Tag: spaceflight

SpaceX wins safety design award

4:52 pm

I post this story about SpaceX winning an award for its safety-in-design work mostly to illustrate again that, except for one lone commenter on my webpage, most of the aerospace industry recognizes the generally good work that SpaceX has been doing. Not only do their recognize it, they have found themselves struggling to meet the competitive challenge that SpaceX now represents, an effort that has been all to the good for everyone in the space industry.

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Delta 4 Heavy moved to launchpad for Orion flight

10:09 am

In preparation for a December test flight of the first Orion capsule, the Delta 4 Heavy rocket has been positioned on the launchpad.

The unmanned Dec. 4 mission, known as Exploration Flight Test-1 (EFT-1), is designed to test out Orion’s critical crew-safety systems, such as its thermal-protection gear. During the four-hour flight, the Orion capsule will fly 3,600 miles (5,800 kilometers) from Earth, then come speeding back into the planet’s atmosphere at about 20,000 mph (32,190 km/h) before splashing down softly in the Pacific Ocean, NASA officials said.

Forgive me if I remain decidedly unexcited. I still believe SLS to be an enormous waste of resources that would be better spent onother things.

Posted on the road south of Phoenix.

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Fixing the space junk problem of the new Japanese Epsilon rocket.

9:47 am

The Japanese space agency has now promised to make sure that future launches of its new low cost Epsilon rocket will not leave its upper stages in orbit as space junk.

Epsilon’s first flight, which was a success, left two large objects — the rocket’s upper stage and a smaller post-boost stage — in an orbit with a perigee of some 800 kilometers, meaning neither will fall into the atmosphere for a century or longer. In the meantime, they will add to the population of orbiting garbage that poses a threat to active satellites traversing this orbit.

Japan has signed international agreements requiring them to not create space junk, so on future launches they are promising to make sure the upper stages are released in low enough orbits that they will quickly decay and burn up in the atmosphere.

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A decision in November on Orbital’s reliance on Russian engines in Antares

9:38 am

The competition heats up: Orbital Sciences has announced that it will make a decision in November on replacing the Russian rocket engine that it uses in its Antares commercial rocket.

In a presentation at the 65th International Astronautical Congress here, Orbital Executive Vice President Frank Culbertson said the engine decision is linked to the company’s proposal for NASA’s Commercial Resupply Services (CRS)2 competition. NASA issued the request for proposals for CRS2 on Sept. 26, with responses due Nov. 14. “We’ll make sure we’ll have a decision on that before we submit the proposal,” Culbertson said when asked about the status of the engine decision.

Orbital has been weighing for several months a replacement for the AJ-26 engines that Antares currently uses. Those engines, provided by Aerojet Rocketdyne, are refurbished versions of Soviet-era NK-33 engines originally designed for the N-1 lunar rocket developed in the 1960s.

The company is considering several proposals, including one from ATK, which is in the process of merging with Orbital at this very moment.

The article also notes that Orbital recognizes that the use of Russian engines will likely work against them in the competition to win the next ISS cargo contract, and that if they don’t have a plan to replace those engines it is quite possible that NASA will go with a different company, such as Sierra Nevada, when it awards that contract.

As I said already, oh how I love competition.

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More quality control problems in Russia

9:29 am

The investigation into the failure of a Russian Soyuz rocket to place two European Galileo GPS satellites into the correct orbit has found that it was caused by the faulty installation of fuel lines on the Fregat upper stage.

The failure was as simple as clamping together a cold helium line with the hydrazine fuel line, causing the hydrazine to freeze long enough to upset the Fregat stage’s orientation and cause the two satellites’ release into an orbit that is both too low and in the wrong inclination, officials said. One official said the Euro-Russian board of inquiry into the failure discovered that one in four Fregat upper stages at prime contractor Moscow-based NPO Lavochkin had the same faulty installation. ,,,,

Government and officials said the commission is debating how to proceed now that it knows that, as expected, the Fregat failure was not one of design, but of assembly and quality control. [emphasis mine]

In other words, 1 in 4 Fregat upper stations were routinely assembled improperly and no one noticed. The investigation also found that this assembly problem had existed on several past launches but because of the orbital requirements it had fortunately not caused any problems.

