U. S. Geological Survey Open-File Report 99-404 Cochiti Survey, New Mexico, flown in 1997 by Geoterrex as part of a time-domain electromagnetic survey FINAL MAGNETOMETER DATA - cmlines.asc LOGICAL RECORD LENGTH : 160 BYTES LOGICAL RECORD CONTENTS PARAMETER CHARACTERS CONTENTS 1 1-10 FLIGHT X 1000000 + LINE X 100 + PART 2 11-20 DIRECTION 3 21-30 FIDUCIAL (SECONDS AFTER MIDNIGHT) 4 31-40 YEAR + JULIAN DAY 5 41-50 LATITUDE (CLARKE 1866) (DEGREES X 10.6) 6 51-60 LONGITUDE (CLARKE 1866) (DEGREES X 10.6) 7 61-70 UTM X (METRES) 8 71-80 UTM Y (METRES) 9 81-90 RADAR ALTIMETER (m X 100) 10 91-100 BAROMETRIC ALTIMETER (m X 100) 11 101-110 GPS ELEVATION (m X 100) 12 111-120 DIURNAL (nT X 100) 13 121-130 RAW MAGNETICS (nT X 100) 14 131-140 MAGNETICS - DIURNAL + MEAN (nT X 100) 15 141-150 COMPENSATION (nT X 1000) 16 151-160 I.G.R.F. VALUES (1995) (nT X 100) NOTES ===== Projection : UTM Spheroid : Clarke 1866 Central Meridian : 105 degrees West False easting : 500000 m False northing : 0 m Scale factor : 0.9996 1. Direction codes: 1 - North, 2 - East, 3 - South, 4 - West. 2. The fiducials are in seconds after midnight and are repeated five times for each second. 3. To get to the final gridded magnetic values you must add fields 14 & 15 and then subtract field 16. LINE-ID DIR FST-FID LST-FID TAPE BLOCK REC SAMPLES ----------- --- ------- ------- ---- --------- ----- ------- 13060101 4 54292 54678 1 1 0 1931 13060201 2 54834 55277 1 1932 0 2216 13060301 4 55418 55813 1 4148 0 1976 13060401 2 55953 56385 1 6124 0 2161 13060501 4 56504 56910 1 8285 0 2031 13060601 2 57052 57478 1 10316 0 2131 13060701 4 57607 58010 1 12447 0 2016 13060801 2 58155 58590 1 14463 0 2176 13060901 4 58720 59128 1 16639 0 2041 13061001 2 59277 59697 1 18680 0 2101 13061101 4 59824 60239 1 20781 0 2076 13061201 2 60378 60798 1 22857 0 2101 13061301 4 60929 61325 1 24958 0 1981 14061401 2 54302 54730 1 26939 0 2141 14061501 4 54868 55283 1 29080 0 2076 14061601 2 55424 55842 1 31156 0 2091 11061701 2 67458 67829 1 33247 0 1856 11061801 4 67949 68409 1 35103 0 2301 14061901 4 55970 56386 1 37404 0 2081 14062001 2 56528 56960 1 39485 0 2161 14062101 4 57071 57502 1 41646 0 2156 14062201 2 57636 58064 1 43802 0 2141 14062301 4 58175 58586 1 45943 0 2056 14062401 2 58706 59134 1 47999 0 2141 14062501 4 59249 59663 1 50140 0 2071 14062601 2 59794 60217 1 52211 0 2116 14062701 4 60324 60720 1 54327 0 1981 14062801 2 60826 61229 1 56308 0 2016 15062901 4 68232 68602 1 58324 0 1851 12063001 2 67964 68324 1 60175 0 1801 12063101 4 67458 67844 1 61976 0 1931 12063201 2 66939 67281 1 63907 0 1711 12063301 4 66444 66805 1 65618 0 1806 12063401 2 65965 66293 1 67424 0 1641 12063501 4 65518 65860 1 69065 0 1711 12063601 2 65064 65369 1 70776 0 1526 12063701 4 64618 64944 1 72302 0 1631 12063801 2 64166 64453 1 73933 0 1436 12063901 4 63702 63994 1 75369 0 1461 12064001 2 63260 63522 1 76830 0 1311 12064101 4 62800 63065 1 78141 0 1326 15064201 2 69063 69290 1 79467 0 1136 12064301 4 61904 62141 1 80603 0 1186 12064401 2 61554 61764 1 81789 0 1051 12064501 4 61138 61333 1 82840 0 976 12064601 2 60773 60945 1 83816 0 861 12064701 4 60459 60613 1 84677 0 771 12064801 2 60122 60262 1 85448 0 701 12064901 4 59852 59965 1 86149 0 566 12065001 2 59585 59682 1 86715 0 486 14600101 3 53898 54052 1 87201 0 771 15600201 3 71565 71772 1 87972 0 1036 15600301 1 71142 71376 1 89008 0 1171 15600401 3 70764 71028 1 90179 0 1321 15600501 1 70334 70614 1 91500 0 1401 15600601 3 69940 70226 1 92901 0 1431 15600701 1 69449 69762 1 94332 0 1566 13600801 1 53644 53958 1 95898 0 1571 13600901 2 61566 61977 1 97469 0 2056 ------------------------ Data acquired and compiled by: Geoterrex-Dighem 2060 Walkley Road Ottawa, Ontario, K1G 3P5 Phone: (613) 731-9571 Fax: (613) 731-0453 E-mail: postmaster@geoterrex.ca