Survey Identifier: YAQ69APR


Format Acronym: MGD77
Data Center File Number: 07010020
Parameters Surveyed Code: 55511
File Creation Date (yyyymmdd): 19730329
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
Funding: ONR
Survey Departure Date (yyyymmdd): 19690402
Port of Departure: PUNTARENAS COSTA RICA
Survey Arrival Date (yyyymmdd): 19690419
Port of Arrival: SAN DIEGO, CALIFORNIA
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
Topmost Latitude of Survey: +33
Bottommost Latitude: +09
Leftmost Longitude: -118
Rightmost Longitude: -084
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: ADD DOC /18
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: 152
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 / 19
Corrections Applied: NONE
Departure Base Station Gravity: 9782170
Departure Base Station Description: SEE ADD DOC / 20
Additional Documentation: 12 SAMPLING RATE 1 AND 2.5 SEC. SWEEP, 14 U.S. COMMERCE PIER G=980118.8, 15 WA4041 WOOLARD AND ROSE 1963 PG 79
Number of Data Records: 5749

Min/Max Data Record:
Date: 1969 04 02
Latitude: +9.44500
Longitude: -117.48300
Bathymetry, 2- Way Traveltime: 000625
Bathymetry, Corrected Depth: 47.0
Magnetics Total Field, 1st Sensor: 380100
Magnetics Residual Field: -07660
Free-Air Anomaly: -1412

Min/Max Data Record:
Date: 1969 04 19
Latitude: +32.57000
Longitude: -84.82000
Bathymetry, 2- Way Traveltime: 084350
Bathymetry, Corrected Depth: 6393.0
Magnetics Total Field, 1st Sensor: 494500
Magnetics Residual Field: +08340
Free-Air Anomaly: +1547