Re: Mir keps...?

From: John locker (
Date: Fri Mar 23 2001 - 03:09:37 PST

  • Next message: Thomas A. Troszak: "Mir reentry video"

    Hi Tony,
    Thanks for that,'re probably right ,check out for the image...also shows
    fainter on the 0900 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,
    Subject: Re: Mir keps...?
    > At 21:01 23/03/01 , John locker wrote:
    > >I ask , because a weather sat image for 0600 Indian Ocean appears to show
    > >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
    > 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
    > 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
    > I think the trace you saw in the metsat image was associated with the
    > intertopical convergence zone or something similar.
    > Tony Beresford
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