| |
| Vanguard SLV7 (TV4BU) | 1959 Sep 18 |
Launch Result
SuccessLaunched Objects
| COSPAR | JCAT | Name | AltName | Owner | Mass/kg | |
|---|---|---|---|---|---|---|
| 1959 Eta 1 | S00020 | Magne-Ray Satellite | Vanguard III | NRL | 23 |
  |
| 1959 Eta 1 | A00034 | Vanguard SLV4 Third Stage | X-248-A2 S/N SV-59 | NRL | 24 | |
| 1959 Eta 2 | S29005 | Debris object | NRL | |||
| 1959 Eta 3 | S31405 | Debris object | NRL |