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    Re: automatic celestial navigation
    From: Gary LaPook
    Date: 2007 Dec 06, 23:21 -0800
    Gary J. LaPook wrote:

    Gary writes:
    
    O.K. but there are only  limited periods during the day when satellites
    are visible, shortly before sunrise and  shortly after sunset, say about
    an hour each. During sunlight you can't see them against the bright sky
    (or the stars either) and after the sun is well down the satellite is in
    the shadow of the earth and is not illuminated.
    
    




    Here is a website that will predict when the space station of the space shuttle will be visible in your area.
    http://spaceflight1.nasa.gov/realdata/sightings/


    Here is a sample of its output for Simi Valley California. Notice that there are only three oportunities to see the interational space station in the next two weeks for a total viewing time of only 5 minutes.


    THE FOLLOWING ISS SIGHTINGS ARE POSSIBLE FROM WED DEC 05 TO THU DEC 20

    SATELLITE
    LOCAL
    DURATION
    MAX ELEV
    APPROACH
    DEPARTURE

    DATE/TIME
    (MIN)
    (DEG)
    (DEG-DIR)
    (DEG-DIR)






    ISS
    Wed Dec 05/05:42 PM
    3
    23
    18 above WNW 13 above NNE
    ISS
    Sat Dec 08/05:13 PM
    1
    10
    10 above NW 10 above NNW
    ISS
    Wed Dec 19/06:01 PM
    1
    18
    10 above NNW 18 above N






    ONLY DAYS WITH SIGHTING OPPORTUNITIES ARE LISTED

    THE FOLLOWING SHUTTLE SIGHTINGS ARE POSSIBLE FROM FRI DEC 07 TO SAT DEC 22

    SATELLITE
    LOCAL
    DURATION
    MAX ELEV
    APPROACH
    DEPARTURE

    DATE/TIME
    (MIN)
    (DEG)
    (DEG-DIR)
    (DEG-DIR)






    SHUTTLE
    Wed Dec 19/05:51 PM
    < 1
    14
    10 above N 14 above N
    SHUTTLE
    Thu Dec 20/06:03 PM
    2
    34
    12 above NNW 34 above N
    SHUTTLE
    Fri Dec 21/06:16 PM
    3
    50
    11 above WNW 38 above S






    ONLY DAYS WITH SIGHTING OPPORTUNITIES ARE LISTED

    This data last updated on 6 Dec 2007 19:08:37 GMT

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