Basic Astronomical Ephemerides
For The Sun, Moon, Planets, Pluto and 15 Major Asteroids
PHP Programs by Jay Tanner

This basic ephemeris set contains 50 programs and related data files for the sun, moon, planets, Pluto and 15 major asteroids.

The planetary computations are based on the 600-year NASA/JPL DE405 ephemeris model which spans the years 1600 to 2200.

The asteroid ephemerides are based on the U.S. Naval Observatory AE98 model which spans the years from 1800 to 2099.

Jay Tanner - 2020