Tuesday, June 3, 1997
Monday, June 2, 1997
Chinasat 4
1991-088A
STTW-5 was launched on 1991 Dec 28 but the second burn of the third stage failed after 58 seconds. A plumbing leak in the helium pressurization system was the cause. The apogee motor was fired to place the spacecraft in GTO, and the fuel was depleted during burns in Feb-Sep 1992 to raise perigee to 2100 km.
| STTW 5 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1991 Dec 28 | 1202 | Launch by CZ-3 | XSC |
| 1204 | Stage 1 sep | ||
| 1206 | T+4:15 St 2 MECO | ||
| 1206 | T+4:19 Fairing sep | ||
| 1206 | T+4:22 St 2 VECO | ||
| 1206 | T+4:23 Stage 2 sep | ||
| 1206 | T+4:23 Stage 3 burn 1 | ||
| 1213 | T+11:28 Stage 3 cutoff, parking orbit | ||
| 1217 | T+15:35 Stage 3 restart | ||
| Stage 3 failed after 58s | |||
| 1219 | T+17:50 Engine thrust terminated at 135s | ||
| 1223 | T+21:32? Payload and stage 3 sep | 219 x 2451 x 31.1 | |
| 1991 Dec 29 | 0043 | AKM fired | |
| 1992 Jan 9 | 617.49 208 x 35076 x 31.62 | ||
| 1992 Feb 17 | 609.20 185 x 34668 x 31.5 | ||
| 1992 Feb? | Raise orbit | ||
| 1992 May 25 | 595.39 199 x 33932 x 31.20 | ||
| 1992 Jun 25 | 595.12 257 x 33859 x 31.21 | ||
| 1992 Sep 22 | 632.80 2032 x 34042 x 31.36 | ||
| 1993 Mar 28 | 632.72 2131 x 33939 x 31.5 | ||
| 1996 Aug 31 | 632.58 2012 x 34051 x 31.8 | ||
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