Tag: space junk

Senate committee gives NASA and Commerce responsibility for removing space junk

9:10 am

The Senate Commerce committee has now okayed a bill that would require NASA to develop several space junk removal projects while giving the Commerce department the responsibility of identifying what space junk needs to be removed.

The core of the bill would direct NASA to establish an active debris removal program. That would include funding research and development activities “with the intent to close commercial capability gaps and enable potential future remediation missions for such orbital debris,” the bill states. NASA would also fund a demonstration mission for debris removal and allow it and other agencies to procure debris removal services.

The version of the ORBITS Act approved by the committee is different from the version introduced earlier this year. Among the changes is in a section that originally called on NASA to develop a prioritized list of orbital debris to remove. In the new version, that responsibility is given instead to the Commerce Department. The Commerce Department, through its Office of Space Commerce, is developing a space traffic coordination system called the Traffic Coordination System for Space (TraCSS) that will take over civil space traffic management roles currently handled by the Defense Department. That involves taking in data from Defense Department and other sources and using it to provide warnings of potential close approaches to satellite operators.

Though unstated, this bill appears to be a direct slap at the FCC’s effort under the Biden administration to claim the power to regulate space junk, despite its lack of statutory authority to do so.

The bill is of course not yet law, as it still needs to be approved by both the House and Senate. However, some version that stops the FCC now seems very likely, as the House itself has already rejected a bill that would have approved the FCC power grab.

0 comments

India officials confirm Australian beach debris comes from an old PSLV rocket

9:12 am

Officials from India’s space agency ISRO have confirmed that the large metal cylinder that washed up on an Australian beach on July 16th came from an old PSLV rocket, which which one remains at present unknown.

“We have concluded the object located on a beach near Jurien Bay in Western Australia is most likely debris from an expended third-stage of a Polar Satellite Launch Vehicle (PSLV). The PSLV is a medium-lift launch vehicle operated by ISRO,” the space agency tweeted.

A day after the object surfaced on July 16, the ISRO had confirmed to HT that the object was a part of PSLV upper stage but an old one. ISRO chairman S Somanath had said, “This is a part of PSLV upper stage but an old one. It is not from a recent mission, it must be older.” PSLV’s third stage is a solid rocket motor that provides upper stages high thrust after the atmospheric phase of launch.

If this came from an upper stage, it means it survived re-entry far better than expected, and then survived floating the the ocean for a long period. Since it does not appear as yet that the agency has determined which launch the object came from, we do not know how long.

2 comments

ESA successfully completes controlled re-entry of its Aeolus satellite

9:07 am

Engineers for the European Space Agency (ESA) yesterday successfully completed the controlled re-entry of its Aeolus satellite above Antarctica, where it burned up in the atmosphere.

The spacecraft would never have hit the ground had its re-entry — which would have happened anyway in just a matter of weeks — been allowed to happen in an uncontrolled manner. However, ESA decided to use the satellite to practice disposal techniques it wishes to make standard for all future satellites, especially those whose orbit keeps them in space long after their mission is finished.

0 comments

House rejects FCC bill because the bill approved FCC’s recent power grab

9:35 am

The full House yesterday failed to pass an FCC bill designed “to reform satellite spectrum licensing regulations” because of opposition to language that provided a backdoor approval of the FCC’s recent power grab that extended its regulatory power beyond its legal statutory authority.

[T]he leadership of House Science Committee opposed the bill because of provisions regarding regulation of space debris and space traffic management. They pointed to language in the bill that directed the FCC to establish “specific, measurable, and technology-neutral performance objectives for space safety and orbital debris.”

In a “Dear Colleague” letter circulated to House members ahead of the vote, the bipartisan leadership of the full committee and its space subcommittee argued that the FCC would be overstepping its authority by attempting to regulate space safety. “Congress has never explicitly granted FCC authority to regulate in these areas, and doing so now is a significant policy decision,” the letter stated, adding that the FCC also lacked expertise to do so. “Assigning FCC responsibility to both create these rules and assess an applicant’s compliance would divert resources from FCC’s primary mission of assessing the applicant’s spectrum use.”

While this sounds like Congress has actually decided to exercise its Constitution authority and restrict this maverick agency, don’t bet on it. The vote for procedural reasons required a two-thirds majority. 250 House members voted in favor, and 163 voted against, a clear majority in favor that was only 16 votes short of approval.

