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Lockheed Martin
Atlas V 431 | INMARSAT 4 F1
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Recorded mission coverage
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Mission brief
The flight at a glance.
Heaviest single payload to geosynchronous transfer orbit to that date. The satellite was to provide L-band mobile communications and wideband data transmission for Inmarsat's global network.
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Planned timings relative to the target. These steps do not indicate live progress.
A flight sequence has not been published for this mission.