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: D14.11: 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=;EAST:F10.2:NULL=-99999.99:UNIT=m:NAME=X_MGA
DEFN 3 ST=RECD,RT=;NORTH:F11.2:NULL=-999999.99:UNIT=m:NAME=Y_MGA
DEFN 4 ST=RECD,RT=;LONGITUD:F20.7:NULL=-9999999999.9999999:NAME=Lon
DEFN 5 ST=RECD,RT=;LATITUDE:F18.7:NULL=-99999999.9999999:NAME=Lat
DEFN 6 ST=RECD,RT=;Z:F9.2:NULL=-9999.99:NAME=Z
DEFN 7 ST=RECD,RT=;MagBase:F10.2:NULL=-99999.99:NAME=Source: .\Database BaseMag\A901 - Bas
DEFN 8 ST=RECD,RT=;MagTF:F7.1:NULL=-999.9:NAME=MagTF
DEFN 9 ST=RECD,RT=;MagDiu:F7.1:NULL=-999.9:NAME=MagDiu
DEFN 10 ST=RECD,RT=;MagTieL:F7.1:NULL=-999.9:NAME=MagTieL
DEFN 11 ST=RECD,RT=;MagMicL:F10.1:NULL=-999999.9:NAME=MagMicL
DEFN 12 ST=RECD,RT=;DTM:F10.1:NULL=-999999.9:NAME=DTM
DEFN 13 ST=RECD,RT=;Radar:F10.2:NULL=-99999.99:NAME=Radar
DEFN 14 ST=RECD,RT=;RxAlt:F10.2:NULL=-99999.99:NAME=RxAlt
DEFN 15 ST=RECD,RT=;PLM:F10.2:NULL=-99999.99:NAME=PLM
DEFN 16 ST=RECD,RT=;Gtime:F10.2:NULL=-99999.99:NAME=Gtime
DEFN 17 ST=RECD,RT=;dBdtZ[13]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[13]
DEFN 18 ST=RECD,RT=;dBdtZ[14]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[14]
DEFN 19 ST=RECD,RT=;dBdtZ[15]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[15]
DEFN 20 ST=RECD,RT=;dBdtZ[16]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[16]
DEFN 21 ST=RECD,RT=;dBdtZ[17]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[17]
DEFN 22 ST=RECD,RT=;dBdtZ[18]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[18]
DEFN 23 ST=RECD,RT=;dBdtZ[19]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[19]
DEFN 24 ST=RECD,RT=;dBdtZ[20]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[20]
DEFN 25 ST=RECD,RT=;dBdtZ[21]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[21]
DEFN 26 ST=RECD,RT=;dBdtZ[22]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[22]
DEFN 27 ST=RECD,RT=;dBdtZ[23]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[23]
DEFN 28 ST=RECD,RT=;dBdtZ[24]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[24]
DEFN 29 ST=RECD,RT=;dBdtZ[25]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[25]
DEFN 30 ST=RECD,RT=;dBdtZ[26]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[26]
DEFN 31 ST=RECD,RT=;dBdtZ[27]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[27]
DEFN 32 ST=RECD,RT=;dBdtZ[28]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[28]
DEFN 33 ST=RECD,RT=;dBdtZ[29]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[29]
DEFN 34 ST=RECD,RT=;dBdtZ[30]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[30]
DEFN 35 ST=RECD,RT=;dBdtZ[31]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[31]
DEFN 36 ST=RECD,RT=;dBdtZ[32]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[32]
DEFN 37 ST=RECD,RT=;dBdtZ[33]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[33]
DEFN 38 ST=RECD,RT=;dBdtZ[34]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[34]
DEFN 39 ST=RECD,RT=;dBdtZ[35]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[35]
DEFN 40 ST=RECD,RT=;dBdtZ[36]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[36]
DEFN 41 ST=RECD,RT=;dBdtZ[37]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[37]
DEFN 42 ST=RECD,RT=;dBdtZ[38]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[38]
DEFN 43 ST=RECD,RT=;dBdtZ[39]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[39]
DEFN 44 ST=RECD,RT=;dBdtZ[40]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[40]
DEFN 45 ST=RECD,RT=;dBdtZ[41]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[41]
DEFN 46 ST=RECD,RT=;dBdtZ[42]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[42]
DEFN 47 ST=RECD,RT=;dBdtZ[43]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[43]
DEFN 48 ST=RECD,RT=;dBdtZ[44]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[44]
DEFN 49 ST=RECD,RT=;dBdtZ[45]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[45]
DEFN 50 ST=RECD,RT=;dBdtZ[46]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[46]
DEFN 51 ST=RECD,RT=;dBdtZ[47]:F20.12:NULL=-99999.999999999999:NAME=dBdtZ[47]
DEFN 52 ST=RECD,RT=;BfieldZ[13]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[13]
DEFN 53 ST=RECD,RT=;BfieldZ[14]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[14]
DEFN 54 ST=RECD,RT=;BfieldZ[15]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[15]
DEFN 55 ST=RECD,RT=;BfieldZ[16]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[16]
DEFN 56 ST=RECD,RT=;BfieldZ[17]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[17]
DEFN 57 ST=RECD,RT=;BfieldZ[18]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[18]
DEFN 58 ST=RECD,RT=;BfieldZ[19]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[19]
DEFN 59 ST=RECD,RT=;BfieldZ[20]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[20]
DEFN 60 ST=RECD,RT=;BfieldZ[21]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[21]
DEFN 61 ST=RECD,RT=;BfieldZ[22]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[22]
DEFN 62 ST=RECD,RT=;BfieldZ[23]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[23]
DEFN 63 ST=RECD,RT=;BfieldZ[24]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[24]
DEFN 64 ST=RECD,RT=;BfieldZ[25]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[25]
DEFN 65 ST=RECD,RT=;BfieldZ[26]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[26]
DEFN 66 ST=RECD,RT=;BfieldZ[27]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[27]
DEFN 67 ST=RECD,RT=;BfieldZ[28]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[28]
DEFN 68 ST=RECD,RT=;BfieldZ[29]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[29]
DEFN 69 ST=RECD,RT=;BfieldZ[30]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[30]
DEFN 70 ST=RECD,RT=;BfieldZ[31]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[31]
DEFN 71 ST=RECD,RT=;BfieldZ[32]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[32]
DEFN 72 ST=RECD,RT=;BfieldZ[33]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[33]
DEFN 73 ST=RECD,RT=;BfieldZ[34]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[34]
DEFN 74 ST=RECD,RT=;BfieldZ[35]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[35]
DEFN 75 ST=RECD,RT=;BfieldZ[36]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[36]
DEFN 76 ST=RECD,RT=;BfieldZ[37]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[37]
DEFN 77 ST=RECD,RT=;BfieldZ[38]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[38]
DEFN 78 ST=RECD,RT=;BfieldZ[39]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[39]
DEFN 79 ST=RECD,RT=;BfieldZ[40]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[40]
DEFN 80 ST=RECD,RT=;BfieldZ[41]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[41]
DEFN 81 ST=RECD,RT=;BfieldZ[42]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[42]
DEFN 82 ST=RECD,RT=;BfieldZ[43]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[43]
DEFN 83 ST=RECD,RT=;BfieldZ[44]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[44]
DEFN 84 ST=RECD,RT=;BfieldZ[45]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[45]
DEFN 85 ST=RECD,RT=;BfieldZ[46]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[46]
DEFN 86 ST=RECD,RT=;BfieldZ[47]:F20.12:NULL=-99999.999999999999:NAME=BfieldZ[47];END DEFN