1970-011A
The fifth orbital attempt by ISAS was at last successful. The L-4S-5 final stage entered orbit with a small instrument package attached to it; it was given the name Osumi after a local district. The 24 kg satellite transmitted for 16 hrs.
| Osumi | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1970 Feb 11 | 0425 | Launch by L-4S-5 | KASC |
| T+7s SB-310 burnout | |||
| T+8s SB-310 sep | |||
| T+0:29 St 1 burnout | |||
| T+0:32 St 1 sep, 17 km | |||
| T+0:37 St 2 burn | |||
| 0426 | T+1:15 St 2 burnout, 58 km, 2.6 km/s | ||
| T+1:38 Fairing, 87 km | |||
| T+1:40 St 2 sep | |||
| T+1:43 St 3 burn 93 km | |||
| T+2:10 St 3 burnout 141 km, 4.6km/s | -5400 x 525 x 31.1 | ||
| 0427 | T+2:30 St 3 sep | ||
| 0433 | T+7:57 St 4 burn 3.81 km/s | ||
| 0433 | T+8:29 St 4 burnout 525 km 8.13km/s | ||
| 144.2 339 x 5138 x 31.1 | |||
| 1970 Feb 11 | 2030? | End of transmissions | |
| 2003 Aug 1 | 2020? | Reentered | |
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