re: 2-line elements in Year 2000.

RJ@MS.RIEM.com
Tue, 9 Sep 1997 14:51:00 -0700

I agree with Ian Galpin,  the current TLE (sorry, 2LN) format needs
revision.  Another improvement would be the ability to have hyperbolic
orbits.  All spacecraft going to other planets need this.  The same for
spacecraft making earth flybys.  Hyperbolic orbits have an eccentricity
greater than 1 and negative MM.  Actually MM may not be a very good
notion for these orbits.  I'll have to think on it.  Perhaps we should
get rid of MM altogether and substitute semi-major axis.
			Randy John