Author Topic: LIVE: SpaceX Falcon 1 Launch 5 (RazakSat) - July 13/14 (Read 361282 times)

braddock · « **Reply #700 on:** 07/14/2009 04:31 am »

Will it take time for them to verify the final orbit? Does that require multiple observations, or is it instantaneous?

NUAETIUS · « **Reply #701 on:** 07/14/2009 04:33 am »

They had final orbital information very quickly on flight 4.

Chandonn · « **Reply #702 on:** 07/14/2009 04:33 am »

Other news sites reporting that the burn "should have" taken place and the spacecraft "should have" separated by now as the vehicle "should" be in range of the ground stations in the Atlantic by now... We'll (as usual) have actual confirmation here first, I'll wager!

Antares · « **Reply #703 on:** 07/14/2009 04:34 am »

Quote from: Nascent Ascent on 07/14/2009 04:31 am

What is the purpose of the stiffening band and why is it jettisoned?

1st stage loads, and it's unneeded during second stage flight. Same as RL10B-2

Nate_Trost · « **Reply #704 on:** 07/14/2009 04:34 am »

Just looked at the flight 4 video, it was a bit hard to tell with the video breakup, but SECO on flight 5 looks like at *most* 3-4 seconds more than flight 4 based on the +mission time overlay.

edkyle99 · « **Reply #705 on:** 07/14/2009 04:34 am »

Quote from: braddock on 07/14/2009 04:31 am

Will it take time for them to verify the final orbit? Does that require multiple observations, or is it instantaneous?

The on-board guidance system should give them an instantaneous number, if they have good telemetry at the time (it appeared they did).

- Ed Kyle

corrodedNut · « **Reply #706 on:** 07/14/2009 04:35 am »

"Payload separation and 2nd stage relight confirmed!!"

http://twitter.com/wakeUpEarly

cixelsyD · « **Reply #707 on:** 07/14/2009 04:36 am »

*applause*

!!!!

Chandonn · « **Reply #708 on:** 07/14/2009 04:36 am »

Quote from: corrodedNut on 07/14/2009 04:35 am

"Payload separation and 2nd stage relight confirmed!!"

http://twitter.com/wakeUpEarly

AWESOME NEWS! I was expecting we'd see it here first!

Antares · « **Reply #709 on:** 07/14/2009 04:37 am »

Quote from: corrodedNut on 07/14/2009 04:35 am

"Payload separation and 2nd stage relight confirmed!!"

http://twitter.com/wakeUpEarly

Hopefully in the opposite order

corrodedNut · « **Reply #710 on:** 07/14/2009 04:38 am »

I just hope he got that backward

jabe · « **Reply #711 on:** 07/14/2009 04:38 am »

cool...hope the news is correct!!!
BTW who is wakeupoearly?

butters · « **Reply #712 on:** 07/14/2009 04:39 am »

Is there a second stage deorbit burn?

Chris Bergin · « **Reply #713 on:** 07/14/2009 04:41 am »

Quote from: corrodedNut on 07/14/2009 04:35 am

"Payload separation and 2nd stage relight confirmed!!"

http://twitter.com/wakeUpEarly

Errrr, but who is that?

braddock · « **Reply #714 on:** 07/14/2009 04:41 am »

This internet thing is getting out of hand....from the floor of HQ (presumably):
http://img268.yfrog.com/i/8tk.jpg/

R.Simko · « **Reply #715 on:** 07/14/2009 04:41 am »

Good work SpaceX. Let's hope Falcon 9 flight 1 is every bit as successfull.

Chandonn · « **Reply #716 on:** 07/14/2009 04:41 am »

Quote from: butters on 07/14/2009 04:39 am

Is there a second stage deorbit burn?

AFAIK, the 2nd stage doesn't have TPS or plans for recovery (I believe it was MUsk who said that F9's second stage was planned for eventual recovery FYI). I'm not sure if there's a deorbit burn to destroy the stage once it's been used. Seems a waste of extra fuel for a first operational flight.

corrodedNut · « **Reply #717 on:** 07/14/2009 04:41 am »

Quote from: jabe on 07/14/2009 04:38 am

cool...hope the news is correct!!!
BTW who is wakeupoearly?

My best guess is he works for SpaceX, at LC40.

Chris Bergin · « **Reply #718 on:** 07/14/2009 04:44 am »

This is way too tinpot for my liking. I'd want to see official confirmation.

Antares · « **Reply #719 on:** 07/14/2009 04:44 am »

Depletion burn (or blowdown) will most likely be out of plane to change the inclination. Less of a chance of collision in that case.