Tag: engineering

How Russia’s next ISS module got contaminated

9:44 am

Russia’s next module for ISS, MLM or Nauka, has been delayed years because of the discovery of sawdust sized metal particles throughout the module’s propulsion system. This article describes how this happened, showing the incredibly incompetence and bad quality control that caused it.

At the time, workers at Khrunichev were cutting pipelines and removing other components of the module’s propulsion system, in order to reconfigure it from its original role as a backup to the Zarya FGB module into the MLM. For example, a set of six tanks, which would be used for refueling of the ISS during the FGB mission, were removed from the exterior of the spacecraft in order to make room for scientific instruments and for the attachment of the European Robotic Arm, ERA.

The official conclusion of the probe said that the contamination had stemmed from the “lack of methodological and technological support for the operations of cutting pipeline connections in the pneumatic and hydraulic system, PGS, which was needed to guarantee the meeting of requirements for ensuring the sterility of the internal cavities in the pipelines and system hardware.” It is essentially bureaucratic speak for letting metallic dust formed during sawing off the lines pour into the interior of the remaining components.

According to one legend circulating at GKNPTs Khrunichev, the workers who were sawing off pipelines from the module thought they were dismantling the entire spacecraft for scrap. That story would sound completely unbelievable if not for other almost as incredible incidents of carelessness, poor quality control and incompetence within the industry in recent years, such as the installing navigation sensors on a Proton rocket in the upside down position or loading a Block DM-03 space tug on another Proton with too much propellant.

Read the whole story. It is most revealing of the overall systematic problems within Russia’s aerospace industry.

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China launches first unmanned freighter in test flight

7:03 pm

China today successfully launched its first unmanned cargo freighter, Tianzhou-1.

After entering orbit, according to CCTV-Plus interviews with Chinese space officials, Tianzhou-1 is slated to conduct a first docking with Tiangong-2 in a few days. The two spacecraft will then have a two-month in-orbit flight to test the liquid-propellant refueling as well as the cargo spaceship’s control of the combined vehicles, CMSA officials said.

The two spacecraft will also fly separately for three months, during which time the cargo spaceship will complete its own space science experiments. Then the two will have the third docking to test the automatic fast-docking technology, a test to complete the docking within 6 hours.

This was also the second launch of their most powerful rocket, Long March 7, and the second launch from their new spaceport at Wenchang.

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Scientists release geological map of potential landing site for 2020 rover

3:51 pm

Researchers have released a detailed geological map of Northeast Syrtis Major, one of the prime candidate landing sites for NASA’s next Mars rover, scheduled for launch in 2020.

Within Northeast Syrtis are the mineral signatures of four distinct types of watery and potentially habitable past environments. Those minerals had been detected by prior research, but the new map shows in detail how they are distributed within the region’s larger geological context. That helps constrain the mechanisms that may have formed them, and shows when they formed relative to each other.

The lowest and the oldest layer exposed at Northeast Syrtis has the kind of clay minerals formed when rocks interact with water that has a fairly neutral pH. Next in the sequence are rocks containing kaolinite, a mineral formed by water percolating through soil. The next layer up contains spots where the mineral olivine has been altered to carbonate—an aqueous reaction that, on Earth, is known to provide chemical energy for bacterial colonies. The upper layers contain sulfate minerals, another sign of a watery, potentially life-sustaining environment.

Understanding the relative timing of these environments is critical, Mustard says. They occurred around the transition between the Noachian and Hesperian epochs—a time of profound environmental change on Mars.

This press release is very much an effort by these scientists to influence the final landing site choice. They like this site, and they want to convince other scientists that are part of the project to agree with them.

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Private company builds high resolution space radar facility in Texas

6:36 pm

Capitalism in space: A private company, Leo Labs, has built a high resolution space radar facility in Midland, Texas, aimed at providing satellite companies precise location information of their orbiting satellites as well as the space junk that might threaten them.

It is not clear from the article or the company’s webpage whether they are funded by the federal government or by private capital investment. Up until now this data has been routinely gathered by the U.S. military, though obtaining it has I think been somewhat difficult due to security concerns. It seems this company is trying to compete with the government in offering a better data stream that is also easier to obtain.

Posted over Poland during my return flight from Israel.

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Israeli student cubesat launched from Atlas 5

6:04 pm

When the Cygnus capsule was placed in orbit yesterday, it also released a number of nanosats, one of which was a cubesat built by Israeli high school students.

More than 80 pupils in grades 9-12 at schools in Herzliya, Ofakim, Yeruham, Ofra, and the Bedouin town of Hura helped to construct Duchifat-2, which weighs just 1.8 kilograms (four pounds), and is just 20 centimeters (eight inches) tall and 10 centimeters wide. Due to its small size, the satellite has no motors and instead uses the earth’s magnetic field to keep itself correctly aligned in space.

