the objectives of the mission were successfully demonstrated
ISRO claims this design can not only facilitate the reuse of first stages, it can also be used for science payloads to Mars and Venus.
I look at this and wonder, wouldn’t parachutes or parasails, already developed and used numerous times in similar applications, do the same job? In fact, Rocket Lab has already successfully used parachutes to control the re-entry of its Electron first stages. Meanwhile, SpaceX uses simple and lightweight grid fins to control the descent of its Falcon 9 first stages, and simply fires that stage’s engines twice to slow it down for landing.
While there may be engineer advantages to this airbag design, the whole thing smacks of many of NASA’S complex test programs that never made it past prototype tests. The ideas always looked good, but they never were practical or cost effective.
India’s space agency ISRO on September 3, 2022 successfully used a suborbital sounding rocket to test a prototype of an inflatable airbag, which it dubs an Inflatable Aerodynamic Decelerator (IAD), that can inflate at the top of a 1st stage and slow and control its descent back to Earth after launch.
The graphic to the right was adapted from the mission brochure [pdf]. According to ISRO:
The IAD was initially folded and kept inside the payload bay of the rocket. At around 84 km altitude, the IAD was inflated and it descended through atmosphere with the payload part of sounding rocket. The pneumatic system for inflation was developed by LPSC. The IAD has systematically reduced the velocity of the payload through aerodynamic drag and followed the predicted trajectory. This is first time that an IAD is designed specifically for spent stage recovery. All the objectives of the mission were successfully demonstrated
ISRO claims this design can not only facilitate the reuse of first stages, it can also be used for science payloads to Mars and Venus.
I look at this and wonder, wouldn’t parachutes or parasails, already developed and used numerous times in similar applications, do the same job? In fact, Rocket Lab has already successfully used parachutes to control the re-entry of its Electron first stages. Meanwhile, SpaceX uses simple and lightweight grid fins to control the descent of its Falcon 9 first stages, and simply fires that stage’s engines twice to slow it down for landing.
While there may be engineer advantages to this airbag design, the whole thing smacks of many of NASA’S complex test programs that never made it past prototype tests. The ideas always looked good, but they never were practical or cost effective.
Indian rocket startup raises $51 million in private investment capital
Capitalism in space: The Indian rocket startup Skyroot has just raised $51 million in private investment capital for the development of its smallsat rocket, Vikram-1.
Operating as a private aerospace manufacturer and commercial launch service provider in the country, the Hyderabad-headquartered startup has been working on its flagship Vikram series of small-life launch vehicles. The first among them, the Vikram 1, is slated to take to the skies by the end of the year and launch small satellites to space.
The $51 million is the most any private aerospace commercial company from India has ever raised in a single funding round.
Though the Modi government has publicly encouraged the development of a private, independent, commercial aerospace industry, India’s bureaucracy has generally acted to block this effort. In 2019 it convinced the government to create New Space India Limited (NSIL), a wholly government-owned entity which is designed to retain as much control over commercial market share as possible. As recently as one month ago, the NSIL webpage described itself as aiming to “capture” that commercial market. That revealed its purpose too obviously, so the website was rewritten to now say its goal is to “spur” the Indian aerospace sector.
Because NSIL gets government money and has full control over all of India’s already developed government rockets and space facilities, it has an enormous advantage, which acts to discourage investment in new private companies such as Skyroot. This is a similar situation that existed in the U.S. for more than a half century following Apollo. NASA had the resources, controlled all launches, and thus made private investment for independent companies hard to obtain.
This only changed when NASA began awarding contracts to private companies in 2008, whereby the rockets and spacecraft produced were not owned or designed by NASA. And NASA was only forced to do so because Elon Musk happened to have enough of his own money to finance SpaceX himself.
When ISRO (India’s agency) or NSIL begin awarding contracts like this, then company’s like Skyroot will begin to blossom.
Capitalism in space: The Indian rocket startup Skyroot has just raised $51 million in private investment capital for the development of its smallsat rocket, Vikram-1.
Operating as a private aerospace manufacturer and commercial launch service provider in the country, the Hyderabad-headquartered startup has been working on its flagship Vikram series of small-life launch vehicles. The first among them, the Vikram 1, is slated to take to the skies by the end of the year and launch small satellites to space.
The $51 million is the most any private aerospace commercial company from India has ever raised in a single funding round.
Though the Modi government has publicly encouraged the development of a private, independent, commercial aerospace industry, India’s bureaucracy has generally acted to block this effort. In 2019 it convinced the government to create New Space India Limited (NSIL), a wholly government-owned entity which is designed to retain as much control over commercial market share as possible. As recently as one month ago, the NSIL webpage described itself as aiming to “capture” that commercial market. That revealed its purpose too obviously, so the website was rewritten to now say its goal is to “spur” the Indian aerospace sector.
Because NSIL gets government money and has full control over all of India’s already developed government rockets and space facilities, it has an enormous advantage, which acts to discourage investment in new private companies such as Skyroot. This is a similar situation that existed in the U.S. for more than a half century following Apollo. NASA had the resources, controlled all launches, and thus made private investment for independent companies hard to obtain.
This only changed when NASA began awarding contracts to private companies in 2008, whereby the rockets and spacecraft produced were not owned or designed by NASA. And NASA was only forced to do so because Elon Musk happened to have enough of his own money to finance SpaceX himself.
When ISRO (India’s agency) or NSIL begin awarding contracts like this, then company’s like Skyroot will begin to blossom.
