Tag: engineering

Japan and India successfully complete launches

11:18 am

Japan and India today completed launches of different rockets, one on its first successful test launch.

First, early this morning Japan’s new H3 rocket successfully reached orbit for the first time, on its second attempt. The first attempt had problems, first with a launch abort at T-0 when the solid-fueled strap-on boosters failed to ignite. On the launch attempt the upper stage failed. Today’s launch was a complete success, placing a dummy payload into orbit.

Japan’s space agency JAXA however needs to learn how to run a launch in a professional manner. Minutes prior to launch an announcer began a second-by-second countdown, and continued this for minutes after the launch. Not only was this unnecessary and annoying, it made the real updates impossible to hear. India used to do this in its first few live streams, but quickly recognized the stupidity of it. In addition, the person translating the updates clearly knew nothing about rocket launches, so her translations were tentative and often completely misunderstood what had just happened.

All of this makes JAXA look like a second rate organization, which might also help explain its numerous technical failures in recent years.

About twelve hours later, at mid-day in India, India’s space agency ISRO successfully launched its GSLV rocket, placing a commercial radar environmental satellite into orbit.

The leaders in the 2024 launch race:

15 SpaceX
8 China
2 Iran
2 Russia
2 Japan
2 India

American private enterprise still leads the entire world combined in successful launches 17 to 16, with SpaceX trailing the entire world combined (excluding American companies) 15 to 16.

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The alien surface of Mars

11:13 am

The alien surface of Gediz Vallis
Click for original image.

Overview map
Click for interactive map.

Cool image time! The picture above, brightened slightly to post here, was taken on February 15, 2024 by the right navigation camera on the Mars rover Curiosity. It looks east at the looming cliff face of the mountain Kukenan that the rover has been traveling beside for the last six months. On the overview map to the right the yellow lines indicate roughly the area covered by this picture. The blue dot marks Curiosity’s present position, while the green dot marks its position on February 5, 2024. As you can see, the rover is making slow but steady progress uphill into Gediz Vallis.

This image illustrates the alien landscape of Mars quite beautifully. First, there is absolutely no life in this picture. On Earth you would be hard pressed to find any spot on the surface that doesn’t have at least some plant life.

Second, there is the rocky layered nature of this mountain. When the Curiosity science team first announced its future route plans (the red dotted line) to drive into this canyon back in 2019, the orbital images of these layers from Mars Reconnaissance Orbiter (MRO) had suggested the terrain here would be reminiscent of The Wave in northern Arizona, a smooth series of curved layers smoothed nicely over time by the wind.

As you can see, there is no smoothness here. Instead, every single layer here is infused with broken rock, suggesting that each layer is structurally weak. As erosion exposes each, the layer breaks up, crumbling into the chaos in this picture. The curved nature of the terrain at the bottom of the picture however does suggest that some sort of flow once percolated down this canyon, either liquid water or glacial ice, carving the layers into this curved floor.

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Rocket Lab begins maneuvers to bring Varda’s capsule back to Earth

9:46 am

With the FAA finally giving its okay (six months late), Rocket Lab has now begun the orbital maneuvers required to bring Varda’s small manufacturing capsule back to Earth at the Utah test range.

For more than eight months in space, Rocket Lab’s 300kg-class spacecraft has successfully provided power, communications, ground control, and attitude control to allow Varda’s capsule to grow Ritonavir crystals, a drug commonly used as an antiviral medication for HIV and hepatitis C.

Due to the initial planned reentry date being adjusted from late 2023, Rocket Lab’s spacecraft has been required to operate for more than double its intended orbital lifespan, which it has done without issue.

If all goes as planned, the capsule will land on February 21, 2024. Whether those drugs are still viable and sellable remains unknown. The delay due to government red-tape might have made them useless.

Nonetheless, a success in recovering those samples, viable or not, would establish Varda’s business plan. With three more missions planned, all to be launched and controlled by Rocket Lab, it will be positioned well for the future, its capsule a method for manufacturing a number of products in weightlessness that are needed on Earth but can only be made in space.

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India deorbits a defunct satellite early, in a controlled manner

9:20 am

India’s space agency ISRO yesterday successfully deorbited its defunct Cartosat-2 satellite, using the satellite’s leftover fuel to bring it down in a controlled manner, about three decades sooner than its orbit would have decayed naturally.

The satellite was launched in 2007 to provide detailed ground images of India, and completed its mission in 2019. As noted in ISRO’S press release:

ISRO opted to lower its perigee using leftover fuel to comply with international guidelines on space debris mitigation. This involved reducing collision risks and ensuring safe end-of-life disposal, following recommendations from organizations like the United Nations Committee on the Peaceful Uses of Outer Space (UN-COPOUS) and the Inter-Agency Space Debris Coordination Committee (IADC).

