Gemini celestial display device study final report
Celestial navigation design for enabling astronaut to determine location of orbiting Gemini spacecraft by visual comparison of actual star field to representation on device
MAP-MATCHING GUIDANCE↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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A survey of attitude sensors for spacecraft
Spacecraft attitude sensors design and operational features - horizon scanners, solar sensors, star trackers, space sextants, and map matchers
SPACECRAFT SENSOR↗