LIVE: SpaceX Falcon 9/Dragon CRS-2 (SpX-2) LAUNCH and FD-1 UPDATES

[Comga]

Thanks Chris , any news about GNC door ?

I think it had the star-tracker in it

It does.

Actually, a redundant pair of star trackers, along with a pair of lidar units and a pair of thermal imagers.

[hrissan]

Thanks Chris , any news about GNC door ?

I think it had the star-tracker in it

It does.

Actually, a redundant pair of star trackers, along with a pair of lidar units and a pair of thermal imagers.

What about a redundant door?

To be serious, it is interesting that not all systems are redundant on Dragon.
Not only the door, but also the tank pressurization system, which gave such a surprise today.

[mmeijeri]

To be serious, it is interesting that not all systems are redundant on Dragon.
Not only the door, but also the tank pressurization system, which gave such a surprise today.

Do we now have confirmation there is only a single pressurisation system? Because it could also be a design flaw that caused three systems to fail identically. Simonbp suggested freezing as a possible cause.

[Chris Bergin]

We're going to transition into the new live update thread here:

http://forum.nasaspaceflight.com/index.php?topic=31249.0

People were still posting FD-2 updates in here, so locking - please use the above FD2-3 thread.