While such actions are a good thing, that governments in India and Europe are suddenly making a big deal about it now — after almost 3/4s of a century of inaction — is not for those reasons, but to lay the political groundwork for allowing the international community, led by the UN, to impose new regulations on all space efforts, both government and private.

Be warned. They are the government, and they are here to help you.

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China targets May 2024 for launch of its Chang’e-6 lunar sample return mission

9:10 am

The Moon's far side
The Moon’s far side. Click for interactive map.

China is now working to a May 2024 launch of its Chang’e-6 lunar sample return mission to bring back about four pounds of material from the far side of the Moon.

The map to the right, created from a global mosaic of Lunar Reconnaissance Orbiter (LRO) imagery, shows the planned location of Chang’e-6’s landing site, in Apollo Basin. The landing site of China’s previous mission to the Moon’s far side, Chang’e-4 and its rover Yutu, is also shown. Both are still operating there, since landing five years ago on January 2, 2019.

Chang’e-6’s mission will be similar to China’s previous lunar sample mission, Chang’e-5, which included a lander, ascender, orbiter, and returner. It launched in November 23, 2020, landed a week later, and within two days grabbed its samples and its ascender lifted off. The samples were back on Earth by December 16, 2020.

There are indications however that Chang’e-6 might spend more time on the surface before its ascender lifts off with samples.

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The shoreline of a Martian lava sea

3:45 pm

The shoreline of a Martian lava sea
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and enhanced to post here, was taken on October 2, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

The science team labeled this a “lava margin.” The darker material on the right is apparently a newer deposit of lava, flowing on top of the lighter lava on the left. The newer deposit is only about three feet thick, so it had to have flowed fast almost like water to cover this large area with such a thin layer before freezing. Even so, this new lava layer has a roughness greater than the older layer below it. Either the older layer is smoother because of erosion from wind over eons, or the lava in these two layers was comprised of slightly different materials that froze with different textures.

The small ridges appear to be wrinkle ridges, created when material shrinks as it freezes.

This margin marks the edge of a very large flood lava event, as illustrated by the overview map below.
» Read more

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OSIRIS-REx brought home twice as much material from Bennu than planned

10:17 am

The inside of OSIRIS-REx's sample return capsule
The material found inside the sample return
capsule. Click for original image.

Curators cataloging the material returned by OSIRIS-REx’s sample capsule from the asteroid Bennu have now completed weighing the material,l and have discovered that the spacecraft grabbed more than twice as much material from Bennu as planned.

NASA’s OSIRIS-REx spacecraft delivered 4.29 ounces (121.6 grams) of material from asteroid Bennu when it returned to Earth on Sep. 24, 2023; the largest asteroid sample ever collected in space and over twice the mission’s requirement. The mission team needed at least 60 grams of material to meet the mission’s science goals, an amount that had already been exceeded before the Touch-and-Go Sample Acquisition Mechanism (TAGSAM) head was completely opened.

More than 60 grams were recovered outside the capsule that had stuck to it during touch-and-go operations. Once they were able to open the capsule and weigh the material inside, they found it had captured as much stuff, so that in total the mission brought back a double complement of material.

This material will now be distributed to scientists worldwide for study. It is likely that it will overturn almost all assumptions presently held about the make-up of the solar system’s asteroid population, since previous to the recent asteroid sample return missions of OSIRIS-REx and Japan’s Hayabusa-2 our only samples came from material that survived after burning through the Earth’s atmosphere. That journey resulted in an incomplete and biased census, with the most delicate material destroyed.

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Space Force cancels major satellite contract with Northrop Grumman

10:02 am

The Space Force today announced it has cancelled a major multi-satellite contract with Northrop Grumman, worth almost a billion dollars, because of cost overruns and scheduling delays.

Northrop was formally notified last month of the termination within “our restricted Space Business,” the defense contractor said in a regulatory filing, using jargon for classified programs. The filing offered no details on the classified satellite or the reasons it was called off, which were provided by people who commented on condition of anonymity because of its secret status.

Based on previous contract announcements, this cancellation appears to be the contract awarded to Northrop Grumman in August 2023, as part of two awards, one to Northrop and the second to Lockheed Martin, with each building 36 satellites of a 72 satellite communications constellation. The Northrop contract was valued at $733 million.

