Tag: engineering
ExoMars2020 passes new parachute tests
Revisions to Europe’s ExoMars2020 parachutes have successfully passed tests at JPL in California.
Working with Nasa, ESA made modifications to the way the parachutes are released from the bag, which avoids creating so much friction. Using a special rig at JPL, the parachutes have now been tested up to their expected extraction speed of just over 200km/h with no sign of damage. Further confirmatory tests will now take place.
Time remains very short however. The launch window for ExoMars2020 is this coming summer.
Revisions to Europe’s ExoMars2020 parachutes have successfully passed tests at JPL in California.
Working with Nasa, ESA made modifications to the way the parachutes are released from the bag, which avoids creating so much friction. Using a special rig at JPL, the parachutes have now been tested up to their expected extraction speed of just over 200km/h with no sign of damage. Further confirmatory tests will now take place.
Time remains very short however. The launch window for ExoMars2020 is this coming summer.
Rockot launches three communications satellites
The last Russian Rockot this morning successfully placed three communications satellites and a cubesat into orbit.
The Russians are abandoning Rockot, a repurposed ballistic missile, because it uses Ukrainian hardware.
The leaders in the 2019 launch race:
32 China
22 Russia
13 SpaceX
8 Arianespace (Europe)
China still leads the U.S. 32 to 27 in the national rankings. At this moment no other launches are scheduled for 2019, though an unannounced military launch could still happen.
The last Russian Rockot this morning successfully placed three communications satellites and a cubesat into orbit.
The Russians are abandoning Rockot, a repurposed ballistic missile, because it uses Ukrainian hardware.
The leaders in the 2019 launch race:
32 China
22 Russia
13 SpaceX
8 Arianespace (Europe)
China still leads the U.S. 32 to 27 in the national rankings. At this moment no other launches are scheduled for 2019, though an unannounced military launch could still happen.
A minor eruption on the Sun
How about another cool image, this time a movie taken by Solar Dynamics Orbiter (SDO) back in August 13, 2018 of what they call a minor eruption on the surface of the Sun.
Because the movie is a somewhat large file, I have embedded it below the fold. Or you could go here to see a higher resolution version. This is the description by the SDO science team:
This close-up of the Sun from a two-hour period on Aug 13, 2018 shows a minor eruption of charged particles rising up and twisting about before falling back into the Sun. Imaged in extreme ultraviolet light, these kinds of events are difficult to see except when they occur along the sun’s edge, also known as the limb. At its peak the plasma rises several times the diameter of Earth. [emphasis mine]
How about another cool image, this time a movie taken by Solar Dynamics Orbiter (SDO) back in August 13, 2018 of what they call a minor eruption on the surface of the Sun.
Because the movie is a somewhat large file, I have embedded it below the fold. Or you could go here to see a higher resolution version. This is the description by the SDO science team:
This close-up of the Sun from a two-hour period on Aug 13, 2018 shows a minor eruption of charged particles rising up and twisting about before falling back into the Sun. Imaged in extreme ultraviolet light, these kinds of events are difficult to see except when they occur along the sun’s edge, also known as the limb. At its peak the plasma rises several times the diameter of Earth. [emphasis mine]
Giant scallops on Mars
Click for full image.
It’s a slow news week, with the too much partying only real space news today the expected third launch of China’s Long March 5 rocket (supposedly scheduled for this morning but so far no word). (To my gentle reader: For some reason I have been losing a day during this whole week, always thinking that Christmas was on Thursday and that today was Friday. Thus my error in thinking the Long March 5 flight was today. It is tomorrow morning. Forgive me for my absent-mindedness.) So let’s look at a cool image!
The photo on the right, cropped and reduced to post here, was taken my the high resolution camera on Mars Reconnaissance Orbiter (MRO) on October 8, 2019. Entitled “Scalloped Depressions in Utopia Planitia,” it shows a strangely eroded surface in the northern lowlands of Mars, where an intermittent ocean might have once existed.
The location of these scallops is shown to the right.
I have taken the same overview map used from two recent cool image posts, showing how these scallops relate in location to the strange crater in Utopia Planitia as well as the glacial-surrounded mesa in Protonilus Mensae.
In caves, scallops like this form from water or wind flow, but when they do, they are all oriented the same way. Here the scallops are at different orientations, terracing down from the center of the image. In this case it appears that scientists believe [pdf] the formation process is related to the sublimation of underground ice at this location.
According to [one hypothesis] scallop formation should be ongoing at the present time. Sublimation of interstitial ice could induce a collapse of material, initially as a small pit, then growing southward because of greater solar heating on the southern side. Nearby scallops would coalesce together as can be seen to have occurred.
What is most cool is that the geologists think the process that forms these scallops is related to the same processes that cause the formation of the swiss cheese landforms in the south polar regions.
Click for full image.
It’s a slow news week, with the too much partying only real space news today the expected third launch of China’s Long March 5 rocket (supposedly scheduled for this morning but so far no word). (To my gentle reader: For some reason I have been losing a day during this whole week, always thinking that Christmas was on Thursday and that today was Friday. Thus my error in thinking the Long March 5 flight was today. It is tomorrow morning. Forgive me for my absent-mindedness.) So let’s look at a cool image!
The photo on the right, cropped and reduced to post here, was taken my the high resolution camera on Mars Reconnaissance Orbiter (MRO) on October 8, 2019. Entitled “Scalloped Depressions in Utopia Planitia,” it shows a strangely eroded surface in the northern lowlands of Mars, where an intermittent ocean might have once existed.
The location of these scallops is shown to the right.
I have taken the same overview map used from two recent cool image posts, showing how these scallops relate in location to the strange crater in Utopia Planitia as well as the glacial-surrounded mesa in Protonilus Mensae.
