Wind SWE electron pitch angle product providing electron fluxes at 30 directional bins relative to the instantaneous magnetic field direction at 16 different energy levels from the old mode (VEIS-era) of the electron instrument. The electron pitch-angle distributions included in this data set are derived from sorting, by pitch (wrt B) and energy, the solar wind electron distributions measured by the Wind/SWE electron instrument (see Ogilvie et al., "SWE, a comprehensive plasma instrument for the Wind spacecraft", Space Sci. Rev., 71, 55, 1955). Pitch-angle distrubutions, organized by energy, are computed from 3s measurements which are spaced either 6s or 12s in time. These quantities are reliable and citable with caution, meaning that the PI advises that the user should discuss their interpretations with a member of the SWE science team before publishing. The following comments are intended to aid in the use and interpretation of the electron pitch-angle distributions reported in this data set. For each 'energy spectrum', observations are made at 16 energy channels ranging from about 10 eV to as much as 3 keV. The exact energies at which observations are made is time-varying, and this data set reports the energy each channel observes (along with the observations themselves) at any time. The observations made at each energy are sorted into pitch-angle bins, six degrees in width, from 0 degrees (flux nearly parallel to B) to 180 degrees (flux nearly anti-parallel with B). A "spin-averaged" set of observations (aggregated from all pitch-angle bins, each energy) is also reported, one value for each energy channel. The value reported for any bin (including the spin-averaged "energy bins") is given as a phase-space density, f [#/{cc*(cm/s)^3}], averaged over contributing detectors. The data set reported here contains: f_pitch_E00, f_pitch_E01, f_pitch_E02, f_pitch_E03, f_pitch_E04, f_pitch_E05, f_pitch_E06, f_pitch_E07, f_pitch_E08, f_pitch_E09, f_pitch_E10, f_pitch_E11, f_pitch_E12, f_pitch_E13, f_pitch_E14, f_pitch_E15 (the pitch-angle distributions for each energy channel, with 30 pitch-angle bins for each), and f_pitch_SPA (with 16 spin-averaged energy bins). For reference, the electron speeds ( V , in cm/s) corresponding to the energy channels used, are reported in this data set.

Version:2.2.9

- ResourceHeader
- ResourceName
- Wind Solar Wind Experiment (SWE) Electron Pitch-Angle Distributions (6-12s rate) (VEIS-era Mode)

- AlternateName
- WI_H4_SWE_v01

- ReleaseDate
- 2020-07-07 21:16:06Z

- Description
Wind SWE electron pitch angle product providing electron fluxes at 30 directional bins relative to the instantaneous magnetic field direction at 16 different energy levels from the old mode (VEIS-era) of the electron instrument. The electron pitch-angle distributions included in this data set are derived from sorting, by pitch (wrt B) and energy, the solar wind electron distributions measured by the Wind/SWE electron instrument (see Ogilvie et al., "SWE, a comprehensive plasma instrument for the Wind spacecraft", Space Sci. Rev., 71, 55, 1955). Pitch-angle distrubutions, organized by energy, are computed from 3s measurements which are spaced either 6s or 12s in time. These quantities are reliable and citable with caution, meaning that the PI advises that the user should discuss their interpretations with a member of the SWE science team before publishing. The following comments are intended to aid in the use and interpretation of the electron pitch-angle distributions reported in this data set. For each 'energy spectrum', observations are made at 16 energy channels ranging from about 10 eV to as much as 3 keV. The exact energies at which observations are made is time-varying, and this data set reports the energy each channel observes (along with the observations themselves) at any time. The observations made at each energy are sorted into pitch-angle bins, six degrees in width, from 0 degrees (flux nearly parallel to B) to 180 degrees (flux nearly anti-parallel with B). A "spin-averaged" set of observations (aggregated from all pitch-angle bins, each energy) is also reported, one value for each energy channel. The value reported for any bin (including the spin-averaged "energy bins") is given as a phase-space density, f [#/{cc*(cm/s)^3}], averaged over contributing detectors. The data set reported here contains: f_pitch_E00, f_pitch_E01, f_pitch_E02, f_pitch_E03, f_pitch_E04, f_pitch_E05, f_pitch_E06, f_pitch_E07, f_pitch_E08, f_pitch_E09, f_pitch_E10, f_pitch_E11, f_pitch_E12, f_pitch_E13, f_pitch_E14, f_pitch_E15 (the pitch-angle distributions for each energy channel, with 30 pitch-angle bins for each), and f_pitch_SPA (with 16 spin-averaged energy bins). For reference, the electron speeds ( V , in cm/s) corresponding to the energy channels used, are reported in this data set.

