Survey Identifier: NAV1229
Format Acronym: ARO88
Data Center File Number: 0570-002
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: Donald R. Wilson
Project: Project Magnet: Project D32-452: Flight 1229 ~ 3,241 Nautical Miles
Survey Departure Date (yyyymmdd): 19940118
Survey Arrival Date (yyyymmdd): 19940119
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: 17368
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +25
Bottommost Latitude: +12
Leftmost Longitude: -049
Rightmost Longitude: -022
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: 17368
Datafile Header Info: PJCT=D32-452 FLGT= 1229 ,MTH= 1,DAY= 18, YR=1994,JDY= 18 -TO- 19,RCD= 17370,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -48.0294
Latitude: 12.9782
Mag Total Intensity Calc nT: 31542
Time Gmt Sec: 1.2890
Mag East Component Obs nT: 26368
Mag North Component Obs nT: -9406
Mag Horizontal Intensity Calc nT: 27714
Mag Vertical Intensity Obs nT: 7158
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 31543
Alt Barometric Ft: 1903
Min/Max Data Record:
Longitude: -22.9486
Latitude: 24.1504
Mag Total Intensity Calc nT: 39167
Time Gmt Sec: 86399.2891
Mag East Component Obs nT: 30812
Mag North Component Obs nT: -6817
Mag Horizontal Intensity Calc nT: 31570
Mag Vertical Intensity Obs nT: 27670
Mag Declination Calc Deg: -12.4901
Mag Inclination Calc Deg: 44.9502
Mag Total Intensity Obs nT: 39189
Alt Barometric Ft: 28799