2.2.2 spase://VMO/NumericalData/THEMIS/A/MOM/PT3S THEMIS-A: On Board moments: ESA and SST Electron/Ion moments, density, flux, velocity, pressure and temperature. THEMIS-A MOM 2011-11-08T21:00:51Z THEMIS-A On Board moments. On board data outputs include number density, particle flux, energy flux, and a six component symetric momentum flux tensor. Other moments are calculated from these partial moments on the ground adding total pressure, velocity, plasma temperature (measured as a three dimensional energy vector), and a six component symetric pressure tensor to the list of data products. Number density and total pressure are scalar outputs. Velocity is calculated in DSL, GSE, GSM, and MFA coordinates (coordinate descriptions are listed below in Table 1). Magnetic Field Aligned pressure tensor and temperature are calculated as well. All quantities are calculated for both ions and electrons from a combination of ESA and SST data. Moments data are taken at spin resolution in all ESA survey modes except burst. The spacecraft potential, as measure by the EFI, is used to correct for spacecraft charging by shifting the particle energies for calculation; this eliminates contamination from photo-electrons. Also, weighting factors are used to account for instrument specific energy and angle efficiency variations. Table 1: Coordinate Descriptions. Despun Sun - L-vector (DSL): Z-axis points towards the spin axis, the Y-axis is obtained from the cross product of Z and the Spacecraft-Sun direction as viewed from the probe. The X-axis sits in the Z-axis-Sun plane and completes a right handed system. Geocentric Solar Ecliptic (GSE): Z-axis is normal to the solar ecliptic, the X-axis points from earth towards the Sun, and Y complets a right handed system. Geocentric solar Magnetosphereic (GSM): X-axis points from Earth to the Sun, the Y-axis is orthogonal to the Earth's magnetic dipole and points towards the dusk side, and the X-Z plane contains the dipole axis. Magnetic Field Aligned (MFA): Z-axis points along magnetic field lines, the Y-axis is the orthonormal cross product of the Z-axis and a vector pointing towards the Sun, and the X-axis completes the right handed system. NASA Contract NAS5-02099, V. Angelopoulos for use of data from the THEMIS Mission, C.W. Carlson, and J. McFadden. spase://SMWG/Person/Vassilis.Angelopoulos PrincipalInvestigator spase://SMWG/Person/Charles.W.Carlson CoInvestigator spase://SMWG/Person/James.P.McFadden CoInvestigator spase://SMWG/Repository/NASA/GSFC/SPDF Online Open FTP access to files at SPDF ftp://spdf.gsfc.nasa.gov/pub/data/themis/tha/l2/mom/ NASA/GSFC CDAWeb ftp access to the data. HTTP access to files at SPDF http://spdf.gsfc.nasa.gov/pub/data/themis/tha/l2/mom/ NASA/GSFC CDAWeb ftp access to the data. CDF Please acknowledge the THEMIS science team and the CDAWeb team at GSFC/SPDF. spase://SMWG/Repository/NASA/GSFC/SPDF Online Open CDAWeb http://cdaweb.gsfc.nasa.gov/sp_phys/ THA_L2_MOM Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb Text Please acknowledge the THEMIS science team and the CDAWeb team at GSFC/SPDF. spase://SMWG/Repository/UCB/THEMIS Online Open THEMIS L2 MOM data at UC Berkeley http://themis.ssl.berkeley.edu/data/themis/tha/l2/mom/ CDF data files for download, organized by date. CDF None Calibrated Level 2 spase://SMWG/Instrument/THEMIS/A/MOM ThermalPlasma EnergeticParticles IonComposition 2007-08-02T00:00:30 -P7D PT3S Heliosphere.NearEarth Earth.Magnetosphere.Magnetotail Earth.Magnetosphere.Main Earth.Magnetosheath Due to bit errors and data misdirection, ESA data (including moments) before April 27, 2007 should be considered dubious. Other data loss and formatting errors in the moments calculations and the ETC were not corrected until Aug. 6, 2007. Potential data from the EFI was not properly included in calculations between Nov. 18-22, 2007. EFI booms on THEMIS-A were not deployed until Jan 14, 2008, 17:00:00 UT. Moments data before this date is suspect to error from photoelectrons and spacecraft charging. Ion Moment Data Quality tha_peim_data_quality 0 = good data, 1 = missing S/C potential, 2 = electron density greater than 2*ion density, 3 = ion density greater than 2*electron density 0 4 Other Electron Moment Data Quality tha_peem_data_quality 0 = good data, 1 = missing S/C potential, 2 = electron density greater than 2*ion density, 3 = ion density greater than 2*electron density 0 4 Other ESA On Board Moment (MOM) Ion Density, THEMIS-A tha_peim_densityQ ESA Scalar ion number density calculated on board the spacecraft. cm^-3 1e6>m^-3 0.0 1.0E10 NaN Ion Moment NumberDensity Ion Total Pressure tha_peim_ptotQ Total ion pressure calculated on the ground from on board moments. eV/cm^3 1.60217653e-13>Pa 0.0 1.0E10 NaN Ion Moment EnergyDensity Ion Particle Flux Vector tha_peim_fluxQ ESA ion particle flux vector (in DSL coordinates) calculated on board the spacecraft. #/(cm^2*s) 1e4>#/(m^2*s) Cartesian SR2 3 Fx_ion MOM ESA-A 1 -1.0E10 1.0E10 NaN Fy_ion MOM ESA-A 2 -1.0E10 1.0E10 NaN Fz_ion MOM ESA-A 3 -1.0E10 1.0E10 NaN Ion Vector Moment NumberFlux Ion Momentum Flux Tensor tha_peim_mftensQ ESA ion momentum flux tensor (in DSL coordinates) calculated on board the spacecraft (six-component, off-diagonal terms are symetric). eV/cm^3 1.60217653e-13>J/(m^3) Cartesian SR2 6 MFxx_ion MOM ESA-A 1 -1.0E10 1.0E10 NaN MFyy_ion MOM ESA-A 2 -1.0E10 1.0E10 NaN MFzz_ion MOM ESA-A 3 -1.0E10 1.0E10 NaN MFxy_ion MOM ESA-A 4 -1.0E10 1.0E10 NaN MFxz_ion MOM ESA-A 5 -1.0E10 1.0E10 NaN MFyz_ion MOM ESA-A 6 -1.0E10 1.0E10 NaN Ion Moment Tensor EnergyDensity Ion Energy Flux Vector tha_peim_efluxQ ESA Ion energy flux vector (in DSL coordinates) calculated on board the spacecraft. eV/(cm^2*s) 1.60217653e-15>J/(m^2*s) Cartesian SR2 3 Efx_ion MOM ESA-A 1 -1.0E10 1.0E10 NaN Efy_ion MOM ESA-A 2 -1.0E10 1.0E10 NaN Efz_ion MOM ESA-A 3 -1.0E10 1.0E10 NaN Ion Vector Moment EnergyFlux Ion Velocity Vector in DSL