Western Coastal and Marine Geology

File Formats of MarFac Software

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YoNav Software Documentation:
   Features | Quick Start | Installing | Connecting External Devices | Start YoNav Server | Configure Devices
   Troubleshooting | Create a New Survey | YoNav Data Formats


Formats:


.SHP files smoothed ASCII navigation

This is the standard navigation format used by all versions of YoNav. Note that some versions may add fields beyond these shown below but the core values will always be in these locations.

Example: 19983160143204 37.50733 -122.21033 0.0 0.0 0.0 286.9

day/time lat lon dep Spd hdg course
19983160143204 37.50733 -122.21033 0.0 0.0 0.0 286.9


.FSH files smoothed fish navigation

This file contains the navigation information for a towed body that was navigated by using the ship position and some external range/bearing device that provided offset information to the towed body.

day/time lat lon dep Spd hdg course
0900001353 32.65681 117.29026 54.1 4.4 0.0 336.1


.SHT files Seismic shot event file

This file contains the position of the vessel at the time that a seismic shot event was generated.

Example: 19990840448131 37.50775 -122.21091 0.0 0.7 0.0 343.0 ET: 3.06 311

day/time lat lon dep Spd hdg course Elapsed Time Shot Number
19990840448131 37.50775 -122.21091 0.0 0.7 0.0 343.0 3.06 s 311


.XXX files raw sensor data

Simrad HPR:
00:00:15.921 33 1 M OK 50.0 171.0 182.5 67.4 7.8

NMEA Fatho:
00:00:00.953 $SDDBT,0237.0,f,,,,

Trimble 4000 GPS:
00:00:00.375 [00 SAT 090 30-MAR-96 00:00:02d32:39.3915N 117:17.3979W -0031 02.4 807541 +000.48 004.35 000.2 -6.4627E-07 0013 4 4,7,9,24,20,5]


.TXT Survey Lines Exported As Text

Line 44, 32.6835000000,-117.3071166667, 32.6523833333,-117.2899500000
Line 45, 32.68350000 00,-117.3060000000, 32.6527000000,-117.2890000000


.TXT LogBook Exported As Text

03/26/96 086 22:30:54.484 32° 39.393' N 117° 16.466' W ---> Klien going back in water for test line 1
03/26/96 086 22:33:00.531 32° 39.467' N 117° 16.538' W ---> Start of Line nw1-bac.dat
03/26/96 086 22:37:56.062 32° 39.667' N 117° 16.638' W ---> Fish height about 14 m, low end for survey
03/26/96 086 22:44:57.046 32° 39.938' N 117° 16.775' W ---> Fish Height 20
03/26/96 086 22:49:10.359 32° 40.100' N 117° 16.869' W ---> Bringing fish up to 30m altitude
03/26/96 086 22:52:40.375 32° 40.233' N 117° 16.950' W ---> Brining fish up to 40m altitude
03/26/96 086 22:59:24.687 32° 40.507' N 117° 17.099' W ---> Turning off test line to reciprocal course
03/26/96 086 22:59:44.890 32° 40.522' N 117° 17.105' W ---> End line nw1-bac.dat
03/26/96 086 23:04:38.484 32° 40.401' N 117° 17.042' W ---> Start of Line se1-bac.dat


Information listed by topic  Information listed by location Information listed by project title Home Search

U.S. Department of the Interior    U.S. Geological Survey    Western Coastal & Marine Geology
URL: http://walrus.wr.usgs.gov/marfac/formats.html
for more information, contact John Gann
maintained by Laura Zink Torresan
Last updated 7 November 2006 (lzt)