Survey Identifier: CMAPPI1A
Format Acronym: MGD77
Data Center File Number: 03010002
Parameters Surveyed Code: 55511
File Creation Date (yyyymmdd): 19800207
Source Institution: NOAA/NOS
Country: U.S.A.
Platform Name: PIONEER
Platform Type Code: 1
Platform Type: SHIP
Project: OPR-421 PACIFIC SURVEY SEAMAP, CMAPPI1A
Survey Departure Date (yyyymmdd): 19610817
Survey Arrival Date (yyyymmdd): 19650423
Navigation Instrumentation: LORAN-C/ LORAN-A/ CELESTIAL/ SATELLITE
Geodetic Datum/Position: LORAN-C
Bathymetry Instrumentation: PRECISION DEPTH RECORDER
Magnetics Instrumentation: VARIAN 9V-49310
Additional Forms of Magnetics Data: STRIP CHARTS/PUNCH TAPE
Gravity Instrumentation: LACOSTE-ROMBERG (S-11)
Additional Forms of Gravity Data: STRIP CHARTS
Topmost Latitude of Survey: +30
Bottommost Latitude: +24
Leftmost Longitude: -165
Rightmost Longitude: -156
General Digitizing Rate of Bathymetry: 936
Interpolation Scheme: 5-MINUTE INTERVALS AND PEAKS, STEEP SLOPES, TROUGHS
Magnetic Sensor Tow Distance: 140
Sensor Depth: 9999.
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/MONTH
Additional Documentation: WARNING: MGD77 DATA RECORDS FOR THIS CRUISE MAY CONTAIN NEGATIVE GRAVITY, ANOMALY VALUES THAT SHOULD BE POSITIVE.
Number of Data Records: 12792
Min/Max Data Record:
Date: 1961 08 17
Latitude: +24.00000
Longitude: -165.00000
Bathymetry, 2- Way Traveltime: 020745
Bathymetry, Corrected Depth: 1547.0
Magnetics Total Field, 1st Sensor: 361190
Magnetics Residual Field: -07270
Free-Air Anomaly: -1190
Min/Max Data Record:
Date: 1965 04 23
Latitude: +29.99900
Longitude: -156.25000
Bathymetry, 2- Way Traveltime: 085357
Bathymetry, Corrected Depth: 6466.0
Magnetics Total Field, 1st Sensor: 398600
Magnetics Residual Field: +06010
Free-Air Anomaly: +0000