1985-092B
The first production DSCS III, satellite B-4 (USA 11) was launched with B-5 on an IUS from orbiter Atlantis on its first flight. The two IUS burns placed the pair of DSCS III satellites in geosynchronous orbit; the IUS second stage then separated from each DSCS.
| DSCS III B-4 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1985 Oct 3 | 1515:30 | Launch from KSC LC39A | |
| 1985 Oct 4 | 0053? | IUS deploy | 476 x 515 x 28.5 |
| 0153? | IUS SRM-1 burn | 509 x 35200 x 28.0 | |
| 0710? | IUS SRM-1 sep | ||
| 0712? | IUS SRM-2 burn | 35185 x 35953 x 2.1 | |
| 0714? | IUS SRM-2 burnout | ||
| 0717? | RCS burn? | ||
| 0752? | IUS sep from B-4, B-5 | 35634 x 35963 x 0.3 | |
| 1986 Mar | GEO 12W? | ||
| 1995 Jul | LANT Reserve | GEO 42.5W | |
| 1997 Oct | LANT Reserve | GEO 42.5W | |
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