1 XYZLONLAT   Convert betwen Geocentric XYZ and Longitude,Latitude,Altitude
        XYZLONLAT

    Convert Observatory coordinates betwen Geocentric XYZ and Longitude,Lat-
    itude,Altitude

    If any of the XYZ is non zero, it converts from XYZ to  Lon,  Lat,  Alt,
    otherwise from Lon, Lat, Alt to XYZ.

    Distances must be in meters.


2 XYZ$
        TASK\REAL "Geocentric coordinates" XYZ$[3]

    Geocentric coordinates in meters.

2 LONGITUDE$
        TASK\CHAR "Greenwich East Longitude" LONGITUDE$

    Longitude East of Greenwich meridiant, in sexagesimal notation.

2 LATITUDE$
        TASK\CHAR "Latitude" LATITUDE$

    Latitude of observatory in sexagesimal notation

2 ALTITUDE$
        TASK\REAL "Altitude (in meters)" ALTITUDE$

    Altitude of observatory with respect to the ?? geoid. Note that this al-
    titude may be different from the "usual" altitude of the  site,  defined
    as  "compared  to  what  the sea level would be there", because of local
    gravity effects on the local sea level.

1 ENDOFHELP






























