Hi All. Since already compiled and it couldn't hurt... A bit off the topic, but for those who may be interested. A count of objects which position cannot be readily determined. 637 objects from OIG/GSFC SSR vol 40 #7 released August 1999 All satellite status were marked as "N/A" by OIG/GSFC. 90 heliocentric orbit 30 barycentric orbit 10 Mars orbit (see below) 16 selenocentric orbit 6 Venus orbit (see below) 4 solar escape ( 1 position unknown ? ) 455 no information...nearly all associated with Black objects ------ 611 + 26 id'd with 'write off' date ( mainly barycentric per others ) ===== 637 Total 182 without the black objects Assuming data is accessible. Anyone want to take a shot at creating a TLE for an object centered on another planet or our moon? Could be a great challenge for those with very large scopes (limb views only). John Gardner,Jr Hoarder of TLEs email@example.com 76.98569 W 39.00195 N 62.484m ASL ___________________________________________________________________ Get the Internet just the way you want it. Free software, free e-mail, and free Internet access for a month! Try Juno Web: http://dl.www.juno.com/dynoget/tagj.