Op 13-2-2011 02:24, Bill Arnold schreef: > This observation was timed with a digital watch that was calibrated with time.gov just before I went out to watch. The time was stated to be accurate to within 0.2 seconds. My watch was in sync with the time.gov page. The watch was calibrated again when I came back in from outside, after about 20 minutes, time remained the same. I would strongly advise against using webbased time services for time calibration. Even if the time server itself is correct, internal processes in your PC and your ISP's network introduce time lags. Time signals obtained over the internet *never* can be accurate. - 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 ----- _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-l
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