Survey Identifier: 77110901
Format Acronym: MGD77
Data Center File Number: 08010041
Parameters Surveyed Code: 55551
File Creation Date (yyyymmdd): 19800512
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): ROBERT R. HARVEY
Project: KK771109 LEG 01 TAHITI SHUTTLE TEST
Funding: N.S.F.
Survey Departure Date (yyyymmdd): 19771109
Port of Departure: HONOLULU, HAWAII, U.S.A.
Survey Arrival Date (yyyymmdd): 19771127
Port of Arrival: PAPEETE, TAHITI
Navigation Instrumentation: SATELLITE, SEXTANT
Geodetic Datum/Position: SATELLITE
Bathymetry Instrumentation: 12KHZ+3.5KHZ, 30DEG BEAM, 1SEC REP RATE
Additional Forms of Bathymetric Data: ANALOG RECORDS, MICROFILM
Magnetics Instrumentation: VARIAN PROTON PRECESSION MAGNETOMETER
Additional Forms of Magnetics Data: ANALOG RECORDS, MICROFILM, DATA LOGGER
Gravity Instrumentation: LACOSTE-ROMBERG STABLE TABLE S-33
Additional Forms of Gravity Data: ANALOG RECORDS, MICROFILM, DATA LOGGER
Seismic Instrumentation: (SEE BATHYMETRY INSTRUMENTATION)
Formats of Seismic Data: (SEE BATHYMETRY DATA)
Topmost Latitude of Survey: +22
Bottommost Latitude: -18
Leftmost Longitude: -158
Rightmost Longitude: -148
General Digitizing Rate of Bathymetry: 49
General Sampling Rate of Bathymetry: 1 PER SECOND
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: NO INTERPOLATION
General Digitizing Rate of Magnetics: 010
Magnetic Sensor Tow Distance: 0180
Horizontal Sensor Separation: 000
Reference Field Code: 04
Reference Field: IGRF 1975
Method of Applying Residual Field: CALCULATED FOR EACH POINT
General Digitizing Rate of Gravity: 050
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNATIONAL1930
Reference System Code: 2
Reference System: POTSDAM
Corrections Applied: NONE
Departure Base Station Gravity: 0000000
Arrival Base Station Gravity: 0000000
Additional Documentation: 15 GRAVITY BASE STATIONS IN GEORGE P. WOOLLARD AND JOHN C. ROSE, 15 INTERNATIONAL GRAVITY MEASUREMENTS, MADISON, UNIV OF WISC, S.E.G., 1963, 15, 06 12KHZ USED UNTIL 0030Z 11NOV/3.5KHZ USED FROM THEN TILL END OF LEG, 07 MAGNETICS COLLECTED ONLY UNTIL 11 NOV, 12 BATHYMETRY PICKED BY HAND AT 5 MIN INTERVALS+PEAKS+TROUGHS UNTIL 17NOV77, 12 REMAINDER PICKED BY DIGITIZER ON LAND
Number of Data Records: 12736
Min/Max Data Record:
Date: 1977 11 09
Latitude: -17.53900
Longitude: -157.89265
Bathymetry, 2- Way Traveltime: 000660
Bathymetry, Corrected Depth: 49.0
Magnetics Total Field, 1st Sensor: 361320
Magnetics Residual Field: -02130
Free-Air Anomaly: -1446
Min/Max Data Record:
Date: 1977 11 27
Latitude: +21.31926
Longitude: -148.95838
Bathymetry, 2- Way Traveltime: 078640
Bathymetry, Corrected Depth: 5947.0
Magnetics Total Field, 1st Sensor: 362560
Magnetics Residual Field: -00870
Free-Air Anomaly: +2374