Encyclopedia Astronautica
Asiasat


Chinese agency. Asia Satellite Telecommunications Company, Hong Kong, China.

Location: Hong Kong.

More... - Chronology...


Associated Countries
See also
  • Agency Agencies or institutions overseeing design, development, construction, or operation of space-related systems. More...

Associated Programs
  • Asiasat AsiaSat is a wholly owned subsidiary of Asia Satellite Telecommunications Holdings Ltd., a company listed on both the Hong Kong (SEHK: 1135HK) and New York (NYSE: SAT) stock exchanges. AsiaSat's two major shareholders are China International Trust and Investment Corporation (CITIC) and Société Européene des Satellites (SES), the operator of EuropeÌs premier ASTRA satellite system. More...

Asiasat Chronology


1990 April 7 - . 13:30 GMT - . Launch Site: Xichang. Launch Complex: Xichang LC1. LV Family: CZ. Launch Vehicle: CZ-3. LV Configuration: Chang Zheng 3 CZ3-7 (22).
  • Asiasat 1 - . Mass: 1,442 kg (3,179 lb). Nation: China. Agency: Asiasat. Manufacturer: El Segundo. Program: Asiasat. Class: Communications. Type: Civilian communications satellite. Spacecraft: HS 376. USAF Sat Cat: 20558 . COSPAR: 1990-030A. Apogee: 35,789 km (22,238 mi). Perigee: 35,786 km (22,236 mi). Inclination: 2.7000 deg. Period: 1,436.20 min. First commercial Chinese launch; Stationed at 105 deg E; formerly Westar 6 (retrieved by STS-51A and refurbished). Fixed-satellite telecommunication services and transmission of television signals. Operational life about 10 years. Orbital position 105.5E. Owner/operator: Asia Satellite Telecommunications Co, Ltd. 23-24/F, East Exchange Tower, 38-40 Leighton Rd, Hong K ong. Telex 68345 ASAT HX Fax 852 576 4111. Operated in geosynchronous orbit at 105 deg E in 1990-1999; 122 deg E in 1999-2000. As of 3 September 2001 located at 121.97 deg E drifting at 0.009 deg E per day. As of 2007 Mar 10 located at 23.96E drifting at 3.706W degrees per day.

1995 November 28 - . 11:30 GMT - . Launch Site: Xichang. Launch Complex: Xichang LC2. LV Family: CZ. Launch Vehicle: CZ-2E. LV Configuration: Chang Zheng 2E CZ2E-6 (38).
  • Asiasat 2 - . Mass: 3,485 kg (7,683 lb). Nation: China. Agency: Asiasat. Manufacturer: Lockheed. Program: Asiasat. Class: Communications. Type: Civilian communications satellite. Spacecraft: AS 7000. USAF Sat Cat: 23723 . COSPAR: 1995-064A. Apogee: 35,798 km (22,243 mi). Perigee: 35,777 km (22,230 mi). Inclination: 0.4000 deg. Period: 1,436.20 min. TV; 24 C-band and 9 Ku-band transponders. Stationed at 100.5 deg E. Positioned in geosynchronous orbit at 100 deg E in 1995-1999 As of 5 September 2001 located at 100.49 deg E drifting at 0.015 deg W per day. As of 2007 Mar 9 located at 100.49E drifting at 0.011W degrees per day.

