At 20:22 5/06/03, Björn Gimle wrote in part: >For using the WWW interface there ought >to be an observatory location = Earth's Centre, but I haven't found one, >and site elevation must be > -20 km. Bjorn and others. The Horizon system uses the Minor Planet Centre observatory codes. In this system observatory code 500 is geocenter. You can of course enter your own lat/long, choose an observatory or a major city close to you. After all this system wasnt originally meant to handle objects close to Earth. If you use the WWW interface you have to put up with distances in AU, but the number of significant figures is enough to get meaningful values in Km. Tony Beresford ----------------------------------------------------------------- To unsubscribe from SeeSat-L, send a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@satobs.org List archived at http://www.satobs.org/seesat/seesatindex.html
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