Tag: spaceflight

Soyuz puts two satellites in wrong orbit

5:55 pm

A Russian-made Soyuz rocket launched from French Guiana for Arianespace has placed two European Galileo GPS satellites into the wrong orbit.

Russianspaceweb suggests that the problem was caused by the rocket’s Russian Fregat upper stage. (Scroll down about halfway to read their report on this launch.)

Multiple independent sources analyzing the situation suggested that the Fregat upper stage had fired its engine for the right duration, however the stage’s orientation in space during the second or both maneuvers had probably been wrong. According to Jonathan McDowell, an astronomer at the Harvard-Smithsonian Center for Astrophysics and a veteran space historian, the Fregat’s angular orientation error during engine firing could reach as much as 145 degrees.

This failure is a triple whammy. It hits both Arianespace and Russia since the Soyuz was part of a partnership between the two. It also hits Europe’s Galileo GPS satellite, which after many years of development was beginning to move towards full operation.

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Sea Launch has suspended all operations until 2015

5:44 pm

Russian competition cools down: The mostly Russian-owned rocket company Sea Launch has suspended all operations until mid-2015.

I suspect that the Russian government, now in control of almost all Russian aerospace efforts, is not interested in building this company up as the rocket it uses is partly made in Ukraine and is a competitor to Russia’s new Angara rocket. Everything the Russian government has done for the past year has indicated a desire to shut down all cooperative efforts with other countries and focus everything towards all-Russian efforts.

Thus, Sea Launch dies.

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Falcon 9R destroyed during failed test flight

10:49 pm

In a test flight today of SpaceX’s Falcon 9R vertical take off and landing rocket the rocket was destroyed when ground controllers detected an “anomaly.”

Falcon 9R is a three engine version of the Falcon 9 first stage, designed to test designs for making that first stage capable of landing vertically. It has flown successfully a number of previous times, but this time it appears something was not quite right during the flight and ground controllers had to destroy it for safety reasons.

Is this a set back? Of course. Is it a failure? Not really, as it was a test flight of very cutting edge technology and even failures will teach you something to improve the engineering.

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A problem with drilling on Mars

9:07 am

In drilling a new hole while scientists considered Curiosity’s future route to Mount Sharp, the drill cut off operations prematurely.

Engineers think that the rock might have shifted during drilling, causing the robot rover to abort. They have ordered the rover to take a lot of pictures of the situation so they can figure out what happened.

I should note that engineers take a large risk every time they use Curiosity’s drill, as the design of the rover’s electrical system is such that the drill might short everything out while it operates. Thus, when I see a story about a problem with any drilling operation, I become very concerned. In this case, however, it appears to not be a problem with the rover itself.

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Air Force requests info for new engine

8:54 am

Corporate welfare: The Air Force on Thursday issued a request for information from industry for the replacement of the Russian-made engines used by ULA’s Atlas 5 rocket.

Companies are being asked to respond by Sept. 19 to 35 questions. Among them: “What solution would you recommend to replace the capability currently provided by the RD-180 engine?” Air Force officials have told Congress they only have a broad idea of how to replace the RD-180. Estimates of the investment in money and time necessary to field an American-built alternative vary widely. Congress, meanwhile, is preparing bills that would fund a full-scale engine development program starting next year; the White House is advocating a more deliberate approach that begins with an examination of applicable technologies.

In the request for information, the Air Force says it is open to a variety of options including an RD-180 facsimile, a new design, and alternative configurations featuring multiple engines, and even a brand new rocket. The Air Force is also trying to decide on the best acquisition approach. Options include a traditional acquisition or a shared investment as part of a public-private partnership. [emphasis mine]

The Atlas 5 is built by Lockheed Martin. This is really their problem, not the Air Force or ULA. In addition, the Air Force has other options, both from Boeing’s Delta rocket family as well as SpaceX’s Falcon 9 rocket. For the government to fund this new engine is nothing more than corporate welfare, at a time when the federal government is swimming in debt and is essentially bankrupt.

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Arianespace and ESA sign contract for three launches

9:53 am

Arianespace and the European Space Agency (ESA) signed a contract on Thursday for the Ariane 5 rocket to launch 12 more of Europe’s Galileo GPS satellites on three launches.