In caves, scallops like this form from water or wind flow, but when they do, they are all oriented the same way. Here the scallops are at different orientations, terracing down from the center of the image. In this case it appears that scientists believe [pdf] the formation process is related to the sublimation of underground ice at this location.
According to [one hypothesis] scallop formation should be ongoing at the present time. Sublimation of interstitial ice could induce a collapse of material, initially as a small pit, then growing southward because of greater solar heating on the southern side. Nearby scallops would coalesce together as can be seen to have occurred.
What is most cool is that the geologists think the process that forms these scallops is related to the same processes that cause the formation of the swiss cheese landforms in the south polar regions.
Crater in the Martian northern lowlands
Click for original full image.
Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) on October 26, 2019. It shows a crater in the western edge of Utopia Planitia, the largest and deepest region of the Martian northern lowlands where it is theorized that an intermittent ocean might have once existed.
My first uneducated guess at looking at this image is that the impact occurred in some sort of wet slushy mud or ice, which then melted and filled the crater interior, ponding in the crater’s center as it froze.
A more educated guess, based on what I have learned in the past year, is not much different. The crater is located at 40 degrees north latitude and therefore sits in the middle of the mid-latitude band where scientists think there are a lot of buried inactive glaciers.
The map to the right, revised from my December 20, 2019 post about glaciers flowing off the slopes of a mid-latitude mesa, illustrates this even more clearly.
This crater, indicated by the white cross, sits at approximately the same latitude as that mesa and its glaciers in Protonilus Mensae. It also sits at in an area where accumulated data from several spacecraft have mapped a lot of water ice, close to the surface.
Thus, it is reasonable to suppose that the impact that made this crater pushed into that ice-table, melting the water which subsequently froze and then subsided downward into the ground to form the crater’s central ponded features.
Or to put it as I did initially, the impact smashed into some wet slushy mud/ice, melting it so that it filled the crater interior to then freeze as we see it.
Click for original full image.
Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) on October 26, 2019. It shows a crater in the western edge of Utopia Planitia, the largest and deepest region of the Martian northern lowlands where it is theorized that an intermittent ocean might have once existed.
My first uneducated guess at looking at this image is that the impact occurred in some sort of wet slushy mud or ice, which then melted and filled the crater interior, ponding in the crater’s center as it froze.
A more educated guess, based on what I have learned in the past year, is not much different. The crater is located at 40 degrees north latitude and therefore sits in the middle of the mid-latitude band where scientists think there are a lot of buried inactive glaciers.
The map to the right, revised from my December 20, 2019 post about glaciers flowing off the slopes of a mid-latitude mesa, illustrates this even more clearly.
This crater, indicated by the white cross, sits at approximately the same latitude as that mesa and its glaciers in Protonilus Mensae. It also sits at in an area where accumulated data from several spacecraft have mapped a lot of water ice, close to the surface.
Thus, it is reasonable to suppose that the impact that made this crater pushed into that ice-table, melting the water which subsequently froze and then subsided downward into the ground to form the crater’s central ponded features.
Or to put it as I did initially, the impact smashed into some wet slushy mud/ice, melting it so that it filled the crater interior to then freeze as we see it.
SpaceX completes new round of crew Dragon parachute tests
Capitalism in space: SpaceX this week completed a new round of crew Dragon parachute tests, meeting a goal they had announced in October.
This clearly paves the way for the January 11th launch abort test, followed by the first manned flight, as soon as February or March 2020, according to the article at the link.
Capitalism in space: SpaceX this week completed a new round of crew Dragon parachute tests, meeting a goal they had announced in October.
This clearly paves the way for the January 11th launch abort test, followed by the first manned flight, as soon as February or March 2020, according to the article at the link.
Russia’s Proton launches weather satellite
Russia today used the Proton-M version of their Proton rocket to place a geosynchronous weather satellite into orbit.
The leaders in the 2019 launch race:
31 China
21 Russia
13 SpaceX
8 Arianespace (Europe)
China still leads the U.S. 31 to 27 in the national rankings.
Right now there are only two more launches scheduled for 2019, a Russian Rockot launch and China’s third launch of its big Long March 5 rocket. Look for my global launch report for 2019 soon after the New Year.
Russia today used the Proton-M version of their Proton rocket to place a geosynchronous weather satellite into orbit.
The leaders in the 2019 launch race:
31 China
21 Russia
13 SpaceX
8 Arianespace (Europe)
China still leads the U.S. 31 to 27 in the national rankings.
Right now there are only two more launches scheduled for 2019, a Russian Rockot launch and China’s third launch of its big Long March 5 rocket. Look for my global launch report for 2019 soon after the New Year.
A deep dive into Valles Marineris
Click for full image.
The vastness of Mars is sometimes hard to fathom. While the planet is much smaller than Earth, its entire global surface is approximately the same as the Earth’s land area. This is a lot of territory. It took humanity many tens of thousands of centuries to expand outward to settle all of it. It took even longer before humanity was successfully able to map all of the Earth so that its entire surface was known to all humans, a task that was only completed a handful of centuries ago.
While we now have the technology to quickly map the entire globe of a planet like Mars, the devil is always in the details. At this time the resolution of our global maps give us only a glimpse of the Martian surface.
The image to the right, reduced and cropped to post here, is a good example. Taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) on October 30, 2019, it shows a set of large dunes on the northern floor of a side canyon on Mars that is part of Coprates Chasma, a canyon that forms only a small part of the vast Valles Marineris canyon system east of the giant volcanoes of the Tharsis Bulge.
