Survey Identifier: P484AT
Format Acronym: MGD77
Data Center File Number: 06910007
Parameters Surveyed Code: 05500
File Creation Date (yyyymmdd): 19870810
Source Institution: USGS Branch of Pacific Marine Geology
Country: United States
Platform Name: Powell
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Jack Swenson
Survey Departure Date (yyyymmdd): 19840825
Port of Departure: LV BOSTON, MA
Survey Arrival Date (yyyymmdd): 19840911
Port of Arrival: AR PORTLAND, ME
Navigation Instrumentation: LORAN-C TRANSIT SAT
Topmost Latitude of Survey: +45
Bottommost Latitude: +40
Leftmost Longitude: -071
Rightmost Longitude: -067
General Digitizing Rate of Magnetics: 10
General Digitizing Rate of Gravity: 10
Number of Data Records: 24843
Min/Max Data Record:
Date: 1984 08 25
Latitude: +40.86871
Longitude: -70.71910
Magnetics Total Field, 1st Sensor: 548317
Magnetics Residual Field: -06569
Observed Gravity: 9802395
Free-Air Anomaly: -0229
Min/Max Data Record:
Date: 1984 09 11
Latitude: +44.36306
Longitude: -67.08135
Magnetics Total Field, 1st Sensor: 569003
Magnetics Residual Field: +12652
Observed Gravity: 9805857
Free-Air Anomaly: +0367