[132], After the mission, Young and Duke served as backups for Apollo 17,[133] and Duke retired from NASA in December 1975. There, they dug a double core and conducted several penetrometer tests along a line stretching 50m (160ft) east of the ALSEP. After several hours of analysis, mission controllers determined that the malfunction could be worked around, and Young and Duke could proceed with the landing. At Station 9, an area known as the "Vacant Lot",[110] which was believed to be free of ejecta from South Ray, they spent about 40 minutes gathering samples. They marveled at the view (including South Ray) from the side of Stone Mountain, which Duke described as "spectacular",[107] then gathered samples in the vicinity. Overlaying the shield is a gold NASA vector, orbiting the Moon. traverse route was just slightly south of the outbound route, and the next stop [101], About 1hour and 22 minutes after arriving at the North Ray crater, they departed for Station 13, a large boulder field about 0.5km (0.31mi) from North Ray. transearth injection could be performed 24 hours earlier than originally [69] A HFE flew, and was successfully deployed, on Apollo 17. the Cape Kennedy launch area was experiencing fair weather resulting from a Just before the end of flight day three at 59 hours, 19 minutes, 45 seconds after liftoff, while 330,902 kilometers (178,673nmi) from the Earth and 62,636 kilometers (33,821nmi) from the Moon, the spacecraft's velocity began increasing as it accelerated towards the Moon after entering the lunar sphere of influence. After flying the lunar module to the Moon's surface on April 21, Young and Duke spent 71 hoursjust under three dayson the lunar surface, during which they conducted three extravehicular activities or moonwalks, totaling 20 hours and 14 minutes. old at the time of the Apollo 16 mission. At 152m (499ft) above the valley floor, the pair were at the highest elevation above the LM of any Apollo mission. in the center is Spook and to the upper left is Flag Crater. post-mission data: [1] The distance The EVA lasted approximately 6 hours, 33 minutes, ending at 3:46 p.m. This maneuver brought the ascent stage to an orbit of [86][87] During the second half of the day, Young and Duke again entered the lunar module to power it up and check its systems, and perform housekeeping tasks in preparation for the lunar landing. 000:09:23.60. made later to have the commander use the lunar module pilots oxygen purge The splashdown site was estimated to be latitude 0.70 002:39:18.42 and translunar injection occurred ten seconds later, at a velocity The crew members and 203:12, good quality television pictures were transmitted from inside the [77] The only holds in the countdown were the ones pre-planned in the schedule, and the weather was fair as the time for launch approached.[2]. firing) was performed at 002:33:36.50. had remained in lunar orbit six hours longer than planned, the LM was powered selected as an astronaut in 1966 and his backup was Captain Edgar Dean Mitchell accidentally tripped over the electronics cable, breaking it, and rendering the fifth human exploration of the Moon. could be accomplished. pilots vision of the stars, realignment of the platform was accomplished using maneuver was possible, and the ascent stage remained in lunar orbit for Although they permitted the lunar landing, NASA had the astronauts return from the mission one day earlier than planned. After the crew They then settled down for their first meal on the surface. At the request of Young and Duke, the moonwalk was extended by ten minutes. in aeronautics and NASA Astromaterials Curation, an integral part of any sample return mission, comprises preparation and allocation of samples for research and education, initial characterization of new samples, and secure storage for the benefit of future generations. [80][93] The availability of the Lunar Roving Vehicle rendered their distance from the targeted point trivial. spectrometer deployment boom stalled during a retract cycle and was, therefore, the CSM was separated from the S-IVB stage, transposed, and docked at of 35,566.1 ft/sec after 1.5 Earth orbits lasting 2 hours 37 minutes 32.21 Ken Mattingly, II (USN), command module pilot; and Lt. similar geological formations in Hawaii. This brought the total [104] After completing more tasks at the ALSEP, they returned to the LM to close out the moonwalk. totaled 211.00 pounds (95.71 kg; official total in kilograms as determined by engineering from the Georgia Institute of Technology in 1952. lunar orbit of 68.0 by 53.1 n mi in preparation for the acquisition of [103] By this point, scientists were beginning to reconsider their pre-mission hypothesis that Descartes had been the setting of ancient volcanic activity, as the two astronauts had yet to find any volcanic material. deorbit, it was not possible to activate the subsatellite until 20 hours after Ries Crater Museum (Nordlingen) - Tripadvisor . Apollo 16's CDR John Young, from the 1972 Technical Debrief: - I got the feeling from looking at Stubby that it was there (meaning it was formed) after Descartes was because of the way the slope was off the mountain around Stubby. orbit with a much shorter lifetime than planned. The Between Following transposition and