Galaxy 11
Galaxy 11 | |
---|---|
Start date | December 22, 1999, 12:50 UTC |
Launcher | Ariane 44L V-125 |
Launch site | CSG , ELA-2 |
COSPAR-ID : | 1999-071A |
Takeoff mass | 4488 kg |
Mass in orbit | 2775 kg |
Dimensions | 6.2 m × 3.8 m × 3.3 m |
Span in orbit | 31.0 m ( solar panels ), 9.0 m ( antennas ) |
Manufacturer | Boeing Satellite Systems |
Satellite bus | BSS-702 |
lifespan | 15 years (planned) |
operator | PanAmSat ( Intelsat ) |
Playback information | |
Transponder | 24 in the C band (+6 backup ), 40 in the Ku band (+10 backup ) |
Transponder performance |
C-band : 20 W , Ku-band : 75-140 W |
Others | |
Electrical power | 10.4 kW |
position | |
First position | 99 ° west |
Actual position | 44.9 ° East |
drive | 4 ion jet engines |
List of geostationary satellites |
Galaxy 11 is a commercial communications satellite from the satellite operator PanAmSat (now Intelsat ) from the Galaxy series .
construction
Galaxy 11 is based on the BSS-702 - satellite bus of Boeing built (it is also the first satellite using the Boeing-702) bus. It had a planned lifespan of 15 years, which has already been exceeded. The satellite accommodates 24 transponders in the C-band (+ 6 replacement) and 40 in the Ku-band (+ 10 replacement). The satellite is powered by batteries and solar panels .
Mission history
Galaxy 11 was ordered in May 1997 at Boeing and on 22 December 1999 on a four Ariane - launcher from the Guiana Space Center successfully launched. The satellite was initially positioned at 99 ° West in geostationary orbit . It was later moved to 91 degrees west. It is currently circling at 44.9 ° East about 36,000 km above the earth.
The satellite suffers from a generic flaw of the early BSS-702 model: fogging of the concentrator mirrors on the solar cells leads to reduced available power.
reception
The satellite can be received in North America and Brazil .
Web links
- Galaxy 11 at Gunter′s Space Page (English).
- First Hughes 702 Satellite: Galaxy XI on Boeing's website.
Individual evidence
- ↑ Position according to GEOSTATIONARY SATELLITES. N2YO, January 5, 2018, accessed January 6, 2018 .