RE: Geo local altitude

From: McConahy, Ralph (
Date: Mon Nov 26 2001 - 20:04:26 EST

  • Next message: Bjorn Gimle \(TietoEnator\): "Re: Geo local altitude"

    Bill Mitchell wrote:
    >>Does anyone have a formula (other than
    >>star charting software) for calculating
    >>a geosat's apparent altitude given its 
    >>final parking longitude?
    Elev = arctan[(cos(Lon-SatLon)*cos(Lat)-0.1512)/
    Elev = elevation angle from your location to satellite (deg)
    Lon = your longitude (deg)
    Lat = your latitude (deg)
    SatLon = satellite's longitude (deg)
    SQR = square root
    >>...DirecTV launch is destined for 101° West
    >>Will this be visible for me?
    >>North 42 4' 18"
    >>West  80 8' 33"
    Should be about 37° above your horizon.
      Ralph McConahy
      34.8829N  117.0064W  670m
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