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Explorer 36 (GEOS-B)

Explorer 36 (GEOS-B or GEOS II) was a dedicated geodetic mission and the second National Geodetic Satellite Program Explorer. NASA records describe its C-band transponder, optical and laser tracking reflectors, and continuation of precise Earth-geodesy investigations.

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Identity

Aliases
Explorer XXXVIExplorer 36GEOS-BGEOS IIGeodetic Earth Orbiting Satellite B1968-002A
Name
Explorer 36 (GEOS-B)
Status
completed

Details

Astronauts
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Description
Explorer 36 (GEOS-B or GEOS II) was a dedicated geodetic mission and the second National Geodetic Satellite Program Explorer. NASA records describe its C-band transponder, optical and laser tracking reflectors, and continuation of precise Earth-geodesy investigations.
Destination
Near-circular, retrograde low Earth orbit at approximately 1,100–1,600 km altitude (105.8° inclination; 112-minute period)
Programs
Start Date
1968-01-11
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Creation Time
August 14, 2026 at 20:39:54 UTC
Updated Time
August 21, 2026 at 11:43:44 UTC

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