SES-8 – Falcon 9 GEO Transfer Mission • Hacker News Board

Re: SES-8 – Falcon 9 GEO Transfer Mission

#11

Post by InclinedPlane » Tue, Dec 03, 2013, 10:45 PM UTC

Launch, MECO, stage sep, second stage is running now.

Update: Second stage engine cutoff (SECO), now coasting until second stage reignition.

Update 2: Second stage reignition should occur at 3:08pm PST (about 6 minutes from now) and burn for about 1min 11 seconds.

Update 3: "second stage restart burn successful. Orbit looks nominal" - @SpaceX

Update 4: "Spacecraft separation confirmed! SES-8 is now in its targeted GEO transfer orbit." - @SpaceX

Re: SES-8 – Falcon 9 GEO Transfer Mission

#12

Post by S_A_P » Tue, Dec 03, 2013, 10:53 PM UTC

So far a success, congrats SpaceX team!

Re: SES-8 – Falcon 9 GEO Transfer Mission

#13

Post by skorgu » Tue, Dec 03, 2013, 10:53 PM UTC

Anyone know how long until they attempt the second stage restart?

Re: SES-8 – Falcon 9 GEO Transfer Mission

#14

Post by [deleted] » Tue, Dec 03, 2013, 10:54 PM UTC

[deleted]

Re: SES-8 – Falcon 9 GEO Transfer Mission

#15

Post by cocoflunchy » Tue, Dec 03, 2013, 10:55 PM UTC

skorgu wrote: post #13

Anyone know how long until they attempt the second stage restart?

Apparently it should at about T+30 min (seen on the SpaceX subreddit, so I don't know if it's accurate).

Re: SES-8 – Falcon 9 GEO Transfer Mission

#16

Post by gatehouse » Tue, Dec 03, 2013, 10:56 PM UTC

Ignition is around 42:20 relative to the stream beginning.

Re: SES-8 – Falcon 9 GEO Transfer Mission

#17

Post by skorgu » Tue, Dec 03, 2013, 10:59 PM UTC

cocoflunchy wrote: post #15

skorgu wrote: post #13

Anyone know how long until they attempt the second stage restart?

Apparently it should at about T+30 min (seen on the SpaceX subreddit, so I don't know if it's accurate).

Thanks!

Reddit open thread for this launch: http://www.reddit.com/r/spacex/comments/1ryy1n/rspacex_falco...

Re: SES-8 – Falcon 9 GEO Transfer Mission

#18

Post by waterlesscloud » Tue, Dec 03, 2013, 10:59 PM UTC

cocoflunchy wrote: post #15

skorgu wrote: post #13

Anyone know how long until they attempt the second stage restart?

Apparently it should at about T+30 min (seen on the SpaceX subreddit, so I don't know if it's accurate).

"At T+27 minutes, 2nd stage engine will reignite for ~1 minute. At T+33 minutes, spacecraft separation"

Re: SES-8 – Falcon 9 GEO Transfer Mission

#19

Post by double051 » Tue, Dec 03, 2013, 11:05 PM UTC

aidos wrote: post #10

Velocity of 1.2km/s - rockets are just awesome.

It'll have to go over 7km/s to reach low Earth orbit, and even faster still to complete it's mission to the geostationary satellite belt.

http://en.wikipedia.org/wiki/Geostationary_orbit

Re: SES-8 – Falcon 9 GEO Transfer Mission

#20

Post by hkbarton » Tue, Dec 03, 2013, 11:06 PM UTC

Flight Update Falcon 9 and SES-8 satellite currently in parking orbit, awaiting second burn. All systems nominal.