USGS Open-File Report 2007-1248

Data are compressed (zipped).
Line data are archived in ASCII xyz format, described as follows:

Columns	 Format	Description		Units

1-4	 I4	Line Number	
5-10	 I6	Flight Direction Code	
		 0 = s to n, 2 = w to e
		 4 = n to s, 6 = e to w
11-22	 F12.5	Latitude (NAD 27)	Dec. Deg.
23-34	 F12.5	Longitude (NAD 27)	Dec. Deg.
35-45	 F11.2	UTM X (NAD 27)		meters
46-56	 F11.2	UTM Y (NAD 27)		meters
57-67	 F11.2	UTM X (WGS 84)		meters
68-78	 F11.2	UTM Y (WGS 84)		meters
79-87	 I9	Fiducial		¼ second
88-97	 A10	Year/Julian Date	YYYY/DDD
98-109	 A12	Time			hh:mm:ss.ss
110-114	 F5.0	Radar Altimeter		meters
115-120	 F6.0	Barometric Altimeter	meters
121-126	 F6.0	GPS Elevation		meters
127-135	 F9.2	Diurnal			nT
136-144	 F9.2	Raw Magnetics		nT
145-153	 F9.2	Diurnally Corrected 
		   Magnetics		nT
154-162	 F9.2	Diurnally + IGRF 
		   Corrected Magnetics	nT
163-171	 F9.2	DC Leveled Magnetics	nT
172-180	 F9.2	Hand-Leveled Magnetics	nT
181-189	 F9.2	Final Leveled Magnetics	nT

      
SAMPLE DATA:
1010    6.  -105.62880    36.48050   443622.5  4037432.3   443671.9  4037227.4  109228. 2006/286. 07:35:07.00 122. 2281. 2314. 51065.46 51013.30 51016.85  -336.02  -333.32  -333.32
1010    6.  -105.62908    36.48050   443597.5  4037432.6   443646.9  4037227.7  109229. 2006/286. 07:35:07.25 122. 2281. 2314. 51065.46 51012.40 51015.95  -336.88  -334.18  -334.18
1010    6.  -105.62936    36.48051   443572.4  4037432.9   443621.9  4037228.1  109230. 2006/286. 07:35:07.50 122. 2281. 2314. 51065.46 51011.37 51014.92  -337.87  -335.17  -335.17