Tag: spaceflight

The next Proton and Angara launches

9:00 am

The competition heats up: Russia has set September 28 as the next launch date for its troubled Proton rocket.

The most interesting detail gleaned from this article however is this:

The Proton-M carrier rocket previously launched on May 16 from Baikonur space center collided with communications satellite Express АМ4R and burned up in the atmosphere above China, leaving Russia without its most powerful telecommunications satellite.

Previous reports had not been very clear about the causes of the May launch failure. All they would say is that “a failed bearing in the steering engine’s turbo pump” had caused the failure about nine minutes into the flight. This report suggests that this failure occurred after separation of the payload and that it then caused the upper stage to collide with the satellite.

Russia is also about to ship its new Angara 5 rocket to the launch site for a planned December launch. This will be the first launch of the Angara configuration that is expected to replace the Proton rocket, and is expected to place a dummy payload into geosynchronous orbit.
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Falcon 9 launch

8:41 am

The competition heats up: SpaceX’s Falcon 9 has successfully launched six Orbcomm commercial satellites into orbit.

The six satellites still must be deployed. We will know if this is successful sometime in the next hour or so. Also, no news yet on SpaceX’s effort to recover the rocket’s first stage after a soft splashdown in the ocean.

Update: All 6 Orbcomm satellites have successfully deployed.

Update 2: From Elon Musk as to the first stage recovery: “Rocket booster reentry, landing burn & leg deploy were good, but lost hull integrity right after splashdown (aka kaboom).”

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Cygnus launch

9:23 am

All is go for a 12:52 pm launch of Cygnus’s second operational cargo flight to ISS.

If you live on the east coast of the U.S. you should be able to see some part of this launch when it happens.

Cygnus has lifted off.

The main engine has cut off and the first stage has successfully separated.

The second stage has ignited successfully. It has now completed its burn and has separated from the spacecraft. Cygnus is in orbit.

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Curiosity’s journey continues

9:00 am

After more than a full Martian year, Curiosity has finally traveled beyond the area of its initial landing zone.

The 1-ton Curiosity rover has now cruised out of its landing ellipse, the area — about 4 miles wide by 12 miles long (7 by 20 kilometers) — regarded as safe ground for its August 2012 touchdown within Mars’ huge Gale Crater, NASA officials said.

The interesting factoid from this article is how much smaller this landing zone was for Curiosity compared to all other previous landers, illustrating how the technology has advanced during the last four decades since Viking.

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Venus Express is coming up for less air

11:31 pm

After spending a month dropping down deep into Venus’s atmosphere, engineers are now raising Venus Express’s orbit.

Thus routine science operations concluded on 15 May, and the spacecraft’s altitude was allowed to drop naturally from the effect of gravity, culminating in a month ‘surfing’ between 131 km and 135 km above the surface. Additional small thruster burns were used to drop the spacecraft to lower altitudes, reaching 130.2 km earlier this week. Tomorrow, it is expected to dip to 129.1 km.

After eight years orbiting Venus, the mission is finally ending. They will use the spacecraft’s thrusters to lift it back up to almost 500 kilometers, where they will then allow its orbit to naturally decay, eventually ending the mission when it burns up in the atmosphere. There is also the chance they will run out of fuel during these last burns, ending the mission slightly sooner.

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Air Force certifies Falcon 9

11:21 pm

The competition heats up: The Air Force today certified that SpaceX’s Falcon 9 rocket had completed three successful flights.

This certification is a preliminary okay before the official certification. What it means is that the Air Force is agreeing that the Falcon 9 is capable of launching its satellites, which also means that the official certification is almost certain.

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India’s space program gets a huge budget boost

9:16 am

The competition heats up: The new budget of India’s new conservative government under Narendra Modi has given its space program a 50 percent increase.

It appears that there were increases across the board, including a gigantic increase for their GSLV rocket as well as their manned program.

