Survey Identifier: 85005811
Format Acronym: MGD77
Data Center File Number: 67010154
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19880114
Source Institution: IFREMER
Country: FRANCE
Platform Name: JEAN CHARCOT
Platform Type Code: 1
Platform Type: SHIP
Project: SEAPSO L3
Funding: IFREMER
Survey Departure Date (yyyymmdd): 19851202
Survey Arrival Date (yyyymmdd): 19851223
Navigation Instrumentation: MX1107R,GPS TI4100
Geodetic Datum/Position: SATELITE ESTIME
Bathymetry Instrumentation: VERTICAL SEABEAM
Magnetics Instrumentation: GEOMETRICS G801
Gravity Instrumentation: BODENSEEWERK KSS30
Topmost Latitude of Survey: -16
Bottommost Latitude: -22
Leftmost Longitude: +168
Rightmost Longitude: +179
General Digitizing Rate of Bathymetry: 012
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 012
Sensor Depth: 00100
Method of Applying Residual Field: INTERPOLATION BETWEEN NAVIGATION DATA
General Digitizing Rate of Gravity: 010
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNATIONAL 30
Additional Documentation: BATHYMETRY DATA ALSO PROCESSED BY ORSTOM NEW CALEDONIA (EDO 12KHZ, RAYTHEON3.5, K) AVAILABLE THROUGH NGDC.
Number of Data Records: 31130
Min/Max Data Record:
Date: 1985 12 02
Latitude: -21.43522
Longitude: +168.22394
Bathymetry, Corrected Depth: 179.0
Magnetics Total Field, 1st Sensor: 426740
Magnetics Residual Field: -08802
Observed Gravity: 9783600
Free-Air Anomaly: -0974
Min/Max Data Record:
Date: 1985 12 23
Latitude: -16.19282
Longitude: +178.42199
Bathymetry, Corrected Depth: 4261.0
Magnetics Total Field, 1st Sensor: 464530
Magnetics Residual Field: +15705
Observed Gravity: 9788555
Free-Air Anomaly: +1546