Survey Identifier: 71042611
Format Acronym: MGD77
Data Center File Number: 08010010
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19830308
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): SUTTON
Project: IGUANA SEISMIC REF. PROJ. KK71-04-26-11
Funding: NSF
Survey Departure Date (yyyymmdd): 19720420
Port of Departure: GUAYAQUIL, EQUADOR
Survey Arrival Date (yyyymmdd): 19720511
Port of Arrival: ACAPULCO, MEXICO
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: -04
Leftmost Longitude: -101
Rightmost Longitude: -079
General Digitizing Rate of Bathymetry: 77
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 SMOOOTH
General Digitizing Rate of Magnetics: 91
General Sampling Rate of Magnetics: 00
Magnetic Sensor Tow Distance: 0000
Sensor Depth: 00000
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: 217
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 APPLIED
Departure Base Station Gravity: 0000000
Arrival Base Station Gravity: 0000000
Additional Documentation: 09 B, M, G, REFLX (HIGH, LOW, MIX), REFRX, ASPER 149-167, 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: 8525
Min/Max Data Record:
Date: 1972 04 20
Latitude: -3.09204
Longitude: -100.02898
Bathymetry, 2- Way Traveltime: 000040
Bathymetry, Corrected Depth: 3.0
Magnetics Total Field, 1st Sensor: 310100
Magnetics Residual Field: -01360
Free-Air Anomaly: -1110
Min/Max Data Record:
Date: 1972 05 11
Latitude: +16.84807
Longitude: -79.90521
Bathymetry, 2- Way Traveltime: 070410
Bathymetry, Corrected Depth: 5308.0
Magnetics Total Field, 1st Sensor: 402190
Magnetics Residual Field: +08030
Free-Air Anomaly: +0760