Cubesats have generally been built and launched as college projects to help teach students the engineering behind satellites. This however was the only nanosat released by the Atlas 5 that involved high school students.

Note also that the project did not simply involve Jewish students.

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Want your food kosher in space?

9:57 am

While some of the food can be kosher, it is presently not possible for an astronaut on ISS to maintain a completely kosher diet.

It has nothing to do with the space station per se; it has to do with our food production facility,” Kloeris told Space.com. “We have a single packaging room on the U.S. side. All of the food that’s part of our standard menu that we provide — from what I understand, in order for them to be kosher and halal, they have to be done in separate, unique facilities. Therefore, everything we package would not meet that requirement.”


Kloeris noted that it’s possible to travel with a limited allotment of kosher or halal foods, in order to honor an astronaut’s heritage; every astronaut is allowed a certain number of crew-specific containers sent to the space station, which can account for about 10 percent of their diet.

The same limitations also apply to halal food for Muslims.

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Luxembourg rejects proposed space legislation because of Outer Space Treaty

9:37 am

Luxembourg’s legislature has rejected a proposed space regulatory framework because it did not address the legal restrictions on property rights imposed by the United Nations Outer Space Treaty.

Schneider, the deputy prime minister and minister for economy, presented a bill whose objective was to set a legal framework and give legal security to the property of minerals and other valuable resources in space, in particular on asteroids, and to regulate the authorisation and surveillance of both exploration and mining missions.

In a formal opinion published on 7 April, the council noted that private property claims are illegal or at least not legally binding in most of the international treaties and agreements relating to space and celestial bodies.

Neither the UN treaty on principles governing the activities of states in the exploration and use of outer space, including the moon and other celestial bodies of 1967, nor the agreement governing the activities of states on the moon and other celestial bodies of 1979 (which was not ratified by Luxembourg) answer the question of private property of space resources.

What is most important here is that the Luxembourg government now intends to “to ask for a revision of the question of property in the Outer Space Treaty.” As I said in my op-ed in The Federalist on Monday, nations are increasingly recognizing that the Outer Space Treaty is a problem for property rights, and needs to be revised. Otherwise, private development will be difficult if not impossible.

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Japan aims for record 8 launches in 2017

3:46 pm

Capitalism in space: If all goes as planned, Japan plans to launch a record of eight launches in a single year in 2017, partly because they will begin launch that nation’s own GPS satellite constellation.

Most of these satellites are government launches. Still, the number and in increase in launch pace indicates that Japan does not wish to be left behind in the increasing competition within the launch industry.

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North Korea missile test fails

9:35 pm

North Korea on Sunday failed to launch another ballistic missile, with the missile apparently exploding immediately upon launch.

This failure once again highlights the fact that North Korea’s communist totalitarian culture, which has made that nation very poor, puts some limit on its ability to build things like intercontinental missiles and nuclear bombs. At the same time, we must never underestimate the ability of madness to achieve irrational things. North Korea continues to be a very dangerous player on the international stage, which is why the Trump administration’s aggressive threats against it have not been protested by China in a strong manner, and instead have prompted that nation to finally apply its own pressure against Pyongyang.

In fact, it appears to me that the only ones with strong misgivings about the Trump administration’s aggressive policy against North Korea’s missile and nuclear program have been leftwing politicians, academics, and journalists here in the U.S.

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Audit finds SLS unlikely to launch in 2018

4:00 am

A NASA audit has found that it is unlikely that the first SLS test flight will take place as scheduled in 2018, and that the first manned flight is also likely to be delayed from its 2021 launch target.

“NASA’s first exploration missions — EM-1 and EM-2 — face multiple challenges that will likely delay their launch,” the report states. The missions “are not likely to launch by 2018 or 2021, respectively,” it continues.

When might a crew launch? Hard to say.

The report says incomplete NASA information makes it “more difficult for both the agency and external stakeholders to gain a full understanding of the costs of that mission or to assess the validity of the agency’s launch date assumptions.”

If the first manned flight happens in 2023, as now expected, it means that it will occur 20 years after George Bush first proposed the Crew Exploration Vehicle (Orion) and the heavy lift rocket to put it into space. The total cost to fly this one mission will be approximately $43 billion.

Let me repeat that: $43 billion and 20 years to fly a single manned mission. Does no one in government see something wrong with this picture?

Posted from the West Bank settlement of Beitar Illit.

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China launches advanced communications satellite

9:28 pm

China today successfully launched an experimental communications satellite, outfitted to test the use of ion engine attitude thrusters as well as ground-to-orbit laser communications tests.

The article also outlines China’s busy launch schedule in April, which will include the launch and first test flight of their Tianzhou-1 cargo freighter. That flight will test the freighter’s ability to rendezvous and dock with their Tiangong-2 test space station module. This article notes that the freighter has been mounted on its Long March 7 rocket in preparation for launch in mid-April.

