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Post Info TOPIC: Ranger 8 spacecraft


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Ranger Spacecraft Impact on Moon

This excerpt from "NASA: The 25th Year" shows the final sequence of images from one of the successful Ranger spacecraft that impacted the Moon 1964-1965. The Ranger spacecraft were designed to fly straight down towards the Moon and send images back until the moment of impact. The first six Ranger missions failed for various reasons. Ranger 7, 8 and 9 successfully returned images prior to impacting the Moon. 



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Ranger 8 was a spacecraft designed to achieve a lunar impact trajectory and to transmit high-resolution photographs of the lunar surface during the final minutes of flight up to impact.
Launch date:     February 17, 1965 at 17:05:00 UTC

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L

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45 years ago today the Ranger 8 Moon Impact Mission was launched.

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Ranger 8 was a spacecraft designed to achieve a lunar impact trajectory  and to transmit high-resolution photographs of the lunar surface during the final minutes of flight up to impact.
Ranger 8 reached the Moon on February 20, 1965. The first image was taken at 9:34:32 UT at an altitude of 2510 km. Transmission of 7,137 photographs of good quality occurred over the final 23 minutes of flight. The final image taken before impact has a resolution of 1.5 meters. The spacecraft encountered the lunar surface in a direct hyperbolic trajectory, with incoming asymptotic  direction at an angle of -13.6 degrees from the lunar equator. The orbit plane was inclined 16.5 degrees to the lunar equator. After 64.9 hours of flight, impact occurred at 09:57:36.756 UT on 20 February 1965 in Mare Tranquillitatis at approximately 2.67 degrees N, 24.65 degrees E.

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