Designation | 12309 / 81018A |
Launch date | 21 Feb 1981 |
Country of origin | United States |
Mission | Telecommunications |
Geostationary orbit | see below |
Launch vehicle | Atlas Centaur |
Launch site | Cape Canaveral |
Begin | End | Position |
L: 21 Feb 1981 | 75.4°W | |
< Mar 1995 | Jul 2001 | 76°W, inclined |
Oct 2001 | Dec 2003 | 70°E, inclined, Parallax 1 |
Aug 2004 | varies from 70 to 80°E, inclined, Esiafi 1 |
Specifications
C-band
Transponder frequency chart
Current coverage (at 70°E): Europe, Middle East, Western Asia. Antennas as
said to be constantly repointed to stay in sync with its high inclination.
Telemetry beacons: 3.7005 & 4.1990 GHz
Command beacon: 5.925-5.928 GHz