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ArianespaceAriane 44PAriane Launch Area 2, Guiana Space Centre, French Guiana

ST-1

Launched

August 25, 1998

Launch Successful

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.
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

3.8°Inclination
298 × 35764 kmPerigee × apogeefrom mean elements
632.3 minPeriodfrom mean elements
138.6°Ascending node
10278 d agoElement epoch1998-08-25 18:34 UTC · stale

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

Map of Ariane Launch Area 2

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

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).