tha_peim_velocity_dslQ ESA Ion velocity vector (in DSL coordinates, see chart in data description) calculated on the ground from spacecraft moments. km/s 1e3>m/s Cartesian SR2 3 Vx_ion DSL MOM ESA-A 1 -10000.0 10000.0 NaN Vy_ion DSL MOM ESA-A 2 -10000.0 10000.0 NaN Vz_ion DSL MOM ESA-A 3 -10000.0 10000.0 NaN Ion Vector Moment Velocity Ion Velocity Vector in GSE tha_peim_velocity_gseQ ESA Ion velocity vector (in GSE coordinates, see chart in data description) calculated on the ground from spacecraft moments. km/s 1e3>m/s Cartesian GSE 3 Vx_ion GSE MOM ESA-A 1 -10000.0 10000.0 NaN Vy_ion GSE MOM ESA-A 2 -10000.0 10000.0 NaN Vz_io n GSE MOM ESA-A 3 -10000.0 10000.0 NaN Ion Vector Moment Velocity Ion Velocity Vector in GSM tha_peim_velocity_gsmQ ESA Ion velocity vector (in GSM coordinates, see chart in data description) calculated on the ground from spacecraft moments. km/s 1e3>m/s Cartesian GSM 3 Vx_ion GSM MOM ESA-A 1 -10000.0 10000.0 NaN Vy_ion GSM MOM ESA-A 2 -10000.0 10000.0 NaN Vz_ion GSM MOM ESA-A 3 -10000.0 10000.0 NaN Ion Vector Moment Velocity Ion Pressure Tensor tha_peim_ptensQ ESA Ion pressure tensor (in DSL coordinates, see chart in data description) calculated on the ground from spacecraft moments. eV/cm^3 1.60217653e-13>Pa Cartesian SR2 6 Pxx_ion MOM ESA-A 1 -1.0E10 1.0E10 NaN Pyy_ion MOM ESA-A 2 -1.0E10 1.0E10 NaN Pzz_ion MOM ESA-A 3 -1.0E10 1.0E10 NaN Pxy_ion MOM ESA-A 4 -1.0E10 1.0E10 NaN Pxz_ion MOM ESA-A 5 -1.0E10 1.0E10 NaN Pyz_ion MOM ESA-A 6 -1.0E10 1.0E10 NaN Ion Tensor Moment EnergyDensity Magnetic Field Vector DSL (Same time array as MOM Ion ESA data) tha_peim_magQ Magnetic field vector in DSL coordinates (same time array as MOM Ion ESA data); for calculated of field aligned moments. nT 1e-9>T Cartesian SR2 3 Bx_ion DSL MOM ESA-A 1 -10000.0 10000.0 NaN By_ion DSL MOM ESA-A 2 -10000.0 10000.0 NaN Bz_ion DSL MOM ESA-A 3 -10000.0 10000.0 NaN Vector Magnetic Ion Velocity Vector, Field Aligned tha_peim_velocity_magQ ESA Ion velocity vector in magnetic field aligned coordinates; calculated on the ground from spacecraft moments. km/s 1e3>m/s Cartesian MFA 3 Vx_ion FA MOM ESA-A 1 -10000.0 10000.0 NaN Vy_ion FA MOM ESA-A 2 -10000.0 10000.0 NaN Vz_ion FA MOM ESA-A 3 -10000.0 10000.0 NaN Ion Vector Moment Velocity Ion Temperature, Field Aligned (TprpFA1, TprpFA2, TparFA) tha_peim_t3_magQ Ion Temperature, Field Aligned (TprpFA1, TprpFA2, TparFA) ESA Three dimentional temperature in magnetic field aligned coordinates (see chart in data description). eV 1.60217653e-19>J Cartesian MFA 3 Tx_ion FA MOM ESA-A 1 0.0 1.0E10 NaN Ty_ion FA MOM ESA-A 2 0.0 1.0E10 NaN Tz_ion FA MOM ESA-A 3 0.0 1.0E10 NaN Ion Vector Moment Energy Ion Pressure Tensor, Field Aligned tha_peim_ptens_magQ Ion Pressure Tensor, Field Aligned ESA Symmetric pressure tensor about magnetic field aligned coordinates (see chart in data description); calculated on the ground from spacecraft moments. eV/cm^3 1.60217653e-13>Pa Cartesian MFA 6 Pxx_ion FA