TESLA-10 LOCATED DATA TAPE FORMAT DESCRIPTION ============================================= FIELD CONTENTS FORMAT DESCRIPTION ===== ======== ====== =========== 1 - 7 Line Number (I7) 8 - 13 Fiducial Number (I6) 14 - 16 Flight Number (I3) 17 - 20 day (I4) Julian Day 21 - 29 time (F9.1) Time after midnight (s) 30 - 39 Easting (F10.2) AMG Easting 40 - 50 Northing (F11.2) AMG Northing 51 - 58 rawcos (F8.2) Raw Cosmic count (cps) 59 - 66 rawtot (F8.2) Raw Total count (cps) 67 - 73 rawpot (F7.2) Raw Potassium count (cps) 74 - 80 rawura (F7.2) Raw Uranium count (cps) 81 - 87 rawtho (F7.2) Raw Thorium count (cps) 88 - 95 levtot (F8.2) Corrected & levelled Total count (cps) 96 - 102 levpot (F7.2) Corrected & levelled Potassium count (cps) 103 - 109 levura (F7.2) Corrected & levelled Uranium count (cps) 110 - 116 levtho (F7.2) Corrected & levelled Thorium count (cps) 117 - 125 gpsalt (F9.2) GPS Altitude - Height above sea level (m) 126 - 133 radalt (F8.2) Radar Altimeter - Height above ground (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 - NORTHWEST TASMANIA CLIENT: Tasmania Development & Resources AREA: Northwest Tasmania (& Norfolk Range) DATE: May 1996 AIRBORNE SURVEY SPECIFICATIONS ------------------------------ ACQUISITION BY: TESLA AIRBORNE GEOSCIENCE TESLA JOB No. TA2294 AIRCRAFT: VH - BNZ DATE OF SURVEY: April 1996 MAGNETOMETER: Scintrex Cesium Vapour Model CS2 Resolution 0.001nT SPECTROMETER: Exploranium GR820 Crystal volume 33.5 litres RECORDING INTERVAL: Magnetometer 0.1 sec (approx 7m) Spectrometer 1.0 sec (approx 70m) TERRAIN CLEARANCE: 90m NW TASMANIA AREA LINES: Spacing: 200m flight lines, 2000m tie lines Direction: E-W flight lines, N-S tie lines NORFOLK RANGE LINES: Spacing: 100m flight lines, Ties where practical Direction: 162-342 flight lines, 072-252 tie lines NAVIGATION: Novatel GPS Differentially Post Processed GRID COORDINATES: AMG Zone 55 COORDINATE DATUM: AGD 84 ACQUISITION SYSTEM: Tesla TAG3 LINE NUMBERS ------------ Northwest Tasmania Area : Traverses 100000 - 169999 Ties 170000 - 179999 Norfolk Range Sub-area : Traverses 200000 - 200669 Ties 200670 - 200690 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. Norfolk Range tie-line numbers are as above. DATA PROCESSING - RADIOMETRICS ------------------------------ COSMIC, AIRCRAFT AND RADON BACKGROUNDS REMOVED STRIPPING AND HEIGHT CORRECTIONS APPLIED DATA TIE-LINE LEVELLED AND/OR MICRO-LEVELLED RADIOMETRIC CORRECTION COEFFICIENTS ----------------------------------- background_coefficients total_count 98.5 potassium 17.7 uranium 0.634 thorium 1.509 cosmic_coefficients total_count 0.867 potassium 0.0534 uranium 0.0421 thorium 0.0428 stripping_coefficients Th_to_U 0.2658 Th_to_K 0.3955 U_to_K 0.7800 U_to_Th 0.0505 K_to_Th 0.0000 K_to_U 0.0060 stripping_height_attenuation Th_to_U 0.00049 Th_to_K 0.00065 U_to_K 0.00069 height_attenuation_coefficients total_count 0.00737 potassium 0.0115 uranium 0.0095 thorium 0.00786 maximum_height 250.0 (i.e. radalt clipped to max. of 250m for corrections) Radon removal by the Spectral Ratio Technique. Average livetime = 0.880 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