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Solar Radiation Detectors

NSSDCA ID: 1968-017A-01

Mission Name: SOLRAD 9
Principal Investigator:Mr. Robert W. Kreplin


This experiment consisted of 14 detectors covering the ranges 20 to 80 keV, 0.5 to 60 A, and 1080 to 1350 A. The detectors were designed to measure wavelength and flux shifts of solar radiation during periods of low and high solar activity. The detectors were standardized photometers similar to those flown on SOLRAD 8. Data from three pairs of these detectors, covering the range 0.5 to 16 A, were stored in the onboard memory to provide full time coverage, while the other data were transmitted in real time only (real-time data were recorded for at least 10 min per orbit). The UV and 20- to 80-keV detectors failed shortly after launch.

Alternate Names

  • SOLRAD9/SolarRadiationDetectors

Funding Agency

  • Department of Defense-Department of the Navy (United States)


  • Solar Physics: X-Ray

Additional Information

Questions and comments about this experiment can be directed to: Coordinated Request and User Support Office



NameRoleOriginal AffiliationE-mail
Dr. Talbot A. ChubbOther InvestigatorUS Naval Research Laboratory
Dr. Herbert D. FriedmanOther InvestigatorUS Naval Research Laboratory
Mr. Robert W. KreplinPrincipal InvestigatorUS Naval Research,
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