This contract is a perfect example of European pork. Europe’s Galileo system might provide competition to the U.S. GPS and Russian Glonass systems, but I am not sure what additional capabilities it provides that will convince GPS users to switch to it. Instead, building it provides European jobs, while using the Ariane 5 rocket to launch it gives that increasingly uncompetitive rocket some work to do. In fact, this situation really reminds me of the U.S. launch market in the 1990s, when Boeing and Lockheed Martin decided that, rather than compete with Russia and ESA for the launch market, they instead decided to rely entirely on U.S. government contracts, since those contracts didn’t really demand that they reduce their costs significantly to compete.

Europe now appears to be heading down that same road.

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NASA’s Space Launch System searches for a mission

9:26 am

Managers of NASA’s Space Launch System (SLS) are searching for a mission that they can propose and convince Congress to fund.

Any honest read of this article will conclude that this very expensive rocket system is an absurd waste of money. It has no mission now, and will never get one considering the cost. Instead, NASA will spend billions to fly two test flights, both unmanned, and then the money will run out.

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Sierra Nevada abandons its own hybrid engine for Dream Chaser

1:13 am

The competition heats up: Sierra Nevada has decided not to use its own hybrid engine on its Dream Chaser manned shuttle.

With the apparent decision by Virgin Galactic to also abandon this engine, it would appear that hybrid rocket technology is not yet ready for prime time, if ever.

Posted from Spokane, Washington, where Diane and I will be visiting my oldest friend Lloyd and his family for the rest of the week.

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Orbital plans upgrade to Antares

1:00 am

The competition heats up: On its next cargo mission to ISS Orbital Sciences plans on launching an upgraded Antares rocket.

For its third paid cargo mission to station, slated to launch Oct. 21, Orbital will replace the ATK Castor 30B Antares used for its latest launch with an ATK Castor 30XL. The upgrade will allow Cygnus to carry about 2,290 kilograms of cargo to station — an increase of nearly 40 percent by mass, compared with the second mission, according to Orbital’s Aug. 18 press release.

The Castor 30XL is the latest in the Castor 30 series ATK developed specifically as an Antares upper stage. A pair of Antares demonstration launches in 2013, which did not count toward fulfilling the company’s delivery-and-disposal contract with NASA, used the Castor 30A. ATK has lengthened subsequent versions of the motor, squeezing more power out of it by packing it full of more solid fuel.

Like SpaceX, Orbital Sciences is demonstrating the ability here to do operational missions simultaneously with developmental missions.

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Curiosity retreats from Hidden Valley

3:27 pm

Finding its sandy floor slipperier than expected, engineers have backed Curiosity out of Hidden Valley to drill some holes while they reassess the rover’s route.

The rover’s wheels slipped more in Hidden Valley’s sand than the team had expected based on experience with one of the mission’s test rovers driven on sand dunes in California. The valley is about the length of a football field and does not offer any navigable exits other than at the northeastern and southwestern ends. “We need to gain a better understanding of the interaction between the wheels and Martian sand ripples, and Hidden Valley is not a good location for experimenting,” said Curiosity Project Manager Jim Erickson of JPL. …

Curiosity reversed course and drove out of Hidden Valley northeastward. On the way toward gaining a good viewpoint to assess a possible alternative route north of the valley, it passed over the pale paving stones on the ramp again. Where a rover wheel cracked one of the rocks, it exposed bright interior material, possibly from mineral veins.

More and more, the journey to Mount Sharp appears to be increasingly adventurous for the rover.

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Competition with SpaceX forced ULA CEO out

8:59 am

A news story today in Defense News speculates that the competitive pressure from SpaceX is what forced ULA’s CEO to step down.

Changes at the CEO level are usually accompanied by a change in how business is done, said Byron Callan, an analyst with Capital Alpha Partners. “Generally, when you see abrupt leadership changes, there’s an abrupt change of strategic or tactical course needed,” Callan said. “You don’t make those changes unless you see something that needs fast corrective action.”

Caceres said he expects to see layoffs and a streamlining of ULA to find all possible cost savings. “My sense is you’re going to see at ULA a restructuring of some sort, because ultimately they’re going to have to find a way to be a lot more competitive on price,” he said.

