Survey Identifier: NAV4124
Format Acronym: ARO88
Data Center File Number: 0550-035
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19940506
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Virgil R. Bettencourt
Project: Project Magnet: Project C32-951: Flight 4124 ~ 3,263 Nautical Miles
Survey Departure Date (yyyymmdd): 19881013
Survey Arrival Date (yyyymmdd): 19881013
Flight Line Spacings: Single Flight Line, Variable Directions
Magnetometers Used: Vector and Scalar Magnetometers
Aircraft Altitude: 25,000 FT AG
Aircraft Velocity: 240 Knots
Sampling Rate: 2
Sensor Tow Distance: STINGER
Total Observations: 16848
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -53
Bottommost Latitude: -76
Leftmost Longitude: -076
Rightmost Longitude: -044
Archive NGDC Tape Letter: W
Additional Documentation: To remove high frequency noise, a low pass filter has been applied to all the, flight line data above 15,000 feet. Data at the beginning and end of a flight, are noisy because the aircraft is maneuvering during it's climb or descent to, or from survey altitude which is approximately 25,000 feet. Data below 15,000, feet or climb and descent data are not smoothed.
Number of Data Records: 16848
Datafile Header Info: PJCT=C32-951 FLGT= 4124 ,MTH= 10,DAY= 17, YR=1988,JDY= 291 -TO- 291,RCD= 16850,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -75.6124
Latitude: -75.4891
Mag Total Intensity Calc nT: 33553
Time Gmt Sec: 2408.0800
Mag East Component Obs nT: 17503
Mag North Component Obs nT: 3722
Mag Horizontal Intensity Calc nT: 20148
Mag Vertical Intensity Obs nT: -44864
Mag Declination Calc Deg: 10.5967
Mag Inclination Calc Deg: -65.6493
Mag Total Intensity Obs nT: 33544
Alt Barometric Ft: 2600
Min/Max Data Record:
Longitude: -44.9123
Latitude: -53.0643
Mag Total Intensity Calc nT: 49245
Time Gmt Sec: 37089.7769
Mag East Component Obs nT: 21385
Mag North Component Obs nT: 10297
Mag Horizontal Intensity Calc nT: 22305
Mag Vertical Intensity Obs nT: -25341
Mag Declination Calc Deg: 30.4649
Mag Inclination Calc Deg: -48.9937
Mag Total Intensity Obs nT: 49540
Alt Barometric Ft: 27100