Survey Identifier: NAV1188
Format Acronym: ARO88
Data Center File Number: 0550-005
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: Virgil R. Bettencourt
Project: Project Magnet: Project C32-954: Flight 1188 ~ 3,873 Nautical Miles
Survey Departure Date (yyyymmdd): 19890806
Survey Arrival Date (yyyymmdd): 19890807
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: 21528
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +76
Bottommost Latitude: +49
Leftmost Longitude: -031
Rightmost Longitude: +011
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: 21528
Datafile Header Info: PJCT=C32-954 FLGT= 1188 ,MTH= 8,DAY= 6, YR=1989,JDY= 218 -TO- 219,RCD= 21530,NAV=I1 ,CMP=I1
Min/Max Data Record:
Longitude: -30.1257
Latitude: 49.9841
Mag Total Intensity Calc nT: 48920
Time Gmt Sec: 1.1328
Mag East Component Obs nT: 8864
Mag North Component Obs nT: -6100
Mag Horizontal Intensity Calc nT: 8868
Mag Vertical Intensity Obs nT: 45235
Mag Declination Calc Deg: -18.4810
Mag Inclination Calc Deg: 66.9543
Mag Total Intensity Obs nT: 48867
Alt Barometric Ft: 300
Min/Max Data Record:
Longitude: 10.9495
Latitude: 75.3654
Mag Total Intensity Calc nT: 53331
Time Gmt Sec: 86398.6328
Mag East Component Obs nT: 18311
Mag North Component Obs nT: -158
Mag Horizontal Intensity Calc nT: 19288
Mag Vertical Intensity Obs nT: 52588
Mag Declination Calc Deg: -0.6861
Mag Inclination Calc Deg: 80.4283
Mag Total Intensity Obs nT: 53370
Alt Barometric Ft: 29000