Re: ISS occulting Venus transiting the Sun

From: Bjoern Gimle (b_gimle@algonet.se)
Date: Thu Dec 04 2003 - 04:26:58 EST

  • Next message: Kevin Fetter: "Re: ISS occulting Venus transiting the Sun"

    Despite your high-precision analysis of Earth-Sun and perigee relations, I see no consideration for the precession of the ISS orbit plane (-5.1 degrees/day).
    
    If the orbit (on the average) stays as low as it is now, I get (thanks, Ken Ernandes, for Vec2TLE!) the same siderial orientation of the orbit as on June 18,2003, but then the Sun would have been some +ten degrees in RA, so the E-S relation was almost identical on June 16,2003.
    
    It may make nice NB passes over Oman, Egypt, Greece, Spain-Italy during the transit!
    
    ISS Venus
    1 25544U 98067A   04159.33513226 -.00000042  00000-0 -33560-6 0  8400
    2 25544  51.6298  18.6515 0006280 188.6155 171.4733 15.65067524316736
    ISS 2003-06-08
    1 25544U 98067A    3159.29489590 -.00000042  00000-0 -33560-6 0  8400
    2 25544  51.6298  69.6638 0006276 250.1909 109.8410 15.65092232259574
    ISS 2003-06-18
    1 25544U 98067A   03169.31953737 -.00000042  00000-0 -33560-6 0  8403
    2 25544  51.6298  18.8309 0006276 288.3513  71.6799 15.65091553261146
    
    > I hope I've answered it
    
    -- bjorn.gimle@tietoenator.com (office)                       --
    -- b_gimle@algonet.se (home)  http://www.algonet.se/~b_gimle   --
    -- COSPAR 5919, MALMA,    59.2615 N, 18.6206 E, 33 m         --
    -- COSPAR 5918, HAMMARBY, 59.2985 N, 18.1045 E, 44 m         --
    
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