Survey Identifier: L5B79NC


Format Acronym: MGD77
Data Center File Number: 06050089
Parameters Surveyed Code: 31533
File Creation Date (yyyymmdd): 19870609
Source Institution: USGS Branch of Pacific Marine Geology
Country: United States
Platform Name: Lee
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Dave McCulloch
Project: L5b79NC
Survey Departure Date (yyyymmdd): 19791201
Port of Departure: LV MONTEREY
Survey Arrival Date (yyyymmdd): 19791216
Port of Arrival: AR REDWOOD CITY
Navigation Instrumentation: MINIRANGER,SATNAV,LORAN C
Geodetic Datum/Position: PRIM-MINIRANGER SEC-INTEGRATED NAV
Bathymetry Instrumentation: 12KHZ NARROW 1 SEC
Additional Forms of Bathymetric Data: RECORDER ROLLS
Gravity Instrumentation: L&R S-53
Additional Forms of Gravity Data: ANALOG RECORDS
Seismic Instrumentation: UNIBOOM,24 CHANNEL/3.5KHZ WIDE 1 SEC
Topmost Latitude of Survey: +36
Bottommost Latitude: +34
Leftmost Longitude: -122
Rightmost Longitude: -120
General Sampling Rate of Bathymetry: 20/SECONDS
Assumed Sound Velocity: 14630
General Digitizing Rate of Gravity: 15
General Sampling Rate of Gravity: 15
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT,IAG 1967
Reference System Code: 3
Reference System: SYSTEM IGNS-71
Corrections Applied: DRIFT CORRECTIONS
Departure Base Station Gravity: 9688523
Departure Base Station Description: SAN DIEGO, CA.
Arrival Base Station Gravity: 9688552
Arrival Base Station Description: REDWOOD CITY, CA.
Number of Data Records: 19094

Min/Max Data Record:
Date: 1979 12 01
Latitude: +34.48833
Longitude: -121.90688
Observed Gravity: 9796297
Free-Air Anomaly: -0504

Min/Max Data Record:
Date: 1979 12 16
Latitude: +35.56070
Longitude: -120.63762
Observed Gravity: 9798091
Free-Air Anomaly: +0178