MOM ESA-A 1 -1.0E10 1.0E10 NaN Pyy_ion FA MOM ESA-A 2 -1.0E10 1.0E10 NaN Pzz_ion FA MOM ESA-A 3 -1.0E10 1.0E10 NaN Pxy_ion FA MOM ESA-A 4 -1.0E10 1.0E10 NaN Pxz_ion FA MOM ESA-A 5 -1.0E10 1.0E10 NaN Pyz_ion FA MOM ESA-A 6 -1.0E10 1.0E10 NaN Ion Tensor Moment EnergyDensity tha_peim_time tha_peim_time tha_peim_time, UTC, in seconds since 01-Jan-1970 00:00:00; marks center time of data sample. Not including leap seconds. s 0.0 5.0E9 NaN Temporal ESA On Board Moment (MOM) Electron Density, THEMIS-A tha_peem_densityQ ESA electron density calculated on board the spacecraft. cm^-3 1e6>m^-3 0.0 1.0E10 NaN Electron Scalar Moment NumberDensity Electron Total Pressure tha_peem_ptotQ ESA Electron total pressure calculated on the ground from spacecraft moments. eV/cm^3 1.60217653e-13>Pa 0.0 1.0E10 NaN Electron Scalar Moment EnergyDensity Electron Particle Flux Vector tha_peem_fluxQ ESA Electron particle flux vector (in DSL coordinates) calculated on board the spacecraft. #/(cm^2*s) 1e4>#/(m^2*s) Cartesian SR2 3 Fx_elec MOM ESA-A 1 -1.0E10 1.0E10 NaN Fy_elec MOM ESA-A 2 -1.0E10 1.0E10 NaN Fz_elec MOM ESA-A 3 -1.0E10 1.0E10 NaN Electron Vector Moment NumberFlux Electron Momentum Flux Tensor tha_peem_mftensQ ESA Electron momentum flux tensor (in DSL coordinates) calculated on board the spacecraft. eV/cm^3 1.60217653e-13>J/(m^3) Cartesian SR2 6 MFxx_elec MOM ESA-A 1 -1.0E10 1.0E10 NaN MFyy_elec MOM ESA-A 2 -1.0E10 1.0E10 NaN MFzz_elec MOM ESA-A 3 -1.0E10 1.0E10 NaN MFxy_elec MOM ESA-A 4 -1.0E10 1.0E10 NaN MFxz_elec MOM ESA-A 5 -1.0E10 1.0E10 NaN MFyz_elec MOM ESA-A 6 -1.0E10 1.0E10 NaN Electron Tensor Moment EnergyDensity Electron Energy Flux Vector tha_peem_efluxQ ESA Electron energy flux vector (in DSL coordinates) calculated on board the spacecraft. eV/(cm^2*s) 1.60217653e-15>J/(m^2*s) Cartesian SR2 3 Efx_elec MOM ESA-A 1 -1.0E10 1.0E10 NaN Efy_elec MOM ESA-A 2 -1.0E10 1.0E10 NaN Efz_elec MOM ESA-A 3 -1.0E10 1.0E10 NaN Electron Vector Moment EnergyFlux Electron Velocity Vector in DSL tha_peem_velocity_dslQ ESA Electron velocity vectors (in DSL coordinates) calculated on the ground from spacecraft moments. km/s 1e3>m/s Cartesian SR2 3 Vx_elec DSL MOM ESA-A 1 -10000.0 10000.0 NaN Vy_elec DSL MOM ESA-A 2 -10000.0 10000.0 NaN Vz_elec DSL MOM ESA-A 3 -10000.0 10000.0 NaN Electron Vector Moment Velocity Electron Velocity Vector in GSE tha_peem_velocity_gseQ ESA Electron velocity vector (in GSE coordinates) calculated on the ground from spacecraft moments. km/s 1e3>m/s Cartesian GSE 3 Vx_elec GSE MOM ESA-A 1 -10000.0 10000.0 NaN Vy_elec GSE MOM ESA-A 2 -10000.0 10000.0 NaN Vz_elec GSE MOM ESA-A 3 -10000.0 10000.0 NaN Electron Vector Moment Velocity Electron Velocity Vector in GSM tha_peem_velocity_gsmQ ESA Electron velocity vector (in GSM coordinates) calculated on the ground from spacecraft moments. km/s 1e3>m/s Cartesian GSM 3 Vx_elec GSM MOM ESA-A 1 -10000.0 10000.0 NaN Vy_elec GSM MOM ESA-A 2 -10000.0 10000.0 NaN Vz_elec GSM MOM