- Acknowledgement
- Please acknowledge the Wind/SWE electron instrument team and NASA/GSFC.
- Contacts
Role Person 1. PrincipalInvestigator spase://SMWG/Person/Keith.W.Ogilvie - InformationURL
- Name
- Wind/SWE Description

- Description
Wind/SWE (Solar Wind Experiment) electron instruments, history and data products

- PriorIDs
- spase://VHO/NumericalData/Wind/SWE/H4_PT06S
- spase://VSPO/NumericalData/Wind/SWE/H4/PT06S

- AccessInformation
- RepositoryID
- spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb

- Availability
- Online

- AccessRights
- Open

- AccessURL
- Name
- FTPS from SPDF (not with most browsers)

- Description
Repository of the Wind/SWE H4 (v01) electron data.

- AccessURL
- Name
- HTTPS from SPDF

- Description
In CDF via HTTP from SPDF

- AccessURL
- Name
- CDAWeb

- ProductKey
- WI_H4_SWE

- Format
- CDF

- Acknowledgement
- Please acknowledge the CDAWeb team and NASA/GSFC's NSSDC.

- ProviderResourceName
- WI_H4_SWE

- ProviderVersion
- v01

- MeasurementType
- ThermalPlasma

- TemporalDescription
- TimeSpan
- StartDate
- 1994-11-30 00:00:00Z

- StopDate
- 2001-07-10 00:00:35Z

- Note
- Ranges from instrument commissioning up to reconfiguration.

- Cadence
- PT06S

- Exposure
- PT03S

- ObservedRegion
- Heliosphere.NearEarth

- ObservedRegion
- Heliosphere.Inner

- ObservedRegion
- Earth.Magnetosheath

- ObservedRegion
- Earth.Magnetosphere.Magnetotail

- Parameter #1
- Name
- Time

- ParameterKey
- Epoch

- Description
Timestamp marks beginning of a measurement interval.

- Caveats
- Measurements are from observations over a single spin period of approx 3 sec, but read out on either 6 or 12 sec telemetery cadence, depending on telemetery rate.
- Units
- CDF_Epoch
- ValidMin
- 01-Jan-1990 00:00:00.000
- ValidMax
- 31-Dec-2029 23:59:59.999
- FillValue
- 31-Dec-9999 23:59:59.999
- Support
- SupportQuantity
- Temporal

- Parameter #2
- Name
- Electron Speed

- ParameterKey
- Ve

- Description
Electron speed corresponding to fluxes, by channel.

- Units
- cm/s
- UnitsConversion
- 1e-2>m/s
- RenderingHints
- DisplayType
- StackPlot

- AxisLabel
- Ve

- ValueFormat
- E12.5

- ScaleType
- LinearScale

- Structure
- Size
- 16

- Description
For energy channel EXX, Ve[XX] gives the corresponding electron speed (cm/s).

- ValidMin
- 0.0
- ValidMax
- 1.0E10
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Magnitude

- ParticleQuantity
- Velocity

- Parameter #3
- Name
- Electron PADs, Energy 00

- ParameterKey
- f_pitch_E00

- Description
Electron pitch-angle distributions (6 degrees/bin), energy channel 00

- Caveats
- For the E00 distribution, Ve[00] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Image

- AxisLabel
- f_pitch_E00

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 30

- Description
For the E00 distribution, f_pitch_E00[xx] gives the contents (for fluxes with directions ranging in six-degree increments from nearly parallel to nearly anti-parallel with B) of pitch-angle-bin xx=: 00, 01, ..., 29.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- ParticleQuantity
- PhaseSpaceDensity

- Parameter #4
- Name
- Electron PADs, Energy 01

- ParameterKey
- f_pitch_E01

- Description
Electron pitch-angle distributions (6 degrees/bin), energy channel 01

- Caveats
- For the E01 distribution, Ve[01] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Image

- AxisLabel
- f_pitch_E01

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 30

- Description
For the E01 distribution, f_pitch_E01[xx] gives the contents (for fluxes with directions ranging in six-degree increments from nearly parallel to nearly anti-parallel with B) of pitch-angle-bin xx=: 00, 01, ..., 29.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- ParticleQuantity
- PhaseSpaceDensity

- Parameter #5
- Name
- Electron PADs, Energy 02

- ParameterKey
- f_pitch_E02

- Description
Electron pitch-angle distributions (6 degrees/bin), energy channel 02

- Caveats
- For the E02 distribution, Ve[02] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Image