SpaceX launches another 51 Starlink satellites and orbital tug
Capitalism in space: SpaceX tonight successfully used its Falcon 9 rocket to place 51 more Starlink satellites into orbit, as well as a Sherpa orbital tug built by the commercial company Spaceflight.
The first stage completed its seventh flight, landing on a drone ship in the Atlantic. The tug was successfully deployed and will carry a Boeing test satellite for a proposed 147 satellite constellation to its planned orbit.
The leaders in the 2022 launch race:
40 SpaceX
34 China
11 Russia
6 Rocket Lab
5 ULA
American private enterprise now leads China 55 to 34 in the national rankings, and the entire world combined 55 to 52. SpaceX’s 40 launches matches the U.S.’s entire total in 2020, and was only exceeded by the U.S. six times since the dawn of the space age in 1957.
Capitalism in space: SpaceX tonight successfully used its Falcon 9 rocket to place 51 more Starlink satellites into orbit, as well as a Sherpa orbital tug built by the commercial company Spaceflight.
The first stage completed its seventh flight, landing on a drone ship in the Atlantic. The tug was successfully deployed and will carry a Boeing test satellite for a proposed 147 satellite constellation to its planned orbit.
The leaders in the 2022 launch race:
40 SpaceX
34 China
11 Russia
6 Rocket Lab
5 ULA
American private enterprise now leads China 55 to 34 in the national rankings, and the entire world combined 55 to 52. SpaceX’s 40 launches matches the U.S.’s entire total in 2020, and was only exceeded by the U.S. six times since the dawn of the space age in 1957.
NASA to roll SLS back to assembly building, delaying launch by weeks at minimum
NASA managers today decided they will not attempt another launch of SLS during the present launch window that closes on September 6, 2022, and will bring the rocket back to assembly building for more detailed trouble-shooting.
Engineers not only need to solve the hydrogen fuel leak in a fuel line connection that caused today’s launch scrub, they will also have to replace the flight termination batteries needed in case the rocket has to be destroyed during liftoff because it is flying out of control. These batteries only have a few weeks life, and the launch delays this week caused them to reach their limit.
The next launch windows are either from September 19 to October 4, excluding September 29-30, or October 17 to October 31, excluding October 24, 25, 26, and 28.
At that point SLS’s two solid rocket strap-on boosters will have been stacked for about two years, one full year past what NASA once considered their safe lifespan. The agency has waived that rule for SLS, but waiving it for more than a full year might simply be too risky. If the boosters need to be replaced, that will delay the launch by at least another three months, at the minimum.
Right now the odds remain high this launch will not occur in 2022.
NASA managers today decided they will not attempt another launch of SLS during the present launch window that closes on September 6, 2022, and will bring the rocket back to assembly building for more detailed trouble-shooting.
Engineers not only need to solve the hydrogen fuel leak in a fuel line connection that caused today’s launch scrub, they will also have to replace the flight termination batteries needed in case the rocket has to be destroyed during liftoff because it is flying out of control. These batteries only have a few weeks life, and the launch delays this week caused them to reach their limit.
The next launch windows are either from September 19 to October 4, excluding September 29-30, or October 17 to October 31, excluding October 24, 25, 26, and 28.
At that point SLS’s two solid rocket strap-on boosters will have been stacked for about two years, one full year past what NASA once considered their safe lifespan. The agency has waived that rule for SLS, but waiving it for more than a full year might simply be too risky. If the boosters need to be replaced, that will delay the launch by at least another three months, at the minimum.
Right now the odds remain high this launch will not occur in 2022.
Taking Starlink on a vacation sailing trip
A Starlink subscriber to the company’s RV option decided to try it on his sailing boat during a weeklong trip among the Greek islands, and found it worked surprisingly well.
They combined Starlink’s service with cellular connectivity and compared the two while using social media, Google maps, and video streaming. The outcome? Starlink and cellular complimented each other, according to Topolev.
Starlink suffered outages when it was surrounded by other boats’ masts or when the yacht made sharp turns, but worked well at sea, whereas cellular connectivity dropped out when the boat was far from the shore, Topolev said. “It was surprisingly good,” he said. “There were some outages and sometimes we had to manually reboot it … but basically it worked … almost all the time.”
The RV option is specifically for use in moving vehicles, though its use on a boat was not expected to be its prime target customers. Nonetheless, the test suggests strongly that Starlink will work quite well on the big cruise ships, one liner of which, Royal Caribbean, has already signed a deal to make Starlink operational by next year.
A Starlink subscriber to the company’s RV option decided to try it on his sailing boat during a weeklong trip among the Greek islands, and found it worked surprisingly well.
They combined Starlink’s service with cellular connectivity and compared the two while using social media, Google maps, and video streaming. The outcome? Starlink and cellular complimented each other, according to Topolev.
Starlink suffered outages when it was surrounded by other boats’ masts or when the yacht made sharp turns, but worked well at sea, whereas cellular connectivity dropped out when the boat was far from the shore, Topolev said. “It was surprisingly good,” he said. “There were some outages and sometimes we had to manually reboot it … but basically it worked … almost all the time.”
The RV option is specifically for use in moving vehicles, though its use on a boat was not expected to be its prime target customers. Nonetheless, the test suggests strongly that Starlink will work quite well on the big cruise ships, one liner of which, Royal Caribbean, has already signed a deal to make Starlink operational by next year.
Ingenuity’s flight plan for its next and 31st flight
Click for interactive map
The Ingenuity engineering team today released the flight plan for the helicopter’s next flight on Mars, its thirty-first since arrival.
