Explanatory Notes: The 2D Electron Angular Distributions included in this Data Set were measured by the Wind/SWE Strahl Detector (see Ogilvie et al., "SWE, a Comprehensive Plasma Instrument for the Wind Spacecraft", Space Sci. Rev., 71, 55, 1995). Each Angular Distribution was measured at a single Electron Energy. The Energy was selected by applying a Voltage between the Electrostatic Analyzer Plates. The Detector sampled 32 Energies between 19 eV and 1238 eV, and during normal Operation would Sweep through these Energies one at a Time with approximately 12 s Cadence. The 12 Anodes of the Instrument are set in a vertical Pattern in a Plane that contains the Spacecraft Spin Axis, spanning a Field of View +/-28° centered around the Ecliptic (with uneven Angular spacing between Anodes). The Wind Spacecraft Spin Axis is set at a Right Angle with the Ecliptic Plane, allowing different Azimuthal Angles to be sampled as the Spacecraft Spins (3 s Spin Period). These Azimuthal Bins have a Fixed Separation of 3.53°. Each Strahl (and Antistrahl) Distribution measured by the Spacecraft consists of a 14 × 12 Angular Grid of Electron Counts, that was measured at a Fixed Energy during a single Spacecraft Spin. Counts are converted into Physical Units of f(v) (e.g., cm^-6s^3) in the standard Fashion by accounting for the Detector Efficiency and Geometric Factor. The Data Set reported here contains: f_strahl, f_antistrahl, f_strahl_counts, f_antistrahl_counts, phi_strahl, phi_antistrahl, theta, energy.
Version:2.3.0
Explanatory Notes: The 2D Electron Angular Distributions included in this Data Set were measured by the Wind/SWE Strahl Detector (see Ogilvie et al., "SWE, a Comprehensive Plasma Instrument for the Wind Spacecraft", Space Sci. Rev., 71, 55, 1995). Each Angular Distribution was measured at a single Electron Energy. The Energy was selected by applying a Voltage between the Electrostatic Analyzer Plates. The Detector sampled 32 Energies between 19 eV and 1238 eV, and during normal Operation would Sweep through these Energies one at a Time with approximately 12 s Cadence. The 12 Anodes of the Instrument are set in a vertical Pattern in a Plane that contains the Spacecraft Spin Axis, spanning a Field of View +/-28° centered around the Ecliptic (with uneven Angular spacing between Anodes). The Wind Spacecraft Spin Axis is set at a Right Angle with the Ecliptic Plane, allowing different Azimuthal Angles to be sampled as the Spacecraft Spins (3 s Spin Period). These Azimuthal Bins have a Fixed Separation of 3.53°. Each Strahl (and Antistrahl) Distribution measured by the Spacecraft consists of a 14 × 12 Angular Grid of Electron Counts, that was measured at a Fixed Energy during a single Spacecraft Spin. Counts are converted into Physical Units of f(v) (e.g., cm^-6s^3) in the standard Fashion by accounting for the Detector Efficiency and Geometric Factor. The Data Set reported here contains: f_strahl, f_antistrahl, f_strahl_counts, f_antistrahl_counts, phi_strahl, phi_antistrahl, theta, energy.
| Role | Person | |
|---|---|---|
| 1. | PrincipalInvestigator | spase://SMWG/Person/Keith.W.Ogilvie |
| 2. | MetadataContact | spase://SMWG/Person/Robert.E.McGuire |
| 3. | MetadataContact | spase://SMWG/Person/Lee.Frost.Bargatze |
Wind STRAHL0
Wind Project
Access to Data in CDF Format via ftp from SPDF
Access to Data in CDF Format via http from SPDF
Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb
Epoch Time, Nominal Time of the Strahl Measurement, Milliseconds since 1 AD
f Strahl Intensities versus Phi and Theta Angles in Sweep Energy Order, Logarithmic Scale, Animated GIFs
f Strahl Intensities versus Phi and Theta Angles in Sweep Energy Order, Linear Scale, Animated GIFs
f Antistrahl Intensities versus Phi and Theta Angles in Sweep Energy Order, Logarithmic Scale, Animated GIFs
f Antistrahl Intensities versus Phi and Theta Angles in Sweep Energy Order, Linear Scale, Animated GIFs
f Strahl Counts versus Phi and Theta Angles in Sweep Energy Order, Logarithmic Scale, Animated GIFs
f Strahl Counts versus Phi and Theta Angles in Sweep Energy Order, Linear Scale, Animated GIFs
f Antistrahl Counts versus Phi and Theta Angles in Sweep Energy Order, Logarithmic Scale, Animated GIFs
f Antistrahl Counts versus Phi and Theta Angles in Sweep Energy Order, Linear Scale, Animated GIFs
The Phi (GSE) associated with the Unit Vector pointing in Electron Velocity Direction for the Strahl Distribution
The Phi (GSE) associated with the Unit Vector pointing in Electron Velocity Direction for the Antistrahl Distribution
The Theta (GSE) associated with unit vector pointing in electron velocity direction
Energy of the Sampled Electrons used to construct the f Strahl and f_antistrahl distributions