Hello.. I am new to this list.. I am in Martinez, CA I intend on supplying some observations of satellites via time inserted video One thing.. I have not been able to actually locate ObsEntry.. Can I get current elements for USA 193?? I am using HeavenSat and Spacetrack elements, and USA 193 is not in that set.. If it happens to be clear in 3.5 hours, I will try and time the HST.. I am sure everyone know where that is, but it out to be good practice for a first attempt.. Derek www.poyntsource.com/New/index.htm -----Original Message----- From: Christian Kj æ rnet [mailto:ckjarnet@broadpark.no] Sent: Sunday, February 24, 2008 12:10 PM To: SeeSat-L@satobs.org Subject: Possible Observation of USA 193 Debris Hello, I am back on this list after a period unsubscribed, but I have followed the activity here regarding USA 193. I was out looking for debris from USA 193 this evening 24 February around 18:10 UTC and made one possible registration during a 36 degree pass. The observed object passed about 30 arc minutes south of the Heavens Above-predicted track for USA 193 and 3 minutes and 48 seconds early. Here are the detailed information about the observation: Scope CPC-800-XLT (8" Schmidt Cassegrain) Eyepiece 40 mm / 43 degrees (51 times magnification, FOV 50.3 arcmin) Target star: 13 Monoceros (SAO 114034) Mag 4.50 Prediction based on Heavens Above with TLE from 08050.77400802: Predicted passing ca 12 arcmin N of the star at 18:09:45.6 UTC Observed object passed ca 18 arcmin S of the star at ca 18:05:48 UTC (+/- 3 secs) The direction of movement of the object seemed correct through the eyepiece, but I did not look for it with binoculars and only saw the object in the FOV of the scope. In fact, the passing of the object through the field of view happened very quickly and just as I was starting my visual observing and came as a great surprise. I looked a few seconds for other objects and then checked the time on my watch. Therefore the time may be up to +/- 3 seconds wrong. I also was not able to make a comparison estimate of the magnitude of the object, but in hindsight, I guess it could be around mag 6 +/-2 (very rough estimate). In comparison, the pass prediction of USA 193 had mag 2.1. No other objects were seen in the eyepiece through 18:11 UTC. I would appreciate if someone could make a TLE based on the last observed position of USA 193 (the shootdown?) and this observation. Predictions could then be made for this object and tested against future observations in the days to come. If this is indeed a piece of debris from USA 193, it will most likely decay in 2-3 weeks. Best regards, -- Christian Kjærnet Kongsberg, Norway 59.6408 N 09.6402 E Alt 176m ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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