1958-F05
The Lyman Alpha satellite was designed to measure the flux of solar radiation in the 1215A Lyman-Alpha line of hydrogen. It also carried a micrometeorite detector, which returned data up to an altitude of 2500 km. NASA TN-D-782 reports an apogee of 3426 km. The second stage lost attitude, so that although the third stage fired it did so at the wrong angle (60 degree pitch up) and did not reach orbit. Reentry was 9430 km downrange. The launch vehicle was the first `mission' Vanguard, SLV-1.
| Vanguard Lyman Alpha | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1958 May 28 | 0346:20 | Launch by Vanguard SLV-1 | CC LC18A |
| 0348:43 | T+2:23 Stage 1 sep | ||
| 0349:11 | T+2:51 Fairing sep | ||
| 0350:40 | T+4:21 Stage 2 burnout | ||
| 0355:31 | T+9:11 Stage 2 sep, 600 km alt | ||
| 0355:48 | T+9:28 Stage 3 burn | ||
| 0356 | T+10:01 Stage 3 burnout | ||
| 0356:48 | T+10:28 Stage 3 sep | ||
| -3900 x 3500 x 34? | |||
| 0418? | Apogee over 41W? 2N? | ||
| 0445? | Reentry over 5W? 23S?, S Atlantic | ||
