Re: Decay? Fw: (meteorobs) spectacular meteor recorded

From: Tony Beresford (dberesford@adam.com.au)
Date: Wed Oct 20 2004 - 06:31:42 EDT

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    At 06:28 20/10/04, Marco Langbroek wrote:
    >Interesting object filmed in Germany by Sirko Molau. 5 degrees/second would
    >match a decay indeed, although OIG does not give any likely candidates. Movie
    >(see URL's in below message) is very nice!
    >
    >- Marco
    To amplify Marco's remarks. Here is the result of a query on OIG I just did
    to find decay oct 16 to Oct 18.
    
                  Catalog Query For Decay Date Response
    
           2004/10/20 11:24:01 Session time remaining: 01:57:28
    
    --------------------------------------------------------------------
    
    Query return total: 3
    Query Date: 2004/10/20 11:24:03
    
    From: 2004/10/16
    Through: 2004/10/18
    
    Decay Date: Ascending Order
    
    IntID/Name   CatNo Source period   Incl Apogee Perigee      RCS
    ------------ ----- ------ ------ ------ ------ ------- --------
    
    1994-029FW   24123 US       90.2   81.9    292     274   0.0654
    PEGASUS DEB               Launched (1994/05/19) Decayed [2004/10/16]
    
    1987-079BG   28212 CIS      99.2   65.3   1136     304   0.2020
    SL-12 DEB                 Launched (1987/09/16) Decayed [2004/10/16]
    
    2004-040B    28445 CIS       0.0    0.0      0       0   0.0000
    SL-04 R/B                 Launched (2004/10/14) Decayed [2004/10/16]
    
    The Soyuz TM5A rocket decayed around 0850 UT October 16, south of
    Tasmania, so seems unlikely to have lasted nearly 18 hours later.
    
    1987-79BG is on the face of a possiblity, as this is an object in an
    eccentric orbit. The final 5 TLEs show inconsistencies among the
    drag, and eccentricity.
    
    SL-12 DEB    Decayed: 2004/10/16
    1 28212U 87079BG  04288.63542078  .06982031  24391-1  93783-1 0  2121
    2 28212  65.3132 161.7732 0343218  34.6944 327.6015 15.13356361 21860
    SL-12 DEB    Decayed: 2004/10/16
    1 28212U 87079BG  04288.50313333  .37470811  00000-0 176368+0 0  2106
    2 28212  65.3008 162.4599 0150995  39.6482 322.7982 15.09637464 29768
    SL-12 DEB    Decayed: 2004/10/16
    1 28212U 87079BG  04287.48701486  .37074649  00000-0  61027+0 0  2083
    2 28212  65.3296 165.2152 0586030  35.4304 328.4449 14.51812000 21695
    SL-12 DEB    Decayed: 2004/10/16
    1 28212U 87079BG  04287.21018808  .15655790  00000-0  31045+0 0  2077
    2 28212  65.3372 166.0162 0647543  35.7914 328.7918 14.36474610 21662
    SL-12 DEB    Decayed: 2004/10/16
    1 28212U 87079BG  04287.14053186  .14134521  00000-0  28565+0 0  2062
    2 28212  65.3369 166.2079 0656150  36.0400 328.4756 14.34066916 21655
    However the orbit plane transit over Sirko Molau's location
    is around 9 or 17 hours UT, which means it cant be that however confused
    about #28212 the SSC is!
    I think it was a slow meteor, and have said so to Sirko, and
    the meteorobs list.
    Not having seen the Northern Sky much even when I was there 6 years ago,
    I find it difficult to  identify the stars patterns in the movie. Its a really wide,
    like 50 degree FOV. Can somebody tell me what direction the object was moving?
    Tony Beresford
    
    
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