1999-067A
The first 5D-3, S-15 (F-15 after launch) launched by Titan II in Oct 1999. It was placed in a 0915/2115LT orbit, later than earlier missions to help tactical operations. F-15 replaced F-12 and F-14 in one of the two DMSP planes. S-15 used the 5D-3 bus but carried the old 5D-2 payload complement.
By the time 5D-3 was launched, DMSP was operated by NOAA although managed by USAF SMC. NOAA SOCC/Suitland, MD checks out the spacecraft. It's turned over to the NPOESS IPO (Nat. Polar Orbiting Env Satellite System Integrated Program Office), which delegates operations back to the NOAA OSO (Office of Satellite Operations). Mass was 1030 kg. Size was 7.3m long.
According to Jane's Spaceflight Directory, the 5D-3 was intended to carry a "Star 37FP" apogee motor with a 19 percent offload. This may be the same as the Star 37XFP.
| DMSP F-15 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1999 Dec 12 | 1738:01 | Launch by Titan II | V SLC4W |
| T+2:45 Stage 1 sep | |||
| T+4:00? Fairing sep | |||
| 1743:41 | T+5:40 Stage 2 MECO | ||
| 1744:15 | T+6:14 Stage 2 sep | ||
| 1751:38 | T+13:37 Star 37 burn | ||
| 1752:29 | T+14:28 Star 37 burnout | ||
| 1757:31 | T+19:30 Solar array deploy | ||
| 1805? | Stage 2 reentry | ||
| 1999 Dec 19 | 101.81 837 x 851 x 98.9 | ||
| 2003 Nov | Secondary status | ||
| 2006 Aug 14 | orbit adjust | ||
| 2007 Apr 29 | 101.69 833 x 843 x 98.5 | ||
| 2007 Jul | Still operating | ||
| 2016 Mar | Secondary operational sat at 0240 LT | ||
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