I thought I had predictions for a known geosynch flasher in that location in the sky, and Mike found that TDF 1 (19621, 88-98A) was a good match. Either the period or the half-period was about 16.5 seconds. Looks like the above 16.5 seconds is the HALF-period for TDF-1 based on flash period observations from previous SeeSat posts: Aug 16, 99 - period 29.24 sec -- Rick Baldridge Aug 23, 99 - period 29.666 sec - Rob Matson Aug 31, 99 - period 30.27 sec - Rick Baldridge Sep 19, 99 - period 31.79 sec - Tony Beresford, Australia Sep 23, 99 - period 32.11 sec - Tony Beresford Current Elset: TDF-1 1 19621U 88098A 00031.00678155 -.00000222 +00000-0 +10000-3 0 02431 2 19621 002.8278 079.6649 0005558 203.9212 156.0164 00.99195457038206 If you haven't seen this naked-eye geo-flasher, I highly recommend it. Some flashes can reach +1 mag. But like Superbird-A, the flashes are only visible during a specific "window" of about 25 minutes in duration. Further observations are needed to define the rotational axis and observing windows across the USA. RICK BALDRIDGE Campbell, CA N37.262 W121.977 ----------------------------------------------------------------- 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 : Mon Feb 07 2000 - 09:43:57 PST