Tag: ISS

The second phase of NASA’s robotic refueling demo on ISS has successfully proven that a robot can remove a satellite fuel cap not designed for refueling.

9:19 am

The second phase of NASA’s robotic refueling demo on ISS has successfully proven that a robot can remove a satellite fuel cap not designed for refueling.

The fuel cap design is a duplicate of that used by several climate research satellites presently in orbit. These satellites were not designed to be refueled, but if they could be refueled, their usefulness in orbit could be doubled, even tripled. This test is intended to demonstrate that a robot could refuel them.

The last phase of this robotic demo will take place in August, when the robots will attempt to pump a simulated fuel into the demo satellite.

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Falcon 9 has cleared the tower

12:46 am

Falcon 9 has cleared the tower and is “looking good.”

First stage has completed its job and has been released. The second stage is firing as planned.

Dragon has separated from the second stage and is now in orbit. Now comes the real test of this mission: Can Dragon maneuver and rendezvous with ISS?

The best moment for the entire launch sequence was when Dragon’s solar arrays deployed. The camera link was still working, so that everyone could see it. When the arrays locked open, there was a gigantic roar from the crowd of people watching at SpaceX’s mission control. Dragon was in orbit and operational!

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The countdown has begun

9:37 pm

Tonight’s Falcon 9 launch: The countdown has begun, and the weather conditions have improved.

SpaceX will begin its own webcast at 3 am (Eastern), which is midnight here in Arizona.

An aside: The ashes of actor James Doohan, who played Scotty on the 1960s television show Star Trek, will be among 308 other cremated remains launched into space by Falcon 9 tonight. As one commenter for the above article noted quite appropriately,

You haven’t really covered any of the important questions here.

i.e. Are there enough dilithium crystals in the engine room to get Scotty up there? And are they using photon torpedoes to blast him out into space? And when they launch, will someone say, “Take her out, Mr. Sulu. Warp factor one.”?

Godspeed, Scotty old bean.

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SpaceX has reported that they have found the cause of the Falcon 9 launch abort this morning.

4:46 pm

In an email update, SpaceX reports that they have found the cause of the Falcon 9 launch abort this morning.

During rigorous inspections of the engine, SpaceX engineers discovered a faulty check valve on the Merlin engine. We are now in the process of replacing the failed valve. Those repairs should be complete tonight. We will continue to review data on Sunday. If things look good, we will be ready to attempt to launch on Tuesday, May 22nd at 3:44 AM Eastern.

If this is true, than this entire exercise is an unqualified success and illustrates a certain robustness to SpaceX’s engineering on Falcon 9. Their control computer during the launch process spotted the problem before it caused a complete loss of the vehicle and payload. They can now locate the problem, fix it, and proceed with launch.

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In closing down its ATV cargo freighter assembly line, Europe considers its next manned space project.

9:49 am

In closing down its ATV cargo freighter assembly line, Europe considers its next manned space project.

ESA and NASA have been discussing how ESA might compensate NASA for Europe’s 8.3 percent share of the international space station’s future operating charges. Until about 2017, the agency is repaying NASA, as the station’s general contractor, through launches of European Automated Transfer Vehicle (ATV) cargo ships to the station. But with the station partners now all but committed to operating the station at least through 2020, ESA is searching for another “barter element” to succeed ATV.

NASA has said a propulsion module for the Orion Multi-Purpose Crew Vehicle would fill ESA’s obligations to NASA, which have been estimated at about 450 million euros ($600 million) over three years.

But several ESA members, notably France and Italy, have argued that the Orion module, which would use ATV-derived technologies, does not provide sufficient technology interest or public impact. Instead, these governments have proposed development of a vehicle that would perform multiple tasks in low Earth orbit, including debris removal.

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SpaceX has delayed the launch of its Dragon test mission to ISS, with the launch now scheduled sometime between May 3 and May 7.

9:09 pm

SpaceX has delayed the launch of its Dragon test mission to ISS, with the launch now scheduled sometime between May 3 and May 7.

“After reviewing our recent progress, it was clear that we needed more time to finish hardware-in-the-loop testing and properly review and follow up on all data,” SpaceX spokeswoman Kirstin Brost Grantham wrote in an email. “While it is still possible that we could launch on May 3rd, it would be wise to add a few more days of margin in case things take longer than expected. As a result, our launch is likely to be pushed back by one week, pending coordination with NASA.”

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