1976-003A
The Helios 2 solar probe was similar to the Helios 1 mission and was launched on an orbit with an even smaller perihelion on 1976 Jan 15.
| Helios 2 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1976 Jan 15 | 0534 | Launch by Titan IIIE Centaur | CC LC41 |
| T+1:54 Stage 1 MES | |||
| T+2:06 SRM sep | |||
| T+4:25 St 1 MECO | |||
| 0538:25 | T+4:25 Titan stage 1 sep | ||
| 0538:25 | Titan stage 2 burn | ||
| 0539:25 | T+5:25 Fairing sep | ||
| 0541:58 | T+7:58 St 2 MECO | ||
| 0542:03 | Stage 2 sep | ||
| 0542:13 | T+8:13 Centaur TC-5 MES1 | ||
| 0543:55 | T+9:55 Centaur TC-5 MECO1, coast in EPO | 161 x 166 x 30.30 | |
| 0612:05 | T+38:05 Centaur TC-5 MES2 | ||
| 0616:54 | T+42:54 Centaur TC-5 MECO2 | 196 x -58663 x 30.3 | |
| 0618:04 | Spinup | ||
| 0618:06 | Motor attach clamp jettison | ||
| 0618:06 | Centaur TC-5 sep from Star 37E/Helios 2 | ||
| 0618:43 | T+44:43 Star 37E burn | ||
| 0619:27 | T+45:27 Star 37E cutoff | ||
| 0620:44 | T+46:44 Star 37E payload clamp band jettison | ||
| 0620:44 | T+46:44 Star 37E sep | 284.5 x -21032 x 30.27 | |
| 0620:46 | T+46:46 Star 37E yo deploy | ||
| 180d, 0.28 x 1.0 AU | |||
| 1015 | Pass EL1:4 | ||
| 1976 Jan 16 | Exit Earth SOI | ||
| 1976 Apr 17 | Perihelion 0.28AU | ||
| 1976 Jul 18 | Aphelion | ||
| 1980 May 15 | end of transmissions | ||
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