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MERGED-MERGED Format Description 
 
Columns Field Description
 
1 - 8 Ship Cruise and Identification
9 - 13 Time Zone
14 - 15 Year
16 - 17 Month
18 - 19 Day
20 blank
21 - 22 Hour
23 - 25 Minute (decimal minutes with implied decimal; mm.t)
26 - 33 Latitude (decimal degrees; sxx.xxxx)
south latitude is negative
34 - 42 Longitude (decimal degrees; sxxx.xxxx)
west longitude is negative
43 Navigation Pt. Id
44 Fix description 
45 - 47 Satellite Current Azimuth
48 - 51 Current Velocity (implied decimal; nn=mnn.n)
52 blank
53 - 57* Uncorrected Depth; fathoms
(implied decimal; nnnnn=nnnn.n)
53 - 57** Uncorrected Depth; meters
58 - 62 Corrected Depth (meters)
63 - 64 Matthews Zone
66 - 70 Total Magnetic Intensity - gammas
71 - 75 Residual Magnetic Intensity
76 - 80 Free Air Anomaly - milligals (implied decimal; nnnnn=nnn.nn)

 

Fix description
0 = unspecified
1 = Decca 
2 = visual 
3 = radar 
4 = celestial (star fix) 
5 = celestial (advanced sun) 
6 = Loran- A 
7 = Loran-C 
8 = Omega or VLP 
9 = Satellite

* As defined for navigation/bathymetry data received in 1982.
** As defined for navigation/bathymetry data received in 1987.

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