Ed Cannon wrote in response to my summary that: > > UNKNOWN possibly 990907/90907 if so then essentially on path > > predicted by 16 day-old elset but 2 minutes late (I was after > > all looking for it). Compare to observation of same(?) satellite > > 24 Aug 2000 which was 3.5 minutes early. > > I believe that those time differences between two nights, based on > the same elset, could not be the same object ... I think. You are right and I just went back and looked more closely. A bad summary on my part - the observation on Aug 24 01:54:45 UT ran 80 seconds *later* than predicted from the UNKNOWN 990907 elset, and the observation last night at Aug 26 01:33:04 UT ran 99 seconds later than predicted. > However, I'm not sure a consensus was reached on using that system > of designation numbering, ... and there's still the matter of > determining and settling on pseudo-catalog numbers.... I'm still a little fuzzy on designating unknowns. I understand the purpose of getting the catalog number out of range of "real" numbers, and I see how to synthesize a designation number. I also understand that this one of several informal approaches to naming an unknown. I'd like to hear more about this from the more experienced since I anticipate encountering the problem more and more. In particular what do you call a suspected satellite, especially when it is historically "unknown" (like 990907), that runs somewhat close to prediction but not exactly and yet there are no obvious alternative candidates in alldat.tle or other more comprehensive element files (as in the above). How do you link your observation to the satellite you suspect is the same? Thanks for the correction Ed, Wayne -- Wayne Hughes 33.8603N 83.2417W 229m Wolfskin Station 8333 Arnoldsville GA USA ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Sat Aug 26 2000 - 07:32:13 PDT