Moreover, even if Congress removes the language approving the FCC power grab and then passes the bill, it will have done nothing to stop that power grab. Expect FCC officials under Biden to ignore the law and continue to demand the right to regulate how satellites are de-orbited, something it hasn’t the knowledge or authority to do. Satellite companies will have to sue to stop it, an expensive task that will hinder their operations and cost money. Many will simply decide to go along.

The result will be a more powerful unelected administrative state — beholden to no law — and a weaker Congress unwilling to represent the American citizenry by wielding its Constitutional power.

0 comments

World Economic Forum decides its business is running space too!

8:13 am

We’re the government and we’re here to help you! The World Economic Forum (WEF) yesterday released its proposed new set of guidelines for mitigating space junk in orbit, even though some of the most important commercial satellite operators (SpaceX and Viasat) have not signed on.

The Space Industry Debris Mitigation Recommendations document, released by the WEF June 13, outlines recommendations to avoid collisions that can create debris by limiting the lifetime of satellites in orbit after they have completed their missions and improving coordination among satellite operators.

Among those recommendations is to establish a success rate for “post-mission disposal,” or removal of satellites from orbit after the end of their missions, to 95% to 99%. That disposal should be completed no more than five years after the end of each satellite’s mission.

You can read the guidelines here [pdf], which the WEF is pushing governments worldwide to adopt. Though SpaceX and Viasat have not signed on, 27 companies have endorsed the guidelines, including OneWeb, Airbus, Axiom, and a host of orbital tug and space junk removal startups, the latter of which all benefit from these guidelines.

While the proposals makes some sense, everyone in the space industry should remain skeptical, and resist the call for more government regulation. Once this power is given to government it will never be recanted, and will only grow with time. Moreover, all signs indicate that such interference by law by government is unnecessary. Both satellite operators and most rocket companies (the exception mostly China) have been making strong efforts to deal with the issue of space junk, for profit. The fact that there are a host of orbital tug and space junk startups right now illustrates this. Investors have realized there is money to be made removing satellites and space junk. They don’t need government telling them what to do.

6 comments

New House bill proposes giving FAA responsibility for monitoring space junk

10:10 am

A just proposed House bill for reauthorizing the Federal Aviation Administration (FAA) also proposes giving that agency the responsibility for monitoring space junk.

The bill instructs the FAA to establish a program to track objects “that are potential sources of covered airborne debris” with a focus on identifying those about to reenter and could pose a risk to aircraft in airspace. That program would coordinate with the FAA’s air traffic control system to identify airspace that needs to be closed for a reentry. It would allow the FAA to establish its own space situational awareness (SSA) facilities and work with other federal agencies, companies or international organizations for data on such objects.

While the focus of the bill is tracking debris to assess airspace risks, the bill does enable additional uses of the data the FAA collects. In particular, it directs the FAA to offer “a basic level of data, information, and services” at no charge. That includes maintaining a public catalog of space objects and “emergency conjunction notifications” of such objects.

The article at the link notes that this new FAA job would also duplicate work of the Space Force, as well as a new Commerce Department office tasked with similar responsibilities. It also duplicates the same responsibilities the FCC has created for itself, outside of its statutory authority.

In other words, there is a factional turf war going on within the swamp, with each faction attempting to establish its territory and control over this work.

The result? Expect Congress to allow this duplication to go forward, funding all three efforts. As we all know, money grows on trees, and hiring as many Washington bureaucrats is the most important thing Congress can do, even if those bureaucrats don’t do anything useful.

5 comments

Space junk removal company ClearSpace signs deal to launch on Vega-C

9:59 am

The European company ClearSpace has signed a launch deal with Arianespace to fly the first test of its space junk removal robot on a Vega-C rocket set to launch some time in the second half of 2026.

The development of ClearSpace’s robot, which will use four grappling arms to surround and then capture its target, was paid for under a European Space Agency (ESA) $121 million contract which also required it to be launched on an Arianespace rocket. The problem right now is that it will fly as a secondary payload, and a primary payload has not yet been found.

Finding that primary payload is going to be difficult. First, Vega-C failed on its second launch last year and has not yet flown again. Second, it is expendable, and though cheaper than Arianespace’s other rocket, Ariane-6 (which has not yet launched), it is still more expensive than other commercial rockets now available. Third, the customer of that primary payload must also want to go into an orbit that will allow ClearSpace’s robot to reach its target, an abandoned Vega Payload Adapter from a previous launch.

