Survey Identifier: WI343907
Format Acronym: MGD77
Data Center File Number: 09780031
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19801029
Source Institution: U.S NAVAL OCEANOGRAPHIC OFFICE
Country: U.S.A.
Platform Name: USNS WILKES
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): NAVOCEANO CODE 7220
Project: I.O. TRACK 23 (MODIFIED) , TRACK 24
Funding: NAVOCEANO
Survey Departure Date (yyyymmdd): 19790322
Port of Departure: COLOMBO SRI LANKA
Survey Arrival Date (yyyymmdd): 19790427
Port of Arrival: COLOMBO, SRI LANKA
Navigation Instrumentation: MX 706 SATNAV
Geodetic Datum/Position: PRIM - SATELLITE
Bathymetry Instrumentation: HARRIS 853-D 2-2/3 BEAM 12KHZ / SEC SW
Additional Forms of Bathymetric Data: ANALOG
Magnetics Instrumentation: PROTON PRECESSION MAG - GEOMETRICS
Additional Forms of Magnetics Data: ANALOG
Seismic Instrumentation: TELEDYNE 90KJ SPARKERS 31-160HZ 1 CHAN
Formats of Seismic Data: ANALOG, SEE ADD. DOC.
Topmost Latitude of Survey: +06
Bottommost Latitude: -04
Leftmost Longitude: +080
Rightmost Longitude: +089
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, IN PORT 790329-790403 VICTORIA, SEYCHELLES
Number of Data Records: 6480
Min/Max Data Record:
Date: 1979 04 22
Latitude: -3.92333
Longitude: +80.09667
Bathymetry, 2- Way Traveltime: 028640
Bathymetry, Corrected Depth: 2144.0
Magnetics Total Field, 1st Sensor: 398205
Magnetics Residual Field: -08950
Min/Max Data Record:
Date: 1979 04 27
Latitude: +5.76500
Longitude: +88.95500
Bathymetry, 2- Way Traveltime: 064907
Bathymetry, Corrected Depth: 4891.0
Magnetics Total Field, 1st Sensor: 426082
Magnetics Residual Field: -00160