- AxisLabel
- f_pitch_E02

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 30

- Description
For the E02 distribution, f_pitch_E02[xx] gives the contents (for fluxes with directions ranging in six-degree increments from nearly parallel to nearly anti-parallel with B) of pitch-angle-bin xx=: 00, 01, ..., 29.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- ParticleQuantity
- PhaseSpaceDensity

- Parameter #6
- Name
- Electron PADs, Energy 03

- ParameterKey
- f_pitch_E03

- Description
Electron pitch-angle distributions (6 degrees/bin), energy channel 03

- Caveats
- For the E03 distribution, Ve[03] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Image

- AxisLabel
- f_pitch_E03

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 30

- Description
For the E03 distribution, f_pitch_E03[xx] gives the contents (for fluxes with directions ranging in six-degree increments from nearly parallel to nearly anti-parallel with B) of pitch-angle-bin xx=: 00, 01, ..., 29.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- ParticleQuantity
- PhaseSpaceDensity

- Parameter #7
- Name
- Electron PADs, Energy 04

- ParameterKey
- f_pitch_E04

- Description
Electron pitch-angle distributions (6 degrees/bin), energy channel 04

- Caveats
- For the E04 distribution, Ve[04] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Image

- AxisLabel
- f_pitch_E04

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 30

- Description
For the E04 distribution, f_pitch_E04[xx] gives the contents (for fluxes with directions ranging in six-degree increments from nearly parallel to nearly anti-parallel with B) of pitch-angle-bin xx=: 00, 01, ..., 29.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- ParticleQuantity
- PhaseSpaceDensity

- Parameter #8
- Name
- Electron PADs, Energy 05

- ParameterKey
- f_pitch_E05

- Description
Electron pitch-angle distributions (6 degrees/bin), energy channel 05

- Caveats
- For the E05 distribution, Ve[05] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Image

- AxisLabel
- f_pitch_E05

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 30

- Description
For the E05 distribution, f_pitch_E05[xx] gives the contents (for fluxes with directions ranging in six-degree increments from nearly parallel to nearly anti-parallel with B) of pitch-angle-bin xx=: 00, 01, ..., 29.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- ParticleQuantity
- PhaseSpaceDensity

- Parameter #9
- Name
- Electron PADs, Energy 06

- ParameterKey
- f_pitch_E06

- Description
Electron pitch-angle distributions (6 degrees/bin), energy channel 06

- Caveats
- For the E06 distribution, Ve[06] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Image

- AxisLabel
- f_pitch_E06

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 30

- Description
For the E06 distribution, f_pitch_E06[xx] gives the contents (for fluxes with directions ranging in six-degree increments from nearly parallel to nearly anti-parallel with B) of pitch-angle-bin xx=: 00, 01, ..., 29.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- ParticleQuantity
- PhaseSpaceDensity

- Parameter #10
- Name
- Electron PADs, Energy 07

- ParameterKey
- f_pitch_E07

- Description
Electron pitch-angle distributions (6 degrees/bin), energy channel 07

- Caveats
- For the E07 distribution, Ve[07] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Image

- AxisLabel
- f_pitch_E07

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 30

- Description
For the E07 distribution, f_pitch_E07[xx] gives the contents (for fluxes with directions ranging in six-degree increments from nearly parallel to nearly anti-parallel with B) of pitch-angle-bin xx=: 00, 01, ..., 29.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- ParticleQuantity
- PhaseSpaceDensity

- Parameter #11
- Name
- Electron PADs, Energy 08

- ParameterKey
- f_pitch_E08

- Description
Electron pitch-angle distributions (6 degrees/bin), energy channel 08

- Caveats
- For the E08 distribution, Ve[08] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Image

- AxisLabel
- f_pitch_E08

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 30

- Description
For the E08 distribution, f_pitch_E08[xx] gives the contents (for fluxes with directions ranging in six-degree increments from nearly parallel to nearly anti-parallel with B) of pitch-angle-bin xx=: 00, 01, ..., 29.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- ParticleQuantity
- PhaseSpaceDensity

- Parameter #12
- Name
- Electron PADs, Energy 09

- ParameterKey
- f_pitch_E09

- Description
Electron pitch-angle distributions (6 degrees/bin), energy channel 09

- Caveats
- For the E09 distribution, Ve[09] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Image

- AxisLabel
- f_pitch_E09

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 30

- Description
For the E09 distribution, f_pitch_E09[xx] gives the contents (for fluxes with directions ranging in six-degree increments from nearly parallel to nearly anti-parallel with B) of pitch-angle-bin xx=: 00, 01, ..., 29.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- ParticleQuantity
- PhaseSpaceDensity