The flight is scheduled for no earlier than September 6, mid-day on Mars, and will travel about one minute to the west for a distance of about 319 feet. The white dot on the overview map to the right shows the approximate landing spot, with the green dot marking Ingenuity’s present position. The blue dot marks Perseverance’s present position as it moves to the south and west after leaving the first delta cliff face it studied during the past few months.
The flight’s main goal is to reposition the helicopter to keep it close to the rover to facilitate communications. However, the engineering team has also now adjusted its goals to also practice hitting very precise landing spots. This goal is to develop the engineering and software that can be used on the helicopter that is not yet built that NASA and ESA intend to use to recover Perseverance’s core samples for return to Earth. That helicopter will not only have to very precisely land right next to those samples in a position allowing it to grab them, it must also land very precisely next to the sample return spacecraft to deposit them within it.
Click for interactive map
The Ingenuity engineering team today released the flight plan for the helicopter’s next flight on Mars, its thirty-first since arrival.
The flight is scheduled for no earlier than September 6, mid-day on Mars, and will travel about one minute to the west for a distance of about 319 feet. The white dot on the overview map to the right shows the approximate landing spot, with the green dot marking Ingenuity’s present position. The blue dot marks Perseverance’s present position as it moves to the south and west after leaving the first delta cliff face it studied during the past few months.
The flight’s main goal is to reposition the helicopter to keep it close to the rover to facilitate communications. However, the engineering team has also now adjusted its goals to also practice hitting very precise landing spots. This goal is to develop the engineering and software that can be used on the helicopter that is not yet built that NASA and ESA intend to use to recover Perseverance’s core samples for return to Earth. That helicopter will not only have to very precisely land right next to those samples in a position allowing it to grab them, it must also land very precisely next to the sample return spacecraft to deposit them within it.
China’s Long March 4C rocket launches military satellite
China today successfully used its Long March 4C rocket to place a military Earth observation satellite into orbit.
Launched from an interior spaceport, the rocket’s lower stages thus crashed uncontrolled in China.
The leaders in the 2022 launch race:
39 SpaceX
34 China
11 Russia
6 Rocket Lab
5 ULA
American private enterprise still leads China 54 to 34 in the national rankings, and the entire globe 54 to 52.
China today successfully used its Long March 4C rocket to place a military Earth observation satellite into orbit.
Launched from an interior spaceport, the rocket’s lower stages thus crashed uncontrolled in China.
The leaders in the 2022 launch race:
39 SpaceX
34 China
11 Russia
6 Rocket Lab
5 ULA
American private enterprise still leads China 54 to 34 in the national rankings, and the entire globe 54 to 52.
OneWeb lost $229 million when Russia canceled its launches and confiscated its satellites
On September 1, 2022, OneWeb revealed that Russia’s cancellation of the last six or so OneWeb launches as well as Russia’s confiscation of 36 satellites cost the company $229 million.
Russia’s actions were the response by then head of Roscosmos, Dmitry Rogozin, to sanctions imposed on Russia by the west because of its invasion of the Ukraine. Rogozin’s petty response ended up shooting his space agency in the foot, because it ended up losing billions of dollars in foreign launch business, business that is not likely to return for decades.
OneWeb has since signed contracts with SpaceX, ISRO (India’s space agency), and Relativity for future launches. None of these have been firmly scheduled, though the first by SpaceX is tentatively planned for sometime before the end of the year.
On September 1, 2022, OneWeb revealed that Russia’s cancellation of the last six or so OneWeb launches as well as Russia’s confiscation of 36 satellites cost the company $229 million.
Russia’s actions were the response by then head of Roscosmos, Dmitry Rogozin, to sanctions imposed on Russia by the west because of its invasion of the Ukraine. Rogozin’s petty response ended up shooting his space agency in the foot, because it ended up losing billions of dollars in foreign launch business, business that is not likely to return for decades.
OneWeb has since signed contracts with SpaceX, ISRO (India’s space agency), and Relativity for future launches. None of these have been firmly scheduled, though the first by SpaceX is tentatively planned for sometime before the end of the year.
SLS test launch scrubbed again
NASA engineers once again were forced to scrub the launch of the SLS rocket today due to another hydrogen leak during fueling.
The launch director waived off today’s Artemis I launch attempt at approximately 11:17 a.m. EDT. Teams encountered a liquid hydrogen leak while loading the propellant into the core stage of the Space Launch System rocket. Multiple troubleshooting efforts to address the area of the leak by reseating a seal in the quick disconnect where liquid hydrogen is fed into the rocket did not fix the issue.
NASA has one more chance, on September 5th, to launch this rocket before it must return it to the assembly building to replace the flight termination batteries, used to abort the launch after liftoff should something go seriously wrong during flight. As I understand it, their use-by date is September 6th, and it would require a major safety waiver by the military range officer, who is entirely independent from NASA and under no obligation to it, to allow for a launch after that date with those batteries.
NASA engineers once again were forced to scrub the launch of the SLS rocket today due to another hydrogen leak during fueling.
The launch director waived off today’s Artemis I launch attempt at approximately 11:17 a.m. EDT. Teams encountered a liquid hydrogen leak while loading the propellant into the core stage of the Space Launch System rocket. Multiple troubleshooting efforts to address the area of the leak by reseating a seal in the quick disconnect where liquid hydrogen is fed into the rocket did not fix the issue.
NASA has one more chance, on September 5th, to launch this rocket before it must return it to the assembly building to replace the flight termination batteries, used to abort the launch after liftoff should something go seriously wrong during flight. As I understand it, their use-by date is September 6th, and it would require a major safety waiver by the military range officer, who is entirely independent from NASA and under no obligation to it, to allow for a launch after that date with those batteries.
