ARIANESPACE
Ariane 5 ECA | ST-2 & INSAT-4G/GSAT-8
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May 20, 2011 at 20:38 UTC
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Source
PADAriane Launch Area 3
SITEGuiana Space Centre, French Guiana →ORBITGeostationary Transfer Orbit
TYPECommunications
MISSION OVERVIEW
ST-2 is a telecommunication satellite made by Mitsubishi, providing relay services over the Middle East, Central Asia, India and Southeast Asia from its geostationary orbit at 88 degrees East. GSAT-8 is a communication satellite for ISRO.
LAUNCH DETAILS
VEHICLE
Ariane 5 ECAAGENCY
ArianespaceMISSION
ST-2 & INSAT-4G/GSAT-8
MISSION TYPE
Communications
TARGET ORBIT
Geostationary Transfer Orbit
LAUNCH PAD
Ariane Launch Area 3LAUNCH SITE
Guiana Space Centre, French GuianaCOUNTRY
FRA
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 98ff6763-e02c-4f72-a4fe-00169430a4e2
Reported date: May 20, 2011 at 20:38 UTC
Last synced: 3 minutes ago
This launch date and time are confirmed by the launch provider. Countdown is active.
LAUNCH MAP
PAD WEATHER
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VEHICLE — Ariane 5 ECA →
MANUFACTURER
ArianeGroup
VARIANT
ECA
FLIGHTS
73
SUCCESSES
71
SUCCESS RATE
97.3%
Ariane 5 is a heavy-lift launch vehicle, part of the Ariane rocket family.
LAUNCH VIDEOS
ARTICLES & COVERAGE
FREQUENTLY ASKED QUESTIONS
When is the Ariane 5 ECA | ST-2 & INSAT-4G/GSAT-8 launch?
The Ariane 5 ECA | ST-2 & INSAT-4G/GSAT-8 is scheduled for Friday, May 20, 2011 at 8:38 PM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for ST-2 & INSAT-4G/GSAT-8?
The Ariane 5 ECA | ST-2 & INSAT-4G/GSAT-8 mission uses the Ariane 5 ECA rocket, manufactured by ArianeGroup. The Ariane 5 ECA has flown 73 times with a 97.3% success rate.
Where is the Ariane 5 ECA | ST-2 & INSAT-4G/GSAT-8 launching from?
The launch takes place from Ariane Launch Area 3 at Guiana Space Centre, French Guiana.
What orbit is ST-2 & INSAT-4G/GSAT-8 going to?
The ST-2 & INSAT-4G/GSAT-8 mission is targeting Geostationary Transfer Orbit.
Who is launching ST-2 & INSAT-4G/GSAT-8?
The Ariane 5 ECA | ST-2 & INSAT-4G/GSAT-8 is operated by Arianespace.
Can I watch the Ariane 5 ECA | ST-2 & INSAT-4G/GSAT-8 launch live?
Yes. Visit the launch detail page on Space Launch Live for embedded YouTube webcasts, replay videos, and links to live coverage from SpaceX, NASA, NASASpaceflight, and other channels.
LAUNCH TIMELINE
Mar 29, 2026 00:02 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 29, 2026 00:02 UTC
Launch date set: May 20, 2011 at 20:38 UTC
NET (No Earlier Than) confirmed by Arianespace
Mar 29, 2026 00:02 UTC
Launch completed successfully
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 3 minutes ago
●Launch Library 23 minutes ago
Launch ID: 98ff6763-e02c-4f72-a4fe-00169430a4e2
●Open-Meteo Weather3 days ago
Pad weather at 5.24, -52.77
Mission Profile
ST-2 & INSAT-4G/GSAT-8 was a Ariane 5 ECA mission operated by Arianespace that lifted off from Ariane Launch Area 3, Guiana Space Centre, French Guiana on May 20, 2011. The flight carried its payload on a communications mission to Geostationary Transfer Orbit. The launch was a success.