I want to emphasize that these kind of sloppy assembly issues have been occurring at a number of different Russian factories and different Russian companies. It seems to be systemic to the entire Russian aerospace industry, and it also appears to be getting worse.

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Stratolaunch and Sierra Nevada team up

9:14 am

The competition heats up: Sierra Nevada and Stratolaunch have signed an agreement to use a 3/4 scale version of Dream Chaser as the manned vehicle launched by Stratolaunch’s giant first stage airplane.

The Dream Chaser is a reusable, lifting-body spacecraft capable of crewed or autonomous flight. Dream Chaser is the only lifting-body spacecraft capable of a runway landing, anywhere in the world. Stratolaunch Systems is a Paul G. Allen project dedicated to developing an air-launch system that will revolutionize space transportation by providing orbital access to space at lower costs, with greater safety and more flexibility.

As designed, the Dream Chaser-Stratolauncher human spaceflight system can carry a crew of three astronauts to LEO destinations. This versatile system can also be tailored for un-crewed space missions, including science missions, light cargo transportation or suborbital point-to-point transportation. The scaled crewed spacecraft design is based on SNC’s full-scale Dream Chaser vehicle which, for the past four years, has undergone development and flight tests as part of NASA’s Commercial Crew Program.

More information is expected to be released about this partnership at the International Astronautical Congress taking place in Toronto this week.

Summing up, however, this partnership is a blatant challenge to NASA’s Orion/SLS system as well as its its commercial crew capsules built by Boeing and SpaceX. Sierra Nevada and Stratolaunch are essentially telling the world that they are going to build their own manned reusable vehicle, and that it is going to be better than anyone else’s.

Oh how I love competition. It sure makes things happen quickly.

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Dream Chaser still alive!

9:22 am

The competition heats up: Sierra Nevada (SNC) has announced a new effort to gain international customers for its Dream Chaser manned spacecraft.

From the press release:

SNC’s Global Project offers clients across the globe access to low Earth orbit (LEO) without the time, resources and financial burden of developing the necessary capabilities or infrastructure to support a mature human spaceflight program. The Global Project utilizes the Dream Chaser spacecraft as a baseline vehicle which, in turn, can be customized by the client for an array of missions to support government, commercial, academic and international goals. The individual mission customization of the Global Project can be applied to both crewed and uncrewed variants for a single dedicated mission or suite of missions.

This is excellent news, as it tells us that the company is not giving up on the spacecraft, and intends to push hard to finish it. Not only are they working make it a viable product to many customers and thus obtain the construction financing to build it outside of NASA’s manned program, they also appear ready to bid on NASA’s second round of cargo launches, using Dream Chaser as an unmanned cargo freighter to ISS.

In fact, I would not be surprised if NASA chooses Dream Chaser over Dragon for that second round of cargo deliveries. Dragon is slated for the manned flights, so the agency will need another vehicle to replace it. Why not give the contract to Sierra Nevada, thus providing NASA with two manned vehicles and three cargo vehicles, all capable of accessing the station.

All in all, this increasingly looks like a win-win situation for everyone.

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Congress demands American rocket engines for military launches

9:11 am

In a letter written by a bi-partisan group of California legislators, Congress is pressuring the Air Force to replace the Russian engines on its Atlas rocket, and do to it competitively.

“While it is important that we invest in new technology, the problem of Russian reliance calls for an immediate solution,” states the Sept. 22 letter, which was signed by 32 of California’s 53 members of the U.S. House of Representatives. … In the letter, the House members said they are “troubled by the Department’s willingness to continue sourcing this engine from the Russian government, apparently in the hope that the situation with Russia does not deteriorate further, and that Russia chooses to continue supporting U.S. military launches — while it ignores American sources of engine technology. “We strongly encourage you to recognize that the United States — and specifically, California — today produces technology that exceeds any capability offered by Russian systems,” the letter said. “It is time for the Department to look to these existing U.S. engine manufacturers and launch vehicle providers.”

This letter suggests to me that SpaceX has won its battle with the Air Force and is going to get some launch contracts. It also suggests that ULA and Blue Origin will likely be able to get the funding from Congress to finance the design and construction of the replacement engine they have jointly proposed.

