Survey Identifier: 74010905
Format Acronym: MGD77
Data Center File Number: 08010029
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19830210
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): COULBOURN
Project: NAZCA PLATE PROJECT KK74-01-09-05
Funding: IDOE
Survey Departure Date (yyyymmdd): 19740526
Port of Departure: VALPARAISO, CHILE
Survey Arrival Date (yyyymmdd): 19740616
Port of Arrival: PANAMA
Navigation Instrumentation: SATELLITE
Geodetic Datum/Position: PPRIM-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: +09
Bottommost Latitude: -33
Leftmost Longitude: -084
Rightmost Longitude: -070
General Digitizing Rate of Bathymetry: 64
General Sampling Rate of Bathymetry: 1/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: 010
General Sampling Rate of Magnetics: 06
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
Departure Base Station Gravity: 0000000
Departure Base Station Description: HONOLULU, HAWAII PIER 18
Arrival Base Station Gravity: 0000000
Arrival Base Station Description: HONOLULU, HAWAII PIER 18
Additional Documentation: 09 AIRGUN, SPARKER, B, M, G, REFLX (HIGH, LOW, MIX, VLOW), ASPER 32-38, 09 XBT 105-146, FFE, FFTG, PCOD, RD. 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: 10511
Min/Max Data Record:
Date: 1974 05 26
Latitude: -32.91670
Longitude: -83.58080
Bathymetry, 2- Way Traveltime: 000280
Bathymetry, Corrected Depth: 21.0
Magnetics Total Field, 1st Sensor: 253900
Magnetics Residual Field: -08790
Free-Air Anomaly: -2570
Min/Max Data Record:
Date: 1974 06 16
Latitude: +8.85760
Longitude: -70.16478
Bathymetry, 2- Way Traveltime: 101010
Bathymetry, Corrected Depth: 7701.0
Magnetics Total Field, 1st Sensor: 371240
Magnetics Residual Field: +06740
Free-Air Anomaly: +0900