Survey Identifier: 74010902
Format Acronym: MGD77
Data Center File Number: 08010026
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19830211
Source Institution: HAWAII INSTITUTE OF GEOPHYSICS
Country: U.S.A.
Platform Name: R/V KANA KEOKI
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): D. HUSSONG
Project: NAZCA PLATE PROJECT KK74-01-09-02
Funding: IDOE
Survey Departure Date (yyyymmdd): 19740216
Port of Departure: CALLAO, PERU
Survey Arrival Date (yyyymmdd): 19740312
Port of Arrival: CALLAO, PERU
Navigation Instrumentation: SATELLITE
Geodetic Datum/Position: PRIM-SATELLITE
Bathymetry Instrumentation: 3.5 KHZ 30 DEG BEAM
Additional Forms of Bathymetric Data: ANALOG, MICROFILM
Magnetics Instrumentation: VARIAN PROTON PRECESSION MAGNETOMETER
Additional Forms of Magnetics Data: ANALOG, MICROFILM
Gravity Instrumentation: LACOSTE ROMBERG S-33
Additional Forms of Gravity Data: ANALOG, MICROFILM
Seismic Instrumentation: (SEE ADD.DOC. 18)
Formats of Seismic Data: ANALOG, MICROFILM
Topmost Latitude of Survey: -12
Bottommost Latitude: -22
Leftmost Longitude: -081
Rightmost Longitude: -071
General Digitizing Rate of Bathymetry: 61
General Sampling Rate of Bathymetry: 11/SECOND
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: NONE.(PICKED PEAKS/TROUGHS OR 15-MIN INTERVLS IF SMOOTH)
General Digitizing Rate of Magnetics: 115
Horizontal Sensor Separation: 000
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: FOR EACH DATA VALUE
General Digitizing Rate of Gravity: 050
General Sampling Rate of Gravity: 60
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNATIONAL1930
Reference System Code: 2
Reference System: POTSDAM
Corrections Applied: NONE APPLIED
Additional Documentation: 09 AIRGUN, SPARKER, B, M, G, REFLX (HIGH, LOW, MIX), ASPER 12-21, 09 HEAT FLOW, PCOD. 15 GRAVITY BASE STATIONS IN GEORGE P. WOOLLARD AND JOHN C. ROSE, 15 INTERNATIONAL GRAVITY MEASUREMENTS, MADISON, UNIV OF WISCONSIN, 1963
Number of Data Records: 10940
Min/Max Data Record:
Date: 1974 02 16
Latitude: -21.90640
Longitude: -80.38913
Bathymetry, 2- Way Traveltime: 000200
Bathymetry, Corrected Depth: 15.0
Magnetics Total Field, 1st Sensor: 237510
Magnetics Residual Field: -21100
Free-Air Anomaly: -2270
Min/Max Data Record:
Date: 1974 03 12
Latitude: -12.05000
Longitude: -71.05508
Bathymetry, 2- Way Traveltime: 094320
Bathymetry, Corrected Depth: 7170.0
Magnetics Total Field, 1st Sensor: 277400
Magnetics Residual Field: +03780
Free-Air Anomaly: +0480