May 2002This directory contains any  data files which are used by proceduresin the IDL astronomy library.   These procedures look for these data files in a directory with the environment name ASTRO_DATA (Unix).As of May 2002, this directory contains two files 1.   JPLEPH.405 - FITS file contain the JPL DE405 ephemeris (chebychev	   polynomials based upon the International Celestial  Reference Frame	   (ICRF).    Because of the size of this file it is not distributed           along with the standard IDL Astronomy Library tar or zip files.2.   testpo.405 -- an ASCII file containing sample ephemeris test data for use           the IDL jpl* ephemeris procedure Because of the large size of JPLEPH.405 and testpo.405 they are not includedwith the IDL Astronomy Library .tar or .zip files.   Users who need these filesshould instead fetch them from ftp://idlastro.gsfc.nasa.gov/pub/data