cosmos.wikisort.org - Spacecraft

Intelsat 805 is a communications satellite operated by Intelsat. Launched in 1998 it was operated in geostationary orbit at a longitude of 55.5 degrees west for around 14 years.

Intelsat 805

Mission type	Communications
Operator	Intelsat
COSPAR ID	1998-037A
SATCAT no.	25371
Mission duration	14 years (planned)
Spacecraft properties
Spacecraft type	AS-7000
Manufacturer	Lockheed Martin
Launch mass	3,524 kilograms (7,769 lb)
Start of mission
Launch date	June 18, 1998, 22:48 (1998-06-18UTC22:48Z) UTC[1]
Rocket	Atlas IIAS AC-153
Launch site	Cape Canaveral SLC-36A
Orbital parameters
Reference system	Geocentric
Regime	Geostationary Now supersynchronous
Semi-major axis	42,164 kilometres (26,199 mi)
Perigee altitude	35,778.0 kilometres (22,231.4 mi)
Apogee altitude	35,809.0 kilometres (22,250.7 mi)
Inclination	0°
Period	1,436.1 minutes
Epoch	May 6, 2017[2]
Transponders
Band	28 C Band, 3 Ku band
Coverage area	Americas, Europe
Intelsat 8 ← Intelsat 804 Intelsat 806 →

Launch

The launch of Intelsat 805 made use of an Atlas II rocket flying from Cape Canaveral Air Force Station, Florida, United States. The launch took place at 22:48 UTC on June 18, 1998, with the spacecraft entering a geosynchronous transfer orbit. Intelsat 805 subsequently fired its apogee motor to achieve geostationary orbit.

Technical details

C-Band slot chart
Slot	Uplink (GHz)	Downlink (GHz)	Hemi A	Hemi B	Bandwidth (MHz)
7'	6.467	3.442	13'A	23'A	36
6'	6.507	3.442	12'B	22'B	36
5'	6.547	3.482	12'A	22'A	36
4'	6.587	3.562	11'B	21'B	36
3'	6.627	3.602	11'A	21'A	36
'1	5.908	3.683	10'A	20'A	36
1-2	5.970	3.745	11	21	72
3-4	6.050	3.825	12	22	72
5-6	6.130	3.905	13	23	72
7-8	6.220	3.995	14	24	72
9	6.280	4.055	15	25	36
10	6.320	4.095	16	26	36
11	6.360	4.135	17	27	36
12	6.4025	4.1775	18	28	41

Ku-band slot chart
Slot	Uplink (GHz) Polariztion H	Downlink (GHz) Polarization V	Spot 1	Bandwidth (MHz)
1-2	14.0425	12.5475	361	77
3-4	14.125	12.630	362	72
5-6	14.205	12.701	363	72

References

---