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Apstar 1


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).


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

End of life

Out of service Jan 2014
Cause sent to the junk orbit

External resources

sat-index articles

Technical data

Lyngsat transponder loading

EIRP coverage (dBW)


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


Main transponders 24
Backup transponders
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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