ResourceName
STEREO-A In-Situ Measurements of Particles and CME Transients (IMPACT) Solar Wind Electron Analyzer (SWEA) 3-Dimensional Electron Distributions, Burst Mode, Level 1 (L1), 2 s Data
DOI
https://doi.org/10.48322/h0g4-j046
ReleaseDate
2023-07-31 12:34:56.789
RevisionHistory
RevisionEvent
ReleaseDate
2021-04-27 15:38:11
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2023-07-31 12:34:56.789
Note
Added DOI and PublicationInfo minted by LFB, metadata versioned up to SPASE 2.6.0, reviewed by LFB 20230727
Description
The file contains Level 1 3D electron distributions in burst mode from the In-situ Measurements of Particles and CME Transients, IMPACT, SWEA instrument on the STEREO Ahead spacecraft. For important usage caveats see https://cdaweb.gsfc.nasa.gov/stereo_swea_caveats.html.
Acknowledgement
Please acknowledge the Principal Investigator J.G. Luhmann for use of the Data
PublicationInfo
Authors
Luhmann, Janet, G.; Schroeder, Peter
PublicationDate
2023-01-01 00:00:00
PublishedBy
NASA Space Physics Data Facility
Contacts
InformationURL
Name
STEREO IMPACT Instrument web site, UCB
URL
Description
STEREO In-Situ Measurements of Particles and CME Transients, IMPACT, instrument experiment and data description web site, hosted by University of California, Berkeley
Language
en
InformationURL
Name
STEREO IMPACT SWEA Data Caveats web page, GSFC
URL
Description
STEREO In-Situ Measurements of Particles and CME Transients, IMPACT, Solar Wind Electron Analyzer, SWEA, Data Caveats web page, hosted by NASA GSFC
Language
en
InformationURL
Name
NSSDC Master Catalog, STEREO A, IMPACT instrument
URL
Description
General information concerning the STEREO A, In-Situ Measurements of Particles and CME Transients, IMPACT, instrument
Language
en
PriorIDs
spase://VSPO/NumericalData/P_STEREO-A_HDR_IMPACT_SWEA_2sec_3DBurstMode_Distributions
spase://VSPO/NumericalData/STEREO-A/IMPACT/SWEA/PT2S
spase://VSPO/NumericalData/STEREO-A/IMPACT/SWEA/L1/PT2S
Since commissioning, the SWEA instruments on both STEREO spacecraft have registered difficult to characterize degradations in the solar wind core electron energies, probably due to charging effects. The nature of the degradations are such that the data are not reliable for electron measurements below 45 eV. However, halo and higher energy electrons are unaffected. Versions 4 and higher of the SWEA 3D distribution data products have these lower energies removed. Similarly, Versions 4 and higher of the SWEA pitch angle distribution products also remove these energies. Use of the SWEA pitch angle distributions for most purposes, for example, higher energy heat flux pitch angle distribbutions, PADs, should be largely unaffected. For more information regarding these issues, please contact Peter Schroeder, peters@ssl.berkeley.edu. If you have downloaded Version 3 or earlier Files, those files contain unreliable data below 45 eV and should be replaced with Version 4 files. Note that if the interpretation of these data become a significant focus in your work, you should obtain explicit prior permission from the PI of the experiment before publication.
Name
Electron 3D Energy-Angle Count Distribution
Set
Time series defined by using: EPOCH
ParameterKey
Distribution
Description
Electron Three-Dimensional Count Distribution, Energy versus Angle display, do not use energies below 45 eV. * Column 1 Labels from ENERGY: ["Dist @ 1790 eV","Dist @ 1260 eV","Dist @ 883 eV","Dist @ 621 eV","Dist @ 437 eV","Dist @ 307 eV","Dist @ 216 eV","Dist @ 152 eV","Dist @ 107 eV","Dist @ 75.0 eV","Dist @ 52.7 eV","Dist @ 37.1 eV","Dist @ 26.0 eV","Dist @ 18.3 eV","Dist @ 12.9 eV","Dist @ 9.05 eV"]. * Column 2 Labels from ANGLE_BINS: ["Dist @ Angle 1","Dist @ Angle 2","Dist @ Angle 3","Dist @ Angle 4","Dist @ Angle 5","Dist @ Angle 6","Dist @ Angle 7","Dist @ Angle 8","Dist @ Angle 9","Dist @ Angle 10","Dist @ Angle 11","Dist @ Angle 12","Dist @ Angle 13","Dist @ Angle 14","Dist @ Angle 15","Dist @ Angle 16","Dist @ Angle 17","Dist @ Angle 18","Dist @ Angle 19","Dist @ Angle 20","Dist @ Angle 21","Dist @ Angle 22","Dist @ Angle 23","Dist @ Angle 24","Dist @ Angle 25","Dist @ Angle 26","Dist @ Angle 27","Dist @ Angle 28","Dist @ Angle 29","Dist @ Angle 30","Dist @ Angle 31","Dist @ Angle 32","Dist @ Angle 33","Dist @ Angle 34","Dist @ Angle 35","Dist @ Angle 36","Dist @ Angle 37","Dist @ Angle 38","Dist @ Angle 39","Dist @ Angle 40","Dist @ Angle 41","Dist @ Angle 42","Dist @ Angle 43","Dist @ Angle 44","Dist @ Angle 45","Dist @ Angle 46","Dist @ Angle 47","Dist @ Angle 48","Dist @ Angle 49","Dist @ Angle 50","Dist @ Angle 51","Dist @ Angle 52","Dist @ Angle 53","Dist @ Angle 54","Dist @ Angle 55","Dist @ Angle 56","Dist @ Angle 57","Dist @ Angle 58","Dist @ Angle 59","Dist @ Angle 60","Dist @ Angle 61","Dist @ Angle 62","Dist @ Angle 63","Dist @ Angle 64","Dist @ Angle 65","Dist @ Angle 66","Dist @ Angle 67","Dist @ Angle 68","Dist @ Angle 69","Dist @ Angle 70","Dist @ Angle 71","Dist @ Angle 72","Dist @ Angle 73","Dist @ Angle 74","Dist @ Angle 75","Dist @ Angle 76","Dist @ Angle 77","Dist @ Angle 78","Dist @ Angle 79","Dist @ Angle 80"].
Cadence
PT2S
RenderingHints
DisplayType
Spectrogram
ValueFormat
E13.6
Structure
FillValue
-1.0e+31
Particle
ParticleType
Electron
Qualifier
Differential
Qualifier
Array
ParticleQuantity
NumberFlux
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