Telescope used was a 14 inch, observing a very, very small part of the sky (13 arc seconds across) and on a series of exposures lasting an hour. The date of observation was 25th December 2003 and I am not sure whether the UT stamped on the fits file header is at the beginning or end of the 10 minute image cycle. I suspect the time is stamped when the image downloads from the camera. What I can say is the computer time was accurate to within 15 seconds. I believe the field size is about 19 x 13 arc minutes. The only other thing I can add is that the lat and long data was calculated from a map because at that time I did not have a GPS. I think they are pretty close but I am aware how sensitive this data can be. Maybe there is some other way of determining the precise coordinates of Terlingua Ranch from currently available information? Terlingua Ranch in West Texas: Lat and long of the location used were 103d 23m 30s west, 29d 26m north. Let me say I really appreciate the offer of help from everyone on the SeeSat list. Paul Downing United Kingdom > >- date of obs, UTC > >- at what point during the 10 min exposure do the stated image times fall? >e.g. >start, end, middle? > >- precise coordinates of observing site > >Not essential, but helpful would be an estimate of the angular >dimensions of the images. Also, are they inverted or mirror images? > >Ted Molczan >Admin, SeeSat-L -----Original Message----- From: Björn Gimle [mailto:b_gimle@algonet.se] Sent: Saturday, October 08, 2005 11:47 AM To: Cynthia; SeeSat-L@satobs.org Subject: Re: FW: Satellite Trails I never saw a date, just the times and "Christmas"? ----- Original Message ----- From: "Cynthia" ------------------------------------------------------------------------- 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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