The sand of these dunes is mostly volcanic material, dark basalt that was deposited as lava from those giant volcanoes, then later ground down in landslides and erosion to be recycled as sand that formed dunes trapped within the canyon bottom. The dunes themselves are slowly moving eastward, driven mostly by the predominate west-to-east winds that blow down this side canyon of Coprates Chasma. The motion is very slow, so slow that even though the image title is “Coprates Chasma Dune Changes”, I was unable to spot any changes when I compared this 2019 image with a photo taken in June 2019.
To find out what had changed, I contacted Matt Chojnacki of the Lunar and Planetary Laboratory at the University of Arizona, who has been studying the nature of the sand dunes in Valles Marineris. After making a quick preliminary blink test using more sophisticate tools than I have available, he found “minor advancements. The rocks move a bit too in places.” Without a full analysis he also added, “I can tell some dune crests have moved to the east.”
The research by Chojnacki and others has found that the dunes within Valles Marineris are in many ways different than dunes found elsewhere in the mid-latitudes on Mars, suggesting that being trapped within this giant canyon has produced some specific regional features. They tend to be darker, the canyon contains several sand dune seas, called ergs (only seen elsewhere on Mars in the polar regions), and the dunes tend to be more hardened, so that they change relatively little when compared to similar dunes elsewhere on Mars.
These particular dunes in Coprates Chasma however are not hardened, since if so they would have been covered by the landslides and material that comes down from the canyon’s nearby northern slopes. Instead, they move, but appear to move far slower than similar dunes elsewhere on Mars.
To me, this image provides a good vehicle for getting a sense of the size of Valles Marineris. Coprates Chasma itself only one of about a dozen named sections of the entire Valles Marineris canyon system, and this particular image shows only the floor of a side canyon of Coprates. The map below gives an overview of the entire system.
» Read more
The Navy’s horrible software and the crashes it caused
Apropos to Starliner: This article outlines in detail the causes behind the crash in 2017 of the USS McCain and an oil-tanker that killed ten sailors and injured many others.
It is a horror story of a bankrupt Navy upper management that seemed more in love with cool computer software and automation than making sure the Navy’s ships and its crews can function efficiently and effectively in any situation. Moreover, the story suggests that this same upper management made lower level officers the scapegoats for its bad decisions, while skating free with no consequences.
And worst of all, that same overly complex computer navigation system remains in place, with only superficial patches imposed in both its software and its user instructions.
This story however is hardly unique. It reflects the general and systemic failures of almost any project coming out of the upper managements of the entire federal government for the past three decades, a pattern of failure that partly explains why Donald Trump was elected, and why he is hated so thoroughly by so many in that federal workforce. He more than anyone in decades has been demanding from them quality work, and firing them when they fail to provide it.
It seems, based on this story, that Trump needs to make a harsh review of the Navy’s upper management as well.
Apropos to Starliner: This article outlines in detail the causes behind the crash in 2017 of the USS McCain and an oil-tanker that killed ten sailors and injured many others.
It is a horror story of a bankrupt Navy upper management that seemed more in love with cool computer software and automation than making sure the Navy’s ships and its crews can function efficiently and effectively in any situation. Moreover, the story suggests that this same upper management made lower level officers the scapegoats for its bad decisions, while skating free with no consequences.
And worst of all, that same overly complex computer navigation system remains in place, with only superficial patches imposed in both its software and its user instructions.
This story however is hardly unique. It reflects the general and systemic failures of almost any project coming out of the upper managements of the entire federal government for the past three decades, a pattern of failure that partly explains why Donald Trump was elected, and why he is hated so thoroughly by so many in that federal workforce. He more than anyone in decades has been demanding from them quality work, and firing them when they fail to provide it.
It seems, based on this story, that Trump needs to make a harsh review of the Navy’s upper management as well.
Boeing fires CEO
Boeing today fired its CEO Dennis Muilenburg, citing the need to “restore confidence in the company.”
The company has had a very bad year, with the grounding of its 737-Max airplane, the cost overruns and delays in its NASA Space Launch System (SLS) rocket, and the failure of its Starliner manned capsule to dock with ISS this past weekend.
Whether this change will accomplish anything is hard to say. The problems above appear very deeply embedded within the company’s culture, and might require the kind of wholesale changes that big bloated corporations like Boeing are generally loath to impose.
Boeing today fired its CEO Dennis Muilenburg, citing the need to “restore confidence in the company.”
The company has had a very bad year, with the grounding of its 737-Max airplane, the cost overruns and delays in its NASA Space Launch System (SLS) rocket, and the failure of its Starliner manned capsule to dock with ISS this past weekend.
Whether this change will accomplish anything is hard to say. The problems above appear very deeply embedded within the company’s culture, and might require the kind of wholesale changes that big bloated corporations like Boeing are generally loath to impose.
Movie of Jupiter’s south pole storms
Cool image time! Citizen scientist Gerald Eichstädt has used images taken by Juno of Jupiter’s south polar storms to produce an animation that shows the evolution of those storms over a short time period.
The movie is more a computer model than an assemblage of images.
A fluid dynamical 2D model rotating with Jupiter’s System III rotation rate is started with a map of PJ19 (Juno’s 19th close approach) vorticity measurements of the south polar region between 75 and 90 degrees south (azimuthal, equidistant, planetocentric) as initial condition. The vorticity map is based on a sequence of PJ19 JunoCam images.
Relative vorticities are encoded in color, blue for cyclonic, orange for anticyclonic relative vorticity. The animated gif covers 48 hours, with one frame per real-time hour. Played with 25 fps, the result is a 90,000-fold time-lapsed animation.
I have embedded the animation below the fold. It is quite impressive.
» Read more
Cool image time! Citizen scientist Gerald Eichstädt has used images taken by Juno of Jupiter’s south polar storms to produce an animation that shows the evolution of those storms over a short time period.
