Survey Identifier: CMAPSU2A
Format Acronym: MGD77
Data Center File Number: 03020008
Parameters Surveyed Code: 55511
File Creation Date (yyyymmdd): 19800207
Source Institution: NOAA/NOS
Country: USA
Platform Name: SURVEYOR
Platform Type Code: 1
Platform Type: SHIP
Project: OPR 421 PACIFIC SEA MAP
Funding: NSF/IDOE
Survey Departure Date (yyyymmdd): 19640229
Port of Departure: HONOLULU,USA
Survey Arrival Date (yyyymmdd): 19701101
Port of Arrival: POINT RAYE,USA
Navigation Instrumentation: LORAN-C/LORAN-A/ CELESTIAL/SATELLITE
Bathymetry Instrumentation: 12 KHZ TRANSDUCER (PDC)
Additional Forms of Bathymetric Data: STRIP CHARTS/PUNCHED PAPER TAPE
Magnetics Instrumentation: VARIAN TOTAL-FIELD PRECESSION MAGNET.
Additional Forms of Magnetics Data: ANALOG STRIP CHART, PUNCHED TAPE
Gravity Instrumentation: LACOSTE-ROMBERG GIMBALED S.S. METER
Additional Forms of Gravity Data: STRIP CHARTS/MAGNETIC TAPE
Topmost Latitude of Survey: +36
Bottommost Latitude: +30
Leftmost Longitude: -165
Rightmost Longitude: -155
Interpolation Scheme: 5-MINUTE INT. AND AT PEAKS, TROUGHS AND STEEP SLOPES
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: CONTOURED AT AN INTERVAL OF 100 GAMMAS
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT'L 1930
Additional Documentation: NAVIGATION IS POOR, WARNING: MGD77 DATA RECORDS FOR THIS CRUISE MAY CONTAIN NEGATIVE GRAVITY, ANOMALY VALUES THAT SHOULD BE POSITIVE.
Number of Data Records: 8634
Min/Max Data Record:
Date: 1964 02 29
Latitude: +30.00000
Longitude: -164.98700
Bathymetry, 2- Way Traveltime: 031945
Bathymetry, Corrected Depth: 2378.0
Magnetics Total Field, 1st Sensor: 381620
Magnetics Residual Field: -06250
Free-Air Anomaly: -0250
Min/Max Data Record:
Date: 1970 11 01
Latitude: +36.00000
Longitude: -155.01300
Bathymetry, 2- Way Traveltime: 081452
Bathymetry, Corrected Depth: 6160.0
Magnetics Total Field, 1st Sensor: 423620
Magnetics Residual Field: +06220
Free-Air Anomaly: -0010