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On Dec. 17 at about 5:28 EST, the spacecraft dubbed Ebb will undergo a controlled impact into a 2 km high “mountain, a rim of a crater that has been buried in ejecta near north pole of the Moon (coordinates are 75.62°N, 26.63°W). About 30 seconds later Flow will impact, about 40 km apart.
Both spacecraft will hit the surface at 3,760 mph (1.7 kilometers per second). No imagery of the impact is expected because the region will be in shadow at the time.
Additionally, Gruber said that while they hope the Lunar Reconnaissance Orbiter will be able to observe the impact region (at the very least image the region both before and after impact), they don’t expect to there to be a “flash” visible from Earth, and do not believe there will be a significant chance of doing science by kicking up volatiles like LCROSS did, mostly because of the GRAIL spacecraft small size (each about the size of a washing machine) and because of the low angle of impact.
Read more: http://www.universetoday.com/98988/endgame-grail-spacecraft-to-slam-into-lunar-crater-rim-on-december-17/#ixzz2FFHDVTxY
http://www.universetoday.com/98988/endgame-grail-spacecraft-to-slam-into-lunar-crater-rim-on-december-17
Both spacecraft will hit the surface at 3,760 mph (1.7 kilometers per second). No imagery of the impact is expected because the region will be in shadow at the time.
Additionally, Gruber said that while they hope the Lunar Reconnaissance Orbiter will be able to observe the impact region (at the very least image the region both before and after impact), they don’t expect to there to be a “flash” visible from Earth, and do not believe there will be a significant chance of doing science by kicking up volatiles like LCROSS did, mostly because of the GRAIL spacecraft small size (each about the size of a washing machine) and because of the low angle of impact.
Read more: http://www.universetoday.com/98988/endgame-grail-spacecraft-to-slam-into-lunar-crater-rim-on-december-17/#ixzz2FFHDVTxY
http://www.universetoday.com/98988/endgame-grail-spacecraft-to-slam-into-lunar-crater-rim-on-december-17