Survey Identifier: NAV2069
Format Acronym: ARO88
Data Center File Number: 0560-021
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 D32-451: Flight 2069 ~ 3,943 Nautical Miles
Survey Departure Date (yyyymmdd): 19931126
Survey Arrival Date (yyyymmdd): 19931127
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: 21055
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -22
Bottommost Latitude: -51
Leftmost Longitude: -004
Rightmost Longitude: +018
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: 21055
Datafile Header Info: PJCT=D32-451 FLGT= 2069 ,MTH= 11,DAY= 26, YR=1993,JDY= 330 -TO- 331,RCD= 21057,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -3.1696
Latitude: -50.0195
Mag Total Intensity Calc nT: 25793
Time Gmt Sec: 1.7280
Mag East Component Obs nT: 9572
Mag North Component Obs nT: -4744
Mag Horizontal Intensity Calc nT: 10468
Mag Vertical Intensity Obs nT: -26876
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 25795
Alt Barometric Ft: 7762
Min/Max Data Record:
Longitude: 17.6452
Latitude: -22.4601
Mag Total Intensity Calc nT: 29914
Time Gmt Sec: 86399.7266
Mag East Component Obs nT: 12924
Mag North Component Obs nT: -3092
Mag Horizontal Intensity Calc nT: 13315
Mag Vertical Intensity Obs nT: -23037
Mag Declination Calc Deg: -13.7244
Mag Inclination Calc Deg: -61.3813
Mag Total Intensity Obs nT: 29902
Alt Barometric Ft: 27076