Tag: engineering

Mark Vande Hei sets new record for longest American space flight

10:03 am

Mark Vande Hei today set a new record for the longest American space flight, exceeding the 340 days flown by Scott Kelly on ISS in 2012-2013.

Since Vande Hei is scheduled to return to Earth on March 30th, his total record flight time should end up being 355 days, just short of a full year.

Vande Hei arrived at the space station aboard a Russian Soyuz spacecraft on April 9, 2021, knowing at the time that he would be there for at least for the five to six months that is typical today for expedition crew members. His mission was extended by NASA in September to allow for a Russian movie crew to visit the orbiting complex and, more importantly, protect against a crew rotation schedule that could leave the station without any Americans on board.

Vande Hei’s record will be the fifth longest, behind four other Russians on Mir. Musa Manarov and Vladimir Titov were the first to complete a year long flight in 1987-1988. Valery Polyakov holds the record for the longest flight, 437 days in 1994-1995. Sergei Avdeyev’s flight of 381 days on Mir in 1998-1999 is the second longest.

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Astra successfully completes its second orbital launch

9:44 am

Capitalism in space: After a February 10, 2022 launch failure, the rocket startup Astra today successfully completed its second orbital launch and first in 2022, putting its first commercial payloads into orbit.

Unfortunately the separation and deployment of a payload platform from the upper stage had not been confirmed as of this posting. While the payloads can still function attached to the upper stage (they are not fully functional satellites), if this deployment turns out to be a failure it will put a stain on the launch. Astra confirmed the successful deployment of the payloads about an hour after launch.

That the company could investigate a launch failure, fix the problem, and resume launches in just over a month however speaks well for its future. If the deployment failed fixing it should proceed as quickly. Meanwhile, the company announced yesterday a new multi-launch contract through 2025 with Spaceflight, which finds launches for smallsats and also provides a small tug to move them into their preferred orbit.launches.

The leaders in the 2022 launch race remain unchanged:

10 SpaceX
5 China
2 ULA
2 Russia

The U.S. now leads China 16 to 5 in the national rankings.

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Entire Russian communications satellite industry threatened by Russia’s Ukraine invasion

9:12 am

Because almost all Russian communications satellites rely on western components, the sanctions imposed on Russia due to its invasion of the Ukraine will likely prevent the future launch of any such satellites.

The overwhelmingly wide sanctions against the Kremlin left practically no chance for Russia to complete any of its communications satellites in the development pipeline at the time due to their dependency on Western payloads.

Conceivably, Russia could turn to China for necessary components or/and Moscow could try again developing necessary competencies inside the country, but given little signs of progress on both of those fronts in the past, it could probably take years if not decades before all the technological gaps could be closed and it would be even more difficult to do under much harsher economic conditions and export controls. It is also a question whether China would be interested in boosting strategically important industries in Russia with potential military implications or whether it would want to challenge the Western sanctions regime by putting at risk its far more important trade relations with the United States.

The article at the link also notes the generally low quality of Russian communications satellites, which for example generally last only five to six years, compared to the 10 to 15 year lifespan of western satellites. This low quality has meant that Russia has been unable to sell this technology to anyone outside Russia.

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Dumping Windows and Apple and switching to Linux

8:32 pm

My regular readers know about my utter contempt for Microsoft and its terrible Windows operating system. Any company that treats its customers like dirt, as Microsoft routinely does, does not deserve the business of anyone. I realized this reality two decades ago, and successfully switched to Linux back in 2006. I have never regretted it.

Moreover, the increasingly intolerant behavior of big tech companies like Microsoft to free speech increases the need for people to free themselves from them. The willingness of these companies to also treat your privacy and personal data as a plaything for their use, without your permission, is another rational reason to stop depending on them.

Linux accomplishes this, in that its open source software structure is really controlled by no one. There is also no software company using the operating system to gather your data for its own purposes.

In 2016, after seeing a number of my posts noting the advantages of Linux (or anything) over Windows, one of my readers, James Stephens, offered to write a series for Behind the Black describing step-by-step the process by which one gets and installs Linux on either a desktop or laptop computer. Below are the links to this series. I have since used it myself as a guide to convert two used Windows 7 notebooks (purchased for $35 and $80) to my favorite flavor of Linux, both of which I use regularly as my travel computers.

