Thanks, Cees. Those are impressive numbers! Tony Mallama On Sunday, February 23, 2020, C. Bassa <cgbsat_at_gmail.com> wrote: > On Sun, Feb 23, 2020 at 3:04 PM Anthony Mallama via Seesat-l > <seesat-l_at_satobs.org> wrote: > > However, additional birds are becoming difficult to find. Any estimates > of > > how many there are? > > Going through the observations that are posted on the SeeSat mailing > list, there are just over 2700 unique objects with at least 10 > observations reported. This is using only IOD observations (of which > there are 328000) and excluding objects with NORAD IDs larger than > 46000. Hence some of the 96XXX and 99XXX objects that we track are not > included. Also, some of the objects in this list will no longer be in > orbit, so treat this as a rough estimate. > > Regards, > Cees > _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Sun Feb 23 2020 - 08:39:55 UTC
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