1969-013A
The Tactical Communications Satellite (Tacomsat or Tacsat) was launched in Feb 1969. The Hughes-built 721 kg satellite was 7.6m long and 2.8m in diameter, and was the largest geostationary comsat to date. The later Intelsat IV satellites were derived from Tacsat. It was managed by SAMSO and operated by the US Air Force Communications Service. Tacsat was built by Hughes, which designated the bus HS 308. It was stationed at 107W for tests, and then in Jul 1970 moved to the mid-Pacific at 173W-170E. It was retired in 1972.
| Tacsat | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1969 Feb 9 | 2109:00 | Launch by Titan IIIC | CK |
| T+0:02:01 SRM sep | |||
| T+0:02? St 1 burn | |||
| T+0:04:17 St 1 sep | |||
| T+0:04:41 Fairing | |||
| T+0:07:38 Titan Stage 2 MECO | |||
| 2116 | T+7:51 Transtage burn 1 17s | ||
| 2116 | T+8:08 MECO-1 | 148 x 175 km x 28.6 | |
| 2215? | Transtage MES-2 5:00 | ||
| 2217 | Equator crossing | ||
| 2220? | Transtage MECO-2 | ||
| 1969 Feb 10 | 0330? | Transtage MES-3 1:40 | |
| Transtage MECO-3 | |||
| 0340? | Transtage sep from Tacsat | ||
| 1969 Feb 10 | 0335 | 1446.60 35939 x 36044 x 0.6 GEO 94.3W+2.6E | |
| 1969 Feb | Move to 107W | ||
| 1969 Mar 25 | 0000 | 1436.07 35768 x 35803 x0.9 GEO 107.9W+0.0 | |
| 1969 Mar | `Over Galapagos', POR | ||
| 1970 Jan 8 | 1750 | GEO 107.3W | |
| 1970 Jun 22 | GEO 106.7W | ||
| 1970 Jul 22 | Move to 173W | 1437.30 35779 x 35840 x 0.4 GEO 112.3W+0.3E | |
| 1971 Feb 11 | Move to 179W | 1436.30 GEO 172.9W+0.06E | |
| 1971 Jun 29 | GEO 177.5W+0.15E | ||
| 1971 Jul 18 | GEO 179.7W+0.0 | ||
| 1971 Dec 24 | GEO 178.6W | ||
| 1972 Apr 20 | GEO 178.9W | ||
| 1972 | Move to 170E | ||
| 1972 Sep 16 | GEO 170.6E | ||
| 1972 Dec 4 | end of ops | ||
| 1972 Dec 10 | GEO 170.4E | ||
| 1974 Nov 17 | 1435.87 35767 x 35796 x 4.1 GEO 166.6W+0.05W | ||
| 1975 Dec 30 | GEO 115E (Morgan) | ||
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