Return to R/V FAY data home page Observed gravity value, ship's velocity components (velocity north and east), date, and GMT. The format may also include an observed total magnetic field value and/or corrected depth, in meters, for the same time if available.
COLS FIELD NAME FORMAT
---- --------------------------- ------
1 record type indicator = 1 I1
2-3 day I2
4-5 month I2
6-7 year I2
8-11 time of day (GMT as HHMM) I4
8-9 hour I2
10-11 minute I2
12 tenths of minute I1
13-18 velocity north (knots) F6.2
20-25 velocity east (knots) F6.2
27-33 observed gravity value (milligals) F7.1
35-39 observed magnetic value (gammas) I5
35 observed magnetic value part 1 I1
36-39 observed magnetic value part 2 I4
41-45 corrected depth (meters) I5
The time may include tenths of minutes for conversion of magnetics data to CALCM format.
The observed magnetic value was originally written in two parts due to the value exceeding the 16-bit integer data range of 32767. This is no longer a restriction of modern computer systems.
The end of reel record-type indicator 9 has been removed from the AQU1 data files.
1 2 3 4 4 123456789012345678901234567890123456789012345 --------------------------------------------- 1 9 9761925 -3.15 .25 80323.2 0 0 1 9 9761930 -9.87 3.83 80307.2 0 0 1 9 9761940 -2.09 11.43 80285.3 0 0 1 9 9761945 .19 11.49 80290.1 0 0 1 9 9761950 -.36 12.16 80287.2 0 0 1 9 9761955 -1.53 12.44 80287.1 0 0 1 9 9762000 -2.36 12.17 80286.9 0 0 1 9 9762005 -3.33 12.02 80287.9 0 0 1 9 9762010 -3.55 11.91 80289.9 0 0 1 9 9762015 -3.58 11.79 80291.4 0 0