Survey Identifier: 79102901
Format Acronym: MGD77
Data Center File Number: 08010057
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19
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): BARBARA KEATING
Project: LINE ISLANDS LEG III, KK79102901
Funding: ONR
Survey Departure Date (yyyymmdd): 19791029
Port of Departure: HONOLULU, HAWAII U.S.A.
Survey Arrival Date (yyyymmdd): 19791119
Port of Arrival: KAWAIHAE, HAWAII U.S.A.
Navigation Instrumentation: SATELLITE
Geodetic Datum/Position: SATELLITE
Bathymetry Instrumentation: 3.5 KHZ,30-DEGREE BEAM,1-SEC.SWEEP
Additional Forms of Bathymetric Data: ANALOG,MICROFILM
Magnetics Instrumentation: PROTON PRECESSION MAG-GEOMETRICS
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: +22
Bottommost Latitude: +03
Leftmost Longitude: -170
Rightmost Longitude: -155
General Digitizing Rate of Bathymetry: 36
General Sampling Rate of Bathymetry: 1/SECOND
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: NO INTERPOLATION
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 06
Magnetic Sensor Tow Distance: 0213
Sensor Depth: 00000
Horizontal Sensor Separation: 000
Reference Field Code: 04
Reference Field: IGRF 1975
Method of Applying Residual Field: CALCULATED FOR EACH DATA VALUE
General Digitizing Rate of Gravity: 050
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAGSYSTEM1967
Reference System Code: 3
Reference System: IGSN71
Corrections Applied: NONE APPLIED
Departure Base Station Gravity: 9789243
Departure Base Station Description: HONOLULU, HAWAII U.S.A.
Arrival Base Station Gravity: 0000000
Additional Documentation: 09 40-80 CU.IN.AIRGUN,75-150HZ.,40-120HZ.,5-SEC.REP.RATE, 09 XBT:1-37, ASPERS 4-37. 15 GRAVITY BASE STATIONS IN GEORGE P. WOOLLARD AND JOHN C. ROSE, 15 INTERNATIONAL GRAVITY MEASUREMENTS, MADISON, UNIV OF WISCONSIN, 1963, 15 ARRIVAL STILL METER READING 7069.0
Number of Data Records: 31993
Min/Max Data Record:
Date: 1979 10 29
Latitude: +3.81350
Longitude: -169.42666
Bathymetry, 2- Way Traveltime: 002010
Bathymetry, Corrected Depth: 151.0
Magnetics Total Field, 1st Sensor: 325690
Magnetics Residual Field: -07410
Free-Air Anomaly: -1013
Min/Max Data Record:
Date: 1979 11 19
Latitude: +21.32123
Longitude: -155.82858
Bathymetry, 2- Way Traveltime: 077420
Bathymetry, Corrected Depth: 5852.0
Magnetics Total Field, 1st Sensor: 365950
Magnetics Residual Field: +08510
Free-Air Anomaly: +2522