Author Topic: SpaceX Falcon 9 : BulgariaSat-1 : June 23, 2017 : UPDATES (Read 294211 times)

Chris Bergin · « **Reply #200 on:** 06/23/2017 07:10 pm »

LAUNCH!!

ZachS09 · « **Reply #201 on:** 06/23/2017 07:11 pm »

T+1 minute. Approaching Mach 1 at this time.

Falcon 9 should experience Max-Q in about 15 seconds.

Chris Bergin · « **Reply #202 on:** 06/23/2017 07:11 pm »

Star One · « **Reply #203 on:** 06/23/2017 07:11 pm »

Max Q

ZachS09 · « **Reply #204 on:** 06/23/2017 07:11 pm »

T+90 seconds. At T+2 minutes, 36 seconds, the first stage will shut down, leading up to separation of the second stage. The latter's MVac engine will then start up for the first of two burns.

Chris Bergin · « **Reply #205 on:** 06/23/2017 07:11 pm »

Steven Pietrobon · « **Reply #206 on:** 06/23/2017 07:11 pm »

T+1 minute.

ChrisGebhardt · « **Reply #207 on:** 06/23/2017 07:12 pm »

Stage 1 propulsion still nominal.

ChrisGebhardt · « **Reply #208 on:** 06/23/2017 07:12 pm »

MVac chill has begun.

ZachS09 · « **Reply #209 on:** 06/23/2017 07:12 pm »

T+2 minutes. First stage propulsion looks good as the MVac engine undergoes its chilldown sequence.

ZachS09 · « **Reply #210 on:** 06/23/2017 07:12 pm »

T+2 minutes, 25 seconds. First stage now throttling down to limit structural stresses as we approach MECO-1.

ChrisGebhardt · « **Reply #211 on:** 06/23/2017 07:12 pm »

BECO.

Staging!

Steven Pietrobon · « **Reply #212 on:** 06/23/2017 07:12 pm »

T+2 minutes.

Star One · « **Reply #213 on:** 06/23/2017 07:12 pm »

ZachS09 · « **Reply #214 on:** 06/23/2017 07:12 pm »

T+2 minutes, 36 seconds. We have MECO-1. And Core B1029 is on its own again.

And we have Stage 2 startup. The stiffening bands have also fallen away.

Star One · « **Reply #215 on:** 06/23/2017 07:13 pm »

Separation

ChrisGebhardt · « **Reply #216 on:** 06/23/2017 07:13 pm »

Stage 2 propulsion nominal.

ZachS09 · « **Reply #217 on:** 06/23/2017 07:13 pm »

T+3 minutes. The first stage now orienting itself to reentry attitude. The four grid fins should deploy momentarily to assist in atmospheric guidance.

ZachS09 · « **Reply #218 on:** 06/23/2017 07:13 pm »

Stage 2 propulsion is nominal. Coming up on fairing separation.

ChrisGebhardt · « **Reply #219 on:** 06/23/2017 07:13 pm »

Fairing SEP.