As has been typical of Europe, this development is proceeding too slowly and is being hampered by requirements unrelated to profit and loss. By ’26 expect several other space junk removal companies — Astroscale and D-Orbit come to mind — to have already demonstrated their capabilities and already garnering market share, before ClearSpace even flies.

0 comments

Startup proposes capturing space junk with a satellite operating like a whale

9:53 am

Paladin satellite capturing space junk

Paladin, a new space junk removal startup based in Australia, has now proposed building a satellite that would literally swallow space junk and then send it over the ocean to burn up.

The image to the right shows the satellite as a piece of junk is about to be captured. The advantage it has on all other designs for capturing space junk is its simplicity. No nets, no harpoons, no grappling arms. The debris is captured inside a box inside the satellite, and then that box is released to burn up. This quote from the startup’s founder and CEO, Harrison Box, illustrates well his investment argument:

“The European Space Agency is currently paying 100 million euros to remove just one item of space junk. That’s the value they put on the job,” says Box. “Imagine the value of being able to remove hundreds.”

Paladin is one of 29 startups that have divided up $14 million in development money provided by a program of the Australian government. Thus, it is only at the very beginning of development, without a lot of cash to work with.

The idea however is smart, with great potential.

10 comments

Student cubesat demonstrates how to use a solar sail for satellite deorbit

10:04 am

Using cheap off-the-shelf parts students at Brown University have successfully tested a simple solar sail in space and shown how it can be used to de-orbit satellites efficiently and inexpensively.

They built a satellite on a shoestring budget and using off-the-shelf supplies available at most hardware stores. They even sent the satellite — which is powered by 48 Energizer AA batteries and a $20 microprocessor popular with robot hobbyists — into space about 10 months ago, hitching a ride on Elon Musk’s SpaceX rocket.

…The students added a 3D-printed drag sail made from Kapton polyimide film to the bread-loaf-sized cube satellite they built. Upon deployment at about 520 kilometers — well above the orbit of the International Space Station — the sail popped open like an umbrella and is helping to push the satellite back down to Earth sooner, according to initial data. In fact, the satellite is well below the other small devices that deployed with it. In early March, for instance, the satellite was at about 470 kilometers above the Earth while the other objects were still in orbit at about 500 kilometers or more.

Based on the data, it is expected the cubesat will burn up in the atmosphere in five years, not twenty-five or so predicted for the other cubesats launched to the same orbital elevation.

This experiment above all proves that most of the very expensive demo missions to test this kind of technology have been grossly over-budget. The entire cost of this student-built project was just $10,000, and it actually was more successful in proving this technology than a number of past solar sail projects that cost millions.

4 comments

China’s Long March 4C rocket launches two Earth observation satellites

9:23 am

China today used its Long March 4C rocket to launch two Earth observation satellites from one of its interior spaceports.

No word on whether the expendable first stage landed near habitable areas. In related news the upper stage of a Long March 2D rocket, launched in June 2022, burned up over Texas on March 8, 2023. Such upper stage uncontrolled de-orbits are not unusual, and the effort by this news outlet to make a big deal about it is just politics. Unlike the lower stages of China’s rockets that hit the ground right after launch, it is very unlikely any pieces reached the surface, and any that did were small and posed a small risk.

The 2023 launch race:

16 SpaceX
8 China
3 Russia
1 Rocket Lab
1 Japan
1 India

American private enterprise still leads China 17 to 8 in the national rankings, and the entire world combined 17 to 13. SpaceX alone still leads the entire world, including American companies, 16 to 14.

0 comments

ISS maneuvers to avoid satellite

9:02 am

Though a collision was unlikely, Russian engineers fired the engines of a docked Progress freighter on March 6, 2023 to adjust ISS’s orbits in order to guaranteethat an Earth-observation satellite would fly past harmlessly.

At approximately 7:42 a.m. (12:42 GMT), thrusters on the Progress 83 resupply vessel currently docked with the International Space Station (ISS) fired for a little more than six minutes, raising the station’s orbit to prevent the potential collision, NASA said in a blog post (opens in new tab).

The satellite in question appears to have been an Argentinian Earth-observation satellite launched in 2020, according to Sandra Jones, from NASA’s Johnson Space Center. In a tweet, Dr. Jonathan McDowell, astronomer and astrophysicist at the Harvard–Smithsonian Center for Astrophysics, narrowed the possible candidates down to Nusat-17, noting the constellation’s orbital decay.

