Morning Derek ( and the other readers) Okay will do for you a little later today-first have to take the boss (wife) week-end shopping.... Ill probably send you the same file I use for observing - it will only contain the files Mike generates so not violating the SPACETRACK agreement. I should have been a bit more long winded in my explanation of how to select what to observe. After you have combined the CLASSFD.TLE, INTTLE.TLE and INT96.TLE files have a look at the high objects in CLASSFD.TLE to see when they were last observed. Since the INTTLE and INT96 files have all been propagated to about the same day ( so not usually a day or two old-depending on when you downloaded the files) you cant use the INT files to determine what needs observing,so hence the use of CLASSFD.TLE to get the date from the epoch of the element set. Hope thats not too confusing. Since I now mainly concentrate on the high altitude stuff I "automatically" follow the routine that during bright moonlight conditions Ill observe LEOS and the brighter geosats. Once the moon disappears from my evening sky Ill start on the fainter geos and work my way across the Clarke belt starting in the east at sunset and usually around the western objects close to local midnight- that way I try and get the brightening effect of the phase angle as the night progresses. If I were a morning observer I would start in the west and work eastwards. Once I have observed all the observable geos I will then start looking for unknown geostationary or other high altitude objects. Hope this helps Cheers Greg ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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