I wish more people would do the same, which is why I am reposting the links to this series again. Though six years have passed, James instructions still apply perfectly, as I can attest as I used this series to convert the second laptop only a year ago. Nonetheless, James has added an addendum to Part 2, which brings the entire series up to date.

I am sure almost everyone has an old computer they don’t use anymore. It will work like new with Linux. Dig it out, follow James’ instructions below and free yourself from Windows. I guarantee you will not be disappointed.

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Mesa in the Martian northern lowlands

3:21 pm

Mesa in the dry northern lowlands
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was taken on February 2, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO) and shows a mesa sticking up on the relatively flat and featureless northern lowland plains in Utopia Planitia, the second largest impact basin on Mars.

The full image shows three such mesas. Though pictures taken in the northern lowlands of Utopia tend to show evidence of buried ice or glaciers, the impression I get from this picture is one of dryness. If there is any ice here, it is below ground. And even that seems unlikely. The surface surrounding nearby craters does not have that squishy and slushy look that is seen in the north when an impact occurred on near surface ice. Instead, the ground looks solid.

The overview map below reinforces this impression.
» Read more

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Russia today confirmed it will return NASA astronaut as planned

9:12 am

As expected, Russia today confirmed in its state-run TASS news agency that NASA astronaut Mark Vande Hei will come back to Earth in its Soyuz capsule on March 30th, as planned.

The Soyuz MS-19 space capsule with Anton Shkaplerov, Pyotr Dubrov and Mark Vande Hei is expected to land on March 30. Dubrov and Vande Hei arrived on the ISS in the Soyuz MS-18 spacecraft together with Oleg Novitsky. This descent module brought back to Earth the two feature film crew members – actress Yulia Peresild and film director Klim Shipenko, who had arrived on the ISS together with Anton Shkaplerov in the Soyuz MS-19 on October 5.

There had been a number of stories in the mainstream press suggesting the Russians would leave Vande Hei behind in response to the international sanctions being imposed on Russia because of its invasion of the Ukraine. All were based on a single comment by Roscosmos’ head Dmitry Rogozin, who had simply noted visuals from a Russian news source and aired in the U.S. that showed the Russian half of ISS separating away and leaving Vande Hei behind. Rogozin was only noting that the U.S. press was worried about this possibility.

There was no chance the Russians would separate its half of ISS now. Zero. To do such a thing will require several months of preparation. For example, the Russian half has at least one module, Zvezda, that is failing. If Russia ever creates its own new space station using part of ISS, it will have to launch some new modules first.

Also, for Russia to leave Vande Hei behind would be a public relations disaster that would only make worse the disaster of its invasion of the Ukraine. Russia might end its partnership at ISS in the near future, but it won’t do it in a way that might threaten the lives of any astronauts, from any nation.

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Ingenuity completes 21st flight on Mars

3:54 pm

Overview map
Click for interactive map.

According to a tweet today from JPL, the Mars helicopter Ingenuity has successfully completed its 21st flight on Mars, traveling 1,214 feet in two minutes and nine seconds at an average speed of 12.6 feet per second.

The red dot on the map to the right shows Perseverance’s location as of today. The green dot indicates Ingenuity’s position before the 21st flight. Since neither the Perseverance nor the helicopter teams have posted any updates describing the 21st flight, it is difficult to indicate a precise location for its landing site. All we know is that the helicopter is supposed to fly to the northwest, cutting across the rougher region while the rover follows the tan dotted line around that rough region, with both targeting the delta to the northwest.

As a guess, I have placed a black dot about 1,200 feet to the northwest.

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Startup Astrolab unveils its manned lunar rover design

9:20 am

Capitalism in space: A small startup company, Astrolab, yesterday unveiled its concept for a manned lunar rover, designed for NASA’s Artemis program.

The company has already built a full scale prototype, which it tested in Death Valley. It also intends to try to win NASA’s contract for building it, with bidding expected to begin in only a few months.

Astrolab will likely have major competition for the LTV contract. Lockheed Martin announced in May 2021 a partnership with General Motors to design lunar rovers but said at the time their concept was still in the early stages. Northrop Grumman announced in November it was working with several companies on a lunar rover design but also provided few technical details.

By contrast, Astrolab, based in Hawthorne, California, is a 15-person company founded two years ago after [Jaret Matthews, the founder of the company,] left SpaceX.

