Tag: commercial

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 reboot team has a solution

8:51 am

The private group trying to resurrect ISEE-3 has come up with a plan of action to get its engine working.

We spent all day yesterday with space propulsion experts. We have identified a series of options including hydrazine tank heating and a long series of pulse attempts to (possibly) clear the lines.

They have not yet said when they will try this, but stay tuned.

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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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LightSail to launch on a Falcon Heavy

9:57 am

The Planetary Society announced today that its solar sail experiment, LightSail, will be launched in 2016 on a Falcon Heavy.

It will be a secondary payload on what might be one of Falcon Heavy’s early demo flights. They also say the launch date is scheduled for April 2016, but since the rocket has not yet been tested I wouldn’t take that date too seriously.

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The effort to resurrect ISEE-3’s is over

9:42 am

The private effort to resurrect the 1980s research probe ISEE-3 has been stymied by a non-working propulsion system.

Before the July 9 attempt, the ISEE-3 Reboot Project thought it had a chance of completing its planned trajectory correction maneuver. The spacecraft’s small hydrazine thrusters were spun up July 3, and systems appeared nominal, Cowing said. On July 8, the spacecraft even managed to perform one of the six multipulse burns that would have set it up for a return to the orbit into which it was launched in 1978.

But further attempts to activate the thrusters July 8 proved unsuccessful, as were all attempts the following day. After eliminating a malfunctioning valve as the cause of the problem, the ISEE-3 Reboot Project was forced to conclude that the satellite’s hydrazine fuel simply was not being pushed through its plumbing at the right pressure to conduct a burn.

The spacecraft is in science mode and will gather data as long as it is in communication range, which will only be for another three months.

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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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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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