Survey Identifier: C1306
Format Acronym: MGD77
Data Center File Number: 01010081
Parameters Surveyed Code: 55333
File Creation Date (yyyymmdd): 19890706
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: USA
Platform Name: ROBERT D. CONRAD
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): G. CARPENTER
Project: CRUISE 13, LEG 6
Survey Departure Date (yyyymmdd): 19700306
Port of Departure: PAPEETE, TAHITI
Survey Arrival Date (yyyymmdd): 19700412
Port of Arrival: CALLAO, PERU
Navigation Instrumentation: SATELLITE
Geodetic Datum/Position: SATELLITE/ DEAD RECKONING
Bathymetry Instrumentation: (SEE ADD DOC / 18)
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: L-DGO MFG PROTON-PRECESSION
Additional Forms of Magnetics Data: ANALOG RECORDS
Seismic Instrumentation: L-DGO 25CU-IN-AIRGUN,EEL,DRUM RECORDER
Formats of Seismic Data: TWO, 2 CHANNEL SHEET RECORDS
Topmost Latitude of Survey: -12
Bottommost Latitude: -20
Leftmost Longitude: -150
Rightmost Longitude: -076
General Digitizing Rate of Bathymetry: 060
General Sampling Rate of Bathymetry: ONE SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: NONE
General Digitizing Rate of Magnetics: 39
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN TWO NAV PTS
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT'L 1930
Reference System Code: 2
Reference System: POTSDAM SYSTEM
Additional Documentation: 06 -3.5 AND 12 KHZ, WIDE BEAM (60 DEG), 1 SECOND SWEEP
Number of Data Records: 13199
Min/Max Data Record:
Date: 1970 03 06
Latitude: -19.03520
Longitude: -149.22830
Bathymetry, 2- Way Traveltime: 014750
Bathymetry, Corrected Depth: 1106.0
Magnetics Total Field, 1st Sensor: 271230
Magnetics Residual Field: -06310
Min/Max Data Record:
Date: 1970 04 12
Latitude: -12.23500
Longitude: -76.57020
Bathymetry, 2- Way Traveltime: 077950
Bathymetry, Corrected Depth: 5893.0
Magnetics Total Field, 1st Sensor: 376340
Magnetics Residual Field: +02880