Demos the Constants macro.
Many variations of definitions of these constants exist, usually equal to within 1 part in 1000. Take note of this when making uncertainty estimates.
Use for consistent definition of physical constants. R_E = 6 371 200. meters (Mean Earth radius used in Geopack library and IGRF model) http://www.ngdc.noaa.gov/IAGA/vmod/igrf8.html
AU = 149 597 870 691. meters (Approximate mean distance between the Earth and Sun) http://neo.jpl.nasa.gov/glossary/au.html
MODULE Constants CATEGORY CISM_DX_General DESCRIPTION Geophysical constants (MKS) OUTPUT R_E; value or value list or field; Earth radius in meters OUTPUT AU; value or value list or field; Astronomical Unit in meters
EXAMPLE VPE SEE ALSO