SEA LAUNCH
Zenit 3SL | Intelsat 21
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Aug 19, 2012 at 06:54 UTC
▸ Flight profile›
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PADLaunch Platform Odyssey
SITESea Launch →LAUNCH DETAILS
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 552a9a15-00fc-431c-8e5a-8cb79ea5e070
Reported date: Aug 19, 2012 at 06:54 UTC
Last synced: 38 seconds ago
This launch date and time are confirmed by the launch provider. Countdown is active.
LAUNCH MAP
PAD WEATHER
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VEHICLE
MANUFACTURER
Sea Launch
VARIANT
3SL
FLIGHTS
36
SUCCESSES
33
SUCCESS RATE
91.7%
FREQUENTLY ASKED QUESTIONS
When is the Zenit 3SL | Intelsat 21 launch?
The Zenit 3SL | Intelsat 21 is scheduled for Sunday, August 19, 2012 at 6:54 AM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for Zenit 3SL | Intelsat 21?
The Zenit 3SL | Intelsat 21 mission uses the Zenit rocket, manufactured by Sea Launch. The Zenit has flown 36 times with a 91.7% success rate.
Where is the Zenit 3SL | Intelsat 21 launching from?
The launch takes place from Launch Platform Odyssey at Sea Launch.
Who is launching Zenit 3SL | Intelsat 21?
The Zenit 3SL | Intelsat 21 is operated by Sea Launch.
Can I watch the Zenit 3SL | Intelsat 21 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: Aug 19, 2012 at 06:54 UTC
NET (No Earlier Than) confirmed by Sea Launch
Mar 29, 2026 00:02 UTC
Launch completed successfully
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 38 seconds ago
●Launch Library 238 seconds ago
Launch ID: 552a9a15-00fc-431c-8e5a-8cb79ea5e070
●Open-Meteo Weather3 days ago
Pad weather at 0, -154
Mission Profile
Zenit 3SL | Intelsat 21 was a Zenit 3SL mission operated by Sea Launch that lifted off from Launch Platform Odyssey, Sea Launch on August 19, 2012. The launch was a success.