Explorer 31 DME-A Direct Measurement Ionosphere Research Spacecraft Family
Explorer 31, also known as DME-A, was a NASA direct-measurement ionosphere satellite launched November 29, 1965. Cylindrical electrostatic, retarding-potential, mass-spectrometer, and related probes measured electron and ion density, temperature, composition, and plasma behavior in the topside ionosphere through 1968.
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Identity
- Aliases
- Explorer 31Explorer XXXIDME-ADirect Measurement Explorer-A1965 95BExplorer 31 spacecraft
- Family Name
- Explorer 31
- Full Name
- Explorer 31 DME-A Direct Measurement Ionosphere Research Spacecraft Family
- Roles
- orbiterobservatoryresearch
- Status
- retired
- Type
- spacecraft
Details
- Description
- Explorer 31, also known as DME-A, was a NASA direct-measurement ionosphere satellite launched November 29, 1965. Cylindrical electrostatic, retarding-potential, mass-spectrometer, and related probes measured electron and ion density, temperature, composition, and plasma behavior in the topside ionosphere through 1968.
- First Flight Year
- 1,965
- Last Flight Year
- 1,968
- Operator
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Assets & Meta
- Creation Time
- August 14, 2026 at 07:43:45 UTC
- Updated Time
- August 15, 2026 at 09:37:15 UTC