Survey Identifier: 77031701


Format Acronym: MGD77
Data Center File Number: 08010037
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19830203
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): LARSON (LDGO)
Project: IPOD NAURU BASIN SITE SURVEY KK77-03-17-01
Funding: IPOD/ONR
Survey Departure Date (yyyymmdd): 19770317
Port of Departure: HONOLULU, HAWAII
Survey Arrival Date (yyyymmdd): 19770405
Port of Arrival: MAJURO, AMERICAN TRUST TER.
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: GEOMETRICS G 801-3
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: -01
Leftmost Longitude: +171
Rightmost Longitude: -157
General Digitizing Rate of Bathymetry: 33
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: 04
Reference Field: IGRF-75
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: 9783184
Departure Base Station Description: MAJURO, AMER. TRUST TERRITORIES
Arrival Base Station Gravity: 9783184
Arrival Base Station Description: MAJURO, AMER TRUST TERRITORIES
Additional Documentation: 09 120 CU IN AIRGUN, 4500J SPKR, OBS, B, M, G, E, A, REFLX (HIGH 100-300, 09 MIX 40-100/100-250), REFRX/DIGITAL, OBS 1-4, ASPER 1-11/DIGITAL. 15 GRAVITY BASE STATIONS IN GEORGE P. WOOLLARD AND JOHN C. ROSE, 15 INTERNATIONAL GRAVITY MEASUREMENTS, MADISON, UNIV OF WISCONSIN, 1963, 15 GRAVITY STILL METER 6586.0
Number of Data Records: 23996

Min/Max Data Record:
Date: 1977 03 17
Latitude: -0.05408
Longitude: -179.99916
Bathymetry, 2- Way Traveltime: 000730
Bathymetry, Corrected Depth: 55.0
Magnetics Total Field, 1st Sensor: 325000
Magnetics Residual Field: -10690
Free-Air Anomaly: -0948

Min/Max Data Record:
Date: 1977 04 05
Latitude: +21.36515
Longitude: +179.99909
Bathymetry, 2- Way Traveltime: 080570
Bathymetry, Corrected Depth: 6101.0
Magnetics Total Field, 1st Sensor: 365610
Magnetics Residual Field: +05380
Free-Air Anomaly: +2300