Sunday, January 1, 2017

COMPTON PEAK BY NASA LUNAR RECONNAISSANCE ORBITER





NASA LUNAR RECONNAISSANCE ORBITER (August 6 -18, 1967 - August 27, 1967) 
Compton Peak (0 - No elevation data)
Northern Hemisphere - Far side
The Moon    

1. In The Earth (Africa, Europe, Atlantic Ocean) seen from Compton Peak, Photo, August 1967 
2. In Compton Crater and its central peak, Photo, August 1967
3. In Compton crater and peak seen from Apollo 16 NASA mission, Photo, April 1972

The  crater and it peak  
Compton is a prominent lunar crater with a central peak (heigh unknown)  that is located in the northern hemisphere on the far side of the Moon. It lies to the east of the Mare Humboldtianum, and southwest of the walled plain Schwarzschild. To the southeast of Compton is the heavily eroded crater Swann. This formation is roughly circular, with a wide, irregular outer rim that varies considerably in width. Parts of the inner wall have terraced steps that form wide shelves along the edge. Within the wall is a floor that has been resurfaced by lava flows some time in the past. This surface has a lower albedo than the surroundings, giving it a slightly darker hue.
At the midpoint of the floor is a formation of mounts that comprise the central peak. This peak is surrounded by a semi-circular ring of hills that lie in the western half of the crater at a radius about half that of the inner edge of the rim. These mounts form jagged rises through the lava-covered surface and lie at irregular intervals from each other.
The interior also contains a set of slender rilles within the ring of hills, primarily in the northwest part of the crater floor. Apart from a small, bowl-shaped craterlet near the eastern rim, the floor only contains a few tiny craterlets.
Source:
NASA, Lunar Nomenclature

The Imager
 Lunar Orbiter 5, the last of the Lunar Orbiter series, was designed to take additional Apollo and Surveyor landing site photography and to take broad survey images of unphotographed parts of the Moon's far side. It was also equipped to collect selenodetic, radiation intensity, and micrometeoroid impact data and was used to evaluate the Manned Space Flight Network tracking stations and Apollo Orbit Determination Program. The spacecraft was placed in a cislunar trajectory and on August 5, 1967 was injected into an elliptical near polar lunar orbit 194.5 by 6,023 kilometres (120.9 mi × 3,742.5 mi) with an inclination of 85 degrees and a period of 8 hours 30 minutes. On August 7 the perilune was lowered to 100 kilometers (62 mi), and on August 9 the orbit was lowered to a 99-by-1,499-kilometre (62 mi × 931 mi), 3 hour 11 minute period.
The spacecraft acquired photographic data from August 6 to 18, 1967, and readout occurred until August 27, 1967. A total of 633 high resolution and 211 medium resolution frames at resolution down to 2 metres (6 ft 7 in) were acquired, bringing the cumulative photographic coverage by the five Lunar Orbiter craft to 99% of the Moon's surface. Accurate data were acquired from all other experiments throughout the mission. The spacecraft was tracked until it struck the lunar surface on command at 2.79 degrees S latitude, 83 degrees W longitude (selenographic coordinates) on January 31, 1968.

No comments:

Post a Comment