In a rational world, Astrolab’s small size and newness would not matter, if its design was best. In the strange world of our modern federal government, however, the political clout of big companies like General Motors and Northrop Grumman could easily be more important, even if their designs are mediocre and cost much more. Their designs might not be inferior, but their clout cannot be ignored. It will make Astrolab’s success far more difficult, requiring this startup to offer something much more superior to have a chance of winning.

At the same time, the competition might very well force the older big space companies to up their game, which will be all to the good, for everyone.

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Software company aims to launch 250 satellite weather constellation

9:06 am

Capitalism in space: Acme Atronomatic, a software company that developed the MyRadar weather app that has been downloaded 50 million times, is now planning to launch 250 satellite weather constellation, with the first test satellites scheduled for launch in April.

The satellites, scheduled to launch in April on a Rocket Lab Electron from New Zealand, are designed to test and validate hardware for Orlando, Florida-based Acme’s Hyperspectral Orbital Remote Imaging Spectrometer (HORIS) constellation.

Environmental data captured by the HORIS constellation will be paired with artificial intelligence and machine learning to create data-fusion products for the company’s government and commercial customers. Acme also intends to draw on data and imagery from the HORIS constellation to enhance its MyRadar weather app.

The first batch of Acme satellites set to launch in April are PocketQubes, satellites measuring 5 centimeters on each side. The “batch consists of our own satellite and two others that we have informally helped design and build,” Acme CEO Andy Green told SpaceNews by email. “We’re mostly focusing on the primary satellite, MyRadar1,” which is a HORIS constellation prototype.

Private weather satellites like this are the future, rather than government-built satellite, which has been the norm for sixty years. That shift is also apparently being encouraged by Congress, which the House has passed and the Senate is considering. In it NOAA’s budget to build its own weather satellites was trimmed by about 25%, from the requested $1.68 billion to $1.29 billion.

This trim is hardly painful to NOAA’s weather satellite program, which remains well funded. It does indicate however that our spendthrift Congress is interested in ways to save money in this area.

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More thumbprints on Mars!

1:22 pm

Thumbprints on Mars
Click for full image.

Cool image time! Among the many strange and unexplained geological features that scientists have identified on Mars, the thumbprint feature is one of the most intriguing. The photo to the right, cropped and reduced to post here, is a fine example, and was taken on September 10, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

The thumbprints are the lighter splotches, and are generally found near curved ridges located mostly in Martian lowlands. All appear to have crater-like features in them, though these craters are not impact craters, but likely (though not confirmed) caused by some form of underground eruption, be it mud, ice, lava or something else. Though scientists do not yet really understand the process that formed the thumbprints, the data strongly suggests that they formed in connection with glacial events. From this 2003 paper [pdf]:

TT [thumbprint terrain] as well as the associated trough systems were formed by a glacial mechanism. [Elevation] data show that the trough systems consistently lie topographically above the TT; this implies that if they were they formed by the same glacier, the troughs must have formed before the glacier retreated and formed the TT.

The splash apron around the crater near the bottom of the photo supports the glacial theory, implying the presence here of underground ice.

Scientists have also theorized wind processes and cinder cones as explanations for these features.

These particular thumbprints are located, as shown in the overview map below, in the same general area as a previous cool image of thumbprints, from April 2019.
» Read more

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Virgin Orbit signs deal to launch Welsh-built satellite from Cornwall in ’22

9:17 am

Capitalism in space: While competing spaceports are now being constructed in Scotland and hope to launch this year, Virgin Orbit yesterday signed a deal with the Wales company Space Forge to launch its satellite from Cornwall, England, in ’22.

Because Virgin Orbit is already operational, while the rockets planned for the two Scottish spaceports in Shetland and Sutherland are still being developed, it appears that Cornwall will win the race to complete the first launch from UK soil in more than a half century.

Space Forge’s business plan is in itself most intriguing.

Space Forge recently announced that, along with partners, it is developing a world-first service incorporating both launch and return of a new small class of vehicle – the ForgeStar – that can be deployed from conventional launchers to provide rapid, reliable and reusable in-space infrastructure. This inaugural mission will see Space Forge’s ForgeStar-0 platform launched for the first time and will test future return from space technology.

