Year = 2001 Month = December Day = 18 Day-of-year = 352 Site = Poker Flat Sunrise = 20:06 Sunset = 23:26 Moonrise = 22:44 Moonset = 02:18 Moon_age = 3 Aurora = Disturbed - Arcs reached the zenith for significant periods Cloud = Overcast all night Magnetometer = Unknown ASC = Unknown MSP = Ran all night but several channels failed VHF_radar = Good data coverage for the entire 24 hours Electrojet = Unknown SDI = Ran all night, poor data Bomem = Unknown MSG = Unknown Trailer = Unknown UW_FPI = Unknown CRL_NF_FPI = Unknown CRL_AS_FPI = Unknown Stratosperic_lidar = Unknown Rayleigh_lidar = Unknown Resonance_lidar = Unknown Ebert = Unknown Comments = SDI wind fields are zero; not sure why. MC 27-May-2002