2.2.9 spase://NASA/NumericalData/Wind/EPACT/LEMT/Events/A1S/PT1H Wind Energetic Particle Acceleration, Composition and Transport (EPACT)/LEMT 1-Hr H,He,O,Fe Anisotropies for Events 2020-07-07T21:16:04Z This data set contains hourly resolution anisotropies in spacecraft and solar wind frames for 2.5-5 MeV/n H, He, O and Fe nuclei, plus 5-8 MeV/n He nuclei. First-, second- and third-order spacecraft-frame anisotropies, and the magnitude and direction angles, relative to the mean magnetic field, of the spacecraft-frame first-order anisotropy vectors are given. Ion spectral parameters used in anisotropy determinations, namely spectral power law index (gamma), mean energy of ions in sampled energy range, and ion flux at the mean energy, are given. Many solar wind parameter averages are given, including magnetic field magnitude and direction, solar wind density and flow speed and azimuthal angle. Standard deviations in all hourly averages are also given. See Tan et al, Ap.J.,661, 1297-1310, 2007, for discussions of anisotropies, reference frames, etc. As of 10/2011, the data cover 39 1997-2006 multi- day intervals that include energetic solar particle events. ASCII data words are comma-separated. For a given particle event, there are species-specific files. File naming uses the convention XX_a1s_YYYYMMDD, where XX = H (or Hng), He2 (2.5-5 MeV/n), He5 (5-8 MeV/n), O or Fe, and where YYYYMMDD is the day of the first record of the file. "Hng" means hydrogen - no gamma (as obtained from IMP 8 GME data); but see the readme file cited below on the use of EPACT/LEMT He data as providing an alternative power law index. Dr. Tycho T. Von Rosenvinge spase://SMWG/Person/Tycho.T.Von.Rosenvinge PrincipalInvestigator spase://SMWG/Person/Donald.V.Reames CoInvestigator spase://SMWG/Person/Lun.C.Tan DataProducer Readme file https://vho.nasa.gov/mission/wind/epact/a1s/A00_read_me_first.txt spase://VEPO/NumericalData/Wind/EPACT/LEMT/Events/A1S/PT1H spase://VSPO/NumericalData/Wind/EPACT/LEMT/Events/A1S/PT1H spase://SMWG/Repository/NASA/GSFC/Wind Online Open Wind repository https://vho.nasa.gov/mission/wind/epact/a1s/ File-level access to event-specific, species-specific ASCII files Text Please acknowledge Principal Investigator T. von Rosenvinge and the Wind EPACT team. Calibrated spase://SMWG/Instrument/Wind/EPACT EnergeticParticles 1997-11-03T00:00:00 2006-12-17T00:00:00 PT1H Heliosphere.NearEarth Time Column_1-Column_6 Universal time at start of hour average PT1H 6 Year, month, day, hour at start of average, and fractional day of year and fractional day of month at midpoint of average Temporal Magnitude of average magnetic field vector Column_7 PT1H nT Magnitude Magnetic Standard deviation in magnitude of average magnetic field vector Column_8 PT1H nT StandardDeviation Magnetic Latitude angle of average magnetic field vector Column_9 PT1H Deg DirectionAngle.ElevationAngle Magnetic Standard deviation in elevation angle of average magnetic field vector Column_10 PT1H Deg DirectionAngle.ElevationAngle StandardDeviation Magnetic Azimuthal angle of average magnetic field vector Column_11 PT1H Deg DirectionAngle.AzimuthAngle Magnetic Standard deviation in azimuth angle of average magnetic field vector Column_12 PT1H Deg DirectionAngle.ElevationAngle StandardDeviation Magnetic Solar wind ion density Column_15 PT1H cm**-3 Ion NumberDensity Standard deviation in solar wind ion density Column_16 PT1H cm**-3 Ion StandardDeviation NumberDensity Solar wind flow speed Column_17 PT1H 1000km/s Ion FlowSpeed Standard deviation in solar wind flow speed Column_18 PT1H 1000km/s Ion StandardDeviation FlowSpeed Solar wind flow azimuth angle Column_19 PT1H Deg Ion DirectionAngle.AzimuthAngle FlowVelocity Standard deviation in