Ed Light commented about the rather aged 98055A / 25489 elset in Mike McCants' classfd.tle file: > While this element set will be useful for ascertaining the > general position of the orbit plane, I wonder how useful an > almost-two-year-old set could be for current predictions. The rate of decay and passage of time are such that the prediction time uncertainty is of the same order of magnitude as the orbital period, so the object will only be reacquired as the result of a successful search or a chance encounter. Including severely out of date elements serves as a reminder that the object is lost. As I recall, it is a faint object, so it will be a greater than average challenge to recover it. Ted Molczan ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Thu Mar 14 2002 - 10:10:07 EST