September 2, 2022 Zimmerman/Batchelor podcast
Embedded below the fold in two parts.
To listen to all of John Batchelor’s podcasts, go here.
» Read more
Embedded below the fold in two parts.
To listen to all of John Batchelor’s podcasts, go here.
» Read more
Foxes and Fossils – Can’t Let Go
An evening pause: Performed live 2013. I’ve posted a number of performances by this group previously. They do magnificent covers of many classic songs. Their Patreon site is here.
Hat tip John Jossy.
September 2, 2022 Quick space links
Courtesy of BtB’s stringer Jay.
The tweet however provides no date for the test, nor any information about this particular engine itself.
This is preliminary design work involving Earth-based tests. A later phase, not yet awarded, will move on to orbital tests.
Most of this new private capital apparently came from Saudi Arabia and Greece, and the constellation will start out focused on serving those regions as well as Luxembourg.
Courtesy of BtB’s stringer Jay.
The tweet however provides no date for the test, nor any information about this particular engine itself.
This is preliminary design work involving Earth-based tests. A later phase, not yet awarded, will move on to orbital tests.
Most of this new private capital apparently came from Saudi Arabia and Greece, and the constellation will start out focused on serving those regions as well as Luxembourg.
Sunspot update: Solar activity continues to exceed sunspot predictions
It is the beginning of September and time to post another update on the Sun’s ongoing solar cycle. Below is NOAA’s monthly graph tracking the number of sunspots on the Sun’s Earth-facing hemisphere, with the activity in August now added. I have also added some additional details to the graph to give the numbers a larger context.
Though sunspot activity dropped in August it remained significantly above the predictions of the panel of government solar scientists put together by NOAA. The predicted sunspot number for August, as indicated by the red curve, was supposed to be about 48. The actual number was 75.
It is the beginning of September and time to post another update on the Sun’s ongoing solar cycle. Below is NOAA’s monthly graph tracking the number of sunspots on the Sun’s Earth-facing hemisphere, with the activity in August now added. I have also added some additional details to the graph to give the numbers a larger context.
Though sunspot activity dropped in August it remained significantly above the predictions of the panel of government solar scientists put together by NOAA. The predicted sunspot number for August, as indicated by the red curve, was supposed to be about 48. The actual number was 75.
Pushback: Maine parent wins lawsuit against school board for attempting to ban him
McBreairty speaking in front of the Hermon town council about the
lawsuit against him. Click for video from which this image was captured.
Bring a gun to a knife fight: Shawn McBreairty, a Maine parent who had repeatedly challenged two different local school districts, including his own, for their efforts to teach the queer agenda to little children, yesterday won a $40K settlement from one of those school boards, Regional School Unit #22, after a court judge had ruled that the board’s actions to ban and censor McBreaity clearly violated his first amendment rights.
This is an update of an earlier August 1, 2022 blacklist column. Because McBreairty had tried to read aloud at a board meeting the pornography contained in several books that the school board had approved for its school children, he was silenced, then banned from attending school board meetings, both in person and virtually, for the next eight months.
When the judge ruled entirely in McBreairty’s favor, issuing a temporary injunction against the school board’s actions, the board clearly recognized its case would not hold up in court, and it chose to settle, paying $40K for McBreairty’s legal fees. As the judge noted in her decision:
» Read more
McBreairty speaking in front of the Hermon town council about the
lawsuit against him. Click for video from which this image was captured.
Bring a gun to a knife fight: Shawn McBreairty, a Maine parent who had repeatedly challenged two different local school districts, including his own, for their efforts to teach the queer agenda to little children, yesterday won a $40K settlement from one of those school boards, Regional School Unit #22, after a court judge had ruled that the board’s actions to ban and censor McBreaity clearly violated his first amendment rights.
This is an update of an earlier August 1, 2022 blacklist column. Because McBreairty had tried to read aloud at a board meeting the pornography contained in several books that the school board had approved for its school children, he was silenced, then banned from attending school board meetings, both in person and virtually, for the next eight months.
When the judge ruled entirely in McBreairty’s favor, issuing a temporary injunction against the school board’s actions, the board clearly recognized its case would not hold up in court, and it chose to settle, paying $40K for McBreairty’s legal fees. As the judge noted in her decision:
» Read more
Chinese astronauts complete first spacewalk using new Wentian module
The new colonial movement: Chinese astronauts yesterday completed their first spacewalk using the airlock on the new Wentian module that was recently launched to that nation’s Tiangong-3 space station.
The spacewalk lasted six hours, and was mostly designed to test the airlock itself as well as do the first tests of Wentian’s own robot arm. It appears they also installed an “extended pump set”, whatever that is, and did other work near the hatch. More here.
The new colonial movement: Chinese astronauts yesterday completed their first spacewalk using the airlock on the new Wentian module that was recently launched to that nation’s Tiangong-3 space station.
The spacewalk lasted six hours, and was mostly designed to test the airlock itself as well as do the first tests of Wentian’s own robot arm. It appears they also installed an “extended pump set”, whatever that is, and did other work near the hatch. More here.
NASA is paying Boeing twice as much as SpaceX for its manned flights
Capitalism in space: in an excellent analysis of the total amount NASA will pay both SpaceX and Boeing for all their manned flights to ISS before the station retires, Eric Berger at Ars Technica has determined that the agency will essentially pay Boeing twice as much per flight.