Apparently in the six months since, the Space Force found that Northrop Grumman wasn’t doing a satisfactory. Whether Lockheed Martin will pick up the contract to replace Northrop however is not clear. The Space Force might put it up for bid again.

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SpaceX successfully launches Intuitive Machines Odysseus lunar lander

11:20 pm

South Pole of Moon with landing sites

SpaceX has successfully launched Intuitive Machines commercial Nova-C-class Odysseus lunar lander, its Falcon 9 rocket lifting off from Cape Canaveral at 1:05 am (Eastern) on February 15th.

This was the third launch in less than eleven hours today, and the second launch by SpaceX. The first stage successfully completed its 18th flight, landing back at Cape Canaveral.

The green dot on the map to the right shows the planned landing site for Odysseus, next to a crater with a permanently shadowed interior, though it will have no way to travel into it. This will also be the closest landing to the Moon’s south pole, and if all goes well, will take place eight days from today, where it will operate for about ten Earth days. You can find out more about the lander’s payloads and mission from the press kit [pdf].

It must be emphasized that like India’s Vikram lander and Pragyan rover, Japan’s SLIM lander, and Astrobotic’s Peregrine lander, Odysseus is mostly an engineering test to prove out the landing systems. If this spacecraft does any science on the lunar surface that will be a bonus.

The leaders in the 2024 launch race:

14 SpaceX
8 China
2 Iran
2 Russia

American private enterprise now leads the entire world combined 16 to 14 in successful launches, with SpaceX by itself is now tied the rest of the world combined (excluding American companies) 14 to 14.

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Russia launches Progress freighter to ISS

8:34 pm

Russia today (February 15th in Kazakhstan) successfully used its Soyuz-2 rocket to launch a Progress freighter to ISS.

As happens on launches from Kazakstan to ISS, the rocket’s core stage and strap-on boosters crashed within Kazakstan inside planned crash zones.

This was supposed to be the third launch today, but SpaceX’s second launch today, this time of 22 Starlink satellites, was scrubbed due to weather and reschduled 24 hours till tomorrow at Vandenberg. There is still one more launch scheduled today, SpaceX launching Intuitive Machines Nova-C lunar lander at 9:57 pm (Pacific).

The leaders in the 2024 launch race:

13 SpaceX
8 China
2 Iran
2 Russia

American private enterprise still leads the entire world combined 15 to 14 in successful launches, with SpaceX by itself now trailing the rest of the world combined (excluding American companies) 13 to 14.

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SpaceX launches two military prototype satellites

3:38 pm

SpaceX today successfully launched two prototype reconnaissance satellites for the U.S. military, its Falcon 9 rocket lifting off from Cape Canaveral at 5:30 pm (Eastern) time.

The first stage successfully completed its seventh flight, landing back on at Cape Canaveral.

This is the first of four launches scheduled for the next eleven hours. Next up is another Falcon 9 launch, carrying 22 Starlink satellites and lifting off from Vandenberg in California.

The leaders in the 2024 launch race:

13 SpaceX
8 China
2 Iran

At present American private enterprise leads the entire world combined 15 to 13 in successful launches, with SpaceX by itself tied with the rest of the world combined (excluding American companies) 13 all.

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Spiders on the rim of a Martian crater

3:06 pm

Spiders on the rim of a Martian crater
Click for original image.

Cool image time! The picture to the right, cropped to post here, was taken on December 29, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows strange spidery formations on the rim of a 17-mile-wide crater about 500 miles from the south pole of Mars.

Scientists think these spider features are formed due to the seasonal cycle on Mars. In the winter at the poles the carbon dioxide in the atmosphere falls as snow in the polar regions, creating a thin dry ice mantle that covers everything. When spring arrives, sunlight goes through the clear mantle to heat its base, causing that dry ice to sublimate into gas that is trapped below the mantle. Eventually that mantle cracks at a weak point and the gas escapes, spewing dark dust on its top. By summer the mantle is entirely gone, and the black splotches disappear as they blend back into the same colored ground.

At the south pole the ground appears to be firmer and more structurally sound than at the north pole. The trapped gas appears to travel upward along the same tributary paths to the same escape points each year, thus carving these spidery features that are permanent features.
» Read more

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SpaceX announces plans to build $100 million office complex in Brownsville

10:13 am

According to a filing with the Texas Department of Regulations and Licensing, SpaceX is now planning a $100 million office complex in Brownsville, Texas, in addition to the extensive facilities it is building nearby at its launch site at Boca Chica.

Just a few miles away from its launch site, SpaceX will construct the multimillion-dollar office inside an industrial factory. It will be located at 52198 San Martin Blvd., Brownsville, TX 78521, according to the Texas Department of Regulations and Licensing filing.