The movie is more a computer model than an assemblage of images.
A fluid dynamical 2D model rotating with Jupiter’s System III rotation rate is started with a map of PJ19 (Juno’s 19th close approach) vorticity measurements of the south polar region between 75 and 90 degrees south (azimuthal, equidistant, planetocentric) as initial condition. The vorticity map is based on a sequence of PJ19 JunoCam images.
Relative vorticities are encoded in color, blue for cyclonic, orange for anticyclonic relative vorticity. The animated gif covers 48 hours, with one frame per real-time hour. Played with 25 fps, the result is a 90,000-fold time-lapsed animation.
I have embedded the animation below the fold. It is quite impressive.
» Read more
India aims for about a dozen launches in 2020
The new colonial movement: India’s space agency ISRO is targeting about about a dozen launches in 2020, including the first unmanned test flight of its manned capsule Gaganyaan, the first flight of its smallsat SSLV rocket, and the first test flights of a reusable rocket, the first stage landing vertically and the second stage returning like a space shuttle.
Of these I estimate about seven are orbital flights.
Based on the last few years, this prediction by ISRO is likely high. They tend to over-predict what they will accomplish each year. This isn’t necessarily bad, as it forces them to accelerate their work rather than allowing it to drag on endlessly.
The new colonial movement: India’s space agency ISRO is targeting about about a dozen launches in 2020, including the first unmanned test flight of its manned capsule Gaganyaan, the first flight of its smallsat SSLV rocket, and the first test flights of a reusable rocket, the first stage landing vertically and the second stage returning like a space shuttle.
Of these I estimate about seven are orbital flights.
Based on the last few years, this prediction by ISRO is likely high. They tend to over-predict what they will accomplish each year. This isn’t necessarily bad, as it forces them to accelerate their work rather than allowing it to drag on endlessly.
Starliner lands safely after failed orbital insertion
Capitalism in space:Boeing’s Starliner capsule successfully landed today in New Mexico, returning to Earth prematurely because of its failure to reach its proper orbit after launch two days ago.
The article quotes extensively from both NASA and Boeing officials touting the many successful achievements of this flight, while trying to minimize the failure that prevented the capsule from docking with ISS properly. And that failure?
The mission elapsed timer issue that cut short Starliner’s planned eight-day mission started before the spacecraft lifted off Friday from Cape Canaveral aboard a United Launch Alliance Atlas 5 rocket, according to Chilton. “Our spacecraft needs to reach down into the Atlas 5 and figure out what time it is, where the Atlas 5 is in its mission profile, and then we set the clock based on that,” Chilton said in a press conference Saturday. “Somehow we reached in there and grabbed the wrong (number). This doesn’t look like an Atlas problem. This looks like we reached in and grabbed the wrong coefficient.”
“As a result of starting the clock at the wrong time, the spacecraft upon reaching space, she thought she was later in the mission, and, being autonomous, started to behave that way,” Chilton said. “And so it wasn’t in the orbit we expected without the burn and it wasn’t in the attitude expected and was, in fact, adjusting that attitude.”
I read this and find myself appalled. While I agree that overall the mission proved the capsule capable of launching humans to ISS (which is why NASA is considering making the next Starliner mission manned despite this failure), this failure suggests a worrisome lack of quality control at Boeing. I can’t even imagine how the Starliner software could be mis-configured to “grab the wrong number.” This explanation makes no sense, and suggests they are spinning the failure to avoid telling us what they really did wrong.
Either way, I suspect that NASA will approve a manned launch for Starliner’s next orbital flight, but will do so only after dwelling on the problem for at least six months.
Capitalism in space:Boeing’s Starliner capsule successfully landed today in New Mexico, returning to Earth prematurely because of its failure to reach its proper orbit after launch two days ago.
The article quotes extensively from both NASA and Boeing officials touting the many successful achievements of this flight, while trying to minimize the failure that prevented the capsule from docking with ISS properly. And that failure?
The mission elapsed timer issue that cut short Starliner’s planned eight-day mission started before the spacecraft lifted off Friday from Cape Canaveral aboard a United Launch Alliance Atlas 5 rocket, according to Chilton. “Our spacecraft needs to reach down into the Atlas 5 and figure out what time it is, where the Atlas 5 is in its mission profile, and then we set the clock based on that,” Chilton said in a press conference Saturday. “Somehow we reached in there and grabbed the wrong (number). This doesn’t look like an Atlas problem. This looks like we reached in and grabbed the wrong coefficient.”
“As a result of starting the clock at the wrong time, the spacecraft upon reaching space, she thought she was later in the mission, and, being autonomous, started to behave that way,” Chilton said. “And so it wasn’t in the orbit we expected without the burn and it wasn’t in the attitude expected and was, in fact, adjusting that attitude.”
I read this and find myself appalled. While I agree that overall the mission proved the capsule capable of launching humans to ISS (which is why NASA is considering making the next Starliner mission manned despite this failure), this failure suggests a worrisome lack of quality control at Boeing. I can’t even imagine how the Starliner software could be mis-configured to “grab the wrong number.” This explanation makes no sense, and suggests they are spinning the failure to avoid telling us what they really did wrong.
Either way, I suspect that NASA will approve a manned launch for Starliner’s next orbital flight, but will do so only after dwelling on the problem for at least six months.
Buried glaciers flowing off of Martian mesa
Click for full image.
Cool image time! Planetary geologists now think that the mid-latitudes of Mars contain many buried and inactive glaciers, formed several million years ago when the planet’s inclination was more than 50 degrees [pdf], rather than the 25 degrees it is now. At that time the mid-latitudes were actually colder than the poles, and water would sublimate from the poles to the colder mid-latitudes to pile up as snow and glaciers.
