Survey Identifier: CMAPPI6W
Format Acronym: MGD77
Data Center File Number: 03010012
Parameters Surveyed Code: 55511
File Creation Date (yyyymmdd): 19800208
Source Institution: NOAA/NOS
Country: UNITED STATES
Platform Name: PIONEER
Platform Type Code: 1
Platform Type: SHIP
Project: OPR-421 PACIFIC SURVEY SEAMAP, CMAPPI6W
Survey Departure Date (yyyymmdd): 19610915
Survey Arrival Date (yyyymmdd): 19610917
Navigation Instrumentation: LORAN C/ LORAN A/ CELESTIAL/ SATELLITE
Geodetic Datum/Position: LORAN C
Bathymetry Instrumentation: PDR
Magnetics Instrumentation: VARIAN (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: +36
Bottommost Latitude: +30
Leftmost Longitude: -178
Rightmost Longitude: -177
General Digitizing Rate of Bathymetry: 77
Interpolation Scheme: 5-MIN INTERVALS, PEAKS, TROUGHS, AND STEEP SLOPES
General Digitizing Rate of Magnetics: 168
Magnetic Sensor Tow Distance: 0140
Reference Field Code: 03
Reference Field: IGRF-65
General Digitizing Rate of Gravity: 169
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: 354
Min/Max Data Record:
Date: 1961 09 15
Latitude: +30.00500
Longitude: -177.53300
Bathymetry, 2- Way Traveltime: 028665
Bathymetry, Corrected Depth: 2133.0
Magnetics Total Field, 1st Sensor: 373510
Magnetics Residual Field: -05150
Free-Air Anomaly: -0550
Min/Max Data Record:
Date: 1961 09 17
Latitude: +35.99900
Longitude: -177.13800
Bathymetry, 2- Way Traveltime: 074132
Bathymetry, Corrected Depth: 5590.0
Magnetics Total Field, 1st Sensor: 398750
Magnetics Residual Field: +04590
Free-Air Anomaly: +0000