Abstract:
The larger map is centered on the south pole and is based on radar images obtained using Arecibo Observatory and Green Bank Telescope (Cornell University/Smithsonian Institution). The inset map shows solar permanently shaded regions (PSRs) larger than 10 km^2 as well as an earthshine model based on Lunar Reconnaissance Orbiter Laser Altimeter (LOLA) data (NASA Goddard Space Flight Center). Polar stereographic projection is used with scale true at the pole.