Survey Identifier: AFTM01VR
Format Acronym: MGD77
Data Center File Number: 15190002
Parameters Surveyed Code: 55111
File Creation Date (yyyymmdd): 19820526
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V VELERO(USC)
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): BATIZA R.
Project: AFTERMATH LEG 1
Survey Departure Date (yyyymmdd): 19810210
Port of Departure: SAN PEDRO,CALIFORNIA
Survey Arrival Date (yyyymmdd): 19810226
Port of Arrival: SAN PEDRO,CALIFORNIA
Navigation Instrumentation: SATNAV,MANUAL ENTRY GYRO AND SPD CHANGES
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 12KHZ/GIFFT RECORDER/WIDE(60DEG)BEAM
Additional Forms of Bathymetric Data: PUNCH CARDS, 35MM MICROFILM
Magnetics Instrumentation: VARIAN MFD PROTON PRECESSION MOD 4970
Additional Forms of Magnetics Data: PUNCHED CARDS
Topmost Latitude of Survey: +31
Bottommost Latitude: +15
Leftmost Longitude: -119
Rightmost Longitude: -110
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1SECONDSWEEP
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: 5 MINUTE INTERVAL
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 06
Reference Field Code: 04
Reference Field: IGRF 1975
Method of Applying Residual Field: LIN. INTERP.POINTS WITHIN ONE DEGREE SQUARE
Number of Data Records: 4505
Min/Max Data Record:
Date: 1981 02 10
Latitude: +15.97100
Longitude: -118.25831
Bathymetry, 2- Way Traveltime: 005750
Bathymetry, Corrected Depth: 431.0
Magnetics Total Field, 1st Sensor: 393180
Magnetics Residual Field: -09300
Min/Max Data Record:
Date: 1981 02 26
Latitude: +30.68450
Longitude: -110.75300
Bathymetry, 2- Way Traveltime: 062000
Bathymetry, Corrected Depth: 4654.0
Magnetics Total Field, 1st Sensor: 475400
Magnetics Residual Field: +07660