Asiasat 2

Also called Amos 5i

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General

Designation	23723 / 95064A
Launch date	28 Nov 1995 at 11:30 UT
Country of origin	China
Mission	Telecommunications
Geostationary orbit	see below
Launch vehicle	Long March 2E

Second stage orbit: 185 km x 309 km x 28° Then the Chinese perigee kick motor SPTM-17 (second flight) lifted Asiasat to 222 x 35039 km x 25.6° and the liquid apogee motor (a Leros-class dual mode liquid apogee engine built by Royal Ordnance plc, England) then circularized the orbit.

Cost: $200 million

Amos 5i provides Pan-African C-band and Middle-East + North Africa Ku-band coverage. The satellite is running out of fuel and should reach EOL in early 2011.

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Location

Begin	End	Position
L: 28 Nov 1995	Oct 2009	100.5°E
Jan 2010	Oct 2010	17°E, renamed Amos 5i
Oct 2010	Sep 2011	17°E, inclined
Jan 2012	May 2012	120°E, inclined

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End of life

Out of service	May 2012
Cause	moved to the junk orbit

sat-index articles

Technical data

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EIRP coverage at 100.5°E (dBW)

C-band
Ku1 Ku-band
Ku2 Ku-band

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Specifications

Prime contractor	GE Astro Space
Platform	GE-7000
Mass at launch	3460 kg
Mass in orbit	1500 kg
Dimension	24 x 7 m deployed
Stabilization	3-axis
DC power	BOL: 7100 W
Design lifetime	13 years

The perigee engine was made in China and is being used for the first time.

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C-band

Main transponders	24
Backup transponders	6
Power	55 W (TWTA)
Bandwidth	20 transponders at 36 MHz 4 transponders at 72 MHz
Coverage	Africa & Middle East
EIRP max	39 dBW
G/T max	0 dB/K
SFD	-97 dBW/m²
Polarization	Linear H/V
Frequencies	Uplink: 5.845-6.425 GHz Downlink: 3.625-4.2 GHz

2 beacons pure carrier at 4.1975 H and 4.1995 H GHz

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Transponder frequency chart (GHz)

Horizontal downlink	Transponder	Vertical downlink	Bandwidth (MHz)
3.640	1B		36
	1A	3.660	36
3.680	2B		36
	2A	3.700	36
3.720	3B		36
	3A	3.740	36
3.760	4B		36
	4A	3.780	36
3.800	5B		36
	5A	3.820	36
3.840	6B		36
	6A	3.860	36
3.880	7B		36
	7A	3.900	36
3.920	8B		36
	8A	3.940	36
3.960	9B		36
	9A	3.980	36
4.000	10B		36
	10A	4.020	36
4.060	11B		72
	11A	4.080	72
4.140	12B		72
	12A	4.160	36

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Ku-band

Main transponders	9
Backup transponders	3
Power	115 W (TWTA)
Bandwidth	54 MHz
Coverage	Middle East & North Africa
EIRP max	52 dBW
G/T max	6 dB/K
SFD	-97 dBW/m²
Polarization	Linear
Frequencies	Uplink: 14.0-14.3 GHz Downlink: 12.2-12.5 GHz

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Transponder frequency chart (GHz)

Horizontal downlink	Transponder	Vertical downlink
12.230	1
	2	12.245
12.290	3
	4	12.305
12.350	5
	6	12.365
12.410	7
	8	12.425
12.470	9

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