ArianespaceAriane 44PAriane Launch Area 2, Guiana Space Centre, French Guiana
ST-1
Launched
August 25, 1998
Image: Arianespace
Summary
ST-1 launched on an Arianespace Ariane 44P from Ariane Launch Area 2, Guiana Space Centre, French Guiana on August 25, 1998. It was Arianespace's 107th launch, 5th this year and humanity's 4,258th orbital launch attempt. It was the 12th Ariane 44P flight and the 2nd this year. The payload was bound for Geostationary Orbit (Direct-GEO). ST-1, one of 2 catalogued objects, reached a 298 × 35,764 km orbit inclined 3.8°. 2 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Ariane 44P · Arianespace
- Booster
- No booster details on record.
- Mission
- Communications · Geostationary Orbit (Direct-GEO)
- Milestone
- 12th Ariane 44P flight · 2nd this yearArianespace's 107th launch5th this yearhumanity's 4,258th orbital launch attempt51st orbital launch attempt this year
Flight preview
Orbit: as tracked
ST-1 · NORAD 25460 · 1998-049 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- ST-1
- Object ID
- 1998-049A
- Epoch
- 1998-08-25 18:34:19 UTC
- Mean motion
- 2.27753397 rev/day
- Eccentricity
- 0.7267067
- Inclination
- 3.8276°
- Ascending node
- 138.5782°
- Arg. of perigee
- 176.492°
- Mean anomaly
- 194.9772°
- Element set
- 999
- Rev at epoch
- 0
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: Direct-GEO. Ascent drawn from padside's representative profile.
Catalogued objects
2 catalogued: 1 payload, 1 rocket stage; 1 still in orbit
- ST-1 · NORAD 25460 · in orbit
Ariane H10-3 V109 · re-entered September 20, 1998
Data from J. McDowell, planet4589.org
About this launch
Jointly owned by Singapore Telecom (SingTel) and Chunghwa Telecom of Taiwan, the ST 1 satellite system provides telecommunications and direct-to-home broadcast services to most of Asia, up to 16 high-power Ku-band transponders over India, south-east Asia and Taiwan, and 14 C-band transponders for coverage from western India and Pakistan to Borneo, the Philippines and south-eastern China. The ST 1 satellite was launched in August 1998. Two ground control stations are located in Seletar (Singapore) and Taipei (Taiwan).
Pad

Ariane Launch Area 2, Guiana Space Centre, French Guiana
82nd launch from Ariane Launch Area 2, 5th this year · 118th from Guiana Space Centre, French Guiana
119 launches from this pad · 336 from Guiana Space Centre, French Guiana
119 days after the previous launch from this pad
All launches from Guiana Space Centre, French GuianaOpen in maps
Questions
When did ST-1 launch?
ST-1 launched on August 25, 1998. The time is known to the hour, not the minute.
Where can I watch ST-1?
No webcast is on record for this launch.
What rocket launched ST-1?
Ariane 44P, flown by Arianespace. Ariane 44P spec sheet
Where did ST-1 launch from?
Ariane Launch Area 2, Guiana Space Centre, French Guiana.
What orbit did ST-1 reach?
ST-1, one of 2 catalogued objects, reached a 298 × 35,764 km orbit inclined 3.8°.
How many satellites did ST-1 launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).
