2.2.2 spase://VMO/NumericalData/Geotail/CPI/HPA_PT64S Geotail CPI Hot Plasma Moments Geotail CPI HPA High Time Resolution Plasma Moments 2010-04-05T22:16:33Z The CPI/HPA Hot Plasma Analyzer high time resolution moments of hot plasma: * Ion number density * Ion average temperature * Ion bulk flow velocity * Electron number density * Electron average temperature The CPI/HPA data are good in the magnetosphere and may be usefull in the magnetosheath. spase://SMWG/Person/Louis.A.Frank PrincipalInvestigator spase://SMWG/Person/William.R.Paterson DataProducer spase://SMWG/Person/Jan.Merka MetadataContact CPI Survey Plots http://www-pi.physics.uiowa.edu/cpi Geotail CPI description and survey plots. spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb Online Open FTP access to files at SPDF ftp://spdf.gsfc.nasa.gov/pub/data/geotail/cpi_hpamom HTTP access to files at SPDF http://spdf.gsfc.nasa.gov/pub/data/geotail/cpi_hpamom In CDF via HTTP from SPDF CDAWeb http://cdaweb.gsfc.nasa.gov/ GE_HPAMOM_CPI CDF None spase://SMWG/Repository/UIowa/ParticlesImagingGroup Online Open University of Iowa: Geotail CPI HPA high time resolution data http://erebus.physics.uiowa.edu/cpi-data/hp Text ASCII spase://SMWG/Instrument/Geotail/CPI/HPA ThermalPlasma 1992-10-06T00:00:28 -P2Y PT64S Earth.Magnetosheath Earth.Magnetosphere Earth.Magnetosphere.Magnetotail The electron sensors for the CPI HP analyzer require regular intercalibration. Also, their sensitivity declined over time. A detrending factor is applied so that average electron densities are consistent with ion densities. The HP ion data and the electron data are good through a the end of 2005. The sensitivity decline had been linear until the end of 2005, but hasn't been checked for 2006 or 2007. That may affect the HP electron parameters for 2006 and 2007, but not the HP ion parameters. In June of 2007, the HP sensor bias voltage was raised to improve the electron gain, which over the course of 15 years had dropped by about half. This requires recalibration of both the HP ion sensors and the HP electron sensors. Time Epoch Time in milliseconds, centered, since CDF Epoch ms 1e-3>s 08-Sep-1992 00:00:00.000 31-Dec-2020 20:00:00.000 -1.0E31 Temporal Ni Density_i Ion number density (Hot Plasma Analyzer), scalar The ions are assumed to be protons cm^-3 1e6>m^-3 F8.3 0.01 1000.0 -1.0E31 Proton AlphaParticle Ion Moment Scalar NumberDensity Ti Temp_i Kinetic temperature of HPA ions, scalar Calculated by integrating the distribution function Component.K F11.0 10000.0 5.0E8 -1.0E31 Proton AlphaParticle Ion Moment Scalar Temperature Vi Velocity_i Ion bulk flow velocity vector in GSE coordinates km/s 1e3>m/s Cartesian GSE F9.2 3 Vx GSE Component.I 1 -1400.0 1400.0 -1.0E31 Vy GSE Component.J 2 -1400.0 1400.0 -1.0E31 Vz GSE Component.K 3 -1400.0 1400.0 -1.0E31 Proton AlphaParticle Ion Moment Vector FlowVelocity Ne Density_e Electron number density (Hot Plasma Analyzer), scalar cm^-3 1e6>m^-3 F8.3 0.01 1000.0 -1.0E31 Electron Moment Scalar NumberDensity Te Temp_e Kinetic temperature of HPA electrons, scalar Calculated by integrating the distribution function Component.K F11.0 10000.0 5.0E8 -1.0E31 Electron Moment Scalar Temperature