Hi all, On August 25 and August 27, I obtained a series of photographs of the USA 144/Misty-2 decoy (99-028C). On the request of Pierre Neirinck, I did some simple photometry on the image series, to see whether I could retrieve information out of this on the current tumbling period of the object. The results are very nice (and better than Pierre and me expected), and I obtained a nice diagram of the brightness variation. The brightness behaviour can be approximated by a sinusoid with a period of 71 seconds. A short report with the images used and the diagrams derived can be read here: http://sattrackcam.blogspot.com/2009/08/tumbling-period-of-usa-144misty-2-decoy.html - Marco :-) ----- Dr Marco Langbroek - SatTrackCam Leiden, the Netherlands. e-mail: sattrackcam@wanadoo.nl Cospar 4353 (Leiden): 52.15412 N, 4.49081 E (WGS84), +0 m ASL Cospar 4354 (De Wilck): 52.11685 N, 4.56016 E (WGS84), -2 m ASL SatTrackCam: http://home.wanadoo.nl/marco.langbroek/satcam.html Station (b)log: http://sattrackcam.blogspot.com ----- ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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