The followong listing describes the format of the DVL data file.

V# SID URSIc   LAT  LONG YYYY/MM/DD Day HH:MM:SS        Vx    Vx.err        Vy    Vy.err        Az    Az.err       Vh     Vh.err        Vz    Vz.err Coord
V1 809 CXM9B  -9.5 305.2 2002/10/08 281 00:08:08     51.15     16.78     99.50      3.19     62.67      5.44    112.10     10.55    -23.00      1.24 Com
V1 809 CXM9B  -9.5 305.2 2002/10/08 281 00:13:08     38.55     26.05    100.34      2.38     69.28      9.98    108.68     14.85    -21.45      2.17 Com
V1 809 CXM9B  -9.5 305.2 2002/10/08 281 00:18:08     54.43     19.23    120.37      1.90     65.74      6.77    132.39      9.99    -19.28      1.59 Com
V1 809 CXM9B  -9.5 305.2 2002/10/08 281 00:23:08     50.17     22.98    130.87      1.53     69.00      6.69    140.48     13.18    -22.36      1.75 Com
V1 809 CXM9B  -9.5 305.2 2002/10/08 281 00:28:08     41.68      9.93    126.08      6.32     71.60      5.01    131.55      3.08    -23.74      0.52 Com
V1 809 CXM9B  -9.5 305.2 2002/10/08 281 00:33:08     60.89      8.32    129.93      3.07     64.87      3.11    143.25      3.70    -25.93      0.60 Com

Coordinate system convention:

COM means Compass
GEO means Geographic
CGm means Corrected Geromagnetic

For example, in the case of using the Compass coordinates:

Vx means velocity component in magnetic north direction,
Vy means velocity component in "magnetic east" direction
Vz means vertical velocitiy component
Az means plasma motion direction counted clockwise from the magnetic north

V#       specifies DVL format version number
SID      is the Station ID (essentially, latitude of the station)
URSIc    stands for URSI Code of the station
LAT      Station Geographic Latitude
LONG     Station Geographic Longitude
YYYY     Year
MM       Month
DD       Day of month
Day      Day of year

HH:MM:SS Time in UT