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Washcloth delays SLS engine tests

8:59 am

The testing of an engine for the giant SLS rocket will be delayed because engineers have found the remains of a washcloth in the ducts of the test stand at Stennis Space Center.

The investigation found the fibers belong to a cotton shop rag from a weld shop that had been involved with working on the LOX duct ID surface during manufacture. The roughened surface (of the duct) was where the fibers were observed to be hanging up on.

The investigation team reported that, under microscope inspection, a piece of the run duct stock showed metallic particles loosely adhered to the ID surface and embedded in the ‘machining’ groves. Several were easily dislodged and identified as ID surface material. “A tape sample was pulled from the same stock (after an identical cleaning process) and produced a rather large quantity of particles. This is an unacceptable condition and it was agreed that the entire run duct will need to be replaced or reworked (~30-ft of pipe),” added the investigation notes.

Replacing the duct will cause a several month delay in the test program. Fortunately for NASA, they have some wiggle room (for the moment), since the entire SLS schedule has already slipped a year to 2018.

Nonetheless, do not be surprised if this is only the first of many further delays.

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Mangalyaan’s first global images of Mars

8:49 am

Indian engineers have released the first global images taken by Mangalyaan.

As MOM’s orbit is highly elliptical, reaching from 262 miles (periareon — closest approach) to 47,841 miles (apoareon — farthest extent), we can expect a lot more global views from Mars’ newest satellite, providing us with a beautiful global perspective of a planet that currently has seven robotic missions (from three different space agencies) exploring it.

These images suggest that a dust storm is beginning to stir on the Martian surface.

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Something keeps coming and going in a sea on Titan

11:14 am

Cassini images taken in 2007, 2013, and 2014 of one of Titan’s largest hydrocarbon seas find that a mysterious feature there keeps appearing and disappearing.

The mysterious feature, which appears bright in radar images against the dark background of the liquid sea, was first spotted during Cassini’s July 2013 Titan flyby. Previous observations showed no sign of bright features in that part of Ligeia Mare. Scientists were perplexed to find the feature had vanished when they looked again, over several months, with low-resolution radar and Cassini’s infrared imager. This led some team members to suggest it might have been a transient feature. But during Cassini’s flyby on August 21, 2014, the feature was again visible, and its appearance had changed during the 11 months since it was last seen.

Scientists on the radar team are confident that the feature is not an artifact, or flaw, in their data, which would have been one of the simplest explanations. They also do not see evidence that its appearance results from evaporation in the sea, as the overall shoreline of Ligeia Mare has not changed noticeably. The team has suggested the feature could be surface waves, rising bubbles, floating solids, solids suspended just below the surface, or perhaps something more exotic.

That the seasons are slowly changing on Titan is probably contributing to the transient nature of this feature.

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Sierra Nevada protests NASA manned spacecraft contact award

5:47 pm

The competition heats up: Sierra Nevada has formally protested NASA’s decision to award Boeing and SpaceX manned spacecraft contracts.

The company said late Friday that its bid in the NASA Commercial Crew Transportation Capability (CCTCap) was $900 million less than the bid submitted by Boeing, which won a contract worth as much as $4.2 billion to complete development, test fly and operate its CST-100 crew capsule. At the same time, SNC said, its proposal was “near equivalent [in] technical and past performance” source-selection scoring.

“[T]he official NASA solicitation for the CCtCap contract prioritized price as the primary evaluation criteria for the proposals, setting it equal to the combined value of the other two primary evaluation criteria: mission suitability and past performance,” the company stated. “SNC’s Dream Chaser proposal was the second lowest priced proposal in the CCtCap competition.”

In other words, they are challenging NASA’s decision to pick Boeing over them, as their proposal was far cheaper.

We all know that Boeing got the contract as much for its political clout as for its technical expertise. NASA wanted to make sure that members of Congress who promote the Boeing jobs in their districts would have nothing to complain about. Whether Sierra Nevada can get the government to look past that political clout is very doubtful, though I think I support them whole-heartedly in their effort.

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India: Space success vs red tape?

8:43 am

Even as India celebrates the success of its Mars orbiter Mangalyaan, its aerospace industry complains of red tape and a slow-moving bureaucracy.

