## page was renamed from Selv.e
= Selv =

||Category ?||Version ?||

Provided the correct GM and Omega, it will use SGRAV.TXT file to create the surface elevation (same as geoid).


=== Files (Required) ===
 * SGRAV.TXT

=== Input - stdin ===
 * This is sometimes contained in [[MGRAV.IN]]
 * What it asks for  
{{{ 
   GM (km^3/s^2), Omega (deg/day)
     1.728e10
     1617.250674

}}}


=== Output ===
 * some large negative number (e.g.    -65890511.606425241)
 * SHAPEFILES/[[GEOID.TXT]] - gives the geoid in X, Y, Z position.  A 3 column file.
 * SHAPEFILES/[[SHAPEC.TXT]] - gives the height above the surface.  A 4 column file.

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