Survey Identifier: CMAPPI3S
Format Acronym: MGD77
Data Center File Number: 03010005
Parameters Surveyed Code: 55511
File Creation Date (yyyymmdd): 19800207
Source Institution: NOAA/NOS
Country: UNITED STATES
Platform Name: PIONEER
Platform Type Code: 1
Platform Type: SHIP
Project: OPR-421 PACIFIC SURVEY SEAMAP, CMAPPI3S
Survey Departure Date (yyyymmdd): 19610429
Port of Departure: KODIAK ISL.,USA
Survey Arrival Date (yyyymmdd): 19630828
Port of Arrival: ALEUTAIN ISL.,USA
Navigation Instrumentation: LORAN C/ LORAN A/ CELESTIAL/ SATELLITE
Geodetic Datum/Position: LORAN C
Bathymetry Instrumentation: PDR
Magnetics Instrumentation: VARIAAN (V-4931)
Additional Forms of Magnetics Data: STRIP CHARTS/ PUNCHED TAPE
Gravity Instrumentation: LACOSTE-ROMBERG (S-11)
Additional Forms of Gravity Data: STRIP CHARTS
Topmost Latitude of Survey: +54
Bottommost Latitude: +48
Leftmost Longitude: -166
Rightmost Longitude: -155
General Digitizing Rate of Bathymetry: 753
Interpolation Scheme: 5-MIN INTERVALS, PEAKS, TOUGHS, AND STEEP SLOPES
Magnetic Sensor Tow Distance: 0140
Reference Field Code: 03
Reference Field: IGRF-65
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT'L 1930
Corrections Applied: DRIFT: <+2.4 MGALS/MO.
Additional Documentation: WARNING: MGD77 DATA RECORDS FOR THIS CRUISE MAY CONTAIN NEGATIVE GRAVITY, ANOMALY VALUES THAT SHOULD BE POSITIVE.
Number of Data Records: 14477
Min/Max Data Record:
Date: 1961 04 29
Latitude: +48.00000
Longitude: -165.99800
Bathymetry, 2- Way Traveltime: 000997
Bathymetry, Corrected Depth: 75.0
Magnetics Total Field, 1st Sensor: 469310
Magnetics Residual Field: -09120
Free-Air Anomaly: -1680
Min/Max Data Record:
Date: 1963 08 28
Latitude: +54.00000
Longitude: -155.03300
Bathymetry, 2- Way Traveltime: 090237
Bathymetry, Corrected Depth: 6835.0
Magnetics Total Field, 1st Sensor: 524150
Magnetics Residual Field: +07360
Free-Air Anomaly: +0000