It also appears that Modi is following in the path of George Bush, at least when it comes to space. He might be a conservative, pro private enterprise and anti-big government, but his approach to building a space industry is decidedly Soviet in style, pumping funds into government agencies so that they can build the rockets and spacecraft. For the moment at least, private companies will be the servants to India’s government space program, not the masters.

In the U.S. and Russia this approach worked for the first generation of rockets and spacecraft, but then ended up a lead weight for later generations. I suspect we shall see the same history play out in India.

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Russian Soyuz launches commercial satellites for Arianespace

9:01 am

The competition heats up: A Soyuz rocket successfully launched four communications satellites from French Guiana yesterday.

I know that I repeatedly pound Arianespace for its high costs and lack of profits, but anyone who thinks this European company, in partnership with the Russians, is going to let its competition grab its customers easily is in for a surprise. They are going to fight back, and have the resources to do it.

The battle is on! It should be a lot of fun to watch over the next decade.

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ISEE-3 might still be saved

3:39 pm

It ain’t dead yet: The private group trying to resurrect ISEE-3 has not yet given up.

[T]he reboot team, led by editor Keith Cowing and entrepreneur Dennis Wingo, CEO of California-based Skycorp Incorporated, isn’t quite ready to give up. One of the project volunteers has suggested that perhaps the nitrogen isn’t actually gone. It may in fact still be there, but dissolved in with the hydrazine.

If that’s the case, Wingo says, ISEE-3 could potentially repressurize the propellant by powering up the tank heaters, raising the temperature up perhaps 10 degrees from the roughly 25 degrees C where it stands now. “If [the idea] has any merit, then we could turn the heaters on and drive at least some of the nitrogen out of solution. That would give us more pressure that just heating the tanks themselves,” Wingo says. “It’s not desperation,” he adds. “There is some good physics behind this.”

Their big problem is that they need to know more about how the nitrogen was stored on the spacecraft. They are asking for help from anyone who is willing to research the problem.

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Bigelow Aerospace hiring

7:48 pm

The competition heats up: Bigelow Aerospace hired two former NASA astronauts today as part of a broader expansion of the company in anticipation of .the completion of its first two private space modules in 2017.

Bigelow said the smallest space station his company plans to fly will require two BA330 modules, each of which has 330 cubic meters of internal space. The company expects to finish building the first two BA330s by 2017, Bigelow said.

Ham and Zamka are former military aviators who have piloted and commanded space shuttle missions. Their NASA and military credentials are part of the appeal for Bigelow, who plans to put both former space fliers to work as recruiters. “I would like to see us have half a dozen astronauts onboard by the end of the year,” Bigelow said.

Each Bigelow Aerospace space station would require about a dozen astronauts, including orbital, ground and backup personnel. The 660-cubic-foot stations would host four paying clients, who would be assisted by three company astronauts responsible for day-to-day maintenance, Bigelow said. Initially, clients and crews would cycle in and out of the stations in 90-day shifts, Bigelow said. Eventually, the company hopes to shorten that cycle to 60 days.

The company had laid off many of its workers several years ago and was essential dormant, waiting for the development of some sort of affordable commercial manned spacecraft capability. It now appears they are expecting SpaceX, Boeing, or Sierra Nevada to succeed in providing this service in the next few years.

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ISEE-3 effort aborted?

4:07 pm

The engineers trying to resurrect ISEE-3 think their engine burn yesterday ended prematurely because the spacecraft’s supply of nitrogen needed for such a burn has been depleted.

They have still not given up hope, but it sounds like it is increasingly unlikely that they will be able to shift the spacecraft’s orbit as needed.

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An update on ISEE-3’s resurrection

9:45 am

The engineers trying to resurrect the 1980s ISEE-3 spacecraft have posted an update describing what happened with yesterday’s partly successful engine burn.

The bottom line:

Thruster firings were planned to done in groupings – or “segments” – of 63 firings per segment. The first chart is annotated to show the three firing attempts. The first segment was full duration but only partially successful. The second and third attempts failed. Possible causes (under investigation) include valve malfunction and fuel supply issues.

This doesn’t sound hopeful, but stay tuned as they continue to assess the situation.

