Mir reentry - Some remarks

From: Harro Zimmer (Harro.Zimmer@t-online.de)
Date: Sat Mar 24 2001 - 07:57:32 PST

  • Next message: Alan Pickup: "SatEvo decay list #114"

    Maybe it isn now a little bit off topic:
     
    At first the final information from the Russian Mission Control (TSUP).
    
    Burn #1 : 00:32    UTC; Delta V =  9.3 m/s; Post burn orbit: 219/188 km; 
    P = 88.4 minutes.
    Burn #2 : 02.00:24 UTC: Delta V = 10.4 m/s; Post burn orbit: 219/158 km;
    P = 88.1 minutes.
    Burn #3: 05:08     UTC; Delta V = 28.0 m/s  Post burn orbit: not announced.
    
    And quoted from the TSUP release : "The ellipse dissipation Centre coordinates 
    of unburned fragments: 40 south latitude, 160 W longitude."
    
    We have therefore seen a significant steeper descent as originally predicted. 
    
    Remember: The "official" aiming point was much more south (+07) and more east 
    (-20)  My first rough calculation suggests for the final burn a larger Delta V 
    - about 40 m/s - and in consequence a significant lower perigee. The people from 
    ESOC (The European Space Control Center) have also the same impression. After a 
    careful analysis of all data I hope to can deliver a final statement. 
    
    Harro
    
    Harro.Zimmer@t-online.de
    Berlin, Germany
    
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