Hi Tony, Thanks for that, ...you're probably right ,check out http://tornado.eumetsat.de/cgi/browseQuery for the image...also shows fainter on the 0900 image...so your theory "holds more water". :o) I have the Russian MCC tracking screens from 0500 gmt on video so I'll go back and compare. Thanks again, Regards, john. Subject: Re: Mir de-orbit...final keps...? > At 21:01 23/03/01 , John locker wrote: > > >I ask , because a weather sat image for 0600 Indian Ocean appears to show a > >trail , well south of the anticipated > >re-entry path. > > > >The trail travels south of India , north of Australia and out towards the > >Pacific. > > > >Watching live coverage from the Russian Control Centre it seems the final > >burn was more aggressive than anticipated , perhaps bringing the path > >further south. > John, your hypotheses doesn't make sense. The TOTAL velocity change imparted > by the rockets on MIR/Progress was of the order of 45 meters/second. > If things were more efficent they mean it was the last was maybe at the > outside 30 rather than the planned 25 meters/second. Since MIR had an orbital > velocity of 8000 meters/second, even if all this was applied sideaweays > (which of course it wasnt) it might have changed the inclination > by 180/800 degrees or about 1/5of a degree. > Since the fuel supply was used to exhaustion , no bigger > velocity change is possible. Hardly enough to > change a trajectory over the Ukraine Khazakstan ->China and Japan to one south of India. > Your hypothesis also fails to alllow for the NW to SE trajectory over Fijii. > I think the trace you saw in the metsat image was associated with the > intertopical convergence zone or something similar. > > Tony Beresford > ----------------------------------------------------------------- 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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