DEFN 1 ST=RECD,RT=PROJ; RT: A4
DEFN 2 ST=RECD,RT=PROJ; PROJNAME: A42: NAME=projection name, POSC projection name
DEFN 3 ST=RECD,RT=PROJ; ELLPSNAM: A10: NAME=ellipsoid name, POSC compliant ellipsoid name
DEFN 4 ST=RECD,RT=PROJ; MAJ_AXIS: D8.0: UNIT=m, NAME=major_axis, Major axis in units relevant to the ellipsoid definition
DEFN 5 ST=RECD,RT=PROJ; ECCENT: D19.16: NAME=eccentricity, 1/f inverse of flattening
DEFN 6 ST=RECD,RT=PROJ; PRIMEMER: D2.0: UNIT=deg, NAME=prime_meridian,Location of prime meridian relativeto Greenwich
DEFN 7 ST=RECD,RT=PROJ; PROJMETH: A24: NAME=projection_method, eg.Transverse Mercator, Lambert etc
DEFN 8 ST=RECD,RT=PROJ; PARAM1: D2.0: NAME=Proj_par1
DEFN 9 ST=RECD,RT=PROJ; PARAM2: D4.0: NAME=Proj_par2
DEFN 10 ST=RECD,RT=PROJ; PARAM3: D7.4: NAME=Proj_par3
DEFN 11 ST=RECD,RT=PROJ; PARAM4: D7.0: NAME=Proj_par4
DEFN 12 ST=RECD,RT=PROJ; PARAM5: D9.0: NAME=Proj_par5
DEFN 1 ST=RECD,RT=TRNS; RT: A4
DEFN 2 ST=RECD,RT=TRNS; DTMTRNSFM: A24: NAME=Datum_transform
DEFN 3 ST=RECD,RT=TRNS; TRNSFRM1: D2.0: NAME=Trnsfrm_par1
DEFN 4 ST=RECD,RT=TRNS; TRNSFRM2: D2.0: NAME=Trnsfrm_par2
DEFN 5 ST=RECD,RT=TRNS; TRNSFRM3: D2.0: NAME=Trnsfrm_par3
DEFN 6 ST=RECD,RT=TRNS; TRNSFRM4: D2.0: NAME=Trnsfrm_par4
DEFN 7 ST=RECD,RT=TRNS; TRNSFRM5: D2.0: NAME=Trnsfrm_par5
DEFN 8 ST=RECD,RT=TRNS; TRNSFRM6: D2.0: NAME=Trnsfrm_par6
DEFN 9 ST=RECD,RT=TRNS; TRNSFRM7: D2.0: NAME=Trnsfrm_par7
DEFN   ST=RECD,RT=COMM;RT:A4;COMMENTS:A76
DEFN 1 ST=RECD,RT=DATA;RT:A4;FLTLINE:F10.1:NAME=Line number
DEFN 2 ST=RECD,RT=;base:F10.2:NULL=-99999.99:NAME=base
DEFN 3 ST=RECD,RT=;EAST:F10.2:NULL=-99999.99:UNIT=m:NAME=easting
DEFN 4 ST=RECD,RT=;elevation:I10:NULL=-99999999:NAME=elevation
DEFN 5 ST=RECD,RT=;Mag_corr:F10.2:NULL=-99999.99:NAME=Mag_corr
DEFN 6 ST=RECD,RT=;Mag_lock:I10:NULL=-99999999:NAME=Mag_lock
DEFN 7 ST=RECD,RT=;Mag_raw:F10.2:NULL=-99999.99:NAME=Mag_raw
DEFN 8 ST=RECD,RT=;NORTH:F10.2:NULL=-99999.99:UNIT=m:NAME=northing
DEFN 9 ST=RECD,RT=;num_sats:I10:NULL=-99999999:NAME=num_sats
DEFN 10 ST=RECD,RT=;shift:I10:NULL=-99999999:NAME=shift
DEFN 11 ST=RECD,RT=;time:F10.2:NULL=-99999.99:NAME=time;END DEFN