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Explorer 37 SOLRAD 9 Solar-Radiation Research Spacecraft Family

Explorer 37, also known as SOLRAD 9, was a Naval Research Laboratory and NASA solar-radiation satellite launched on March 5, 1968. Its spin-stabilized photometers, scintillation counter, and Geiger-Mueller detectors provided continuous overlapping measurements of solar X-ray and ultraviolet emissions to characterize spectral changes with solar activity.

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Identity

Aliases
Explorer 37Explorer XXXVIISOLRAD 9SOLRAD-91968 017ASolar Radiation 9Explorer 37 spacecraft
Family Name
Explorer 37
Full Name
Explorer 37 SOLRAD 9 Solar-Radiation Research Spacecraft Family
Roles
orbiterobservatoryresearch
Status
retired
Type
spacecraft

Details

Description
Explorer 37, also known as SOLRAD 9, was a Naval Research Laboratory and NASA solar-radiation satellite launched on March 5, 1968. Its spin-stabilized photometers, scintillation counter, and Geiger-Mueller detectors provided continuous overlapping measurements of solar X-ray and ultraviolet emissions to characterize spectral changes with solar activity.
First Flight Year
1,968
Last Flight Year
1,990

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Creation Time
August 14, 2026 at 07:52:31 UTC
Updated Time
August 14, 2026 at 07:52:31 UTC