Posted in the air, now past Nova Scotia and moving into the Atlantic.

I must say that I am very glad to get out of Newark Airport. Though they have recently upgraded the airport, they have done so at the cost of providing affordable services to the traveler. All the restaurants there are very over-priced, and provide tiny portions. I actually ended up eating two dinners at two different restaurants in order to get enough food, and paid almost $40 for the pleasure. In addition, the tip was automatically added to the bill. I had no choice about that, even though the service was routinely bad. (They had installed tablets at every table so that you could order by computer. Getting a waiter to provide water however was practically impossible, and when I did get one they were slow to bring it.)

In addition, there were no fast food restaurants, which I normally avoid but would have been a far better choice in this case.

Newark is part of the New York urban area, a decidedly leftwing Democratic enclave. Thus, I am not surprised that things there cost too much, provided poor service, and also provided few choices.

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First Falcon Heavy side first stage ready for initial tests

9:11 pm

Capitalism in space: SpaceX prepares for first Falcon Heavy launch this fall, with the first side stage ready for its first hot fire static tests while the company prepares the launchpads.

They need to finish repairing the launchpad damaged in the September 1 explosion so that the Falcon 9 can once again launch from there. Once this is done, they have an estimated sixty days of additional work to do with the Falcon Heavy pad. It is expected the switch back to the old pad will take place by August. meaning that the first Falcon Heavy launch will likely happen no earlier than October.

Posted while in the air over Nova Scotia on the way to Israel.

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China and South Korea agree to counter North Korea’s missile/nuclear program

9:33 am

Under pressure from the Trump administration to do something about North Korea’s out-of-control and aggressive nuclear and missile program, China has worked out an agreement with South Korea to take “strong action”.

It remains a question how serious this response will be, but it is also the first sign in a long time that China is finally taking the threat from North Korea seriously.

Update: China refuses acceptance of coal from a fleet of North Korean ships.

This new story confirms that China was serious about this ban when it announced it in February. Set to run to at least the end of this year, the loss of income to North Korea, very poor already, should have some influence there. Whether good or bad, however, remains unknown. One cannot expect irrational and mad individuals holding great power to come to rational conclusions.

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Turkey moves to create its own space agency

9:22 am

The new colonial movement: A draft bill to create a Turkish space agency has been introduced in that country’s parliament.

The Turkish Space Agency, according to the draft bill, will also be in charge of coordinating, managing, and operating all satellite requirements, design, manufacture, launch, and operations in Turkey, as well as coordinating private Turkish industries towards those goals. Jane’s Defence Weekly reports that the draft bill for the Turkish Space Agency has previously been held up for years due to a dispute between the Turkish military and several Turkish administrations as to who should be the lead within the agency. The draft bill in front of parliament suggests that the military have lost that argument, doubtless because of the aftermath of the July 2016 attempted coup, and instead it will take the lead on technical issues rather than policy and strategy.

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Aerojet Rocketdyne trims and reorganizes workforce

9:07 am

Capitalism in space: In an effort to reduce costs and increase efficiency Aerojet Rocketdyne is cutting approximately 300 jobs while closing facilities in California and Virginia.

Rancho Cordova’s nearly 70-year run as a hub of the aerospace industry will soon end. On Monday, Aerojet Rocketdyne Inc. announced that it would relocate or eliminate about 1,100 of its 1,400 local jobs over the next 2 1/2 years and shut down manufacturing operations in the area. The company also said it would close its facility in Gainesville, Va.

Rocket engine manufacturing will be consolidated in a new plant in Huntsville, Ala. In all, 800 jobs will be added in Huntsville by the end of 2018.

The company is faced with stiff competition from Blue Origin and others, and until now has resisted changing its methods of operation, which in the past relied on generous government contracts that were uninterested in lowering costs. That world appears to be ending, and so it appears that the Aeroject Rocketdyne is finally changing as well. This is a good thing, as it increases the chances that the company will survive.

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Scientists find persistent cold spot on Jupiter

8:59 am

In reviewing data for the past fifteen years have scientists have identified an unexpected cold region in Jupiter’s upper mid-latitudes as large as the Great Red Spot.

“The Great Cold Spot is much more volatile than the slowly changing Great Red Spot, changing dramatically in shape and size over only a few days and weeks, but it has re-appeared for as long as we have data to search for it, for over 15 years,” Stallard said. “That suggests that it continually reforms itself, and as a result it might be as old as the aurorae that form it – perhaps many thousands of years old.”

The Great Cold Spot is thought to be caused by the effects of the magnetic field of the planet, with the massive planet’s spectacular polar aurorae driving energy into the atmosphere in the form of heat flowing around the planet.

Though they think the cold region is related to the aurora, I suspect they really do not have enough information to really understand what is going on.

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