Aiming to unlock the next steps on the path to market expansion, dedicated in-space manufacturing, coupled with proof of reliable return, will allow Space Forge to leverage the benefits of the space environment, namely: microgravity, vacuum, and temperature, to create products impossible to manufacture on Earth.

How exactly this satellite will safely return its space-manufactured goods is not yet clear, but if it does so successfully Space Forge will have created a product that at present would be unique. While you can now get your products back from ISS, such a process is very complicated and not very cost effective. Space Forge, if successful, would simplify that process, allowing customers to launch, manufacture products in space, and get those products back, all in one package.

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Blue Origin expands its rocket engine factory in Alabama

9:04 am

Capitalism in space: Blue Origin yesterday revealed that it is hiring 300 more engineers and expanding the rocket engine factory in Alabama in order to produce flight worthy BE-3 and BE-4 engines.

Blue Origin in Huntsville spent the pandemic supporting the company’s main engine plant in Kent Washington with parts for the company’s BE-3 and larger BE-4 engines, [site lead Nathan] Harris said. “We are now actually in the process of building our first set of complete engines through our facility,” he said. Those first engines will be produced this year.

…“We’re getting very close,” Harris said. “They’re still doing quite a bit of retrofitting. As you learn, anytime you retrofit something that’s over 60 years old, it takes a little bit more and there’s a little bit more that you unearth that was undiscovered.”

Harris said he expects to be testing the BE-3 “in the next couple of months followed shortly by the BE-4.” [emphasis mine]

This may be good news for both ULA’s Vulcan rocket as well as Blue Origin’s own New Glenn rocket. Both need the BE-4 engine, and both have been delayed years because it has not been ready on time. While the engine problems appear to have been resolved, Blue Origin had not put any thought into developing a practical and affordable manufacturing process that would allow it to build enough engines to serve both itself and ULA.

This expansion at the engine factory suggests the company is finally moving into its production phase. The highlighted sentence above however also tells us that the first flight worthy BE-4 engines are still months away, which will further delay launch of Vulcan and New Glenn. It is now certain that neither will launch this year, putting both rockets more than three years behind schedule.

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Georgia voters kill Camden spaceport project

9:41 am

The residents of Camden County in Georgia yesterday voted by a margin of 72% to 28% to end the county’s project to build a project there.

There are hints that county officials might still try to proceed, having already spent more than $10 million on the project. There are also strong indications that if they do, they will be blocked legally on many fronts.

What this vote suggests is that Americans continue to be uninterested in more commerce, and are easily convinced to put environmental claims first in any political battle. The opponents of the spaceport had said that the spaceport threatened local wildlife — something that clearly doesn’t happen based on more than a half century of data at Cape Canaveral — and the voters in Camden were quick to agree. The voters also probably had a bit of not-in-my-backyard behind their vote as well.

Whether Camden would have succeeded as a spaceport of course is unknown. There are a lot of such facilities being proposed and built, and it is unclear if their number fits the actual launch demand.

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Monitoring one glacier flowing off a mesa in Mars’ glacier country

1:28 pm

Vicous glacial flow on Mars
Click for full image.

Today’s cool image takes us back to the mesa in Mars’ glacier country that first clued me in on the prevalence of ice in the Martian mid-latitudes. The photo to the right, rotated, cropped, and reduced to post here, was taken on November 13, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), and shows a viscous flow coming down from a hollow on that mesa’s southern wall.

The new image has likely been taken to see if anything has changed since the previous image was taken in 2014. Based on the resolution published at the MRO website, nothing seems to have changed, though with more sophisticated software higher resolution versions of the images are available that might show some changes.

In my first post about Mars’ glacier country in December 2019, this flow was one of four that I featured coming off this same 30-mile wide mesa, as shown by the first overview map below.
» Read more

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Iran launches military satellite

8:46 am

The new colonial movement: It appears that Iran has successfully launched a small military satellite into orbit, Noor-2, though exactly when remains unclear.

IRGC [Islamic Revolutionary Guard Corps] said the Noor-2 satellite reached a low orbit of 500km (310 miles) above the Earth’s surface on the Ghased satellite carrier, state-run Islamic Republic News Agency (IRNA) reported. It described the Ghased as a three-phase, mixed-fuel satellite carrier.

IRGC did not immediately release photos or video of the launch. Putting the second satellite in space would be a major advance for Iran’s military.