In 2014, NASA narrowed the crew competition to just two companies, Boeing and SpaceX. At that time, the space agency awarded Boeing $4.2 billion in funding for development of the Starliner spacecraft and six operational crew flights. Later, in an award that NASA’s own inspector general described as “unnecessary,” NASA paid Boeing an additional $287.2 million. This brings Boeing’s total to $4.49 billion, although Finch told Ars that Boeing’s contract value as of August 1, 2022, is $4.39 billion.
For the same services, development of Crew Dragon and six operational missions, NASA paid SpaceX $2.6 billion. After its initial award, NASA has agreed to buy an additional eight flights from SpaceX—Crew-7, -8, -9, -10, -11, -12, -13, and -14—through the year 2030. This brings the total contract awarded to SpaceX to $4.93 billion.
Since we now know how many flights each company will be providing NASA through the lifetime of the International Space Station, and the full cost of those contracts, we can break down the price NASA is paying each company per seat by amortizing the development costs.
Boeing, in flying 24 astronauts, has a per-seat price of $183 million. SpaceX, in flying 56 astronauts during the same time frame, has a seat price of $88 million. Thus, NASA is paying Boeing 2.1 times the price per seat that it is paying SpaceX, inclusive of development costs incurred by NASA.
Despite the larger payments to Boeing, the company could very well lose money on Starliner. The higher cost to NASA from Boeing is due almost entirely because the agency was absorbing more of its initial development cost. SpaceX’s Dragon capsule had already been flying cargo missions to ISS when these manned contracts were awarded. SpaceX merely had to upgrade its manned capsule. Boeing had to design and build it from scratch. Moreover, the contracts were fixed price, which means Boeing had to absorb more than a half billion in additional costs when it had to refly the unmanned demo flight of Starliner.
Finally, because of the delays, Boeing won less NASA business. It also has gotten none of the private commercial manned flights that are going on right now. Those contracts went to SpaceX, including all the profits. Whether Boeing can eventually win some private contracts down the road is unknown. It will certainly have to lower its price to compete with SpaceX.
Capitalism in space: in an excellent analysis of the total amount NASA will pay both SpaceX and Boeing for all their manned flights to ISS before the station retires, Eric Berger at Ars Technica has determined that the agency will essentially pay Boeing twice as much per flight.
In 2014, NASA narrowed the crew competition to just two companies, Boeing and SpaceX. At that time, the space agency awarded Boeing $4.2 billion in funding for development of the Starliner spacecraft and six operational crew flights. Later, in an award that NASA’s own inspector general described as “unnecessary,” NASA paid Boeing an additional $287.2 million. This brings Boeing’s total to $4.49 billion, although Finch told Ars that Boeing’s contract value as of August 1, 2022, is $4.39 billion.
For the same services, development of Crew Dragon and six operational missions, NASA paid SpaceX $2.6 billion. After its initial award, NASA has agreed to buy an additional eight flights from SpaceX—Crew-7, -8, -9, -10, -11, -12, -13, and -14—through the year 2030. This brings the total contract awarded to SpaceX to $4.93 billion.
Since we now know how many flights each company will be providing NASA through the lifetime of the International Space Station, and the full cost of those contracts, we can break down the price NASA is paying each company per seat by amortizing the development costs.
Boeing, in flying 24 astronauts, has a per-seat price of $183 million. SpaceX, in flying 56 astronauts during the same time frame, has a seat price of $88 million. Thus, NASA is paying Boeing 2.1 times the price per seat that it is paying SpaceX, inclusive of development costs incurred by NASA.
Despite the larger payments to Boeing, the company could very well lose money on Starliner. The higher cost to NASA from Boeing is due almost entirely because the agency was absorbing more of its initial development cost. SpaceX’s Dragon capsule had already been flying cargo missions to ISS when these manned contracts were awarded. SpaceX merely had to upgrade its manned capsule. Boeing had to design and build it from scratch. Moreover, the contracts were fixed price, which means Boeing had to absorb more than a half billion in additional costs when it had to refly the unmanned demo flight of Starliner.
Finally, because of the delays, Boeing won less NASA business. It also has gotten none of the private commercial manned flights that are going on right now. Those contracts went to SpaceX, including all the profits. Whether Boeing can eventually win some private contracts down the road is unknown. It will certainly have to lower its price to compete with SpaceX.
Rocket Lab completes first static fire test of previously flown rocket engine
Capitalism in space: Rocket Lab has successfully completed for the first time a full duration static fire test using one of its Rutherford rocket engines that had been flown on a launch earlier this year, recovered, and refurbished.
The engine was previously successfully launched to space and returned to Earth during Rocket Lab’s recent recovery mission, ‘There And Back Again’, launched on May 2, 2022. The mission was the first time Rocket Lab attempted a mid-air capture of Electron’s first stage, using parachutes on the rocket to slow its descent from space before a helicopter plucked the rocket from the sky as it approached Earth’s surface. The Electron stage was ultimately released for a soft ocean splashdown, before it was collected by vessel and returned to Rocket Lab’s production complex.
The refurbished Rutherford engine passed all of the same rigorous acceptance tests Rocket Lab performs for every engine, including 200 seconds of engine fire and multiple restarts. Data from the test fire shows the engine produced full thrust of 21kNs within 1000 milliseconds of ignition and performed to the same standard of a newly-built Rutherford engine. This Rutherford engine will now continue as an engine life-leader for future Rutherford development.
I have embedded a video of the full test below. This achievement makes Rocket Lab only the third company to successfully refire a previously flown engine, after SpaceX and NASA’s space shuttle engines. It might also be the first time an engine recovered from the ocean has been successfully refurbished. SpaceX had tried to do the same with early Falcon 9 first stages, before they could land vertically, but all accounts suggested the salt water made the engines unusable.