This restructuring is entirely the result of the new competition from SpaceX, as repeatedly noted by the article.

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Branson insists he will fly this year

8:54 am

In an interview for USA Today Richard Branson once again repeated his expectation that he will fly in space on SpaceShipTwo before the end of the year.

It sounds like they plan three test flights with their new engine, followed by Branson’s public relations stunt. Even if this plan happens, however, I do not see them ready to fly paying passengers, as they will probably need more test flights to make sure the ship and its engine are truly trustworthy.

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Russia to build new satellite communications cluster

10:06 am

The competition heats up: The Putin government’s newly released draft plan for Russia’s space industry includes the development of a new communications satellite constellation.

In addition to encrypted mobile communications, the Ellips satellites will support air-traffic control and traditional fixed communications. Reflecting its dual (civilian and military) application, the Ellips project would be funded jointly by the Russian space agency, Roskosmos, and by the Russian Ministry of Defense at a price tag of 65.6 billion rubles to develop and deploy the constellation.

The article then goes on to detail at length the problems the Russian communications satellite industry has had for the past two decades, including their inability to build satellites that will last in orbit as long as their competitors.

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Another look at why ULA’s CEO stepped down

9:52 am

Why did ULA’s CEO step down, and did SpaceX or the Atlas 5’s dependence on Russian engines play a part?

Very worthwhile reading, as it suggests that not only is the competition from SpaceX a major factor, so was ULA’s effort to monopolize the military launch industry as well as monopolize its access to the Russian engines, denying their use by Orbital Sciences.

And to this I say, thank god for competition. It always shakes things up in a good way.

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Worldview-3 in orbit

9:30 am

The competition heats up: Worldview-3, launched yesterday, has been successfully activated and can now provide commercial and private customers images of the Earth with resolution comparable to military intelligence satellites.

The sensor package on WorldView-3 will be able to image objects with a ground sample distance of 31 cm (12 in.). “So we can tell you if it’s a truck, SUV or a regular car,” says Kumar Navulur, director of next-generation products at DigitalGlobe. “If there’s a high contrast we can identify features of fine scale,” he adds, giving examples of markings in a parking lot or “a tomato plant in a backyard in Asia.”

Obviously, this has both good and bad possibilities. Nonetheless, its availability increases the value of the space-based industry.

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The flight of gifted engineers from NASA

5:43 pm

Rather than work in NASA, the best young engineers today are increasingly heading to get jobs at private companies like SpaceX and XCOR.

It is a long article, worth reading in its entirety, but this quote will give the essence:

As a NASA engineering co-op student at Johnson Space Center, Hoffman trained in various divisions of the federal space agency to sign on eventually as a civil servant. She graduated from college this year after receiving a generous offer from NASA, doubly prestigious considering the substantial reductions in force hitting Johnson Space Center in recent months. She did have every intention of joining that force — had actually accepted the offer, in fact — when she received an invitation to visit a friend at his new job with rising commercial launch company SpaceX.

Hoffman took him up on the offer, flying out to Los Angeles in the spring for a private tour. Driving up to the SpaceX headquarters, she was struck by how unassuming it was, how small compared to NASA, how plain on the outside and rather like a warehouse.

As she walked through the complex, she was also surprised to find open work areas where NASA would have had endless hallways, offices and desks. Hoffman described SpaceX as resembling a giant workshop, a hive of activity in which employees stood working on nitty-gritty mechanical and electrical engineering. Everything in the shop was bound for space or was related to space. No one sat around talking to friends in the morning, “another level from what you see at NASA,” she said. “They’re very purpose-driven. It looked like every project was getting the attention it deserved.”

Seeing SpaceX in production forced Hoffman to acknowledge NASA might not be the best fit for her. The tour reminded her of the many mentors who had gone into the commercial sector of the space industry in search of better pay and more say in the direction their employers take. She thought back to the attrition she saw firsthand at Johnson Space Center and how understaffed divisions struggled to maintain operations.

At NASA young engineers find that they spend a lot of time with bureaucracy, the pace is slow, their projects often get canceled or delayed, and the creative job satisfaction is poor. At private companies like SpaceX, things are getting built now. With that choice, no wonder the decision to go private is increasingly easy.

