Explorer 54 (Atmosphere Explorer-D) was a dedicated upper-atmosphere mission measuring composition, temperature, and ionospheric processes across Earth’s near-space environment.
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Identity
Aliases
Explorer LIVExplorer 54Atmosphere Explorer DAE-D
Name
Explorer 54 (AE-D)
Status
completed
Details
Astronauts
-
Description
Explorer 54 (Atmosphere Explorer-D) was a dedicated upper-atmosphere mission measuring composition, temperature, and ionospheric processes across Earth’s near-space environment.
Destination
Highly eccentric polar Earth orbit at approximately 154 km perigee and 3,804 km apogee (90.1° inclination; 126.9-minute period; initial orbit)