Based on the the quote above, however, this engine will not be used on a future flight, but for testing only. The company still intends to catch the stages as they descend by parachute with a helicopter, which will then transport them safely to land. Further attempts to do so will take place in later launches this year.
Capitalism in space: Rocket Lab has successfully completed for the first time a full duration static fire test using one of its Rutherford rocket engines that had been flown on a launch earlier this year, recovered, and refurbished.
The engine was previously successfully launched to space and returned to Earth during Rocket Lab’s recent recovery mission, ‘There And Back Again’, launched on May 2, 2022. The mission was the first time Rocket Lab attempted a mid-air capture of Electron’s first stage, using parachutes on the rocket to slow its descent from space before a helicopter plucked the rocket from the sky as it approached Earth’s surface. The Electron stage was ultimately released for a soft ocean splashdown, before it was collected by vessel and returned to Rocket Lab’s production complex.
The refurbished Rutherford engine passed all of the same rigorous acceptance tests Rocket Lab performs for every engine, including 200 seconds of engine fire and multiple restarts. Data from the test fire shows the engine produced full thrust of 21kNs within 1000 milliseconds of ignition and performed to the same standard of a newly-built Rutherford engine. This Rutherford engine will now continue as an engine life-leader for future Rutherford development.
I have embedded a video of the full test below. This achievement makes Rocket Lab only the third company to successfully refire a previously flown engine, after SpaceX and NASA’s space shuttle engines. It might also be the first time an engine recovered from the ocean has been successfully refurbished. SpaceX had tried to do the same with early Falcon 9 first stages, before they could land vertically, but all accounts suggested the salt water made the engines unusable.
Based on the the quote above, however, this engine will not be used on a future flight, but for testing only. The company still intends to catch the stages as they descend by parachute with a helicopter, which will then transport them safely to land. Further attempts to do so will take place in later launches this year.
SLS countdown resumes
NASA has resumed the countdown for the launch of the SLS rocket on Saturday, September 3, with a two-hour launch window beginning at 2:17 pm (Eastern).
The live stream is available here.
NASA has resumed the countdown for the launch of the SLS rocket on Saturday, September 3, with a two-hour launch window beginning at 2:17 pm (Eastern).
The live stream is available here.
Delta Goodrem – In This Life
On Mars you can find glaciers everywhere in the mid-latitudes
Click for full image.
Cool image time! If you ever decide to have some fun exploring the archive of images being sent back to Earth by the high resolution camera on Mars Reconnaissance Orbiter (MRO), always remember that the latitude of the image will almost immediately help to explain the strange features that you see in each picture.
The hi-res photo to the right, rotated, cropped, and reduced to post here, was taken on May 22, 2022 and provides us a great example. The jumbled features in the depression on the image’s right half surely look like the glacial features seen routinely in the 2,000-mile-long strip found in the 30 to 60 degree band in the chaos terrain of the northern lowland plains. In fact, it is likely that cycles of ebb and flow of those glaciers helped shape this chaos of buttes and mesas and cross-cutting canyons.
This picture however is nowhere near any chaos terrain, or that 2,000 long strip. In fact, it is instead in an area that appears mostly formed by tectonic and volcanic activity, as the overview map below shows.
» Read more
Click for full image.
Cool image time! If you ever decide to have some fun exploring the archive of images being sent back to Earth by the high resolution camera on Mars Reconnaissance Orbiter (MRO), always remember that the latitude of the image will almost immediately help to explain the strange features that you see in each picture.
The hi-res photo to the right, rotated, cropped, and reduced to post here, was taken on May 22, 2022 and provides us a great example. The jumbled features in the depression on the image’s right half surely look like the glacial features seen routinely in the 2,000-mile-long strip found in the 30 to 60 degree band in the chaos terrain of the northern lowland plains. In fact, it is likely that cycles of ebb and flow of those glaciers helped shape this chaos of buttes and mesas and cross-cutting canyons.
This picture however is nowhere near any chaos terrain, or that 2,000 long strip. In fact, it is instead in an area that appears mostly formed by tectonic and volcanic activity, as the overview map below shows.
» Read more
Today’s blacklisted American: Google scholarship sets racist quotas favoring minorities
Google: dedicated to the new segregation!
“Segregation today, segregation tomorrow, segregation forever!” Tech giant Google has established a discriminatory fellowship program that major universities can participate in that specifically favors some races while barring others.
The Google Ph.D. Fellowship, which gives promising computer scientists nearly $100,000, allows each participating university—a group that includes most elite schools—to nominate four Ph.D. students annually. “If a university chooses to nominate more than two students,” Google says, “the third and fourth nominees must self-identify as a woman, Black / African descent, Hispanic / Latino / Latinx, Indigenous, and/or a person with a disability.”
So no one misunderstands Google’s very specific discriminatory intent, here is the exact quote from its FAQ about the fellowship program:
» Read more
Google: dedicated to the new segregation!
“Segregation today, segregation tomorrow, segregation forever!” Tech giant Google has established a discriminatory fellowship program that major universities can participate in that specifically favors some races while barring others.
The Google Ph.D. Fellowship, which gives promising computer scientists nearly $100,000, allows each participating university—a group that includes most elite schools—to nominate four Ph.D. students annually. “If a university chooses to nominate more than two students,” Google says, “the third and fourth nominees must self-identify as a woman, Black / African descent, Hispanic / Latino / Latinx, Indigenous, and/or a person with a disability.”