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It ain’t gravity holding this asteroid together

1:14 pm

Astronomers have discovered that near Earth asteroid 1950DA is spinning so fast that gravity can’t hold it together. Instead, it is kept whole by cohesive forces called van der Waals forces, predicted but never detected before on an asteroid.

This is the coolest factoid from the article, however:

“We found that 1950 DA is rotating faster than the breakup limit for its density,” said Rozitis. “So if just gravity were holding this rubble pile together, as is generally assumed, it would fly apart. Therefore, interparticle cohesive forces must be holding it together.”

In fact, the rotation is so fast that at its equator, 1950 DA effectively experiences negative gravity. If an astronaut were to attempt to stand on this surface, he or she would fly off into space unless he or she were somehow anchored.

The important take away from this discovery is that it will be very easy to break this kind of asteroid up, turning a large and big threat into a collection of small but harmless rocks.

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Another former SpaceX employee sues

9:09 am

SpaceX has been hit by its second lawsuit in a week from a former employee.

The lawsuit, filed in Los Angeles Superior Court, alleges that SpaceX supervisors impose schedules on their employees that make it impossible for them to take statutorily required rest periods every four hours or first or second meal breaks as required by California law.

I consider this suit a bigger threat to the company than the first. The first suit merely claimed that the company didn’t give its fired employees the 60 day warning as required by law. If they win, they will get some payments, but the company will be able to continue as before.

This second suit, if successfully, could force the company to change its aggressive culture, where employees are expected to work very hard, sometimes 60-80 hour weeks, to make things happen quickly. While those work hours might seem abusive to some, to most of the people working there it is what they want to do. A successful lawsuit here could force the company to literally stop them from working. The conditions then might be more relaxed, but the ability to make progress will be stymied, and the costs for making that progress will go up considerably.

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ULA CEO steps down

4:24 pm

Faced with stiff competition from SpaceX, United Launch Alliance (ULA) announced today a change in leadership.

United Launch Alliance has named a new president and chief executive to replace Michael Gass, who led the Atlas and Delta rocket company since its inception in 2006. Gass will be replaced effective immediately as president and CEO by Tory Bruno, an executive at Lockheed Martin Corp., which formed ULA in December 2006 in a 50-50 joint venture with Boeing Co., ULA said in a statement Tuesday. Gass is retiring at the end of the year, according to ULA.

Despite Gass’s planned retirement, the abrupt nature of his departure has everything to do with the competition from SpaceX, something that every single article about this change at ULA noted.

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NASA admits that it is struggling to meet the 2017 launch date for SLS

11:13 pm

Delays in the construction of Orion’s European-built service module as well as cracks in the spacecraft’s heat shield are threatening the planned 2017 launch date for Orion’s first test flight, unmanned, beyond Earth orbit.

Note that this program, costing anywhere from $10 to $20 billion, is only building a handful of capsules for flying three or four test flights. Beyond that, there is no money.

I have predicted this before, and I will predict it again: SLS will never take any humans anywhere. The cost is too high, the bureaucracy too complex, and the schedule is too slow. It will vanish when the new private companies begin flying humans into space in the next three years.

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Another Rosetta closeup of 67P/C-G

4:15 pm

67P on August 8

The above image is not the most recent daily image from Rosetta, but it is the most interesting of the last three.

It shows the side of the comet nucleus that has not been featured in most images, as the topographical differences between its two sections is not as distinctly highlighted. What is highlighted is the neck that connects the two sections, lighter colored and thus likely made up of less dusty ice.

Also of interest here is the circular features on the larger bottom section. These certainly resemble craters, and are likely remnants of early impacts that are now been corroded away as the nucleus’s ice particles evaporate off the surface. The scientific question here is this: Why are crater features more evident on this side and section of the comet nucleus than on other areas of its surface?

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Test results from NASA saucer Mars landing test

8:09 pm

NASA has released video and test results from the first test flight of its Low-Density Supersonic Decelerator (LDSD), referred by many press outlets as a “flying saucer” because of its shape.

The purpose of the test was to see if the saucer and its parachute would work to slow a vessel down sufficiently in the Martian atmosphere. The parachute tore and failed. The video describes the flight and the failure and how the data from this failure can now be used to modify the parachute for the next two test flights.

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