1990-043A
DARPA's MACSATs (Multiple Access Comsats) were followons to the GLOMR payloads and demonstrated tactical communications relays. The 70kg satellites, built by DSI, were launched together on a single Scout G-1 from Vandenberg in May 1990. They reached a 612 x 768 km orbit comparedwith the planned 740 km circular one. The MACSATs were 0.61m in diameter and 0.36m high, with a 6.1m gravity gradient boom.
The Master Control Station was in McLean, Virginia.
| Macsat 1 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1990 May 9 | 1750 | Launch by Scout G-1 | V SLC5 |
| T+1:18 St 1 burnout | |||
| T+1:18 St 2 burn | |||
| T+1:59 St 2 burnout | |||
| T+2:03 Heatshield sep | |||
| T+2:05 Stage 3 burn | |||
| T+3:53? Stage 3 burnout | |||
| 1801? | T+11m? Stage 3 sep | ||
| 1801? | T+11m? Stage 4 burn | ||
| 1802 | T+12m? Stage 4 burnout | ||
| 1803? | T+13m? sep from Stage 4 | ||
| 98.57 612 x 768 x 89.9 | |||
1990-043B
Macsat 2 was intended for experimental use but was pressed into service to support the US Marine Corps during the Persian Gulf conflict. The 68kg UHF communications store-forward satellite was built by DSI for DARPA.
| Macsat 2 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1990 May 9 | 1750 | Launch by Scout G-1 | V SLC5 |
| 98.57 612 x 768 x 89.9 | |||
| 1990 Aug 22 | Used for USMC Persian Gulf support | ||
| 1991 Apr | Persian Gulf support concluded | ||
No comments:
Post a Comment