Explorer 29 GEOS-A Geodetic Earth-Gravity Research Spacecraft Family
Explorer 29, also known as GEOS-A or GEOS 1, was a NASA geodetic satellite launched November 6, 1965. Optical and radio beacons, transponders, and laser corner reflectors enabled intercomparison of tracking systems, investigation of Earth’s gravitational field, improved worldwide geodetic datum accuracy, and more precise tracking-site coordinates.
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Identity
- Aliases
- Explorer 29Explorer XXIXGEOS-AGEOS 11965 89AExplorer 29 spacecraft
- Family Name
- Explorer 29
- Full Name
- Explorer 29 GEOS-A Geodetic Earth-Gravity Research Spacecraft Family
- Roles
- orbiterobservatoryresearchtechnology_demonstrator
- Status
- retired
- Type
- spacecraft
Details
- Description
- Explorer 29, also known as GEOS-A or GEOS 1, was a NASA geodetic satellite launched November 6, 1965. Optical and radio beacons, transponders, and laser corner reflectors enabled intercomparison of tracking systems, investigation of Earth’s gravitational field, improved worldwide geodetic datum accuracy, and more precise tracking-site coordinates.
- First Flight Year
- 1,965
- Operator
Links
- Official Url
- https://ntrs.nasa.gov/citations/19660002550
Assets & Meta
- Creation Time
- August 14, 2026 at 07:39:44 UTC
- Updated Time
- August 15, 2026 at 09:35:35 UTC