1971-024A
The second RCA Victor Ltd-built Isis satellite (ISIS-B/ISIS-2) was operated by CRC and NASA from 1971 to 1979. Mass 264 kg. Size 1.3d 1.2h with dipole 73m. Launch vehicle was Delta E1 with Castor II strapons.
| Isis 2 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1971 Apr 1 | 0257:07 | Launch by Delta E1 | V SLC2E |
| T+0:39 SRM burnout | |||
| T+1:10 SRM sep | |||
| 0259:39 | T+2:32 MECO | ||
| St 1 sep | |||
| 0259:47 | T+2:40 Fairing sep | ||
| 0300 | SES-1 6:30 | ||
| 0306:00 | T+8:53 SECO-1 806 km Vi 6.121 km/s | -3274? x 1365? x 88.2 | |
| 0316:33 | T+19:26? St 2 sep | ||
| 0316:35 | T+19:28 FW-4D TES 30s 1400 km 5.380km/s | ||
| 0317:06 | T+19:59 TECO 1400 km 7.158km/s | ||
| 0319:00 | T+21:53 St 3 sep | 113.4 1358x1429x88.2 | |
| 1979 Oct 1 | end of NASA support | ||
| 1987 Feb 18 | end of transmissions | ||
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