Re: Value of timing shadow entry (was Mir and Shadow Entry Q)

From: Bjoern Gimle (b_gimle@algonet.se)
Date: Sun Jan 16 2000 - 04:40:23 PST

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    >
    >How does one calculate the TLE from sets of observations?  I am interested
    in
    
    
    There are programs that can help:
    
    First (or FirstOrb) makes a circular orbit from two points
    FitElem (by Mike McCants) improves an approximate elset by manual iteration
    Elcor (Hirose/McCants) automates this, but may diverge. Iterations can be
    manually adjusted.
    
    Program links found on
    >the math of it.
    >
    Celestial Mechanics textbooks were discussed recently on SeeSat-L
    thread starting with
    http://www2.satellite.eu.org/seesat/Jan-2000/0085.html
    (0087, 0090, 0091 +?)
    
    -- bjorn.gimle@tietotech.se (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         --
    -- SeeSat-L / Visual Satellite Observer Home Page found at   --
    -- http://www2.satellite.eu.org/satintro.html      --
    
    
    
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