- Parameter #13
- Name
- Electron PADs, Energy 10

- ParameterKey
- f_pitch_E10

- Description
Electron pitch-angle distributions (6 degrees/bin), energy channel 10

- Caveats
- For the E10 distribution, Ve[10] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Image

- AxisLabel
- f_pitch_E10

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 30

- Description
For the E10 distribution, f_pitch_E10[xx] gives the contents (for fluxes with directions ranging in six-degree increments from nearly parallel to nearly anti-parallel with B) of pitch-angle-bin xx=: 00, 01, ..., 29.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- ParticleQuantity
- PhaseSpaceDensity

- Parameter #14
- Name
- Electron PADs, Energy 11

- ParameterKey
- f_pitch_E11

- Description
Electron pitch-angle distributions (6 degrees/bin), energy channel 11

- Caveats
- For the E11 distribution, Ve[11] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Image

- AxisLabel
- f_pitch_E11

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 30

- Description
For the E11 distribution, f_pitch_E11[xx] gives the contents (for fluxes with directions ranging in six-degree increments from nearly parallel to nearly anti-parallel with B) of pitch-angle-bin xx=: 00, 01, ..., 29.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- ParticleQuantity
- PhaseSpaceDensity

- Parameter #15
- Name
- Electron PADs, Energy 12

- ParameterKey
- f_pitch_E12

- Description
Electron pitch-angle distributions (6 degrees/bin), energy channel 12

- Caveats
- For the E12 distribution, Ve[12] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Image

- AxisLabel
- f_pitch_E12

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 30

- Description
For the E12 distribution, f_pitch_E12[xx] gives the contents (for fluxes with directions ranging in six-degree increments from nearly parallel to nearly anti-parallel with B) of pitch-angle-bin xx=: 00, 01, ..., 29.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- ParticleQuantity
- PhaseSpaceDensity

- Parameter #16
- Name
- Electron PADs, Energy 13

- ParameterKey
- f_pitch_E13

- Description
Electron pitch-angle distributions (6 degrees/bin), energy channel 13

- Caveats
- For the E13 distribution, Ve[13] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Image

- AxisLabel
- f_pitch_E13

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 30

- Description
For the E13 distribution, f_pitch_E13[xx] gives the contents (for fluxes with directions ranging in six-degree increments from nearly parallel to nearly anti-parallel with B) of pitch-angle-bin xx=: 00, 01, ..., 29.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- ParticleQuantity
- PhaseSpaceDensity

- Parameter #17
- Name
- Electron PADs, Energy 14

- ParameterKey
- f_pitch_E14

- Description
Electron pitch-angle distributions (6 degrees/bin), energy channel 14

- Caveats
- For the E14 distribution, Ve[14] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Image

- AxisLabel
- f_pitch_E14

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 30

- Description
For the E14 distribution, f_pitch_E14[xx] gives the contents (for fluxes with directions ranging in six-degree increments from nearly parallel to nearly anti-parallel with B) of pitch-angle-bin xx=: 00, 01, ..., 29.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- ParticleQuantity
- PhaseSpaceDensity

- Parameter #18
- Name
- Electron PADs, Energy 15

- ParameterKey
- f_pitch_E15

- Description
Electron pitch-angle distributions (6 degrees/bin), energy channel 15

- Caveats
- For the E15 distribution, Ve[15] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Image

- AxisLabel
- f_pitch_E15

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 30

- Description
For the E15 distribution, f_pitch_E15[xx] gives the contents (for fluxes with directions ranging in six-degree increments from nearly parallel to nearly anti-parallel with B) of pitch-angle-bin xx=: 00, 01, ..., 29.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- ParticleQuantity
- PhaseSpaceDensity

- Parameter #19
- Name
- Electron Energy-Spectrum

- ParameterKey
- f_pitch_SPA

- Description
Electron spin-averaged flux, binned by energy

- Caveats
- For each spin-averaged flux value, f_pitch_SPA[i], Ve[i] gives the corresponding electron speed (cm/s).
- Units
- #/{cc*(cm/s)^3}
- RenderingHints
- DisplayType
- Spectrogram

- AxisLabel
- f_pitch_SPA

- ValueFormat
- E12.5

- ScaleType
- LogScale

- Structure
- Size
- 16

- Description
f_pitch_SPA[i] gives the spin-averaged contents of energy-bin i=: 0, 1, ..., 15.

- ValidMin
- 1.0E-33
- ValidMax
- 1.0E-23
- FillValue
- -1.0E31
- Particle
- ParticleType
- Electron

- Qualifier
- Vector

- Qualifier
- Average

- ParticleQuantity
- PhaseSpaceDensity