| Spacecraft | Launch | Launch vehicle |
|---|---|---|
 SECOR 13 | April 14, 1969 | Thorad-Agena D |
| SECOR 6 | June 9, 1966 | Atlas SLV-3 Agena-D |
 SECOR 5 | August 10, 1965 | Scout B |
| SECOR 4 | April 3, 1965 | Atlas SLV-3 Agena-D |
| SECOR 2 | March 11, 1965 | Thor-Ablestar |
| SECOR 3 | March 9, 1965 | Thor-Agena D |
| SECOR 1 | January 11, 1964 | Thor-Agena D |