ST-1
Mission type | Communications |
---|---|
Operator | Singapore Telecom Chunghwa Telecom |
COSPAR ID | 1998-049A |
SATCAT no. | 25460 |
Mission duration | 13 years |
Spacecraft properties | |
Bus | Eurostar-2000+ |
Manufacturer | Matra Marconi |
Launch mass | 3,200 kilograms (7,100 lb) |
Start of mission | |
Launch date | 25 August 1998, 23:07 (1998-08-25UTC23:07Z) UTC[1] |
Rocket | Ariane 44P V109 |
Launch site | Kourou ELA-2 |
Contractor | Arianespace |
Orbital parameters | |
Reference system | Geocentric |
Regime | Geostationary |
Longitude | 88° east |
Perigee altitude | 35,771 kilometres (22,227 mi) |
Apogee altitude | 35,813 kilometres (22,253 mi) |
Inclination | 1.83 degrees |
Period | 23.93 hours |
Epoch | 29 October 2013, 18:16:49 UTC[2] |
ST-1 is a communications satellite owned by Singapore Telecom and Taiwan's Chunghwa Telecom Company, Ltd. It was placed launched on 25 August 1998, by an Ariane 4 rocket. The two companies jointly operate the spacecraft from control centres located in Seletar, Singapore and Taipei, Taiwan, respectively.
ST-1 carries 16 high-power Ku band transponders and 14 medium-power C-band transponders. Weighing over 3,000 kg (6,600 lb.) at launch, ST-1 generates more than 6,500 Watts of electrical power. The satellite's broad C-band coverage beam extends from the Middle East to Japan, including all of Southeast Asia.
ST-1 also features two Ku-band spot beams: a "K1" beam that stretches from Taiwan to Singapore and from Indonesia to Malaysia and a "K2" beam centred over the Indian subcontinent. The ST-1 satellite currently delivers telephony, digital DTH broadcasting, VSAT and other business services throughout the region.
Singapore Telecom and Taiwan's Chunghwa Telecom Company are currently operating the replacement satellite ST-2 after ST-1 has reached its mission duration in 2011.
References
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