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Apollo 15 (July 26 – August 7, 1971) was the ninth crewed mission in the Apollo program and the fourth Moon landing. It was the first J mission, with a longer stay on the Moon and a greater focus on science than earlier landings. Apollo 15 saw the first use of the Lunar Roving Vehicle.
Apollo 15 was the first of the Apollo program's "J" Missions [2] which used an enhanced Lunar Module that was capable of supporting a 3-day stay on the lunar surface *and* the delivery of the Lunar Roving Vehicle (LRV or "Rover") to the surface to allow the crew to extend the range of their exploration and to provide remote TV coverage.
Orbital photo of the Hadley-Apennine site; Apollo 15 landing site is marked with a circle. Hadley–Apennine is a region on the near side of Earth's Moon that served as the landing site for the American Apollo 15 mission, the fourth crewed landing on the Moon and the first of the "J-missions", in July 1971.
Apollo 15 was the first mission to carry the Scientific Instrument Module (SIM) bay, which contained a panoramic camera, gamma ray spectrometer, mapping camera, laser altimeter and mass spectrometer. Worden had to operate the shutter and lenses on the cameras and turn on and off the various instruments. During the coast back to Earth, he would ...
France launches its first satellite, Asterix, from a rocket Diamant, becoming the world's third space power. France Diamant: 15 December 1965: First orbital rendezvous (parallel flight, no docking). USA (NASA) Gemini 6A/Gemini 7: 3 February 1966: First soft landing on another world (the Moon). First photos from another world. USSR Luna 9 [19] 1 ...
Apollo 15 had been planned to be the last of the H series missions, but since there would be only two subsequent missions left, it was changed to the first of three J missions. [116] Apollo 13's Fra Mauro mission was reassigned to Apollo 14, commanded in February 1971 by Mercury veteran Alan Shepard, with Stuart Roosa and Edgar Mitchell. [117]
The second day of Apollo 15 centered around the second planned midcourse correction and a preliminary check of the lunar module, Falcon. Mission Control first got the crew to perform a 0.7 second burn of the SPS engine before the planned second course correction. This was designed to isolate the location of the short in the Delta-V Thrust switch.
A Man On The Moon: The Voyages of the Apollo Astronauts. Viking. ISBN 0-670-81446-6. Harland, David M. (1999). Exploring the Moon: The Apollo Expeditions. Springer/Praxis Publishing. ISBN 1-85233-099-6. NASA Manned Spacecraft Center (1972). Apollo 15 Preliminary Science Report. Scientific and Technical Office, NASA. Apollo 15 Flight Journal ...