Maybe it doesn't do a perfect "figure 8", but Stefano Sposetti has imaged the motion of the Astra group, and there is a photo of the motion of a geostationary satellite in the german astrophotography book "Handbuch der Astrofotografie" (B. Koch). Ulrich > -----Original Message----- > From: Rainer.Kresken@esa.int [mailto:Rainer.Kresken@esa.int] > Sent: Monday, March 05, 2001 2:19 PM > To: Ulrich Beinert > Cc: SeeSat-L@blackadder.lmsal.com > Subject: RE: GEO Sats., figure-8 > > > > >They're not perfectly still over one spot, but > >instead move in a figure-8 (analemma)over the course of a day. > > This is frequently stated but still it is wrong! > > Only a satellite in an orbit with an inclination of several > degrees and a very small eccentricity would theoretically do that. > I would be very surprised if there was any such orbit in real > life! > > Rainer > > > > ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html
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