1965-106A (#01843) Cosmos 100 SPACECOM'S FINAL REPORT - prepared Feb 15, 17:36 UTC - shows the decay on 15 February, 17:09 UTC +/- 07 minutes (02.0°S, 125.0°E) on a northbound pass over the Indonesian Islands. This decay time was also for SPACECOM a surprise if you look on their 06 and 02 HOURS BEFORE decay messages (17:47 UTC +/- 04 hours and 17:42 UTC +/- 03 hours). The small FINAL REPORT decay window (+/- 07 minutes) has normally no observational background. SPACECOM closed recently very often their files with these window. MPM + REENTRY delivers with the ELSETs 02046.473... - 0246.685... (SFX 195, ap 004) the decay with the atmosphere model MISES-00: 15 February, 17:55 UTC +/- 11 minutes (08.58°N, 291.38°E) on a descending pass over Venezuela. Input SPACECOM'S atmosphere model Jacchia-70 shows: 15 February, 17:46 UTC +/- 11 minutes (40.24°N, 274.37°E) on the same descending pass over Ohio. My statement that SPACECOM'S final decay data were "unpredictable" from the lasts ELSETs also with other sophisticated methods was confirmed by the analysis from the AEROSPACE CORPORATION with their decay result 18:27 UTC +/- 30 minutes. I suggest that SPACECOM'S final conclusion based on the fact that Cosmos 100 would have passed on its final orbit the tracking station Clear (Alaska) on 17:32 UTC with a maximum elevation of about 65°. The negative observation explained SPACECOM'S issued data on 17:36 UTC. Harro Harro.Zimmer@t-online.de Berlin, Germany ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Sat Feb 16 2002 - 12:46:16 EST