With today’s 25 degree inclination those mid-latitude glaciers are inactive, and have been so for several million years. It might even be that Mars’ water is beginning a shift back to the poles, but this is uncertain. If anything the planet is presently in a balance, and won’t start transferring water back to the poles until its inclination drops closer to zero.
The image to the right, taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) on September 23, 2019, is of one of those glacial flows, coming off a mesa in a region called Protonilus Mensae, located in the transition zone between the southern highlands and the northern lowland plains where an intermittent ocean might have once existed.
Much of the geology of Protonilus Mensae is chaos terrain, places where the surface has eroded along angled fissures to form many mesas. The overview map below focuses in on the particular mesa where this flow is located. The red boxes indicate all the MRO images taken of this mesa, with the image above indicated by the black dot.
» Read more
Click for full image.
Cool image time! Planetary geologists now think that the mid-latitudes of Mars contain many buried and inactive glaciers, formed several million years ago when the planet’s inclination was more than 50 degrees [pdf], rather than the 25 degrees it is now. At that time the mid-latitudes were actually colder than the poles, and water would sublimate from the poles to the colder mid-latitudes to pile up as snow and glaciers.
With today’s 25 degree inclination those mid-latitude glaciers are inactive, and have been so for several million years. It might even be that Mars’ water is beginning a shift back to the poles, but this is uncertain. If anything the planet is presently in a balance, and won’t start transferring water back to the poles until its inclination drops closer to zero.
The image to the right, taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) on September 23, 2019, is of one of those glacial flows, coming off a mesa in a region called Protonilus Mensae, located in the transition zone between the southern highlands and the northern lowland plains where an intermittent ocean might have once existed.
Much of the geology of Protonilus Mensae is chaos terrain, places where the surface has eroded along angled fissures to form many mesas. The overview map below focuses in on the particular mesa where this flow is located. The red boxes indicate all the MRO images taken of this mesa, with the image above indicated by the black dot.
» Read more
Long March 4B launches a China/Brazil Landsat-type satellite
China’s Long March 4B rocket this morning successfully launched a China/Brazil Landsat-type satellite into a sun-synchronous orbit.
The rocket also placed an additional 8 cubesats into orbit as well.
The leaders in the 2019 launch race:
31 China
20 Russia
13 SpaceX
8 Arianespace (Europe)
China now leads the U.S. 31 to 27 in the national rankings.
China’s Long March 4B rocket this morning successfully launched a China/Brazil Landsat-type satellite into a sun-synchronous orbit.
The rocket also placed an additional 8 cubesats into orbit as well.
The leaders in the 2019 launch race:
31 China
20 Russia
13 SpaceX
8 Arianespace (Europe)
China now leads the U.S. 31 to 27 in the national rankings.
Starliner launch fails, spacecraft to return to Earth
After being successfully placed in a preliminary orbit by ULA’s Atlas 5 rocket early this morning, Boeing’s Starliner capsule failed to reach its required orbit for docking with ISS when its own rocket engines did not fire properly at the right time.
The orbit it is in is stable, and the spacecraft is undamaged. Engineers now plan to bring it back to Earth on Sunday, landing at White Sands, New Mexico.
It appears some software issue had the capsule fire its own rockets either at the wrong time or for too short a time. The spacecraft was then in the wrong orbit, and needed to use too much fuel to correct this issue, making it impossible to dock with ISS.
More information here:
However, for reasons Boeing engineers do not yet understand, Starliner’s Mission Event Timer clock malfunctioned, causing the vehicle to think it was at a different point in the mission and at a different time in its mission that it actually was.
…This resulted in Starliner’s Reaction Control System thinking the Orbit Insertion Burn was underway and executing a series of burns to keep the vehicle oriented in the insertion burn attitude; however, the Orbit Insertion Burn was not actually occurring.
When mission controllers realized the issue, they sent manual commands to Starliner to perform an Orbit Insertion Burn in a backup window that came roughly eight minutes after the planned maneuver. However, a known and brief gap in NASA satellite communications caused a further delay.
By the time Starliner was finally able to burn its engines and get into a stable orbit, it had burned 25% more propellant than anticipated.
Boeing is certainly not having a good year. First it has had to shut down production on its new 737-Max airplane due to several crashes caused by software issues. Next its SLS rocket for NASA has had endless cost overruns and delays. Now Starliner fails during its first launch.
For ULA, however, the Atlas 5 rocket performed exactly as planned, so this launch gets listed as a success. They have now completed 5 launches this year.
After being successfully placed in a preliminary orbit by ULA’s Atlas 5 rocket early this morning, Boeing’s Starliner capsule failed to reach its required orbit for docking with ISS when its own rocket engines did not fire properly at the right time.
The orbit it is in is stable, and the spacecraft is undamaged. Engineers now plan to bring it back to Earth on Sunday, landing at White Sands, New Mexico.
It appears some software issue had the capsule fire its own rockets either at the wrong time or for too short a time. The spacecraft was then in the wrong orbit, and needed to use too much fuel to correct this issue, making it impossible to dock with ISS.
More information here:
However, for reasons Boeing engineers do not yet understand, Starliner’s Mission Event Timer clock malfunctioned, causing the vehicle to think it was at a different point in the mission and at a different time in its mission that it actually was.
…This resulted in Starliner’s Reaction Control System thinking the Orbit Insertion Burn was underway and executing a series of burns to keep the vehicle oriented in the insertion burn attitude; however, the Orbit Insertion Burn was not actually occurring.
When mission controllers realized the issue, they sent manual commands to Starliner to perform an Orbit Insertion Burn in a backup window that came roughly eight minutes after the planned maneuver. However, a known and brief gap in NASA satellite communications caused a further delay.