docking, the crew noticed the exterior surface of the lunar module was giving off particles from a spot where the LM's skin appeared torn or shredded; at one point, Duke estimated they were seeing about five to ten particles per second. launch vehicle systems malfunctions precluded a planned trajectory refinement, This article incorporates public domain material from websites or documents of the National Aeronautics and Space Administration. extravehicular activity for the mission to 22 hours 17 minutes 36 seconds. With Apollo 16, he became the second American, after Jim Lovell, to fly in space four times. the condition. would be designated 1972-031C, the descent stage 1972-031E, and the particles Landed on the Moon, April 1972." revolution into an orbit of 170 by 58 n. mi. lunar surface expedition (AS16-122-19533). [120] The Mass Spectrometer boom did not fully retract following its initial extension, as had happened on Apollo 15, though it retracted far enough to allow the SPS engine to be fired safely when Casper maneuvered away from Orion before the LM began its Moon landing attempt. The second LM extravehicular period began 30 minutes early when the cabin was depressurized at [101][102] The next stop of the day was Buster Crater, a small crater located north of the larger Spook Crater, about 1.6km (0.99mi) from the LM. The drive was smoother than that of the previous day, as the craters were shallower and boulders were less abundant north of the immediate landing site. subsatellite was instrumented to measure plasma and energetic-particle fluxes, not achieved. [125] Likely because of a failure by the crew to activate a certain switch in the LM before sealing it off, it tumbled after separation. capability of the S-band omni-directional antenna system to support the The only [83], When the astronauts were awakened for flight day three, the spacecraft was about 291,000 kilometers (157,000nmi) away from the Earth. The object The Apollo 16 crew trained at Schooner in October 1971, and Apollo 17 astronauts conducted exercises at Schooner and Buckboard Mesa in August 1972. The program would allow the computer to ignore 1981) notes that the Apollo 16 core stems went easily into the soil, and that the LM area where the deep drill core was also taken was only loosely compacted. An hour and a half later, at stations 9 and 10, the LRV range, bearing, and They entered the LM for activation and checkout of the spacecraft's systems. Upon completing their initial procedures, the pair configured Orion for their three-day stay on the lunar surface, removed their space suits and took initial geological observations of the immediate landing site. There was no evidence that showed that Stone Mountain was volcanic. The first EVA took Scott and Irving southward along the edge of Hadley Rille and to the base of Mt. [22] Mattingly then undertook parallel training with Apollo 11's backup CMP, William Anders, who had announced his resignation from NASA effective at the end of July 1969 and would thus be unavailable if the first lunar landing mission was postponed. The CSM was designated CSM-113, and had The third terrain of a lunar highlands region without having high resolution photography The total number of layers in this part of the Apennine Front, . [48], At Alphonsus, three scientific objectives were determined to be of primary interest and paramount importance: the possibility of old, pre-Imbrium impact material from within the crater's wall, the composition of the crater's interior and the possibility of past volcanic activity on the floor of the crater at several smaller "dark halo" craters. maneuver at 176:26:05. The for engine tailoff and other transient effects), showed an apogee and perigee of television press conference started at 243:35 and lasted for 18 minutes. Apollo 16 used to validate findings from the Apollo 15 mission. a 54.2-second propulsive force from the S-IVB auxiliary propulsion system two hours later. [76] This brief lifetime was because lunar mascons were near to its orbital ground track and helped pull PFS-2 into the Moon. Illinois, Mattingly was 36 years old at the time of the Apollo 16 mission. At 038:18:56, was made at 195:03:13 to separate the CSM from the ascent stage. (02:45:05 p.m. EST) on 27 April. A maneuver Further, the capability of the lunar Which landing sites chosen? The SM scientific instrumentation module door was jettisoned The reverse of the photo is signed by Duke's family and bears this message: "This is the family of Astronaut Duke from Planet Earth. ship U.S.S. shredding would have no effect on subsequent LM operations. He had been pilot of Gemini 3 command Then, on May 19-21, 1971, Dave, Jim, Dick Gordon, Jack Schmitt and USGS cratering expert David Roddy made a visit to NTS to get more field experience.] On Monday, May 8, ground service equipment being used to empty the residual toxic reaction control system fuel in the command module tanks exploded in a Naval Air Station hangar. Lunar dust jettisoned at 195:00:12 at an altitude of 59.2 n mi. augmented dietary intake of potassium and a better rest-work cycle that At this point the SaturnV rocket's three stages were powered up, and drinking water was pumped into the spacecraft. 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