Recorded mission
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United Launch Alliance
Atlas V 401 | CLIO (USA-257)
Recorded mission coverage
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Mission brief
The flight at a glance.
CLIO is a secret satellite procured by an unidentified US Government Agency from Lockheed Martin. The satellite is likely based on a commercial A2100A bus. Purpose and mission is not known.
Open the full mission →Published flight sequence
Know what comes next.
Planned timings relative to the target. These steps do not indicate live progress.
A flight sequence has not been published for this mission.