1998-016A
UHF F/O F8 is the first of the Block III satellites. UHF F8 to F10 carry a high data rate relay package and a TV direct broadcast payload, replacing the SHF transponders. The high capacity USN Global Broadcast Service (GBS) will decrease the time it takes for US forces to receive imagery information. F8 also has an extra solar panel on each solar array wing. Launch mass is 3200 kg, BOL mass 1540 kg.
F8 will be stationed at 172E/Pacific, replacing FLTSATCOM 4. Control is by 3rd SOS/Falcon until 1999, when NSOC/Pt Mugu takes over. Launch is by the last Atlas 2, using the 14-foot fairing, with an MRS (minimum residual shutdown) transfer orbit.
| UHF F/O F8 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1998 Mar 16 | 2132 | Launch by Atlas 2 AC-132 | CC LC36A |
| T+2:46 BECO | |||
| T+2:49 Booster sep | |||
| T+3:35 PLF sep | |||
| T+4:34 SECO | |||
| T+4:36 Atlas sep | |||
| T+4:58 MES-1 | |||
| 2143 | T+11:39 MECO-1 | 159 x 867 x 28.2 | |
| 2157 | T+25:56 MES-2 | ||
| 2159 | T+27:28 MECO-2 | 222 x 23442 x 27.0 | |
| 2202 | T+30:56 Centaur sep | ||
| 1998 Mar 16 | 415.43 219 x 23910 x 26.9 | ||
| 1998 Mar 18 | 1530? | LAM-1 perigee | |
| 1998 Mar 18 | 511.81 203 x 29430 x 26.9 | ||
| 1998 Mar 19 | 0030? | LAM-2 perigee | |
| 1998 Mar 19 | 541.52 226 x 31031 x 26.9 | ||
| 1998 Mar 20 | 0300? | LAM-3 perigee | |
| 1998 Mar 20 | 639.49 273 x 36144 x 26.9 | ||
| 1998 Mar 20 | 1900? | LAM-4 apogee | |
| 1998 Mar 21 | 643.93 516 x 36130 x 26.4 | ||
| 1998 Mar 21 | 1400? | LAM-5 apogee | |
| 1998 Mar 21 | 1158.99 24226 x 36116 x 7.2 | ||
| 1998 Mar 23 | 0900? | LAM-6 apogee | |
| 1998 Mar 24 | 1432.43 35268 x 36161 x 6.0 GEO 178.5W+0.9E | ||
| 1998 Apr 1 | 1435.79 35477 x 36083 x 6.0 GEO 170.7W+0.07E | ||
| 1998 May 1 | 1436.27 35484 x 36095 x 6.0 GEO 171.5W+0.05W | ||
| 1998 Jun 28 | 1436.08 35769 x 35802 x 5.9 GEO 171.2E | ||
| 1999 Jul 25 | 1435.94 35772 x 35794 x 5.2 GEO 172.3E | ||
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