Survey Identifier: 72110807
Format Acronym: MGD77
Data Center File Number: 08010022
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19830215
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 KK72-11-08-07
Funding: IDOE/ONR
Survey Departure Date (yyyymmdd): 19730501
Port of Departure: EASTER ISL., CHILE
Survey Arrival Date (yyyymmdd): 19730528
Port of Arrival: PAPEETE, TAHITI
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: -17
Bottommost Latitude: -29
Leftmost Longitude: -150
Rightmost Longitude: -099
General Digitizing Rate of Bathymetry: 53
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: 87
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
Arrival Base Station Gravity: 0000000
Additional Documentation: 09 40 AND 300 CU IN AIRGUN, 4500J SPARKER, B, M, G, REFLX (HIGH, LOW, MIX), 09 REFRX, ASPER 43-67, XBT 140-273, RD, PCOD, FFC. 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: 13938
Min/Max Data Record:
Date: 1973 05 01
Latitude: -28.01507
Longitude: -149.59753
Bathymetry, 2- Way Traveltime: 000260
Bathymetry, Corrected Depth: 20.0
Magnetics Total Field, 1st Sensor: 313030
Magnetics Residual Field: -28040
Free-Air Anomaly: -0420
Min/Max Data Record:
Date: 1973 05 28
Latitude: -17.41110
Longitude: -99.20307
Bathymetry, 2- Way Traveltime: 068740
Bathymetry, Corrected Depth: 5182.0
Magnetics Total Field, 1st Sensor: 382600
Magnetics Residual Field: +05030
Free-Air Anomaly: +1500