2.3.2 spase://NASA/NumericalData/STEREO-A/PLASTIC/HeliumPlusParameter/P1D STEREO-A PLasma and Supra-Thermal Ion Composition (PLASTIC) He⁺ Counts and Relative Energy Flux in four Velocity Ranges normalized by the Solar Wind Speed, Level 3 (L3), Daily Data 2021-04-27T15:38:11Z STEREO-A Plasma and Suprathermal Ion Composition, Singly-charged Helium, He⁺, counts and relative differential energy fluxes binned by the ion speed relative to the solar wind bulk speed, four speed ratio bins. STEREO PLASTIC daily suprathermal He⁺ pickup ion signatures include He⁺ energy spectra, directional information, and contenxt information, such as the H⁺ plasma velocity. The four speed ratio, V/Vsw, bin ranges of are: 1.44 to 1.85, 1.85 to 2.50, 2.50 to 3.50, and 3.50 to 8.00. The identification of He⁺ is based on the measurement of energy per charge, E/q, time-of-flight, TOF, and total energy deposited in the solid state detector, SSD. These data include double coincidence measurements by using E/Qi and TOF and triple coincidence measurements by using E/Q, TOF, and SSD, see for example Galvin et al., Space Sci. Rev. 136, p 437-468, 2008. The proton bulk parameters including speed, Vsw, thermal velocity, Vth, and Density, Np, in this file are derived from a one-deminsional, 1-D, Maxwellian fit to a single detector rate with no coincidence required. These proton bulk parameters are corrected for background and dead time. The software version number used to derive the proton bulk parameters is shown in the file header and is described in the section on file formats. The most recent update of the proton bulk parameters can be found on the following STEREO website: http://stereo-ssc.nascom.nasa.gov/data/ins_data/plastic/level2/Protons/ For a full explanation, see the description at: https://stereo-ssc.nascom.nasa.gov/data/ins_data/plastic/level3/HePlus/HePlus_flux/READ_ME_PLASTIC_HePlus_Fluxes.pdf The singly-charged Helium, He⁺, flux data are also available from the STEREO Science Center in ASCII format via: https://stereo-ssc.nascom.nasa.gov/data/ins_data/plastic/level3/HePlus/ Note that this SPASE Numerical Description only describes the MESSENGER Magnetometer data stored in Common Data Files. Please acknowledge the Principal Investigator, Dr. Antoinette Galvin of the University of New Hampshire, and NASA contract NAS5-00132.. See the rules of use available at http://stereo.sr.unh.edu/data/PLASTIC_Resources/index.htm. spase://SMWG/Person/Antoinette.B.Galvin PrincipalInvestigator spase://SMWG/Person/Robert.M.Candey MetadataContact spase://SMWG/Person/Lee.Frost.Bargatze MetadataContact STEREO PLASTIC Instrument web site, UNH http://stereo.sr.unh.edu/stereo.html STEREO Plasma and Supra-Thermal Ion Composition, PLASTIC, instrument web site, release notes, status, and other information, hosted by University of New Hampshire, UNH en STEREO PLASTIC Index web site, UNH http://stereo.sr.unh.edu/data/PLASTIC_Resources/index.htm STEREO PLASTIC instrument resources web site, hosted by University of New Hampshire, UNH en NSSDC Master Catalog, STEREO A, PLASTIC instrument https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=2006-047A-04 General information concerning the STEREO A, Plasma and Supra-Thermal Ion Composition, PLASTIC, instrument en STEREO PLASTIC He⁺ Fluxes Readme file, UNH https://stereo-ssc.nascom.nasa.gov/data/ins_data/plastic/level3/HePlus/HePlus_flux/READ_ME_PLASTIC_HePlus_Fluxes.pdf Readme for STEREO PLASTIC daily suprathermal He⁺ relative fluxes, last update: November 06, 2017 en spase://VSPO/NumericalData/STEREO-A/PLASTIC/he_plus_parameters/24HR spase://VSPO/NumericalData/STEREO-A/PLASTIC/HeliumPlusParameter/P1D spase://SMWG/Repository/NASA/GSFC/SPDF Online Open FTPS from SPDF (not with most browsers) ftps://spdf.gsfc.nasa.gov/pub/data/stereo/ahead/l3/plastic/heplus/24hr/ Access to