1960-007A
The Transit IIA satellite carried the first subsatellite, NRL's GRAB 1 (GREB). It carried an experimental clock, and an Alouette program ionospheric beacon. Launch was southeast over South America, to reach high inclination. The despin weights were on a timer set to deploy after 7 day.s This reportedly did not work and 2A was despun using magnetic effects by late July. However, two objects were cataloged in orbit which may have been the despin weights.
The press kit claimed that the NOTS IR scanner was intended to measure the spin period of the satellite.
| Transit IIA | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1960 Jun 22 | 0554 | Launch by Thor Ablestar | CC LC17 |
| T+2:44 Thor MECO | |||
| T+2:46 Thor sep | |||
| T+2:46 Ablestar burn | |||
| T+3:35 Fairing | |||
| 0603 | T+7:28 Ablestar SECO-1 | ||
| 20 min coast | |||
| 0619 | T+25:25 Circ burn, 10 sec | ||
| Plan 926 km 6.808 km/s | -986 x 925 | ||
| 0619 | T+25:39 SECO-2 | ||
| 0620 | 926 x 950 | ||
| 0622 | T+28:55 Ablestar sep | 628 x 1047 x 66.7 | |
| 0628? | GRAB 1 satellite sep | ||
| 1962 Oct 26 | End of transmissions | ||
Payload:
- Electronic clock for navigation use
- Infrared sensor (NOTS)
- Ionospheric beacon and cosmic radio noise experiment (DRTE/Canada)
- Beacon B 162/216 MHz, Beacon C 54/324 MHz
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