Survey Identifier: NAV1222
Format Acronym: ARO88
Data Center File Number: 0560-006
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 C32-353: Flight 1222 ~ 3,465 Nautical Miles
Survey Departure Date (yyyymmdd): 19930531
Survey Arrival Date (yyyymmdd): 19930601
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: 18924
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +15
Bottommost Latitude: -08
Leftmost Longitude: -021
Rightmost Longitude: +006
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: 18920
Datafile Header Info: PJCT=D32-353 FLGT= 1222 ,MTH= 5,DAY= 31, YR=1993,JDY= 151 -TO- 152,RCD= 18926,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -20.9960
Latitude: -7.8077
Mag Total Intensity Calc nT: 28336
Time Gmt Sec: 0.3600
Mag East Component Obs nT: 21192
Mag North Component Obs nT: -7556
Mag Horizontal Intensity Calc nT: 22306
Mag Vertical Intensity Obs nT: -17654
Mag Declination Calc Deg: -18.2106
Mag Inclination Calc Deg: -38.2038
Mag Total Intensity Obs nT: 28344
Alt Barometric Ft: 564
Min/Max Data Record:
Longitude: 5.0994
Latitude: 14.7994
Mag Total Intensity Calc nT: 32552
Time Gmt Sec: 86398.3594
Mag East Component Obs nT: 31365
Mag North Component Obs nT: -3198
Mag Horizontal Intensity Calc nT: 31929
Mag Vertical Intensity Obs nT: 6418
Mag Declination Calc Deg: -6.3783
Mag Inclination Calc Deg: 11.3790
Mag Total Intensity Obs nT: 32570
Alt Barometric Ft: 26365