1997 December 24 - . 23:19 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC81/23. LV Family: Proton. Launch Vehicle: Proton-K/DM-2M. LV Configuration: Proton-K/DM-2M (DM3) 394-01. FAILURE: DM-3 Stage failed, leaving spacecraft in geosynchronous transfer orbit.. Failed Stage: 4.
  • Asiasat 3 - . Payload: HGS-1. Nation: China. Agency: Asiasat. Manufacturer: El Segundo. Program: Asiasat. Class: Communications. Type: Civilian communications satellite. Spacecraft: HS 601. USAF Sat Cat: 25126 . COSPAR: 1997-086A. Apogee: 35,964 km (22,346 mi). Perigee: 35,612 km (22,128 mi). Inclination: 5.5000 deg. Period: 1,436.20 min. The spacecraft was left in a high inclination useless orbit by a failure of the DM-3 stage and became an insurance writeoff. Two trips around the Moon to remove the inclination under its new owner (Hughes) saw it back into very limited service (as HGS-1) by August 1998 over the Indian Ocean and available for sale at bargain rates. Operated in geosynchronous orbit at 150-154 deg W in 1998; 60 deg W in 1999. As of 5 September 2001 located at 59.68 deg W drifting at 0.024 deg W per day. As of 2007 Mar 8 located at 169.58W drifting at 0.011W degrees per day.

1999 March 21 - . 00:09 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC81/23. LV Family: Proton. Launch Vehicle: Proton-K/DM-2M. LV Configuration: Proton-K/DM-2M (DM3) 388-01.
  • Asiasat 3S - . Payload: HS 601HP. Mass: 3,463 kg (7,634 lb). Nation: China. Agency: Asiasat. Manufacturer: El Segundo. Program: Asiasat. Class: Communications. Type: Civilian communications satellite. Spacecraft: HS 601. USAF Sat Cat: 25657 . COSPAR: 1999-013A. Apogee: 35,795 km (22,241 mi). Perigee: 35,778 km (22,231 mi). Inclination: 0.0000 deg. Period: 1,436.10 min. A replacement for Asiasat 3, placed in the wrong orbit by a Proton launch in 1997, Asiasat 3S carried C and Ku band transponders. The Blok DM3 upper stage placed it a 9,677 km x 35,967 km x 13.1 deg geosynchronous transfer orbit. Asiasat's on-board R4D apogee engine was to be used to raise perigee to geostationary altitude. Mass in transfer orbit was 3,463 kg, down to 2,500 kg after insertion in geostationary orbit. Operated in geosynchronous orbit at 105 deg E from 1999. As of 4 September 2001 located at 105.52 deg E drifting at 0.008 deg E per day. As of 2007 Mar 11 located at 105.46E drifting at 0.017W degrees per day.

2003 April 12 - . 00:47 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. Launch Pad: SLC36B. LV Family: Atlas V. Launch Vehicle: Atlas 3B SEC. LV Configuration: Atlas 3B-SEC AC-205.
  • AsiaSat 4 - . Payload: HS 601HP / AsiaSat 1R. Mass: 4,042 kg (8,911 lb). Nation: China. Agency: AsiaSat. Manufacturer: El Segundo. Program: Asiasat. Class: Communications. Type: Civilian communications satellite. Spacecraft: HS 601. USAF Sat Cat: 27718 . COSPAR: 2003-014A. Apogee: 35,805 km (22,248 mi). Perigee: 35,772 km (22,227 mi). Inclination: 0.0000 deg. Period: 1,436.20 min. Delayed from May 28, 2002, and January 13, February 5, and April 11, 2003. AsiaSat 4 was designed to provide broadcast, telecommunications and broadband multimedia services to the Asia Pacific region, and direct-to-home broadcast servic-es to Hong Kong, from its orbital position of 122 deg É East longitude.The satellite generated up to 9,600 watts using two sun-tracking four-panel solar wings covered with triple-junction gallium arsenide solar cells. AsiaSat 4 was to operate in C-band and Ku-band. The satellite carried 28 active transponders with six spares in C-band, powered by 55-watt traveling-wave tube amplifiers (TWTAs), and 20 active transponders with four spares in Ku-band, powered by 140-watt TWTAs. The C-band payload was designed to offer pan-Asian coverage, similar to AsiaSat 3S, also a 601HP model. The Ku-band payload provided high power, and spot beams for selected areas in either the Fixed Satellite Service frequency band or in the Broadcast Satellite Service frequency band. As of 2007 Mar 10 located at 122.23E drifting at 0.011W degrees per day.

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