So no one misunderstands Google’s very specific discriminatory intent, here is the exact quote from its FAQ about the fellowship program:
» Read more
Musk tweets that SpaceX wants to complete 100 launches in 2023
Capitalism in space: Elon Musk yesterday tweeted that SpaceX’ is now planning to attempt about 100 launches next year, which will almost double its expected output this year.
To get some perspective of this goal, 100 launches in a single year would be more launches than the entire world completed each year from 1991 (after the fall of the Soviet Union) through 2017 (before the recent resurgence of American commercial rocketry).
This decision probably relates to getting SpaceX’s Starlink constellation operational. Musk had hoped to begin Starship launches of Starlink soon, and now likely recognizes that such launches are probably more than a year away. Moreover, this year SpaceX engineers have demonstrated that the Falcon 9 can launch a lot of these satellites. So far in 2022 it has launched about 50 Starlink satellites per launch, and done so about 25 times. That’s 1,250 satellites in a little more than half a year. With a 100 launches, Falcon 9 could launch about 5,000 satellites alone next year, a pace that will certainly be sufficient in the short run to get Starlink operational.
Capitalism in space: Elon Musk yesterday tweeted that SpaceX’ is now planning to attempt about 100 launches next year, which will almost double its expected output this year.
To get some perspective of this goal, 100 launches in a single year would be more launches than the entire world completed each year from 1991 (after the fall of the Soviet Union) through 2017 (before the recent resurgence of American commercial rocketry).
This decision probably relates to getting SpaceX’s Starlink constellation operational. Musk had hoped to begin Starship launches of Starlink soon, and now likely recognizes that such launches are probably more than a year away. Moreover, this year SpaceX engineers have demonstrated that the Falcon 9 can launch a lot of these satellites. So far in 2022 it has launched about 50 Starlink satellites per launch, and done so about 25 times. That’s 1,250 satellites in a little more than half a year. With a 100 launches, Falcon 9 could launch about 5,000 satellites alone next year, a pace that will certainly be sufficient in the short run to get Starlink operational.
SpaceX completes static fire test of three engines on Superheavy prototype #7
Capitalism in space: SpaceX yesterday successfully completed the first static fire test of more than one engine on its Superheavy prototype #7, firing three engines for five seconds.
NASASpaceflight livestreamed the test, and its footage suggests that only two engines may have fully lit up, with the third perhaps aborting. Whether or not the third Raptor joined the party, however, it was still the first multi-engine Super Heavy static fire that SpaceX has performed.
I have embedded that footage below. Expect more such tests in the coming days. If all works as planned (something we should not expect as this remains a development program), the tests will culminate in an orbital test flight sending Starship on a one orbit mission around the Earth. At present SpaceX wants that flight to occur before the end of this year.
Capitalism in space: SpaceX yesterday successfully completed the first static fire test of more than one engine on its Superheavy prototype #7, firing three engines for five seconds.
NASASpaceflight livestreamed the test, and its footage suggests that only two engines may have fully lit up, with the third perhaps aborting. Whether or not the third Raptor joined the party, however, it was still the first multi-engine Super Heavy static fire that SpaceX has performed.
I have embedded that footage below. Expect more such tests in the coming days. If all works as planned (something we should not expect as this remains a development program), the tests will culminate in an orbital test flight sending Starship on a one orbit mission around the Earth. At present SpaceX wants that flight to occur before the end of this year.
Webb obtains first direct infrared images of exoplanet
Click for original image.
Using four different infrared instruments on the James Webb Space Telescope, astronomers have obtained the first infrared images of a gas giant with a mass about six to twelve times larger than Jupiter and circling about 100 times farther from its sun.
The montage to the right shows these four images. The white star marks the location of this star, the light of which was blocked out to make the planet’s dim light visible. The bar shapes on either side of the planet in the NIRCam images are artifacts from the instrument’s optics, not objects surrounding the planet.
This is not the first direct image of an exoplanet, as the Hubble Space Telescope has already done so, and done it in the visible spectrum that humans use to see. However, Webb’s infrared images provide a great deal of additional detail about this planet and its immediate surroundings that optical images would not. For example, the MIRI images appear to show us the outer atmosphere of this gas giant.
Click for original image.
Using four different infrared instruments on the James Webb Space Telescope, astronomers have obtained the first infrared images of a gas giant with a mass about six to twelve times larger than Jupiter and circling about 100 times farther from its sun.
The montage to the right shows these four images. The white star marks the location of this star, the light of which was blocked out to make the planet’s dim light visible. The bar shapes on either side of the planet in the NIRCam images are artifacts from the instrument’s optics, not objects surrounding the planet.
This is not the first direct image of an exoplanet, as the Hubble Space Telescope has already done so, and done it in the visible spectrum that humans use to see. However, Webb’s infrared images provide a great deal of additional detail about this planet and its immediate surroundings that optical images would not. For example, the MIRI images appear to show us the outer atmosphere of this gas giant.
Experiment on Perseverance has successfully produced oxygen repeatedly
An engineering experiment on the Mars rover Perseverance, dubbed MOXIE, has now successfully produced oxygen from the carbon dioxide in the Martian atmosphere, and has done so seven different times. After filtering an air sample…
…the air is then pressurized, and sent through the Solid OXide Electrolyzer (SOXE), an instrument developed and built by OxEon Energy, that electrochemically splits the carbon dioxide-rich air into oxygen ions and carbon monoxide. The oxygen ions are then isolated and recombined to form breathable, molecular oxygen, or O2, which MOXIE then measures for quantity and purity before releasing it harmlessly back into the air, along with carbon monoxide and other atmospheric gases.