The article at the link includes a nice graph showing the number of times per year engineers have had to do this since 1999. The number of such maneuvers ranges from 0 to 5 per year, with no clear trend up or down. That lack of a trend suggests the constant howls claiming that space junk is a growing problem might be a bit overstated. This is not to say it isn’t a problem, merely that the problem might not be as severe as some claim.

1 comment

ISRO successfully de-orbits defunct satellite

9:09 am

Last orbit of MT1

ISRO announced today that it successfully de-orbited the defunct Earth observation MT1 satellite on March 7, 2023, bringing it down over the Pacific Ocean.

The map to the right shows the timing of the last two de-orbit burns during the satellite’s last orbit.

MT1’s orbit was high enough so that it would have remained in space for about 100 more years, with a lot of fuel that might have caused an explosion and the release of many pieces of space junk. ISRO managers decided to allocate the funds to use that fuel to de-orbit it, as a test for making this a routine part of any satellite end-of-mission.

0 comments

ISRO attempting controlled reentry of old satellite originally lacking in such plans

9:54 am

India’s space agency ISRO has been attempting the controlled reentry of an old India-French climate satellite that had originally been placed in a high enough orbit that de-orbit was not expected.

An uninhabited area in the Pacific Ocean between 5°S to 14°S latitude and 119°W to 100°W longitude has been identified as the targeted re-entry zone for the [Megha-Tropiques-1 (MT1)]. Since Aug 2022, 18 orbit manoeuvres have been performed to progressively lower the orbit and on March 7 the ground impact is expected to take place between 4.30 p.m. and 7.30 p.m. IST.

The satellite, once no longer able to do its primary function, still had a lot of fuel left that left it a threat. ISRO managers decided to use that fuel to lower the high orbit — where MT1 was expected to remain for at least 100 years — so that the satellite could be brought down safely now.

The real story here is ISRO’s decision to commit funds to pay for this work. Until recently, most satellites are launched without any funding to remove them once launched. SpaceX changed this with its Starlink constellation, with deorbit always included as part of each satellite’s operational plan.

0 comments

ESA successfully unfurls solar sail from cubesat

9:32 am

The European Space Agency (ESA) has successfully unfurled a solar sail from a cubesat in order to test using that sail to help de-orbit that cubesat more quickly.

The sail was deployed from a package measuring 3.93 by 3.93 by 3.93 inches (10 by 10 by 10 centimeters). The unfurling process was captured by an integrated camera onboard the Ion satellite carrier, which is operated by the Italian company D-Orbit.

The satellite will eventually burn up in the atmosphere, providing a quicker, residue-free method of disposal, according to ESA.

A short video of that unfurling can be viewed here.

This flight was intended as a proof of concept. Thus, ESA like many similar NASA test projects will now close the project down, which is dubbed ADEO, having no specific plans to do anything with what was learned. Private cubesat companies, however, might adopt this solar sail deployment technology, but I suspect less for de-orbit purposes but instead as a method of maneuvering their satellite in orbit.

0 comments

Newly passed Senate bill requires consultation between industry and government on space junk

9:50 am

Though the bill still needs to be passed by the House, a just passed Senate bill requires consultation between industry and government on space junk, short circuiting recent attempts at the FCC as well as in the House to impose arbitrary government regulations.

You can read the Senate bill here [pdf].

The final result will still be government regulation on the lifespan and final deposition of any object placed in orbit, from nanosats to large manned space stations, but unlike the earlier FCC proposal and House bill, NASA and other government agencies will have to obtain feedback from the commercial space industry before such regulations are imposed.

Sounds great, eh? In truth, this bill in the end still gives full power to the federal government to control the launching of future spacecraft of all sizes. It also leaves the details entirely up to the bureaucracy. If passed Congress would cede its regulatory power to unelected bureaucrats in the executive branch.

The requirement that industry consultation occur simply means that the initial regulations will likely make some sense. Beyond that however the power it bequeaths to the federal bureaucracy in NASA, FAA, FCC, and other agencies will in the long run be still abused.

The need for the establishment of an independent space-faring society, free from odious Earthbound regulation, continues to grow.

4 comments

ISS spacewalk postponed because controllers had to maneuver station to avoid space junk

9:26 am

An American spacewalk to install new solar panels to ISS yesterday was suddenly scrubbed when ground controllers identified a piece of space junk that was going to fly within a quarter mile of the station.

While flight control teams were preparing for today’s U.S. spacewalk, updated tracking data on a fragment of Russian Fregat-SB upper stage debris showed a close approach to station. Based on this new data, flight control teams directed the crew to stop spacewalk preparations as the ground team stepped into procedures to perform a Pre-Determined Debris Avoidance Maneuver (PDAM.)