Data in CDF Format via ftp from SPDF HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/stereo/ahead/l3/plastic/heplus/24hr/ Access to Data in CDF Format via http from SPDF CDAWeb https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=STA_L3_PLA_HEPLUS_24HR&index=sp_phys STA_L3_PLA_HEPLUS_24HR Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb CDF None Please acknowledge the Principal Investigator A.B. Galvin. Please acknowledge the Data Providers and CDAWeb when using these Data. spase://SMWG/Repository/NASA/GSFC/SPDF Online Open CDAWeb HAPI Server https://cdaweb.gsfc.nasa.gov/hapi STA_L3_PLA_HEPLUS_24HR Web Service to this product using the HAPI interface. CSV Please acknowledge the Principal Investigator A.B. Galvin. Please acknowledge the Data Providers and CDAWeb when using these Data. spase://SMWG/Repository/NASA/GSFC/STEREO_SC Online Open STEREO Science Center - CDF https://stereo-ssc.nascom.nasa.gov/data/ins_data/plastic/level3/HePlus/HePlus_flux/CDFs/ CDF Calibrated spase://SMWG/Instrument/STEREO-A/PLASTIC EnergeticParticles ThermalPlasma 2007-04-01T00:00:00.000 2017-07-31T00:00:00.000 P1D Heliosphere.Remote1AU Epoch Time, since 0 AD epoch Epoch Time Tags, time since 0 AD, beginning of interval This Parameter exhibits an increasing Monotonic Progression P1D ms 1.0e-3>s Epoch E14.8 LinearScale 01-Jan-1990 00:00:00.000 31-Dec-2030 00:00:00.000 31-Dec-9999 23:59:59.999 Temporal Time PB5 Time series defined by using: EPOCH time_pb5 Time PB5, Time of Observation, Year, Day, and Milliseconds of Day This Parameter exhibits an increasing Monotonic Progression P1D LinearScale 3 Year 1 a 1997 2030 Day of Year (Jan 1 = Day 1) 2 d 237 365 Elapsed milliseconds of day 3 ms 0 0 -2147483648 Array Temporal Data Processing Date processing_date Data Processing Date The date and time when the CDF was created P1D Processing_date A32 01-Jan-2007 00:00:00.000 31-Dec-2030 00:00:00.000 Temporal Data Input File input_file Data Input File P1D Input_file A34 Other Proton Bulk Speed, 1-D Fit Time series defined by using: EPOCH proton_bulk_speed Proton Bulk Speed, from one-dimensional Maxwellian Fit P1D km/s 1.0e3>m/s TimeSeries Proton Speed E11.3 200.0 3000.0 -1.0e+31 Proton Scalar Velocity 1 Proton Thermal Speed, 1-D Fit Time series defined by using: EPOCH proton_thermal_speed Proton Thermal Speed, from one-dimensional Maxwellian Fit PT1M km/s 1.0e3>m/s TimeSeries Proton Thermal_Speed E9.2 0.0 500.0 -1.0e+31 Proton Scalar ThermalSpeed 1 Proton Number Density, 1-D Fit Time series defined by using: EPOCH proton_number_density Proton Number Density, from one-dimensional Maxwellian Fit P1D cm^-3 1.0e6>m^-3 TimeSeries Proton No. Density E9.2 0.0 500.0 -1.0e+31 Proton Scalar NumberDensity 1 Singly charged Helium, Relative Energy Flux Time series defined by using: EPOCH he_plus_rel_energy_flux Singly charged Helium, He⁺, Relative Energy Flux in four ranges of the ion velocity divided by the solar wind bulk speed, V/Vsw. Range 0: 8.00>V/Vsw>3.50, Range 1: 3.50>V/Vsw>2.50, Range 2: 2.50>V/Vsw>1.85, Range 3: 1.85>V/Vsw>1.44, unit proportional to differential energy flux: keV/(cm^ sr keV) P1D s^-1 TimeSeries E9.2 4 He+_Rel_EFlux_8.0>V/Vsw>3.5 1 He+_Rel_EFlux_3.5>V/Vsw>2.5 2 He+_Rel_EFlux_2.5>V/Vsw>1.85 3 He+_Rel_EFlux_1.85>V/Vsw>1.44 4 0.0 300.0 -1.0e+31 Ion Array NumberFlux 2 Singly charged Helium, Counts Time series defined by using: EPOCH he_plus_counts Singly charged Helium, He⁺, Counts in four ranges of the ion velocity divided by the solar wind bulk speed, V/Vsw. Range 0: 8.00>V/Vsw>3.50, Range 1: 3.50>V/Vsw>2.50, Range 2: 2.50>V/Vsw>1.85, Range 3: 1.85>V/Vsw>1.44, unit proportional to differential energy flux: keV/(cm^ sr keV) P1D TimeSeries E9.2 4 He+_Cts_8.0>V/Vsw>3.5 1 He+_Cts_3.5>V/Vsw>2.5 2 He+_Cts_2.5>V/Vsw>1.85 3 He+_Cts_1.85>V/Vsw>1.44 4 0.0 200000.0 -1.0e+31 Ion Array Counts 2