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    Re: Geodesic Data
    From: Vic Fraenckel
    Date: 2002 Oct 24, 05:33 -0400

    Gaston,
    
    Here are the values for the equatorial and polar radii that you requested. I
    cut them out of one of my programs. The array named ellipseMajor() contains
    the equatorial radii, the one named ellipseMinor() contains the polar radii
    and the one named ellipseName() contains the name of the ellipse. The radii
    are in meters.
    
    I hope this helps. Good luck on your homework!
    
    Vic
    
    
      'ellipsoid major axes in meters
      ellipseMajor(1) = 6377563.396       '1  airy
      ellipseMajor(2) = 6377340.189       '2  airy modified
      ellipseMajor(3) = 6378160#          '3  australian national
      ellipseMajor(4) = 6377397.155       '4  bessel 1841
      ellipseMajor(5) = 6378206.4         '5  clarke 1866 - NAD27
      ellipseMajor(6) = 6378249.145       '6  clarke 1880
      ellipseMajor(7) = 6377276.345       '7  everest
      ellipseMajor(8) = 6377304.063       '8  everest modified
      ellipseMajor(9) = 6378166#          '9  fischer 1960
      ellipseMajor(10) = 6378155#         '10  fischer 1960 modified
      ellipseMajor(11) = 6378150#         '11 fischer 1968
      ellipseMajor(12) = 6378160#         '12 geodetic reference system 1967
      ellipseMajor(13) = 6378137#         '13 geodetic reference system 1980
      ellipseMajor(14) = 6378200#         '14 helmert
      ellipseMajor(15) = 6378270#         '15 hough
      ellipseMajor(16) = 6378388#         '16 international
      ellipseMajor(17) = 6378245#         '17 krassovsky
      ellipseMajor(18) = 6378160#         '18 south american
      ellipseMajor(19) = 6378165#         '19 wgs 60
      ellipseMajor(20) = 6378145#         '20 wgs 66
      ellipseMajor(21) = 6378135#         '21 wgs 72
      ellipseMajor(22) = 6378137#         '22 wgs 84
    
      'ellipsoid minor axes in meters
      ellipseMinor(1) = 6356256.909       '1  airy
      ellipseMinor(2) = 6356036.205       '2  airy modified
      ellipseMinor(3) = 6356774.719       '3  australian national
      ellipseMinor(4) = 6356078.963       '4  bessel 1841
      ellipseMinor(5) = 6356583.8         '5  clarke 1866 - NAD27
      ellipseMinor(6) = 6356514.87        '6  clarke 1880
      ellipseMinor(7) = 6356075.413       '7  everest
      ellipseMinor(8) = 6356103.039       '8  everest modified
      ellipseMinor(9) = 6356784.284       '9  fischer 1960
      ellipseMinor(10) = 6356773.32       '10  fischer 1960 modified
      ellipseMinor(11) = 6356768.337      '11 fischer 1968
      ellipseMinor(12) = 6356774.516      '12 geodetic reference system 1967
      ellipseMinor(13) = 6356752.314      '13 geodetic reference system 1980
      ellipseMinor(14) = 6356818.17       '14 helmert
      ellipseMinor(15) = 6356794.343      '15 hough
      ellipseMinor(16) = 6356911.946      '16 international
      ellipseMinor(17) = 6356863.019      '17 krassovsky
      ellipseMinor(18) = 6356778.304      '18 south american
      ellipseMinor(19) = 6356783.287      '19 wgs 60
      ellipseMinor(20) = 6356759.769      '20 wgs 66
      ellipseMinor(21) = 6356750.52       '21 wgs 72
      ellipseMinor(22) = 6356750.321      '22 wgs 84
    
      'ellipsoid common names
      ellipseName(1) = "Airy"                     '1
      ellipseName(2) = "Airy Modified"            '2
      ellipseName(3) = "Australian"               '3
      ellipseName(4) = "Bessel 1841"              '4
      ellipseName(5) = "Clark 1866 - NAD27"       '5
      ellipseName(6) = "Clarke 1880"              '6
      ellipseName(7) = "Everest"                  '7
      ellipseName(8) = "Everest Modified"         '8
      ellipseName(9) = "Fischer 1960"             '9
      ellipseName(10) = "Fischer 1960 Modified"   '10
      ellipseName(11) = "Fischer 1968"            '11
      ellipseName(12) = "Geodetic Reference 1967" '12
      ellipseName(13) = "Geodetic Reference 1980" '13
      ellipseName(14) = "Helmert"                 '14
      ellipseName(15) = "Hough"                   '15
      ellipseName(16) = "International"           '16
      ellipseName(17) = "Krassovsky"              '17
      ellipseName(18) = "South American 1969"     '18
      ellipseName(19) = "WGS-60"                  '19
      ellipseName(20) = "WGS-66"                  '20
      ellipseName(21) = "WGS-72"                  '21
      ellipseName(22) = "WGS-84"                  '22
    
    ________________________________________________________
    
    Victor Fraenckel - The Windman                 vfraenc1{at}nycap.rr.com
    KC2GUI                                                      www.windsway.com
    
          Home of the WindReader Electronic Theodolite
                                   Read the WIND
    
    "Victory at all costs, victory in spite of all terror, victory however long
    and hard the road may be; for without victory there is no survival."
    - Winston [Leonard Spencer] Churchill (1874 - 1965)
    
    Dost thou not know, my son, with how little wisdom the world is governed?
    -Count Oxenstierna (ca 1620)
    
    ----- Original Message -----
    From: "Gaston Petrocelli" 
    To: 
    Sent: Thursday, October 24, 2002 1:23 AM
    Subject: Geodesic Data
    
    
    | Hello everyone,
    |
    | My name is Gaston Petrocelli and I'm a 3rd. deck officer from the
    uruguayan
    | merchant marine currently taking a post graduate course at the Marine
    | Technical College in Kobe, Japan. I just found this mailing list yesterday
    | and have had a lot of fun while reading you... it's amazing how easy one
    | can forget about classical navigation when modern gadgets do all the work
    | for us. I hope to take advantage of all your knowledge and make some
    | contributions as well.
    |
    | I have a request now, I have to prepare a program to calculate difference
    | of meridional parts under different geodesic systems to present as
    | "homework". The problem is that I haven't been able to access reliable
    | constants to use on my calculations. If anybody knows where I can find
    them
    | online I'd appreciate it greatly. I'm in need of the following Equatorial
    | and Polar Radius: by Bessel, Clark, Hayword, Krasovsky and L. A. U..
    |
    | Thank you very much in advance and hope to hear from you soon.
    |
    |
    | Gaston Petrocelli
    | Merchant Marine Officer
    
    
    

       
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