NAME: CNVCOORD PURPOSE: Convert coordinates from geographic to PACE magnetic or from PACE magnetic to geographic calling sequence: pos = cnvcoord(inpos,[inlong],[height],[/GEO]) the routine can be called either with a 3-element floating point array giving the input latitude, longitude and height or it can be called with 3 separate floating point values giving the same inputs. The default conversion is from geographic to PACE geomagnetic coordinates. If the keyword GEO is set (/GEO) then the conversion is from magnetic to geographic.