Thor Delta L | HEOS 2
Launch Successful
L - -- : -- : -- : --
Jan. 31, 1972, 5:20 p.m.
Instantaneous launch window.
Instantaneous launch window.
HEOS 2 was a spin-stabilized spacecraft with a highly eccentric orbit whose apogee occurred at high latitude. Its primary scientific mission was the investigation of interplanetary space and the high-latitude magnetosphere and its boundary in the region around the northern neutral point.
American orbital launch vehicle family with Thor first stage and a delta second stage.
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Space Force test payload contracted through the Defense Innovation Unit’s Other Transaction Agreement with Astra Space.
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Payload consists of two BlackSky Gen-2 high-resolution multi-spectral Earth observation satellites.
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