By the time Starliner was finally able to burn its engines and get into a stable orbit, it had burned 25% more propellant than anticipated.
Boeing is certainly not having a good year. First it has had to shut down production on its new 737-Max airplane due to several crashes caused by software issues. Next its SLS rocket for NASA has had endless cost overruns and delays. Now Starliner fails during its first launch.
For ULA, however, the Atlas 5 rocket performed exactly as planned, so this launch gets listed as a success. They have now completed 5 launches this year.
Why Are 96,000,000 Black Balls on This Reservoir?
Megadunes in the giant canyon of Mars’ north polar icecap
Click for full image.
Cool image time! The photo to the right, cropped and reduced to post here, was taken by the high resolution camera of Mars Reconnaissance Orbiter (MRO) on September 15, 2019, right at the beginning of summer at the north polar icecap of Mars.
Without a larger context it is very difficult to figure out what this image shows. The image title, “Seasonal Changes of Chasma Boreale Megadunes,” gives us some basic clues. The streaks of black and dark grey are giant dunes, with this image showing their trailing edge. The darkest streaks are likely places where the thin winter mantle of dry ice has begun to sublimate away with the coming of spring, exposing the darker sand dunes below. The surrounding flat white areas are either the permanent water ice of the icecap or the surface of the lowland northern plains that surround that icecap.
The montage below shows a series of monitoring photos, beginning in 2018 during the last Martian summer and continuing through the start and middle of the spring and ending with the photo above. It shows the seasonal evolution of that upper carbon dioxide dry ice mantle, which reveals the darker dunes below as that dry ice mantle sublimates away.
» Read more
Click for full image.
Cool image time! The photo to the right, cropped and reduced to post here, was taken by the high resolution camera of Mars Reconnaissance Orbiter (MRO) on September 15, 2019, right at the beginning of summer at the north polar icecap of Mars.
Without a larger context it is very difficult to figure out what this image shows. The image title, “Seasonal Changes of Chasma Boreale Megadunes,” gives us some basic clues. The streaks of black and dark grey are giant dunes, with this image showing their trailing edge. The darkest streaks are likely places where the thin winter mantle of dry ice has begun to sublimate away with the coming of spring, exposing the darker sand dunes below. The surrounding flat white areas are either the permanent water ice of the icecap or the surface of the lowland northern plains that surround that icecap.
The montage below shows a series of monitoring photos, beginning in 2018 during the last Martian summer and continuing through the start and middle of the spring and ending with the photo above. It shows the seasonal evolution of that upper carbon dioxide dry ice mantle, which reveals the darker dunes below as that dry ice mantle sublimates away.
» Read more
Yutu-2 sets new longevity record for lunar rover
China’s Yutu-2 lunar rover has now set a new longevity record for any rover on the Moon, beating the 10.5 month record set by the Soviet Union’s Lunokhod 1 rover in 1970-1971.
Lunokhod 1 traveled about 6.5 miles, or about 34,000 feet, during its operation. Chinese engineers have been more cautious, moving Yutu-2 only about 1,132 feet in the same time period.
The Chinese rover is still operating, though relatively little data has been released from it. At the moment it has been placed in its hibernation mode as it makes it through its twelfth lunar night.
China’s Yutu-2 lunar rover has now set a new longevity record for any rover on the Moon, beating the 10.5 month record set by the Soviet Union’s Lunokhod 1 rover in 1970-1971.
Lunokhod 1 traveled about 6.5 miles, or about 34,000 feet, during its operation. Chinese engineers have been more cautious, moving Yutu-2 only about 1,132 feet in the same time period.
The Chinese rover is still operating, though relatively little data has been released from it. At the moment it has been placed in its hibernation mode as it makes it through its twelfth lunar night.
Mars 2020 rover takes first and last test drive
Engineers on December 17 gave the Mars 2020 rover its first and last test drive before it is launched in July 2020.
In a 10-plus-hour marathon on Tuesday that demonstrated all the systems working in concert, the rover steered, turned and drove in 3-foot (1-meter) increments over small ramps covered with special static-control mats. Since these systems performed well under Earth’s gravity, engineers expect them to perform well under Mars’ gravity, which is only three-eighths as strong. The rover was also able to gather data with the Radar Imager for Mars’ Subsurface Experiment (RIMFAX).
I have embedded a short video showing a tiny part of that driving test below the fold. This is the last and only time we will ever be able to see the rover move. Once it is on Mars in Jezero Crater there will be no third party cameras to record its travels.
» Read more
Engineers on December 17 gave the Mars 2020 rover its first and last test drive before it is launched in July 2020.
In a 10-plus-hour marathon on Tuesday that demonstrated all the systems working in concert, the rover steered, turned and drove in 3-foot (1-meter) increments over small ramps covered with special static-control mats. Since these systems performed well under Earth’s gravity, engineers expect them to perform well under Mars’ gravity, which is only three-eighths as strong. The rover was also able to gather data with the Radar Imager for Mars’ Subsurface Experiment (RIMFAX).
I have embedded a short video showing a tiny part of that driving test below the fold. This is the last and only time we will ever be able to see the rover move. Once it is on Mars in Jezero Crater there will be no third party cameras to record its travels.
» Read more
SpaceX delays launch abort until January 11
Capitalism in space: SpaceX and NASA announced yesterday that they have delayed the launch abort test flight of crew Dragon one week, to January 11th.
The press release provides no explanation for the one week delay.
Capitalism in space: SpaceX and NASA announced yesterday that they have delayed the launch abort test flight of crew Dragon one week, to January 11th.
The press release provides no explanation for the one week delay.