Construction is slated to begin this month and is expected to have just under a year turnaround. An estimated start date is listed as February 23, with a completion date of January 1, 2025, according to the TDLR filing. All TDLR filings are subject to change.

It seems to me that the activist group Save RGV (Rio Grand Valley) that is suing SpaceX to shut down Boca Chica is acting to destroy this region, not save it. Before SpaceX showed up the economy of Brownsville and the Rio Grand Valley was very depressed and going nowhere. SpaceX has brought in billions in investment capital as well as tens of thousands of new jobs.

One wonders how any court can rule in favor of Save RGV’s lawsuit that seeks to prevent any future temporary beach closures at Boca Chica and thus outlaw any further launches. Such a ruling would essentially shut down much of what SpaceX is doing in the Brownsville region, and would result in the destruction of this new economic growth.

Such a ruling seems insane, but we should not ignore its possibility. Stupider decisions by courts have been made many times in the past. And it does appear we live in very stupid times.

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Update on SpaceX preparations for 3rd Superheavy/Starship orbital test launch

9:35 am

Link here. SpaceX is apparently now gearing up for a wet dress rehearsal countdown, whereby it performs a full countdown, including fueling both stages and taking everything to T-0. Such rehearsals are a standard procedure for all SpaceX launches.

Whether this launch will occur in early March, as Musk claimed yesterday, remains very uncertain, but not for technical reasons.

The FAA said that the mishap investigation for OFT-2 is still open, pending more information from SpaceX. The license modification requires all needed information to be submitted and reviewed, and the investigation needs to be closed before Starship returns to flight.

Apparently SpaceX has not yet completed its own investigation of the November second test launch. If so, this third launch might be delayed until April, since after the first test launch in April the FAA and Fish & Wildlife took three months after receiving SpaceX’s completed investigation report to approve it and issue a license. The FAA falsely claimed it was doing its own investigation, but the GAO has made it clear this is not so. All it does is rubber stamp the investigations of private companies.

We shall see. Some reports have said that no Fish & Wildlife approval will be required this time, which will speed things up. Others have indicated that the FAA is ready to move quicker. Even so, there remains the outstanding lawsuit by activists against the closing of nearby beaches for each launch. If those litigants demand a court injunction against such closures while the case is on-going, this launch could be delayed far longer.

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One instrument on Perseverance has a problem

9:16 am

One of the instruments on the Mars rover Perseverance appears to have a problem that is preventing it from using its laser to collect spectroscopic data of the nearby Martian surface.

Data and imagery from NASA’s Perseverance Mars rover indicate one of two covers that keep dust from accumulating on the optics of the SHERLOC instrument remains partially open. In this position, the cover interferes with science data collection operations. Mounted on the rover’s robotic arm, SHERLOC uses cameras, a spectrometer, and a laser to search for organic compounds and minerals that have been altered in watery environments and may be signs of past microbial life.

The mission determined on Jan. 6 that the cover was oriented in such a position that some of its operation modes could not successfully operate. An engineering team has been investigating to determine the root cause and possible solutions. Recently, the cover partially opened. To better understand the behavior of the cover’s motor, the team has been sending commands to the instrument that alter the amount of power being fed to it.

Should this troubleshooting fail to fix the dust cover, the rover’s other instruments can still compensate, gathering spectroscopy in other ways. Losing SHERLOC however will still reduce the data that Perseverance can obtain.

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German-built mini-rover for Japanese Phobos mission shipped to Japan

10:05 am

A German-built mini-rover, dubbed Idefix, has now been shipped to Japan to intergrate it as a secondary payload on that country’s MMX mission to the Martian moon Phobos.

The rover itself weighs 25 kilograms (55 pounds), is 51 centimeters long (20 inches), and is designed to explore up to 100 meters of Phobos’ surface. During one of MMX’s closest approaches to Phobos, the rover will be released at an altitude between 40 and 100 meters above the surface and touch down on Phobos. The drop utilizes the low gravity of Phobos, which will allow IDEFIX to just fall onto the surface, roll, and then raise itself to prepare for the roughly three-month-long mission. The gravity of Phobos is only roughly 1/1000th of the gravity of Earth, which can be attributed to the moon’s small size. Phobos only has a diameter of approximately 27 kilometers.

“Thanks to the low gravity, IDEFIX will need between 60 to 80 seconds from release to the touchdown on Phobos. The impact will be with less than one meter per second,” explained Professor Markus Grebenstein, who is DLR’s project lead for IDEFIX, in an interview with NSF.

