Survey Identifier: NAV1219
Format Acronym: ARO88
Data Center File Number: 0560-003
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 D32-353: Flight 1219 ~ 3,585 Nautical Miles
Survey Departure Date (yyyymmdd): 19930525
Survey Arrival Date (yyyymmdd): 19930526
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: 18977
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +39
Bottommost Latitude: +14
Leftmost Longitude: -077
Rightmost Longitude: -017
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: 18977
Datafile Header Info: PJCT=D32-353 FLGT= 1219 ,MTH= 5,DAY= 25, YR=1993,JDY= 145 -TO- 146,RCD= 18979,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -76.4729
Latitude: 14.5649
Mag Total Intensity Calc nT: 32468
Time Gmt Sec: 1.7300
Mag East Component Obs nT: 20207
Mag North Component Obs nT: -8010
Mag Horizontal Intensity Calc nT: 20643
Mag Vertical Intensity Obs nT: 6152
Mag Declination Calc Deg: -18.9379
Mag Inclination Calc Deg: 10.9157
Mag Total Intensity Obs nT: 32465
Alt Barometric Ft: 354
Min/Max Data Record:
Longitude: -17.4526
Latitude: 38.5256
Mag Total Intensity Calc nT: 53757
Time Gmt Sec: 86399.7266
Mag East Component Obs nT: 31418
Mag North Component Obs nT: -3750
Mag Horizontal Intensity Calc nT: 31975
Mag Vertical Intensity Obs nT: 49574
Mag Declination Calc Deg: -10.4278
Mag Inclination Calc Deg: 67.3121
Mag Total Intensity Obs nT: 53738
Alt Barometric Ft: 26807