Apstar 1

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General

Designation	23185 / 94043A
Launch date	21 Jul 1994 at 10:55 UT
Country of origin	China
Mission	Telecommunications
Geostationary orbit	see below
Launch vehicle	Long March 3

The satellite was to be slotted at 131°E but this was too close from Sakura 3A (132°E) and Gorizont 29 (130°E). After protests from in-orbit satellite operators a slot at 138°E was leased to Tonga (for about $15 million).

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Location

Begin	End	Position
L: 21 Jul 1994	Sep 2004	138°E
Sep 2004	Nov 2004	142°E
Dec 2004	Aug 2012	142°E, inclined
Oct 2012	Jan 2014	163°E, inclined

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End of life

Out of service	Jan 2014
Cause	sent to the junk orbit

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External resources

sat-index articles

Technical data

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Lyngsat transponder loading

EIRP coverage (dBW)

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Specifications

Prime contractor	Hughes
Platform	HS-376
Mass at launch	1400 kg
Mass in orbit	700 kg
Dry mass	560 kg
Diameter	2.16 m
Height	3.1 m (7.5 m deployed)
Stabilization	Spin stabilized
DC power	BOL: 1130 W EOL: 1022 W
Design lifetime	9 years

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C-band

Main transponders	24
Backup transponders	6
Power	15 W
Bandwidth	20 transponders of 36 MHz 4 transponders of 72 MHz
Coverage & EIRP max	South East Asia, up to 36 dBW
G/T max	2 dB/K
Polarization	linear H/V
Frequencies	Uplink: 5.850 - 6.425 GHz Downlink: 3.625 - 4.200 GHz

Telemetry: 4.198125 H & 4.199625 H GHz
Command: 5.928 H & 6.422 V GHz

Transponder frequency chart

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