Rocket Lab begins construction on 2nd New Zealand launchpad
Capitalism in space: Rocket Lab has begun construction on a second launchpad at its New Zealand spaceport.
The new pad, known as Launch Complex 1 Pad B, is due for completion in late 2020. Rocket Lab says LC-1B will support increased launch frequency; enable back-to-back missions within days; and ensure that a pad is always ready to support rapid call-up launch. The existing pad at New Zealand’s Launch Complex 1 will be LC-1A.
This new pad will give Rocket Lab three launchpads total, two in New Zealand and one in Virginia, and when all are operational the company says it will be able to launch more than 130 times per year. That’s more launches than the entire world routinely launches.
Capitalism in space: Rocket Lab has begun construction on a second launchpad at its New Zealand spaceport.
The new pad, known as Launch Complex 1 Pad B, is due for completion in late 2020. Rocket Lab says LC-1B will support increased launch frequency; enable back-to-back missions within days; and ensure that a pad is always ready to support rapid call-up launch. The existing pad at New Zealand’s Launch Complex 1 will be LC-1A.
This new pad will give Rocket Lab three launchpads total, two in New Zealand and one in Virginia, and when all are operational the company says it will be able to launch more than 130 times per year. That’s more launches than the entire world routinely launches.
Starliner launch set for Friday, December 20
Capitalism in space: The first orbital flight of Boeing’s Starliner capsule, remains on target for launch this coming Friday, December 20, 2019.
The launch is presently set for 6:36 am (Eastern), with a docking at ISS early the next day.
NASA will be broadcasting the launch and docking.
Capitalism in space: The first orbital flight of Boeing’s Starliner capsule, remains on target for launch this coming Friday, December 20, 2019.
The launch is presently set for 6:36 am (Eastern), with a docking at ISS early the next day.
NASA will be broadcasting the launch and docking.
Original investors sue Firefly
Capitalism in space: The original investors in Firefly Aerospace, cut out when the company went bankrupt, have filed suit against the reborn company.
A group of original shareholders in the defunct Firefly Space Systems have accused co-founder and CEO Tom Markusic of fraudulently conspiring with Ukrainian billionaire Maxym Polyakov to force the rocket company into bankruptcy in 2017 and reconstitute it under a nearly identical name without giving them any stake in the new venture.
Markusic “betrayed the trust of his original co-founders and investors and committed fraud to cut them out of his aerospace company. Instead of managing the operations of the Original Firefly, a revolutionary rocket company with endless potential, Markusic schemed with…Maxym Polyakov…to rob Plaintiffs of their investments and form a new company called Firefly Aerospace, Inc. (the ‘New Firefly’),” the plaintiffs said in a lawsuit.
The article at the link has a lot more information. Read it all.
This is also not the first time Markusic has been sued. He left Virgin Galactic to found Firefly, and was then sued by Branson’s company for stealing proprietary technology. That lawsuit was settled when Markusic agreed to not use that technology in Firefly’s rockets.
Capitalism in space: The original investors in Firefly Aerospace, cut out when the company went bankrupt, have filed suit against the reborn company.
A group of original shareholders in the defunct Firefly Space Systems have accused co-founder and CEO Tom Markusic of fraudulently conspiring with Ukrainian billionaire Maxym Polyakov to force the rocket company into bankruptcy in 2017 and reconstitute it under a nearly identical name without giving them any stake in the new venture.
Markusic “betrayed the trust of his original co-founders and investors and committed fraud to cut them out of his aerospace company. Instead of managing the operations of the Original Firefly, a revolutionary rocket company with endless potential, Markusic schemed with…Maxym Polyakov…to rob Plaintiffs of their investments and form a new company called Firefly Aerospace, Inc. (the ‘New Firefly’),” the plaintiffs said in a lawsuit.
The article at the link has a lot more information. Read it all.
This is also not the first time Markusic has been sued. He left Virgin Galactic to found Firefly, and was then sued by Branson’s company for stealing proprietary technology. That lawsuit was settled when Markusic agreed to not use that technology in Firefly’s rockets.
Soyuz rocket launches five satellites for Arianespace
A Russian Soyuz rocket, launching from French Guiana for Arianespace, successfully placed five satellites in orbit early this morning, including CHEOPS, a European space telescope designed to study exoplanets.
Though this was a Russian rocket, I count it as an Arianespace launch as that is the company under which the launch operates. I also realize this is open to debate.
The leaders in the 2019 launch race:
30 China
20 Russia
13 SpaceX
8 Arianespace (Europe)
China still leads the U.S. 30 to 26 in the national rankings.
A Russian Soyuz rocket, launching from French Guiana for Arianespace, successfully placed five satellites in orbit early this morning, including CHEOPS, a European space telescope designed to study exoplanets.
Though this was a Russian rocket, I count it as an Arianespace launch as that is the company under which the launch operates. I also realize this is open to debate.
The leaders in the 2019 launch race:
30 China
20 Russia
13 SpaceX
8 Arianespace (Europe)
China still leads the U.S. 30 to 26 in the national rankings.
Martian impacts and streaks
Click for full image.
In the most recent image download from the high resolution camera on Mars Reconnaissance Orbiter (MRO), there was the cool image to the right, reduced and cropped to post here, of a crater that appeared to have hundreds and hundreds of slope streaks along its inner slopes.
Slope streaks are quite mysterious. They are found in the equatorial regions as dark (though sometimes light) streaks on steep slopes, appearing throughout the year and slowly fading over time. They also appear to be a geological phenomenon unique to Mars. Nothing on Earth or any other planet appears to correspond.
As such, their nature and cause remains unknown, though there are a bunch of theories, with the most popular being that these are a kind of dust avalanche. They are always found in connection with dust-covered terrain, but they also make no significant topological change to the surface, other than brightness.
