Survey Identifier: WI913026


Format Acronym: MGD77
Data Center File Number: 09780014
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19791123
Source Institution: US NAVAL OCEANOGRAPHIC OFFICE
Country: USA
Platform Name: USNS WILKES
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): NAVOCEANO CODE 7220
Project: SHAKEDOWN SURVEY SNOA AREA NA-6
Survey Departure Date (yyyymmdd): 19730415
Port of Departure: CHARLESTON, SC
Survey Arrival Date (yyyymmdd): 19730416
Port of Arrival: NORFOLK, VA
Navigation Instrumentation: MX 706 SATNAV, SPN 38 L/C,
Geodetic Datum/Position: PRIM - SATELLITE
Bathymetry Instrumentation: HARRIS 853-D 2-2/3 BEAM, 12KHZ, 1-SEC SW
Additional Forms of Bathymetric Data: ANALOG
Magnetics Instrumentation: PROTON PRECESSION MAG - GEOMETRICS
Additional Forms of Magnetics Data: ANALOG
Seismic Instrumentation: TELEDYNE 90 KJ SPARKER 31-160 HZ 1-CHAN
Formats of Seismic Data: ANALOG
Topmost Latitude of Survey: +30
Bottommost Latitude: +28
Leftmost Longitude: -077
Rightmost Longitude: -075
General Digitizing Rate of Bathymetry: 010
General Sampling Rate of Bathymetry: EVERY 10 SEC
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: DATA AVERAGED TO OBTAIN 1-MINUTE AVERAGE VALUES
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 10
Magnetic Sensor Tow Distance: 245+
Reference Field Code: 03
Reference Field: IGRF-65
Additional Documentation: 3.5 KHZ ANALOG PROFILES COLLECTED - EDO 240 SYSTEM, 10-SEC AND 4-SEC DELAYED SWEEP SEISMIC ANALOG RECORDS
Number of Data Records: 1343

Min/Max Data Record:
Date: 1973 04 15
Latitude: +28.35500
Longitude: -76.97000
Bathymetry, 2- Way Traveltime: 014013
Bathymetry, Corrected Depth: 1061.0
Magnetics Total Field, 1st Sensor: 502240
Magnetics Residual Field: -04200

Min/Max Data Record:
Date: 1973 04 16
Latitude: +29.36667
Longitude: -75.65833
Bathymetry, 2- Way Traveltime: 066387
Bathymetry, Corrected Depth: 5023.0
Magnetics Total Field, 1st Sensor: 511330
Magnetics Residual Field: -00880