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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@nycap.rr.com
KC2GUI                                                      www.windsway.com

      Home of the WindReader Electronic Theodolite
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"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)

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-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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