U. S. Geological Survey Open-File Report 99-404 Belen Survey, New Mexico, flown in 1998 by Sander Geophysics FINAL MAGNETOMETER DATA - bmlines.asc The line data is in ASCII format with no header. The line number is the first item in each record. The line number is represented as XXXXYYZ where XXXX is the line number, YY is the extension number and Z is the line direction to the nearest half quadrant. The record length is 150 bytes. Data Description Format Units Replacement Value Line # and direction (nearest 1/2 quadrant) A8 NNNNNNDD Longitude F11.5 Degrees -99999999 Latitude F9.5 Degrees -99999999 Easting (NAD-27-USA UTM Zone 13N) I7 meters -999999 Northing (NAD-27-USA UTM Zone 13N) I8 meters -999999 Time (UTC) F10.2 -99999.99 Day (Year, Julian Day) A6 Time (HHMMSS) A7 Radar Altimeter F6.1 meters -9999 Barometric Altimeter F7.1 meters -99999 GPS Altimeter (Height above Mean Sea Level) F8.2 meters -999999 Diurnal (ground station value) F9.2 nT -9999999 Uncorrected total field magnetic intensity F9.2 nT -9999999 Diurnally corrected total field magnetic intensity F9.2 nT -9999999 Residual total magnetic intensity after removal of IGRF F9.2 nT -9999999 Residual total magnetic intensity after initial levelling F9.2 nT -9999999 Residual total magnetic intensity after decorrugation F9.2 nT -9999999 Final residual total magnetic intensity F9.2 nT -9999999 :---------------------------------------------------------------------------- Data acquired and compiled by: Sander Geophysics Ltd. 260 Hunt Club Road Ottawa, Ontario, K1V 1C1 Phone: (613) 521-9626 Fax: (613) 521-0215 E-mail: info@sgl.com