Copyright Information: Some parts of the C source code in this package were ported partly form NORAD's Spacetrack report #3, which included FORTRAN source for SGP, SGP4, SDP4, SGP8 and SDP8. According to a statement in that report, the document is free of copyrights and open to unlimited public distribution. Other parts of the C source code in this package were ported from Pascal code provided by Dr. TS. Kelso on his CelesTrack website at http://celestrack.com/ . I have reproduced the copyright information regarding the Pascal source I used below: { Author: Dr TS Kelso } { Original Version: 1991 Oct 30} { Current Revision: 1992 Sep 03} { Version: 1.50 } { Copyright: 1991-1992, All Rights Reserved } I make no copyright claims to the C ports in this package as I used the above material downloaded from the Internet to produce it. I suppose any sourcecode used from norad.c must contain the above copyright statement by Dr. TS. Kelso. Neoklis Kyriazis April 10 2001.