If all goes right, the rover’s mission will last at least 100 days. MMX itself it scheduled to reach Phobos in 2029.

Meanwhile, scientists used one of the Perseverance’s high resolution cameras to capture another partial eclipse of the Sun by Phobos. This is not the first such Phobos eclipse that Perseverance has photographed (see for example here and here), but it is neat nonetheless.

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Water found on two main-belt asteroids?

9:44 am

Using data from the now-retired SOFIA airplane telescope, scientists think they have detected evidence of water molecules on Iris and Massalia, two well-known asteroids in the main asteroid belt.

“We detected a feature that is unambiguously attributed to molecular water on the asteroids Iris and Massalia,” Arredondo said. “We based our research on the success of the team that found molecular water on the sunlit surface of the Moon. We thought we could use SOFIA to find this spectral signature on other bodies.”

SOFIA detected water molecules in one of the largest craters in the Moon’s southern hemisphere. Previous observations of both the Moon and asteroids had detected some form of hydrogen but could not distinguish between water and its close chemical relative, hydroxyl. Scientists detected roughly equivalent to a 12-ounce bottle of water trapped in a cubic meter of soil spread across the lunar surface, chemically bound in minerals.

“Based on the band strength of the spectral features, the abundance of water on the asteroid is consistent with that of the sunlit Moon,” Arredondo said. “Similarly, on asteroids, water can also be bound to minerals as well as adsorbed to silicate and trapped or dissolved in silicate impact glass.”

You can read their paper here.

There remains uncertainty with this result, but there is also no reason for water not to be found on these main belt asteroids. They are far enough away from the Sun so that conditions are likely cold enough for that water to remain frozen or locked in the ground.

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Botswana bans Starlink

9:36 am

On February 2, 2024 regulators in Botswana rejected SpaceX’s application to sell Starlink terminals in that country, “citing the company’s failure to meet all requirements.”

In an email statement, BOCRA [Botswana Communications Regulatory Authority] emphasized that Starlink has not authorized any entity to import or resell its Internet kits in Botswana. Offenders will be committing an offence, although the specific charges remain undisclosed.

Notably, some Starlink kit owners, who claim to have purchased the devices for personal use, find themselves stranded at the Kazungula border in Zambia, facing restrictions on bringing the kits into Botswana. Options provided at the border include returning the device to Zambia or seeking permission from Botswana’s telco regulator, with no successful requests reported thus far.

The article is unclear as to what government requirements SpaceX has so far failed to meet. The article however does describe how many individuals have purchased Starlink terminals elsewhere and then brought them into countries where the service is not yet approved and used the company’s “roaming option in Africa” to make them work. SpaceX has been shutting down such terminals, but apparently it has not been entirely successful.

The bottom line here remains an issue of freedom versus government control. Africans very clearly want the service, and in fact the article describes at length the benefits it brings to poor rural areas. Freedom demands they should get it, as its use does no one harm and everyone good. All that stands in the way is government regulation and intransigence.

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Musk: 3rd Starship/Superheavy test launch expected in early March

9:27 am

According to a tweet on X by Elon Musk, the third test flight of SpaceX’s heavy-lift Starship/Superheavy rocket is now expected in about three weeks, in early March.

The rocket is presently on the launchpad, undergoing final tests.

This confirms my December prediction that the launch would not happen earlier than March. SpaceX was ready to launch in January, but as I predicted red tape in the federal government have left the rocket sitting on the ground.

However, that prediction may have been too optimistic. First, SpaceX has still not gotten its launch license from the FAA, with no word from that agency when it will rubber-stamp SpaceX’s investigation into the second test launch in November. Second, the lawsuit by activists challenging the right of local authorities to close beaches at Boca Chica for launches remains active. It is very possible those activists will be successful in getting the court to issue an injunction preventing any beach closures (and thus launches) while the case is being litigated. If so, the next test launch could be months away.

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The core and upper stages of the first Ariane-6 rocket are now on the way to French Guiana

9:17 am

After almost a decade of development and delays of more than four years, the core and upper stages of Europe’s Ariane-6 rocket are now on board ship and on the way to French Guiana for that rocket’s inaugural launch.

The Canopée ship left the port of Le Havre, in France, carrying the core and upper stages of the Ariane 6 launcher which will be used on the inaugural flight. Arrival at the port of Pariacabo in Kourou, French Guiana, from where it will be transferred to Europe’s Spaceport, is scheduled for the end of February.

Once in French Guiana, the two stages will be assembled vertically and once on the launchpad, will then have attached two solid-fueled strap-on boosters. The launch window is presently from June 15th to July 31st.

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