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Angara launches

9:20 am

The competition heats up: The first test launch today of Russia’s new Angara rocket was a success, according to Russian reports.

According to the Russian Ministry of Defense, the first stage of the rocket separated four minutes after the liftoff, while the vehicle was flying in the projected area over the southern Barents Sea and in the range of the Russian ground control network. The main engine of the second stage was shut down as planned at 16:08 Moscow Time and the stage along with a payload mockup fell in the projected area of the Kura impact range on the Kamchatka Peninsula 5,700 kilometers from the launch site, 21 minutes after liftoff.

Russia will obviously have to conduct further test launches, including the first orbital test, before it declares Angara operational. Nonetheless, this success gets them closer to replacing the Proton and Zenit rockets and allowing them to decrease their reliance on rockets, spaceports, and components under the control of independent countries that were formerly part of the Soviet Union.

More details about the Angara rocket family can also be found here.

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ISEE-3 engine burn

9:33 pm

The major course correction burn for ISEE-3 was only partially successful today.

We managed to conduct the first segment (composed of 63 thruster pulses) but encountered problems with the second and halted the remainder of segment firings. Today’s burn was supposed to be 7.32987 m/s. We’re looking at data and formulating a plan for tomorrow. Our window tomorrow (Wednesday) at Arecibo opens at 12:39 pm EDT and extends to 3:26 pm EDT.

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Russia to phase out use of Ukrainian-built Soyuz rockets

9:09 am

As part of a major upgrade of its Soyuz rocket family, Russia is also ending its partnership with Ukraine in building those rockets.

The older Soyuz rockets rely on a Ukrainian control system — a relic of the rocket family’s Soviet heritage that in the aftermath of Russia seizure of Crimea from Ukraine in March looks like a threat to Russia’s space program. The rockets are based on the same core design that launched Sputnik and Yury Gagarin into space at the dawn of the space age. “The Soyuz-U and Soyuz-FG control systems are analog [systems] made in Ukraine,” Alexander Kirilin, CEO of the Progress Rocket and Space Center in the Volga city of Samara told Interfax on Monday.

However, the Soyuz 2 rockets use a Russian-made digital control system. Aside from further moving Russia’s space industry away from its reliance on Ukrainian components, the digital control system allows the rockets to handle a wider variety of payloads — making the tried-and-tested Russian rocket more versatile than ever before.

It is Russia’s plan to complete the transition to the new wholly Russian Soyuz 2 rockets for ISS missions within the next three years.

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ISEE-3 engine burn tomorrow

3:46 pm

The private effort to resurrect the 1970’s sun-observing space probe ISEE-3’s will attempt its first full engine burn on July 8.

They hope to get the spacecraft back into one of the Earth-Sun Lagrangian points where it can be controlled reliably from Earth and can thus resume its study the solar wind, as originally designed. They have most of July to make the burn that will shift the orbit appropriately, so if this first attempt fails they can still make it happen.

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Buran moved to new exhibition location

8:53 am

After sitting in Gorky Park since 1995, the prototype of Russia’s space shuttle, Buran, was moved this past weekend to Moscow’s official outdoor exhibition center.

Back in 2003, when I was in Moscow interviewing people for Leaving Earth, my apartment was within walking distance of Gorky Park. I went over there to take a look. You could get to within a few feet of the prototype, which was sitting with no display signs or security other than a simple fence. It looked quite dilapidated (I would post the photographs I took but this was the last time I used my film camera, and they are all slides.)

The article above has some nice details describing the history of Buran, and why it only flew once. Definitely worth reading.

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Problems with the European Gaia space telescope

7:43 pm

Shades of Hubble: The first data from Europe’s Gaia space telescope, launched to map a billion Milky Way stars, will be delayed 9 months while engineers grapple with several problems.

Gaia managers started taking test images early this year, but soon noticed three issues. For one, more light than anticipated is bending around the 10-metre sunshield and entering the telescope.

