Survey Identifier: NAV4048


Format Acronym: ARO88
Data Center File Number: 0480-055
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19890906
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Fred M. Valentine
Project: Project Magnet: Project C32-352: Flight 4048 ~ 4,096 Nautical Miles
Survey Departure Date (yyyymmdd): 19830406
Survey Arrival Date (yyyymmdd): 19830406
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: 20404
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +20
Bottommost Latitude: -18
Leftmost Longitude: -150
Rightmost Longitude: -099
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: 20406
Datafile Header Info: PJCT=C32-352 FLGT= 4048 ,MTH= 4,DAY= 6, YR=1983,JDY= 96 -TO- 96,RCD= 20407,NAV=ESG ,CMP=INS2

Min/Max Data Record:
Longitude: -149.5987
Latitude: -17.5482
Mag Total Intensity Calc nT: 32276
Time Gmt Sec: 8131.9020
Mag East Component Obs nT: 28637
Mag North Component Obs nT: 3252
Mag Horizontal Intensity Calc nT: 28874
Mag Vertical Intensity Obs nT: -18688
Mag Declination Calc Deg: 6.4154
Mag Inclination Calc Deg: -30.4946
Mag Total Intensity Obs nT: 35684
Alt Barometric Ft: 0

Min/Max Data Record:
Longitude: -99.0517
Latitude: 19.5774
Mag Total Intensity Calc nT: 43098
Time Gmt Sec: 49408.7778
Mag East Component Obs nT: 32256
Mag North Component Obs nT: 7261
Mag Horizontal Intensity Calc nT: 32714
Mag Vertical Intensity Obs nT: 31716
Mag Declination Calc Deg: 12.9339
Mag Inclination Calc Deg: 47.6860
Mag Total Intensity Obs nT: 43041
Alt Barometric Ft: 26900