The Symphone MV1 (flight model 1) satellite was launched on 1974 Dec 19 from Cape Canaveral.
Launch was successful although stage 2 failed 12s after separation from stage 3.
| Symphonie MV1 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1974 Dec 19 | 0239:00 | Launch by Delta 2914 | CC LC17 |
| SRM sep | |||
| T+3:47 MECO | |||
| St 1 sep | |||
| SES-1 | |||
| SECO-1 | |||
| SES-2 | |||
| SECO-2 | |||
| St 2 sep | |||
| TES 44s | |||
| TECO | |||
| St 3 sep | |||
| 1974 Dec 19 | 0310 | 683.50 405 x 38245 x 13.2 | |
| 1974 Dec 21 | 1715 | Apogee firing (S400) | 1451.76 34067 x 38119 x 0.56 |
| 1974 Dec 23 | 1620 | TCM | 1477.98 35068 x 38136 x 0.65 |
| 1974 Dec 24? | 0438 | TCM | 1417.71 35088 x 35918 x 0.47 |
| 1975 Dec 29 | 1530 | TCM | 1427.72 35340 x 35903 x 0.45 |
| 1975 Jan 3 | 0905 | TCM | 1440.72 35783 x 35967 x 0.46 |
| 1975 Jan 6 | 1512 | TCM plane | |
| 1975 Jan 8 | 0313 | TCM | 1440.43 35772 x 35966 x 0.02 |
| 1975 Jan | GEO 11.5W | ||
| 1977 Mar 4 | Mv out | GEO 11.5E | |
| 1977 May 26 | Mv in for STEP project | GEO 49E | |
| 1977 Nov 10 | 1436.21 35781 x 35795 x 0.1 GEO 49.0E | ||
| 1979 Apr 18 | 1436.09 35775 x 35797 x 0.5 GEO 48.7E | ||
| 1979 Jul 3 | Mv out | GEO | |
| 1979 Sep 3 | Arrive on station | GEO 11.5W | |
| 1979 Sep 15 | 1436.04 35771 x 35799 x 0.8 GEO 11.5W | ||
| 1981 Oct 23 | 1435.97 35772 x 35796 x 2.4 GEO 10.6W | ||
| 1982 Aug 19 | 1436.15 35777 x 35798 x 3.1 GEO 11.2W | ||
| 1983 Jul 14 | 1436.13 35782 x 35792 x 3.9 GEO 11.7W | ||
| 1983 Aug 3 | Raise orbit 80km | ||
| 1983 Aug 4 | End of transmissions | ||
| 1984 Nov 23 | 1440.37 35861 x 35878 x 5.0 | ||
| 1989 Dec 23 | 1440.68 35860 x 35891 x 9.5 | ||
| 1992 Jan 5 | 1440.36 35855 x 35884 x 11.1 | ||
| 1995 Jul 5 | 1440.37 35846 x 35894 x 13.4 | ||
| 1998 Sep 14 | 1440.54 35844 x 35902 x 14.6 | ||