

          TESLA-10 LOCATED DATA TAPE FORMAT DESCRIPTION
          =============================================



             FIELD         CONTENTS            FORMAT      DESCRIPTION
             =====         ========            ======      ===========

            1 -   7        Line Number          (I7)           
            8 -  15        Fiducial Number      (I8)           
           16 -  18        Flight Number        (I3)           
           19 -  22        day                  (I4)        Julian Day   
           23 -  31        time                 (F9.1)      Time after midnight (sec)
           32 -  41        Easting             (F10.2)      AMG easting (m)
           42 -  52        Northing            (F11.2)      AMG northing (m)
           54 -  64        Latitude            (F11.2)      Latitude (deg)
           65 -  75        Longitude           (F11.2)      Longitude (deg)
           77 -  85        diurnal              (F9.2)      Diurnal value from base mag (nT)
           86 -  84        cormag               (F9.2)      TMI - Diurnal corrections applied
							     & IGRF removed (nT)
           95 -  103       levmag               (F9.2)      TMI - levelled (nT)
           104 - 112       radalt               (F8.2)      Radar Altimeter - Height above ground (m)
           113 - 121       gpsalt               (F8.2)      GPS Altitude - Height above sea level (m)


          NOTE:  Where any data item is unknown or undefined
                 the entire output field for the item will be
                 filled with nines in the appropriate format.
                 (eg. format (F10.1) is 99999999.9, while
                      format (I8)    is   99999999)





	AIRBORNE GEOPHYSICAL SURVEY - DUNEDOO

	CLIENT:		North Limited
	AREA:		Dunedoo, New South Wales
	DATE:		April 1997



	AIRBORNE SURVEY SPECIFICATIONS
	------------------------------

	ACQUISITION BY:                        TESLA AIRBORNE GEOSCIENCE
	TESLA JOB No.                                             TA2431
	AIRCRAFT:                                               VH - BNZ
	DATE OF SURVEY:                                       April 1997
	MAGNETOMETER:                             Scintrex Cesium Vapour
	                                                       Model CS2
	                                              Resolution 0.001nT
	SPECTROMETER:                                  Exploranium GR820
	                                      Crystal volume 33.6 litres
	RECORDING INTERVAL:            Magnetometer 0.1 sec (approx  7m)
	                               Spectrometer 1.0 sec (approx 70m)
	TERRAIN CLEARANCE:                                           50m
	LINES:
		Spacing:              200m flight lines, 2000m tie lines
		Direction:               E-W flight lines, N-S tie lines
	NAVIGATION:                                          Novatel GPS
	                                   Differentially Post Processed
	GRID COORDINATES:                                    AMG Zone 55
	COORDINATE DATUM:                                         AGD 66
	ACQUISITION SYSTEM:                                   Tesla TAG3
 
   
   
	LINE NUMBERS
	------------

	Traverses	100000 - 169999
	Ties		170000 - 179999


	The last digit of a line number represents the attempt number of the line.
			0 = first attempt
			1 = second attempt, etc.

	All lines with a 7 as the second digit are tie lines. 


	DATA PROCESSING - MAGNETICS
	---------------------------


	SYSTEM PARALLAX REMOVED
	DIURNAL CORRECTIONS APPLIED
	IGRF REMOVED:                    1995 model upgraded for secular
	                                         variation to April 1997
	                   Base level : 56730.0 nT, Inclination : -62.95
	DATA TIE-LINE LEVELLED AND MICRO-LEVELLED
	


	TESLA-10 PTY LTD
	Head Office :	41 KISHORN RD		NSW Office:	3 FOX CLOSE
			APPLECROSS WA 6153			KARIONG NSW 2250
			ph.  (09) 364 8444			ph.  (043) 400 122
			fax. (09) 364 6575			fax. (043) 400 155


