Survey Identifier: NAV1220
Format Acronym: ARO88
Data Center File Number: 0560-004
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 1220 ~ 2,572 Nautical Miles
Survey Departure Date (yyyymmdd): 19930806
Survey Arrival Date (yyyymmdd): 19930807
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: 14151
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +40
Bottommost Latitude: +35
Leftmost Longitude: -028
Rightmost Longitude: +025
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: 14146
Datafile Header Info: PJCT=D32-353 FLGT= 1220 ,MTH= 8,DAY= 6, YR=1993,JDY= 218 -TO- 219,RCD= 14153,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -27.2441
Latitude: 35.5596
Mag Total Intensity Calc nT: 42217
Time Gmt Sec: 1.1180
Mag East Component Obs nT: 24180
Mag North Component Obs nT: -5925
Mag Horizontal Intensity Calc nT: 24855
Mag Vertical Intensity Obs nT: 32273
Mag Declination Calc Deg: -13.6907
Mag Inclination Calc Deg: 49.8508
Mag Total Intensity Obs nT: 42213
Alt Barometric Ft: 925
Min/Max Data Record:
Longitude: 24.0659
Latitude: 39.1444
Mag Total Intensity Calc nT: 44529
Time Gmt Sec: 86399.1172
Mag East Component Obs nT: 27794
Mag North Component Obs nT: 954
Mag Horizontal Intensity Calc nT: 27809
Mag Vertical Intensity Obs nT: 36826
Mag Declination Calc Deg: 1.9659
Mag Inclination Calc Deg: 55.8109
Mag Total Intensity Obs nT: 44525
Alt Barometric Ft: 23943