Russian controllers successfully used the engines on a docked Progress freighter today to complete the avoidance maneuver, firing those engines for 10 minutes and 21 seconds.

It appears the station was never in any danger.

1 comment

Chinese upper stage disintegrates in orbit

10:21 am

A Chinese Long March 6 upper stage, launched in on November 11, 2022, has disintegrated into more than 350 in orbit and now pose a threat to other orbiting spacecraft.

The Long March 6A rocket launched from Taiyuan, north China, on Nov. 11, successfully inserting the Yunhai 3 environmental monitoring satellite into its intended orbit.

The upper stage of the rocket, however, apparently suffered a breakup event shortly thereafter. On Nov. 12, the U.S. Space Force’s 18th Space Defense Squadron (18SDS) reported that it was tracking at least 50 discrete pieces of orbital debris from the rocket body. Ongoing tracking from 18SDS, which focuses on space domain awareness, now states that the debris cloud has grown to 350 objects associated with the rocket stage.

Based on the data, it appears the break-up occurred because the stage had an explosive event. It could have been programed to fire its engine to quickly de-orbit it and something went wrong. Or not. The Chinese have not demonstrated much concern about such issues.

4 comments

November 25, 2022 Quick space links

3:36 pm

Courtesy of BtB’s stringer Jay.

 

 

2 comments

Chinese seize space debris being towed by Filippino sailors

8:44 am

According to Filippino Navy officials, after their sailors had captured and was towing a piece of space floating rocket debris back to shore, the Chinese Coast Guard arrived and forcibly seized it, cutting the tow line.

As they were traveling back to the island, “they noticed that a China coast guard vessel with bow number 5203 was approaching their location and subsequently blocked their pre-plotted course twice,” Carlos said in a statement.

The Chinese coast guard vessel then deployed an inflatable boat with personnel who “forcefully retrieved said floating object by cutting the towing line” attached to the Filipino sailors’ rubber boat. The sailors decided to return to their island, Carlos said, without detailing what happened.

Chinese officials denied this, saying they took possession after a “friendly consultation.”

Whether or not the Chinese took this debris by force or not, the fact remains that it existed, indicating once again that China is dropping rocket parts indiscriminately on other nations. In this case the debris probably came from either a first stage or a strap-on booster, released shortly after the launch from a low enough altitude that it doesn’t burn up in the atmosphere.

4 comments

China: We like dumping out-of-control rockets on your head!

3:49 pm

China has now signaled that it intends to ramp up the launch rate of its Long March 5B rocket, its most powerful rocket but also a rocket with a core stage that falls to Earth out-of-control after each launch, risking injury and damage to others.

Liu Bing, director of the general design department at the China Academy of Launch Vehicle Technology (CALT), told Chinese media that the the Long March 5B, designed for launches to low Earth orbit, would be used together with the Yuanzheng upper stage series to launch multiple satellites for constellations.

Though not clearly stated, the launcher and YZ-2 combination could be used to help deliver high numbers of satellites into orbit for the planned national “guowang” satellite internet megaconstellation.

It is very possible that with the addition of an upper stage, engineers could reconfigure the rocket so that the first stage is shut down and separated earlier so that it immediately falls into an ocean drop zone following launch. At the same time, making sure that drop zone is always over the ocean might be difficult for some polar launches.

What China really has to do is to upgrade the engines on the core stage so that they can be restarted. At present these engines can only be started once, and once shut down they are dead. If the stage reaches orbit — which it has done on all previous launches — there is then no way to control it, and since that orbit is unstable the stage crashes to Earth, who knows where, shortly thereafter. With restartable engines the stage could easily be de-orbited properly.

China has expressed utter contempt for the complaints of other nations about these out-of-control crashes, claiming the risk is infinitesimal. While quite small, it still exists.

Ted Muelhaupt of the Aerospace Corporation said in July that the odds of debris from the reentry following the launch of the Wentian module ranged from one in 230 to one in 1,000. This was more than an order of magnitude greater than internationally accepted casualty risk threshold for the uncontrolled reentry of rockets of one in 10,000, stated in a 2019 report issued by the U.S. Government Orbital Debris Mitigation Standard Practices.

Small or not, China is a signatory to the Outer Space Treaty, and every out-of-control crash has been a violation of that treaty. This behavior clearly makes China a rogue nation, not to be trusted.

5 comments
1 2 3 4 5 … 9