Chang'e-4 farside landing mission |
Chang'e-4 farside landing mission |
Jul 15 2015, 01:35 PM
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#301
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Junior Member Group: Members Posts: 31 Joined: 10-January 14 Member No.: 7094 |
Preliminary Suggestions for International Cooperation on Chang'E-4 Lunar Probe Xu Y. (China) http://www.unoosa.org/pdf/pres/copuos2015/...2015tech08E.pdf An Introduction of Chang’E-4 Probe: Probe(Lander,Rover)+ Relay Statellite Soft-landing on lunar farside Landing and roving exploration Will be launched between 2018 and 2019 the probe: Chang’E-4 probe,lander and rover have the same technical status with the Chang’E -3; but exploration will be redesigned; the payload will be reconfigered; The name of the probe might be changed. Chang’E-4 probe is a backup spacecraft of Chang’E -3 probe. By now, all platform products of the probe have been manufactured, waiting for further AIT. The probe will be launched by a long March 3B rocket from the Xichang Statellite Launch Center(XSLC) which is the same way with the Chang'E-3 between 2018 and 2019 The relay statellite: will be first launched into a lunar transfer orbit about the end of 2018 in the whole mission, then starts its earth-to-moon jurnery alone, and will enter and run in a Halo orbit around the Earth-Moon L2 point; the design life is 3 years. would provide relay service for the probe and the Earth, and carry out exploration. Engineering objectives are as follow. To realize the first soft landing on the lunar farside and perform exploration in human history. To demonstrate technologies of lunar data relay, landing and roving on complicated terrains of the lunar farside, and lunar night power generation; To perform further detailed survey on lunar environment in order to lay a foundation for subsequent lunar exploration mission. Tentative Scientific objectives are as follow. To study lunar surface dust features and its formation mechanism; To perform in-situ measurement of lunar surface residual magnetism and study its interaction with solar wind; To study lunar surface temperature and particle radiation environment; To perform lunar surface topology and material composition analysis, shallow-layer structure survey and study; To explore and study lunar interior structure of spheres; To perform lunar based VLF astronomical observation and study |
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Aug 25 2020, 04:19 PM
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#302
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Solar System Cartographer Group: Members Posts: 10226 Joined: 5-April 05 From: Canada Member No.: 227 |
"On the back of the moon, the Chang'e-4 lander and the "Yutu-2" lunar rover worked on the lunar surface for more than 600 days today , and the cumulative mileage of the lunar rover exceeded 500 meters , reaching 519.29 meters , setting its own record again . The two devices completed the 21st month day work at 20:35 and 10:46, respectively, and entered the moonlight sleep dormancy. The "Magpie Bridge" relay satellite works normally."
Translated by Google from this site: https://www.weibo.com/ttarticle/p/show?id=2...943316349542#_0 Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Aug 26 2020, 02:24 AM
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#303
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
I just caught up on this thread by reading the last seven months' worth of posts all at once. The large panoramic photos struck me as being very familiar and similar to other lunar surface photos in some way, very different from martian surface photos. There are undoubtedly several ways in which this is true. After trying to put my finger on why, I found myself noticing a fine linear pattern, as though someone dragged a comb over the surface. Moreover, it seems as though there may be an overlay of two such patterns, perhaps at right angles to one another.
Has anyone else noticed this – either in a scholarly fashion or casually? I've rotated and cropped a portion of the Day 14 color photo that seems to illustrate what I'm talking about. The reality of this could be tested with a Fourier transform of surface relief at ~ 1 cm scales, but it would take clean data to eliminate artifacts. As for mechanisms, I would wonder if this could be a function of the last nearby impact that deposited dust on the site. |
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