The Ghased or Qased rocket uses a mobile launcher design, and was used for Iran’s previous successfully launch in 2020.

In confirming the launch, U.S. Space Command officials called the satellite nothing more than “a tumbling webcam in space,” suggesting it is not very sophisticated. At the same time, the first stage of Qased is essentially a ballistic missile. To be able to use this mobile launcher to get anything into orbit means that same mobile launcher, without the upper stage, could deliver missiles anywhere on Earth, and do so in a manner that is undetectable prior to launch.

This launch, the first for Iran in 2022, does not change the 2022 launch race leader board:

9 SpaceX
5 China
2 Russia
2 ULA

The U.S. leads China 14 to 5 in the national rankings.

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Fractured terrain on Mars

1:39 pm

Fractures on Mars
Click for full image.

Today’s cool image, which at first glance does not seem so puzzling, actually falls into my “What the heck?” category of baffling Martian geology. The picture to the right, cropped and reduced to post here, was taken on January 15, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). Labeled “Avernus Cavi fractures”, it shows what resembles the well-documented chaos terrain seen in many places on Mars, where erosion over eons along fault lines creates mesas with random criss-crossing canyons.

The problem is that this location is practically on the Martian equator, and chaos terrain tends to be found in the mid-latitude bands where there are many glaciers, suggesting the cyclical waxing and waning of those glaciers is what causes the erosion. Here at the Martian equator the terrain is very dry. No glaciers.

Moreover, note the higher mesa near the top center. Its flat top suggests that once this terrain was covered with an even higher layer of material, almost all of which was stripped away evenly everywhere, except where that mesa sits. As an amateur geologist I can’t think of any sequence of events that would do such a thing. I suspect professionals might have problems themselves.

Then there are the small parallel ridges. They suggest dunes, especially inside the depressions where sand and dust can get trapped. On the mesa tops however these ridges are more mysterious. Why for example are they aligned with the small ridge in some hollows, but not others? They in many ways remind me of the ridges in this earlier “What the heck?” cool image, also right on the equator.

The overview map below provides some help, though not much.
» Read more

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Astra completes investigation into February 10th launch failure

8:44 am

Capitalism in space: Astra today released the results of its investigation into its February 10th launch failure, confirming that the failure occurred because the improper separation of the fairings on the upper stage.

Through their analysis, Astra confirmed that the payload fairing on LV0008 failed to separate properly prior to upper stage engine ignition due to an electrical issue. The five separation mechanisms that are present in the Rocket 3 fairing were triggered in an incorrect order, resulting in unexpected fairing movement that caused a disconnection in the electrical wiring. This meant that one of the five separation mechanisms did not receive the command to open, thereby preventing the fairing from separating completely.

Upon further investigation, Astra narrowed the root cause of the fairing separation issue down to an error in the electrical harness engineering diagram for the separation mechanisms. The harness was built and installed as specified by the drawing and installation procedures, but an error in the drawing itself led to two of the five harness channels being inadvertently swapped.

In addition, the company identified a software problem “that left the upper stage engine, Aether, unable to utilize its thrust vector control (TVC) system – which allows the engine to gimbal and maneuver the vehicle.”

The company states that both issues have been corrected, and is now targeting March 13 for its next launch, taking place from Kodiak, Alaska, and only carrying a test dummy payload that will not be released from the upper stage. Thus, this test launch will be similar to the company’s only orbital launch on November 19, 2021.

Astra’s fast investigation, fix, and determination to launch again quickly speaks well of the company. Why however it doesn’t test its deployment system with a dummy satellite on this next test launch is somewhat puzzling, especially since it would be very easy to release that dummy into an orbit that quickly decays and burns up in the atmosphere.

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Chinese rocket stage impacts Moon

3:56 pm

What is believed to be an abandoned upper stage from a Chinese launch in 2014 is now believed to have impacted the Moon’s far side, as predicted by the estimates of its orbital mechanics.

None of this story is certain, other than amateur astronomers had identified an abandoned uppers stage that they calculated would hit the Moon on March 4th. While the data strongly suggests it was an upper stage from a Chinese launch, that is not confirmed. And so far we do not have confirmation of the impact either. Expect images identifying the impact site from Lunar Reconnaissance Orbiter (LRO) in the next few months.

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