solar wind flow azimuth angle Column_20 PT1H Deg Ion DirectionAngle.AzimuthAngle StandardDeviation FlowVelocity Alfven speed Column_21 PT1H 1000km/s AlfvenVelocity Gamma Column_22 Spectral power law exponent PT1H Other Standard deviation in gamma Column_23 Standard deviation in spectral power law exponent PT1H Other Mean particle energy Column_24 Mean energy of ions in sampled energy range PT1H MeV/n Ion Average Energy Ion flux at mean energy Column_25 Logarithm of ion flux at mean particle energy PT1H (cm**2 sec ster MeV/n)**-1 Ion NumberFlux First order anisotropy, spacecraft frame Column_26 See Tan et al, Ap.J., 661, 1297, 2007 PT1H unit-less Ion Anisotropy NumberFlux RMS deviation in spacecraft frame first order anisotropy Column_27 See Tan et al, Ap.J., 661, 1297, 2007 PT1H unit-less Ion StandardDeviation Anisotropy NumberFlux Second order anisotropy, spacecraft frame Column_28 See Tan et al, Ap.J., 661, 1297, 2007 PT1H unit-less Ion Anisotropy NumberFlux RMS deviation in spacecraft frame second order anisotropy Column_29 See Tan et al, Ap.J., 661, 1297, 2007 PT1H unit-less Ion StandardDeviation Anisotropy NumberFlux Third order anisotropy, spacecraft frame Column_30 See Tan et al, Ap.J., 661, 1297, 2007 PT1H unit-less Ion Anisotropy NumberFlux RMS deviation in spacecraft frame third order anisotropy Column_31 See Tan et al, Ap.J., 661, 1297, 2007 PT1H unit-less Ion StandardDeviation Anisotropy NumberFlux Ion bulk flow speed Column_32 Bulk flow speed of energetic ion population; see Tan et al, Ap.J., 661, 1297, 2007 PT1H 1000km/s Ion FlowSpeed RMS deviation in ion bulk flow speed Column_33 PT1H 1000km/s Ion StandardDeviation FlowSpeed Longitude angle of ion bulk flow velocity Column_34 PT1H deg Ion DirectionAngle.AzimuthAngle FlowVelocity RMS deviation in longitude angle of ion bulk flow velocity Column_35 PT1H Deg Ion StandardDeviation DirectionAngle.AzimuthAngle FlowVelocity Difference between flow and field longitude angles Column_36 Difference between the longitude angles of the ion bulk flow velocity and the magnetic field vectors PT1H deg Ion DirectionAngle.AzimuthAngle FlowVelocity RMS deviation in difference between flow and field longitude angles Column_37 PT1H Deg Ion StandardDeviation DirectionAngle.AzimuthAngle FlowVelocity First order anisotropy, solar wind frame Column_38 Magnitude of ion first order anisotropy in solar wind frame; see Tan et al, Ap.J., 661, 1297, 2007 PT1H unit-less Ion Anisotropy NumberFlux RMS deviation in solar wind frame frame first order anisotropy Column_39 PT1H unit-less Ion StandardDeviation Anisotropy NumberFlux Longitude angle of first order anisotropy, solar wind frame Column_40 Magnitude of ion first order anisotropy in solar wind frame; see Tan et al, Ap.J., 661, 1297, 2007 PT1H Deg Ion DirectionAngle.AzimuthAngle Anisotropy NumberFlux RMS deviation in longitude angle of solar-wind-frame first order anisotropy Column_41 PT1H deg Ion StandardDeviation DirectionAngle.AzimuthAngle Anisotropy NumberFlux Component of first order anisotropy normal to magnetic field Column_42 Component of solar-wind-frame first order anisotropy vector perpendicular to mean magnetic field PT1H Unit-less Ion Component Anisotropy NumberFlux RMS deviation in component of first order anisotropy normal to magnetic field Column_43 PT1H Unit-less Ion StandardDeviation Component Anisotropy NumberFlux Component of first order anisotropy parallel to magnetic field Column_44 Component of solar-wind-frame first order anisotropy vector parallel to mean magnetic field PT1H Unit-less Ion Component Anisotropy NumberFlux RMS deviation in component of first order anisotropy parallel to magnetic field Column_45 PT1H Unit-less Ion StandardDeviation Component Anisotropy NumberFlux