Survey Identifier: POL7101
Format Acronym: MGD77
Data Center File Number: 03020005
Parameters Surveyed Code: 55511
File Creation Date (yyyymmdd): 19800207
Source Institution: NOAA/POL
Country: UNITED STATES
Platform Name: SURVEYOR
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): B.H. ERICKSON AND W.H. LUCAS
Project: S PACIFIC TRAVERSE RP-7-71, POL 7101, LEGS 1-2
Funding: NOAA
Survey Departure Date (yyyymmdd): 19710416
Port of Departure: PAGO PAGO, SAMOA
Survey Arrival Date (yyyymmdd): 19710527
Port of Arrival: SEATTLE,WASHINGTON
Navigation Instrumentation: MAGNOVOX SATELLITE NAV. M706CH
Bathymetry Instrumentation: PDR-MCKIERNAN-TERRY/SEE ADD DOC 22
Magnetics Instrumentation: VARIAN PROTON PRECESSION V-4937
Additional Forms of Magnetics Data: PUNCH TAPE,ANALOG RECORDS
Gravity Instrumentation: LACOSTE-ROMBERG #S-51
Additional Forms of Gravity Data: ANALOG RECORDS
Topmost Latitude of Survey: +43
Bottommost Latitude: -31
Leftmost Longitude: +178
Rightmost Longitude: -077
General Digitizing Rate of Bathymetry: 53
Assumed Sound Velocity: 1463.
Interpolation Scheme: 5-MIN INTERVALS AND PEAKS AND TROUGHS
General Digitizing Rate of Magnetics: 01.
Magnetic Sensor Tow Distance: 0274
Reference Field Code: 03
Reference Field: IGRF-65
General Digitizing Rate of Gravity: 57
General Sampling Rate of Gravity: 90
Corrections Applied: DRIFT:LEG 1- -0.8 MGAL, LEG 2- -2.3 MG
Departure Base Station Description: PAGO PAGO, SAMOA FUEL STATION #43
Arrival Base Station Description: SEATTLE MARINE CENTER #T-408
Additional Documentation: GRAVITY ANAMOLY SIGNS REPAIRED 870206, OTHER PARAMETERS UNCHANGED. LEG 1:PAGO PAGO, SAMOA-LIMA, PERU, LEG 2:LIMA, PERU-SEATTLE, WASHINGTON, 06- GENERAL INSTRUMENTS NARROW BEAM/ RAYTHEON DE 723 FATHOMETER/ DIGITAL, DEPTH TRACKER (DDT)
Number of Data Records: 11423
Min/Max Data Record:
Date: 1971 04 16
Latitude: -30.08330
Longitude: -179.99470
Bathymetry, 2- Way Traveltime: 001190
Bathymetry, Corrected Depth: 89.0
Magnetics Total Field, 1st Sensor: 279080
Magnetics Residual Field: -05040
Free-Air Anomaly: -2685
Min/Max Data Record:
Date: 1971 05 27
Latitude: +42.04660
Longitude: +179.99860
Bathymetry, 2- Way Traveltime: 128445
Bathymetry, Corrected Depth: 9920.0
Magnetics Total Field, 1st Sensor: 522620
Magnetics Residual Field: +08380
Free-Air Anomaly: +2256