ESA-A 3 -10000.0 10000.0 NaN Electron Vector Moment Velocity Electron Pressure Tensor tha_peem_ptensQ ESA Electron pressure tensor (in DSL coordinates) calculated on the ground from spacecraft moments. eV/cm^3 1.60217653e-13>Pa Cartesian SR2 6 Pxx_elec MOM ESA-A 1 -1.0E10 1.0E10 NaN Pyy_elec MOM ESA-A 2 -1.0E10 1.0E10 NaN Pzz_elec MOM ESA-A 3 -1.0E10 1.0E10 NaN Pxy_elec MOM ESA-A 4 -1.0E10 1.0E10 NaN Pxz_elec MOM ESA-A 5 -1.0E10 1.0E10 NaN Pyz_elec MOM ESA-A 6 -1.0E10 1.0E10 NaN Electron Tensor Moment EnergyDensity Magnetic Field Vector DSL (Same time array as MOM Electron ESA data) tha_peem_magQ Magnetic Field Vector in DSL coordinates (same time array as MOM Electron ESA data); for calculation of field-aligned moments. nT 1e-9>T Cartesian SR2 3 Bx_elec DSL MOM ESA-A 1 -10000.0 10000.0 NaN By_elec DSL MOM ESA-A 2 -10000.0 10000.0 NaN Bz_elec DSL MOM ESA-A 3 -10000.0 10000.0 NaN Vector Magnetic Electron Velocity Vector, Field Aligned tha_peem_velocity_magQ ESA Electron velocity vector in magnetic field aligned coordinates; calculated on the ground from spacecraft moments. km/s 1e3>m/s Cartesian MFA 3 Vx_elec FA MOM ESA-A 1 -10000.0 10000.0 NaN Vy_elec FA MOM ESA-A 2 -10000.0 10000.0 NaN Vz_elec FA MOM ESA-A 3 -10000.0 10000.0 NaN Electron Vector Moment Velocity Electron Temperature, Field Aligned (TprpFA1, TprpFA2, TparFA) tha_peem_t3_magQ Three dimentional electron temperature in magnetic field aligned coordinates; calculated on the ground from spacecraft moments. (TprpFA1, TprpFA2, TparFA) 3d temperatures around magnetic axis (Z) and normal axes (X,Y), where Y is Z direction crosed into Sun direction, and X completes orthogonal system. eV 1.60217653e-19>J Cartesian MFA 3 Tx_elec FA MOM ESA-A 1 0.0 1.0E10 NaN Ty_elec FA MOM ESA-A 2 0.0 1.0E10 NaN Tz_elec FA MOM ESA-A 3 0.0 1.0E10 NaN Electron Vector Moment Energy Electron Pressure Tensor, Field Aligned tha_peem_ptens_magQ ESA Electron pressure tensor in magnetic field aligned coordinates; calculated on the ground from spacecraft moments. Pressure tensor around magnetic axis (Z) and normal axes (X,Y), where Y is Z direction crosed into Sun direction, and X completes orthogonal system. eV/cm^3 1.60217653e-13>Pa Cartesian MFA 6 Pxx_elec FA MOM ESA-A 1 -1.0E10 1.0E10 NaN Pyy_elec FA MOM ESA-A 2 -1.0E10 1.0E10 NaN Pzz_elec FA MOM ESA-A 3 -1.0E10 1.0E 10 NaN Pxy_elec FA MOM ESA-A 4 -1.0E10 1.0E10 NaN Pxz_elec FA MOM ESA-A 5 -1.0E10 1.0E10 NaN Pyz_elec FA MOM ESA-A 6 -1.0E10 1.0E10 NaN Electron Tensor Moment EnergyDensity tha_peem_time tha_peem_time tha_peem_time, UTC, in seconds since 01-Jan-1970 00:00:00; marks center time of data sample. Not including leap seconds. s 0.0 5.0E9 NaN Temporal Spacecraft Potential, THEMIS-A tha_pxxm_pot Spacecraft potential as measured by the EFI. V 0.0 1.0E10 NaN Other tha_pxxm_time tha_pxxm_time tha_pxxm_time, UTC, in seconds since 01-Jan-1970 00:00:00; marks center time of data sample. Not including leap seconds. s 0.0 5.0E9 NaN Temporal