Preliminary SGL AIRGrav Flight Data 2008 AGAP-GAMBIT Antarctica Data for Lamont-Doherty Earth Observatory ============================================================================================= AIRGrav_Gravity_Flight_###.xyz - Geosoft format ASCII file --------------------------------------------------------------------------------------------- Col Name Format Units Description --------------------------------------------------------------------------------------------- 1 LAT F15.7 degrees Latitude decimal degrees WGS-84 2 LONG F15.7 degrees Longitude decimal degrees WGS-84 3 DATE A9 YYYYMMDD Date 4 DAY A5 DDD Day of year 5 UTCSECOND F10.2 seconds UTC seconds past midnight 6 LAMX F15.2 m Lambert conic conformal WGS-84 7 LAMY F15.2 m Lambert conic conformal WGS-84 8 WGSHGT F10.2 m Height WGS-84 (height above GRS80 ellipsoid) 9 DEM F10.2 m Digital elevation model (GTOPO30 height above EGM96 geoid) 10 FX F15.2 mGal Gravimeter X acceleration 11 FY F15.2 mGal Gravimeter Y acceleration 12 FZ F15.2 mGal Gravimeter Z acceleration 13 EotGrav F15.2 mGal Eotvos and latitude corrected gravity, unfiltered 14 FACor F10.2 mGal Free air correction 15 FAGrav70s F11.2 mGal Free air gravity, 70s full wavelength filter 16 FAGrav100s F11.2 mGal Free air gravity, 100s full wavelength filter 17 FAGrav140s F11.2 mGal Free air gravity, 140s full wavelength filter --------------------------------------------------------------------------------------------- Notes: 70s full wavelength filter = 0% pass at 52.5s, 100% pass at 105s = approx 2.6 km half-wavelength resolution at 75 m/s flying speed 100s full wavelength filter = 0% pass at 75s, 100% pass at 150s = approx 3.7 km half-wavelength resolution at 75 m/s flying speed 140s full wavelength filter = 0% pass at 105s, 100% pass at 210s = approx 5.2 km half-wavelength resolution at 75 m/s flying speed -Positions are for the gravimeter, not the GPS antenna. -2 Hz data rate ============================================================================================= AIRGrav_Attitude_Flight_###.xyz - Geosoft format ASCII file --------------------------------------------------------------------------------------------- Col Name Format Units Description --------------------------------------------------------------------------------------------- 1 DATE A9 YYYYMMDD Date 2 DAY A5 DDD Day of year 3 SECOND F10.2 seconds UTC seconds past midnight 4 PITCH F10.3 degrees Laser scanner pitch 5 ROLL F10.3 degrees Laser scanner roll 6 HEADING F10.3 degrees Laser scanner heading 7 LAT1 F15.7 degrees Latitude decimal degrees WGS-84 8 LONG1 F15.7 degrees Longitude decimal degrees WGS-84 9 LAMX1 F15.2 m Lambert conic conformal WGS-84 10 LAMY1 F15.2 m Lambert conic conformal WGS-84 11 WGSHGT F10.2 m Height WGS-84 (height above GRS80 ellipsoid) --------------------------------------------------------------------------------------------- Notes: -Positions are for the laser scanner, not the GPS antenna. -10 Hz data rate --------------------------------------------------------------- Sander Geophysics Ltd. 260 Hunt Club Road Ottawa ON K1V 1C1 CANADA Phone: +1 613 521 9626 Fax: +1 613 521 0215 email: info@sgl.com web: www.sgl.com