Between 2007 and 2012, ISRO accomplished about half of its planned 60 missions, government data showed. The government cited “development complexity” as the reason for the delay in some missions. Between 2012 and 2017 the target is 58 missions. The agency has completed 17 missions so far, and ISRO did not say why the number remained low. Some company executives and experts do not see that changing any time soon, with the absence of heavy rocket launchers, too few launch facilities and bureaucratic delays hampering growth.

I could also say that the battle is now joined between India’s military-industrial complex and private enterprise. With a government now in power that claims to be pro-business, we shall see where this battle leads.

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Soyuz docks successfully with ISS

12:54 am

Despite the failure of one solar array to deploy, a Soyuz capsule carrying three astronauts successfully docked with ISS today.

The solar array issue, still unresolved, needs to be figured out, as this Soyuz spacecraft must serve as one of ISS’s lifeboats for the next few months. Without that array the spacecraft will have limited power, and will definitely not be considered the best way home should something go wrong on the station.

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A solar panel on manned Soyuz fails to deploy

5:00 pm

One of the two solar panels on the manned Soyuz capsule transporting three astronauts to ISS has failed to deploy.

“According to our data, one of the solar panels is still unable to unfold for reasons unknown. But preliminary data suggest that it will not impede [the spacecraft] from docking to the ISS. They have carried out a maneuver just now which involved all of the spacecraft’s engines, all systems are running smoothly, the crew is OK,” the source in the agency said.

Because they are flying the fast route to ISS a shortage of power is not as critical. However, this failure once again indicates the increasing quality control problems faced by the Russian aerospace industry. In past decades these problems simply did not happen, especially on their manned missions. Now they are happening with increasing frequency.

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Mangalyaan sends its first Mars pictures

9:15 am

Mangalyaan's first image of Mars

Indian engineers have posted Mangalyaan’s first image on the spacecraft’s Facebook and Twitter accounts, as well as presented the photo to their nation’s leader.

My first reaction when I looked at the image above was an immediate flashback to 1969, when the American probes Mariner 6 and Mariner 7 flew past Mars, taking images of its cratered southern hemisphere and thus making scientists think for several years that Mars was not much different than the Moon. The Indian image is of about the same quality, and shows lots of moon-like craters.

Image if this was the first close-up image of Mars anyone had ever seen. It would be very easy to assume that Mars is pockmarked with craters everywhere, just like the Moon.

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Europe struggles to contain costs on its next generation rocket

9:02 am

New budget estimates for replacing Arianespace’s Ariane 5 rocket now say that they will have to include the construction of an entirely new launchpad, raising costs.

Nonetheless, Europe is trying to keep its per launch cost down and competitive.

ESA and the Airbus-Safran joint venture that proposes to manage Ariane development also floated per-launch costs that were lower than previous estimates. The lighter-version Ariane 62, with two solid-rocket boosters, could be built for as little as 65 million euros assuming a nine-per-year launch rhythm, officials said. The heavier Ariane 64, intended mainly for the commercial market and capable of carrying two satellites weighing a combined 11,000 kilograms into geostationary transfer orbit, could be built for 85 million euros each, again assuming a nine-per-year production rate.

These numbers are tiny compared to what they have charged in the past, and though higher than SpaceX’s, are within a price range that will keep them in business, assuming they can achieve them.

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Why India’s Mars probe was so cheap

5:32 pm

Alan Boyle has some interesting thoughts on why it cost India so little, less than the budget of the movie Gravity, to build and send its probe Mangalyaan to Mars.

The $74 million Mars Orbiter Mission, also known by the acronym MOM or the Hindi word Mangalyaan (“Mars-Craft”), didn’t just cost less than the $100 million Hollywood blockbuster starring Sandra Bullock. The price tag is a mere one-ninth of the cost of NASA’s $671 million Maven mission, which also put its spacecraft into Mars orbit this week. The differential definitely hints at a new paradigm for space exploration — one that’s taking hold not only in Bangalore, but around the world. At the same time, it hints at the dramatically different objectives for MOM and Maven, and the dramatically different environments in which those missions took shape.

Read it all. It gives us a hint at the future of space exploration.

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