Survey Identifier: CMAPPI5A
Format Acronym: MGD77
Data Center File Number: 03010007
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, CMAPPI5A
Survey Departure Date (yyyymmdd): 19610920
Survey Arrival Date (yyyymmdd): 19610922
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 TAPES
Gravity Instrumentation: LACOSTE-ROMBERG (S-11)
Additional Forms of Gravity Data: STRIP CHARTS
Topmost Latitude of Survey: +48
Bottommost Latitude: +42
Leftmost Longitude: -177
Rightmost Longitude: -176
General Digitizing Rate of Bathymetry: 102
Interpolation Scheme: 5-MIN INTERVALS,PEAKS,TROUGHS, AND STEEP SLOPES
General Digitizing Rate of Magnetics: 200
Sensor Depth: 0140
Reference Field Code: 03
Reference Field: IGRF-65
General Digitizing Rate of Gravity: 255
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: 321
Min/Max Data Record:
Date: 1961 09 20
Latitude: +42.00000
Longitude: -176.97800
Bathymetry, 2- Way Traveltime: 061332
Bathymetry, Corrected Depth: 4593.0
Magnetics Total Field, 1st Sensor: 429040
Magnetics Residual Field: -05360
Free-Air Anomaly: -0570
Min/Max Data Record:
Date: 1961 09 22
Latitude: +47.99000
Longitude: -176.62700
Bathymetry, 2- Way Traveltime: 080477
Bathymetry, Corrected Depth: 6079.0
Magnetics Total Field, 1st Sensor: 464720
Magnetics Residual Field: +04670
Free-Air Anomaly: -0010