On Apr 16 I had very few successful captures, but in one shot I got a bright flash near the start of a faint track, and after careful study another faint track - my first successful measurement of USA 290. I also got USA 290 in the following image, before it disappeared behind a tree. NORAD YYYYMMDDHHMMSSsss HHMMSSs DDMMSS 43941 19 004A 5919 G 202004162157364 57 15 1829315+342953 57 S 43941 19 004A 5919 G 202004162157414 57 15 1841139+345439 57 S 43941 19 004A 5919 G 202004162157549 57 15 1914125+353640 57 S 43674 18 084D 5919 G 202004162157380 57 15 1859421+332532 28 M There is a discrepancy of about 1½ s between the intervals of the first two and the third of 43941, and the predicted times along the track. With careful examination I cannot detect a false track start in the third, and even less likely in the first two, since these match the exposure length. Random error in my camera timing is more probable, since it only has 1s time resolution. -------------------------------------------------------- Björn Gimle, COSPAR 5919 59.2617 N, 18.6169 E, 51 m Satellite observation formats described: http://www.satobs.org/position/IODformat.html --------------------------------------------------------- _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Sun Apr 19 2020 - 06:37:55 UTC
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