View source for ST-1

{{about|the communications satellite|other uses|ST1 (disambiguation)}}
{{Infobox spaceflight
| name                  = ST-1
| image                 = 
| image_caption         =

| mission_type          = [[Communications satellite|Communications]]
| operator              = [[Singapore Telecom]]<br/>[[Chunghwa Telecom]]
| website               = 
| COSPAR_ID             = 1998-049A
| SATCAT                = 25460
| mission_duration      = 13&nbsp;years

| spacecraft_bus        = [[Eurostar (satellite bus)|Eurostar-2000+]]
| manufacturer          = [[Matra Marconi Space|Matra Marconi]]
| launch_mass           = {{convert|3200|kg|lb}}
| power                 =

| launch_date           = {{start-date|25 August 1998, 23:07|timezone=yes}}&nbsp;UTC<ref name="launchlog">{{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|first=Jonathan|last=McDowell|work=Jonathan's Space Page|accessdate=30 October 2013}}</ref>
| launch_rocket         = [[Ariane 4|Ariane 44P]] V109
| launch_site           = [[Guiana Space Centre|Kourou]] [[ELA-2]]
| launch_contractor     = [[Arianespace]]
| entered_service       =

| disposal_type         = 
| deactivated           = <!-- {{end-date|[insert date here]}} -->

| orbit_epoch           = 29 October 2013, 18:16:49&nbsp;UTC<ref name="n2yo">{{cite web|url=http://www.n2yo.com/satellite/?s=25460|title=ST 1 Satellite details 1998-049A NORAD 25460|work=N2YO|date=29 October 2013|accessdate=30 October 2013}}</ref>
| orbit_reference       = [[geocentric orbit|Geocentric]]
| orbit_regime          = [[geostationary orbit|Geostationary]]
| orbit_periapsis       = {{convert|35771|km|mi}}
| orbit_apoapsis        = {{convert|35813|km|mi}}
| orbit_inclination     = 1.83&nbsp;degrees
| orbit_period          = 23.93&nbsp;hours
| orbit_longitude       = 88°&nbsp;east
| apsis                 = gee

| trans_band            = 
| trans_frequency       = 
| trans_bandwidth       = 
| trans_capacity        = 
| trans_coverage        = 
| trans_TWTA            = 
| trans_EIRP            = 
| trans_HPBW            = 
}}
'''ST-1''' is a [[communications satellite]] owned by [[Singapore Telecom]] and [[Taiwan|Taiwan's]] [[Chunghwa Telecom|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 (IEEE)|C-band]] transponders. Weighing over 3,000&nbsp;kg (6,600&nbsp;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 K<sub>u</sub>-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|Taiwan's]] Chunghwa Telecom Company are currently operating the replacement satellite [[ST-2]] after ST-1 has reached its mission duration in 2011.

==References==
{{reflist}}

{{Portal|Spaceflight}}
{{Orbital launches in 1998}}

[[Category:Communications satellites in geostationary orbit]]
[[Category:Spacecraft launched in 1998]]
[[Category:First artificial satellites of a country]]
[[Category:Singapore–Taiwan relations]]
[[Category:Satellites using the Eurostar bus]]
[[Category:Satellites of Singapore]]
[[Category:Satellites of Taiwan]]

{{communications-satellite-stub}}