Survey Identifier: UMPPION
Format Acronym: MGD77
Data Center File Number: 03010015
Parameters Surveyed Code: 55511
File Creation Date (yyyymmdd): 19800212
Source Institution: US COAST AND GEODIC SURVEY
Country: USA
Platform Name: PIONEER
Platform Type Code: 1
Platform Type: SHIP
Project: WEST COAST UPPER MANTLE PROJECT OPR-454
Funding: NOAA
Survey Departure Date (yyyymmdd): 19650721
Survey Arrival Date (yyyymmdd): 19651004
Navigation Instrumentation: SATELLITE/LORAN A/ CELESTIAL
Geodetic Datum/Position: LORAN A/ SATELLITE
Bathymetry Instrumentation: PDR (MK 15a) RAYTHEON SURVEY FATH DE 723
Additional Forms of Bathymetric Data: SMOOTH SHEETS
Magnetics Instrumentation: VARIAN PROTON MAGNETOMETER V-4931
Additional Forms of Magnetics Data: PUNCHED TAPE
Gravity Instrumentation: LACOSTE-ROMBERG#11/ WORDEN #114, #400
Additional Forms of Gravity Data: PUNCHED TAPE
Topmost Latitude of Survey: +40
Bottommost Latitude: +34
Leftmost Longitude: -134
Rightmost Longitude: -120
General Digitizing Rate of Bathymetry: 70
General Digitizing Rate of Magnetics: 75
Magnetic Sensor Tow Distance: 0230
General Digitizing Rate of Gravity: 83
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT'L 1930
Corrections Applied: DRIFT/ TIME DELAY/ EOTVUS EFFECT
Departure Base Station Gravity: 97996.9
Departure Base Station Description: BERKELEY CA/ALAMEDA CO/UNIV OF CA
Arrival Base Station Gravity: 97999.5
Arrival Base Station Description: SAN FRAN CA/BATTERY&SANSOME STS
Additional Documentation: GRAVITY ANOMALY SIGNS REPAIRED FEBRUARY 5, 1998.
Number of Data Records: 15332
Min/Max Data Record:
Date: 1965 07 21
Latitude: +30.08660
Longitude: -133.13660
Bathymetry, Corrected Depth: 29.0
Magnetics Total Field, 1st Sensor: 205790
Magnetics Residual Field: -06620
Observed Gravity: 9796520
Free-Air Anomaly: -1010
Min/Max Data Record:
Date: 1965 10 04
Latitude: +39.10660
Longitude: -120.75330
Bathymetry, Corrected Depth: 5550.0
Magnetics Total Field, 1st Sensor: 520170
Magnetics Residual Field: +95290
Observed Gravity: 9801140
Free-Air Anomaly: +0380