Since the rover’s landing in February 2021, MOXIE engineers have started up the instrument seven times throughout the Martian year, each time taking a few hours to warm up, then another hour to make oxygen before powering back down. Each run was scheduled for a different time of day or night, and in different seasons, to see whether MOXIE could accommodate shifts in the planet’s atmospheric conditions.
During each run, the instrument produced about six grams of oxygen per hour, though a recent run produced more than 10 grams per hour, about half what a human needs to survive.
MOXIE runs only for short times, because it uses so much power the rover can’t do other work during runs. It is also only a technology test, so its operation is given a lower priority. Nonetheless, it appears that this test has successfully demonstrated that future astronauts on Mars will have a system for producing an unlimited supply of breathable oxygen. The next step would be to scale this up to produce enough oxygen to also fuel the astronaut’s return rocket.
An engineering experiment on the Mars rover Perseverance, dubbed MOXIE, has now successfully produced oxygen from the carbon dioxide in the Martian atmosphere, and has done so seven different times. After filtering an air sample…
…the air is then pressurized, and sent through the Solid OXide Electrolyzer (SOXE), an instrument developed and built by OxEon Energy, that electrochemically splits the carbon dioxide-rich air into oxygen ions and carbon monoxide. The oxygen ions are then isolated and recombined to form breathable, molecular oxygen, or O2, which MOXIE then measures for quantity and purity before releasing it harmlessly back into the air, along with carbon monoxide and other atmospheric gases.
Since the rover’s landing in February 2021, MOXIE engineers have started up the instrument seven times throughout the Martian year, each time taking a few hours to warm up, then another hour to make oxygen before powering back down. Each run was scheduled for a different time of day or night, and in different seasons, to see whether MOXIE could accommodate shifts in the planet’s atmospheric conditions.
During each run, the instrument produced about six grams of oxygen per hour, though a recent run produced more than 10 grams per hour, about half what a human needs to survive.
MOXIE runs only for short times, because it uses so much power the rover can’t do other work during runs. It is also only a technology test, so its operation is given a lower priority. Nonetheless, it appears that this test has successfully demonstrated that future astronauts on Mars will have a system for producing an unlimited supply of breathable oxygen. The next step would be to scale this up to produce enough oxygen to also fuel the astronaut’s return rocket.
NASA thinks engine issue on SLS launch caused by misreading sensor
NASA engineers have now concluded that the improper temperatures in one engine in SLS’s core stage that forced the August 29, 2022 launch to be scrubbed were caused by a faulty sensor, and that the actual temperatures in the engine were correct.
During a news conference on Tuesday evening, NASA’s program manager for the SLS rocket, John Honeycutt, said his engineering team believed the engine had actually cooled down from ambient temperature to near the required level but that it was not properly measured by a faulty temperature sensor. “The way the sensor is behaving does not line up with the physics of the situation,” Honeycutt said.
The problem for NASA is that the sensor cannot be easily replaced and would likely necessitate a rollback to the Vehicle Assembly Building at Kennedy Space Center in Florida, a few kilometers from the launch pad. This would delay the launch of the rocket at least into October, and the space agency is starting to get concerned about wear and tear on a rocket that has now been stacked for nearly a full year.
With this SLS rocket, NASA management is now trapped between a rock and a hard place. The rocket’s solid rocket boosters has been stacked for just short of two years, almost a full year beyond their use-by date. Moreover, there are batteries on the rocket that only function for about a month before they must be replaced. Their replacement date is September 6th, which means if NASA cannot get the rocket launched by that date it will have to return it to the assembly building, delaying the launch to at least October. If it has to replace the solid rocket boosters the launch will likely then be delayed until next year, which will seriously impact the second SLS launch, set to send astronauts around the Moon and back.
At the moment the launch is scheduled for a two hour launch window beginning at 2:17 pm (Eastern) on Saturday, September 3, 2022. The countdown will be live streamed here. At the moment the weather for Saturday has improved, with s 60% chance the launch can proceed.
NASA engineers have now concluded that the improper temperatures in one engine in SLS’s core stage that forced the August 29, 2022 launch to be scrubbed were caused by a faulty sensor, and that the actual temperatures in the engine were correct.
During a news conference on Tuesday evening, NASA’s program manager for the SLS rocket, John Honeycutt, said his engineering team believed the engine had actually cooled down from ambient temperature to near the required level but that it was not properly measured by a faulty temperature sensor. “The way the sensor is behaving does not line up with the physics of the situation,” Honeycutt said.
The problem for NASA is that the sensor cannot be easily replaced and would likely necessitate a rollback to the Vehicle Assembly Building at Kennedy Space Center in Florida, a few kilometers from the launch pad. This would delay the launch of the rocket at least into October, and the space agency is starting to get concerned about wear and tear on a rocket that has now been stacked for nearly a full year.
With this SLS rocket, NASA management is now trapped between a rock and a hard place. The rocket’s solid rocket boosters has been stacked for just short of two years, almost a full year beyond their use-by date. Moreover, there are batteries on the rocket that only function for about a month before they must be replaced. Their replacement date is September 6th, which means if NASA cannot get the rocket launched by that date it will have to return it to the assembly building, delaying the launch to at least October. If it has to replace the solid rocket boosters the launch will likely then be delayed until next year, which will seriously impact the second SLS launch, set to send astronauts around the Moon and back.
At the moment the launch is scheduled for a two hour launch window beginning at 2:17 pm (Eastern) on Saturday, September 3, 2022. The countdown will be live streamed here. At the moment the weather for Saturday has improved, with s 60% chance the launch can proceed.