Survey Identifier: V3505
Format Acronym: MGD77
Data Center File Number: 01030230
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19890703
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: U.S.A.
Platform Name: VEMA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): DENNIS HAYES
Project: CRUISE V35, LEG 05
Survey Departure Date (yyyymmdd): 19780604
Port of Departure: MANILA, PHILIPINES
Survey Arrival Date (yyyymmdd): 19780704
Port of Arrival: TAMUNING, GUAM
Navigation Instrumentation: SATELLITE/SEXTANT
Geodetic Datum/Position: SATELLITE/DEAD RECKONING
Bathymetry Instrumentation: (SEE ADD. DOC./18)
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: L-DG0 MFG PROTON-PRECESSION
Additional Forms of Magnetics Data: ANALOG RECORDS
Gravity Instrumentation: GRAF-ASKANIA GSS2-12
Additional Forms of Gravity Data: ANALOG RECORDS
Seismic Instrumentation: L-DGO 25CU.IN.AIRGUN, EEL,DRUM RECORDER
Formats of Seismic Data: TWO, 2-CHANNEL SHEET RECORDS
Topmost Latitude of Survey: +21
Bottommost Latitude: +11
Leftmost Longitude: +120
Rightmost Longitude: +145
General Digitizing Rate of Bathymetry: 060
General Sampling Rate of Bathymetry: ONE SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: NONE
General Digitizing Rate of Magnetics: 060
General Sampling Rate of Magnetics: 06
Reference Field Code: 04
Reference Field: IGRF1975
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN NAV. PTS.
General Digitizing Rate of Gravity: 100
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNATIONAL1930
Reference System Code: 2
Reference System: POTSDAM SYSTEM
Additional Documentation: 06 - 3.5 AND 12 KHZ, WIDE BEAM (60 DEG), 1 SECOND SWEEP
Number of Data Records: 7636
Min/Max Data Record:
Date: 1978 06 04
Latitude: +11.18680
Longitude: +120.54450
Bathymetry, 2- Way Traveltime: 000600
Bathymetry, Corrected Depth: 45.0
Magnetics Total Field, 1st Sensor: 363670
Magnetics Residual Field: -01470
Free-Air Anomaly: -1859
Min/Max Data Record:
Date: 1978 07 02
Latitude: +20.95330
Longitude: +144.34130
Bathymetry, 2- Way Traveltime: 107500
Bathymetry, Corrected Depth: 8229.0
Magnetics Total Field, 1st Sensor: 400980
Magnetics Residual Field: +03230
Free-Air Anomaly: +1017