Decay Update Pegasus + Delta R/B

Harro.Zimmer (Harro.Zimmer@t-online.de)
Mon, 4 Jan 1999 13:52:37 +0100

1998-046J (25421) Pegasus R/B 1
Today (UTC) SpaceCom released two decay updates:  
           No. 1 (prepared 01.04 UTC) : Jan 4, 23:47 UTC  +/- 15 hours
That was nearly identical with my yesterday MPM  prediction.
           
           No. 2 (prepared 11:59 UTC) :     Jan 4, 22:52 UTC  +/- 07 hours
MPM shows now with the morning(UTC) ELSETs: Jan 4, 22:34 UTC  +/- 03 hours

This good agreement also in the shift of the predicted decay time is no
miracle or pure chance. It reflects only the similiarity of the prediction
methods.

1998-066F (25532) Delta 2 R/B
SGP4 and MPM shows with last 24 hour ELSETs clearly that the relatively  old 
SpaceCom prediction  Jan 6, 14:51 UTC  is too early. My estimate:
                     Jan 7, 04:45 UTC +/- 04 hours

    
Harro

Harro.Zimmer@t-online.de

Berlin, Germany