This group provides Association of Lunar and Planetary Observers (ALPO) amateur astronomers with computer programs to assist in the Observing Sections programs.  The ephemeris computer programs are called, “Windows International Mars Patrol Astronomical Calculator (WIMP)” and are computer coded using Microsoft Visual Basic 5.0 Pro Complier utilizing the rigorous VSOP87D methods to compute planetary positions and physical ephemerides. Application programs are located in the “Files” folder and the Ephemeris Listings of the Moon, Sun and planets for the years 2019 – 2030 are contained in each zipped file within “Ephemeris Listings” folder.   Go to Files and read Wimp.pdf.

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