Survey Identifier: POL7302
Format Acronym: MGD77
Data Center File Number: 03040059
Parameters Surveyed Code: 55530
File Creation Date (yyyymmdd): 19800209
Source Institution: NOAA/POL
Country: UNITED STATES
Platform Name: OCEANOGRAPHER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): BARRETT H. ERICKSON (POL)
Project: RP-2-OC-73 NAZCA PLATE PROJECT LEG 2
Funding: NFS/IDOE
Survey Departure Date (yyyymmdd): 19730308
Port of Departure: CALLAO, PERU
Survey Arrival Date (yyyymmdd): 19730330
Port of Arrival: ANTOFAGASTA, CHILE
Navigation Instrumentation: MAGNAVOX 706 SATELLITE/PROTOTYPE AN/SRN9
Bathymetry Instrumentation: RAYTHEON(CESP)/(PTR-105).SEE ADD DOC 18
Additional Forms of Bathymetric Data: ANALOG/ MAG. AND PAPER TAPE
Magnetics Instrumentation: VARIAN DIRECT READING MAGNETOMETER
Additional Forms of Magnetics Data: ANALOG/MAGNETIC AND PAPER TAPE
Gravity Instrumentation: ASKANIA GSS-2/ANSHUTZ/LACOSTE-ROMBERG
Additional Forms of Gravity Data: ANALOG/MAGNETIC AND PAPER TAPE
Seismic Instrumentation: SEE ADD. DOC 20-23
Topmost Latitude of Survey: -12
Bottommost Latitude: -26
Leftmost Longitude: -116
Rightmost Longitude: -070
General Digitizing Rate of Bathymetry: 51
General Digitizing Rate of Magnetics: 52
Magnetic Sensor Tow Distance: 229
General Digitizing Rate of Gravity: 53
Departure Base Station Gravity: 9783061
Departure Base Station Description: CALLAO, PERU ACIC#0091-4
Arrival Base Station Gravity: 9789032
Arrival Base Station Description: ANTOFAGASTA, CHILE ACIC#0224-0
Additional Documentation: EDO-240-H TRANSDUCER/RAYTHEON PF-101 RECORDER (ONE SECOND FULL SCALE SWEEP), REFLECTION: 120-CUBIC INCH BOLT AIR GUN-1900C/RIX AIR COMPRESSOR-K98/TELEDYNE, AND AQUATRONICS HYDROPHONE STREAMERS/TELEDYNE AMPLIFIER-FILTER SYSTEM/HP, REFRACTION: 8875A AMPLIFIERS/KROHN-HITE 3700 BAND PASS FILTER, REFRACTION: SSQ-41 SONOBUOYS, *** GRAVITY ANOMALY SIGNS REPAIRED 870206, OTHER PARAMETERS UNCHANGED ***
Number of Data Records: 6367
Min/Max Data Record:
Date: 1973 03 08
Latitude: -25.02000
Longitude: -116.00000
Bathymetry, 2- Way Traveltime: 001668
Bathymetry, Corrected Depth: 125.0
Magnetics Total Field, 1st Sensor: 254210
Magnetics Residual Field: -07260
Free-Air Anomaly: -2352
Min/Max Data Record:
Date: 1973 03 30
Latitude: -12.31160
Longitude: -70.69160
Bathymetry, 2- Way Traveltime: 102745
Bathymetry, Corrected Depth: 7838.0
Magnetics Total Field, 1st Sensor: 336160
Magnetics Residual Field: +03520
Free-Air Anomaly: +1351