Small amounts of water trapped in the spacecraft before launch are being released now that the telescope is in the vacuum of space, and more ice than calculated is accumulating on the telescope’s mirrors. In addition, the telescope itself is expanding and contracting by a few dozen nanometres more than expected because of thermal variations.

Mission managers say the number of stars detected will remain the same even if these complications remain untreated, but the accuracy in measurements of the fainter stars will suffer.

Unlike Hubble, however, there is no way to send a shuttle and a team of astronauts to Gaia to fix it. And it sounds like these issues will have an impact on the telescope’s abilities to gather its intended data.

This story raises my hackles for another reason. Gaia was a very technically challenging space telescope to build, but it was far easier and less cutting edge than the James Webb Space Telescope. It also cost far less. What will happen when Webb gets launched later this decade? How likely is it to have similar issues? Based on a story I just completed for Sky & Telescope on the difficulties of building ground-based telescopes, I’d say Webb is very likely to have similar problems, with no way to fix them. The American astronomy community could then be faced with the loss of two decades of research because they had put all the eggs into Webb’s basket, and thus had no money to build anything else.

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Angara to fly July 9?

7:32 pm

The first test flight of Russia’s new Angara rocket is now tentatively scheduled for July 9.

The story confirms that the problem was a faulty valve, which it appears they can replace at the spaceport, rather than return the rocket to the manufacturer. The story also had this line, which tells us that Russia is still struggling with quality control problems: “The valve’s malfunctioning was a result of sloppy assembly.”

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Space junk damages ISS coolant radiator?

9:09 am

According to the Russian Interfax news agency, a piece of space junk has hit a coolant radiator on the U.S. portion of ISS.

The source says that no coolant has escaped from the system and that NASA engineers are analyzing images to assess the damage.

Readers should be aware that I have tried without success to find the NASA website the story claims is the source for this information. Moreover, this story is reported nowhere in the U.S. press, and it is strange for a NASA website to report something like this and it not be quickly picked up by the U.S. press.

Thus, I am not entirely convinced yet that this story is accurate.

Update: a commenter below has provided this link to a subsequent post at nasaspaceflight about the impact.

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ISEE-3 fires its thrusters for the first time since 1987.

4:57 pm

The private team resurrecting the 1970s space probe ISEE-3 successfully fired its thrusters for the first time since 1987.

It took several attempts and days to perform the roll maneuver because ISEE-3 was not responding to test commands. But this time, controllers got in touch. They increased the roll rate from 19.16 revolutions per minute to 19.76 RPM, putting it within mission specifications for trajectory corrections.

The spacecraft is now prepped for the big burn that will change its trajectory.

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Telescope teamwork produces spectacular galaxy image

11:55 am

M106

Combining images from a host of space and ground-based telescopes, astronomers have created a spectacular image of the galaxy M106.

This galactic fireworks display is taking place in NGC 4258 (also known as M106), a spiral galaxy like the Milky Way. This galaxy is famous, however, for something that our Galaxy doesn’t have – two extra spiral arms that glow in X-ray, optical, and radio light. These features, or anomalous arms, are not aligned with the plane of the galaxy, but instead intersect with it.

The anomalous arms are seen in this new composite image of NGC 4258, where X-rays from NASA’s Chandra X-ray Observatory are blue, radio data from the NSF’s Karl Jansky Very Large Array are purple, optical data from NASA’s Hubble Space Telescope are yellow and blue, and infrared data from NASA’s Spitzer Space Telescope are red.

A new study of these anomalous arms made with Spitzer shows that shock waves, similar to sonic booms from supersonic planes, are heating large amounts of gas – equivalent to about 10 million Suns. What is generating these shock waves? Radio data shows that the supermassive black hole at the center of NGC 4258 is producing powerful jets of high-energy particles. Researchers thinkthat these jets strike the disk of the galaxy and generate shock waves. These shock waves, in turn, heat some of the gas – composed mainly of hydrogen molecules – to thousands of degrees.

The astronomers also used the Herschel Space Observatory to confirm the data from Spitzer.

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