The slope streaks in this crater are especially intriguing, because of the number of streaks. In digging further into the MRO archive I found a number of images of this crater and its surrounding terrain. It appears that sometime before 2012 there was a relatively recent impact close to the exterior of the eastern rim of this crater. The image below, taken in 2014 by MRO, shows this impact as the large dark splotch, with the new crater indicated by the arrow..
» Read more
Click for full image.
In the most recent image download from the high resolution camera on Mars Reconnaissance Orbiter (MRO), there was the cool image to the right, reduced and cropped to post here, of a crater that appeared to have hundreds and hundreds of slope streaks along its inner slopes.
Slope streaks are quite mysterious. They are found in the equatorial regions as dark (though sometimes light) streaks on steep slopes, appearing throughout the year and slowly fading over time. They also appear to be a geological phenomenon unique to Mars. Nothing on Earth or any other planet appears to correspond.
As such, their nature and cause remains unknown, though there are a bunch of theories, with the most popular being that these are a kind of dust avalanche. They are always found in connection with dust-covered terrain, but they also make no significant topological change to the surface, other than brightness.
The slope streaks in this crater are especially intriguing, because of the number of streaks. In digging further into the MRO archive I found a number of images of this crater and its surrounding terrain. It appears that sometime before 2012 there was a relatively recent impact close to the exterior of the eastern rim of this crater. The image below, taken in 2014 by MRO, shows this impact as the large dark splotch, with the new crater indicated by the arrow..
» Read more
SpaceX successfully launches commercial satellite
Capitalism in space: Using a first stage for the third time, SpaceX today successfully launched a commercial communications satellite while recovering that first stage.
Fun fact: This first stage recovery today was the 47th time that SpaceX has successfully completed a vertical landing.
The leaders in the 2019 launch race:
30 China
20 Russia
13 SpaceX
7 Europe (Arianespace)
China now leads the U.S. in the national rankings 30 to 26.
Capitalism in space: Using a first stage for the third time, SpaceX today successfully launched a commercial communications satellite while recovering that first stage.
Fun fact: This first stage recovery today was the 47th time that SpaceX has successfully completed a vertical landing.
The leaders in the 2019 launch race:
30 China
20 Russia
13 SpaceX
7 Europe (Arianespace)
China now leads the U.S. in the national rankings 30 to 26.
Turkey buys machine gun toting drones
Our fascist future: Turkey has purchased shipment of an unspecified number of drones equipped with a machine gun capable of firing as many as 200 rounds.
Made by the country’s own Asisguard, the Songar drone can carry 200 rounds of 5.56 x 45 mm NATO class ammo, and can hit a 15-cm-square (6-inch-square) target from 200 m (650 ft) away with single shots, 15-bullet bursts or a full auto unloading.
The 25-kg (55-lb) drones use a four-armed carbon body design with two coaxially mounted large props on each arm. The automatic machine gun beneath rests in a tilting mount, allowing a remote operator to aim it using controls that would be familiar to anyone who’s used the camera on a DJI Phantom. It carries sufficient battery and powerful enough communications to fly 10 km (6.2 mi) on a mission, it’s GPS and GLONASS stabilized, and it offers twin camera operation for a pilot and gunner if required.
This is not the first or the most sophisticated killing drone ever built. Its simplicity however suggests that it is becoming very easy for governments and the power-hungry individuals who like to run them to obtain technology capable of killing their opposition, in a way that will be untraceable.
I have embedded below the fold a sales video produced by the company. If it doesn’t send chills up your spine you are very divorced from reality.
» Read more
Our fascist future: Turkey has purchased shipment of an unspecified number of drones equipped with a machine gun capable of firing as many as 200 rounds.
Made by the country’s own Asisguard, the Songar drone can carry 200 rounds of 5.56 x 45 mm NATO class ammo, and can hit a 15-cm-square (6-inch-square) target from 200 m (650 ft) away with single shots, 15-bullet bursts or a full auto unloading.
The 25-kg (55-lb) drones use a four-armed carbon body design with two coaxially mounted large props on each arm. The automatic machine gun beneath rests in a tilting mount, allowing a remote operator to aim it using controls that would be familiar to anyone who’s used the camera on a DJI Phantom. It carries sufficient battery and powerful enough communications to fly 10 km (6.2 mi) on a mission, it’s GPS and GLONASS stabilized, and it offers twin camera operation for a pilot and gunner if required.
This is not the first or the most sophisticated killing drone ever built. Its simplicity however suggests that it is becoming very easy for governments and the power-hungry individuals who like to run them to obtain technology capable of killing their opposition, in a way that will be untraceable.
I have embedded below the fold a sales video produced by the company. If it doesn’t send chills up your spine you are very divorced from reality.
» Read more
China launches two more Beidou GPS-type satellites
The new colonial movement: China today used its Long March 3B rocket to launch two more Beidou GPS-type satellites.
With this launch China has successfully matched its predicted number of launches for 2019, a number that it should exceed with several more launches scheduled before the end of the year.
The leaders in the 2019 launch race:
30 China
20 Russia
12 SpaceX
7 Europe (Arianespace)
China now leads the U.S. in the national rankings 30 to 25. These numbers should change later today, as SpaceX has a commercial launch scheduled.
The new colonial movement: China today used its Long March 3B rocket to launch two more Beidou GPS-type satellites.
With this launch China has successfully matched its predicted number of launches for 2019, a number that it should exceed with several more launches scheduled before the end of the year.
The leaders in the 2019 launch race:
30 China
20 Russia
12 SpaceX
7 Europe (Arianespace)
China now leads the U.S. in the national rankings 30 to 25. These numbers should change later today, as SpaceX has a commercial launch scheduled.