Survey Identifier: YAQ69FEB


Format Acronym: MGD77
Data Center File Number: 07010019
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19721109
Source Institution: OREGON STATE UNIVERSITY
Country: U.S.A.
Platform Name: YAQUINA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): DR. D. HEINRICHS
Project: YAQUINA LONG OCEAN CRUISE 1969 LEG 4 TALARA-TALARA
Funding: O.N.R.
Survey Departure Date (yyyymmdd): 19690214
Port of Departure: TALARA, PERU
Survey Arrival Date (yyyymmdd): 19690329
Port of Arrival: TALARA, PERU
Navigation Instrumentation: LORAN A / LORAN C
Geodetic Datum/Position: STARFIXES
Bathymetry Instrumentation: 12 KHZ WIDE BEAM (60 DEG)
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: OSU PROTON PRECESSION
Additional Forms of Magnetics Data: ANALOG RECORDS
Gravity Instrumentation: LACOSTE AND ROMBERG AIR-SEA S-9
Additional Forms of Gravity Data: ANALOG RECORDS
Seismic Instrumentation: 20 CU. IN. AIRGUN
Formats of Seismic Data: SINGLE CHANNEL ANALOG, MICROFILM
Topmost Latitude of Survey: +10
Bottommost Latitude: -05
Leftmost Longitude: -093
Rightmost Longitude: -077
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 2 SEC. SWEEP
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: NONE
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 03
Magnetic Sensor Tow Distance: 215
Sensor Depth: 30
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN NAVIGATION POINTS
General Digitizing Rate of Gravity: 050
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT. 1930
Reference System: SEE ADD DOC / 18
Corrections Applied: NONE
Departure Base Station Gravity: 9781336
Departure Base Station Description: WAC127 (SEE ADD DOC / 19)
Additional Documentation: 14 U.S. COMMERCE PIER G=980118.8, 15 WAG127 WOOLLARD AND ROSE 1963 PG 115
Number of Data Records: 13982

Min/Max Data Record:
Date: 1969 02 14
Latitude: -4.58800
Longitude: -92.06000
Bathymetry, 2- Way Traveltime: 000100
Bathymetry, Corrected Depth: 7.0
Magnetics Total Field, 1st Sensor: 306750
Magnetics Residual Field: -19440
Free-Air Anomaly: -1165

Min/Max Data Record:
Date: 1969 03 29
Latitude: +9.65800
Longitude: -77.70000
Bathymetry, 2- Way Traveltime: 065825
Bathymetry, Corrected Depth: 4954.0
Magnetics Total Field, 1st Sensor: 381850
Magnetics Residual Field: +08030
Free-Air Anomaly: +1206