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STEREO-A PLasma and Supra-Thermal Ion Composition (PLASTIC) He+ Pickup Ion (PUI) Solar Wind Frame Velocity Count Distributions and Proton Plasma Densities and Velocities, Level 3 (L3), 5 min Data

ResourceID
spase://NASA/NumericalData/STEREO-A/PLASTIC/HeliumPlus/VelocityCountDistributions/PT5M

Description

This data set presents STEREO-A PLASTIC PickUp Ion, PUI, He⁺ velocity distributions defined at a 5 min time resolution in the solar wind, SW, frame of reference. The velocity distributions are defined as a function of magnitude of the He⁺ PUI velocity vector divided by the solar wind speed in 69 velocity bins. This data set is not efficiency corrected, which has been shown to cause an increased relative count rate in the suprathermal tail region. Observations using this data set should be limited to the core PUI distribution.

This data set is released in conjunction with the publication of Bower et al. (2019) to satisfy the American Geophysical Union, AGU, fair use data policy. Funding for this data release was provided by the SR&T Grant NNX16AF79G and the Heliophysics Grand Challenge 80NSSC17K000 at the University of New Hampshire and under DLR-Grant 50 OC 1103 at the Universität Kiel. CJF funded by NASA STEREO Quadrature grant. If these data are used in presentation or publications, we strongly suggest contacting J.S. Bower at jonathan.bower@unh.edu to ensure you are working with the latest release. For reporting purposes, we request bibliography information for any publication, etc., using these data. Please send information on the use of this data to the PLASTIC PI A.B. Galvin at toni.galvin@unh.edu. If you have questions regarding the data availability, please contact the PLASTIC Data System Manager Lorna Ellis at lorna.ellis@unh.edu.

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Details

Version:2.3.2

NumericalData

ResourceID
spase://NASA/NumericalData/STEREO-A/PLASTIC/HeliumPlus/VelocityCountDistributions/PT5M
ResourceHeader
ResourceName
STEREO-A PLasma and Supra-Thermal Ion Composition (PLASTIC) He+ Pickup Ion (PUI) Solar Wind Frame Velocity Count Distributions and Proton Plasma Densities and Velocities, Level 3 (L3), 5 min Data
ReleaseDate
2021-04-27 15:38:11Z
Description

This data set presents STEREO-A PLASTIC PickUp Ion, PUI, He⁺ velocity distributions defined at a 5 min time resolution in the solar wind, SW, frame of reference. The velocity distributions are defined as a function of magnitude of the He⁺ PUI velocity vector divided by the solar wind speed in 69 velocity bins. This data set is not efficiency corrected, which has been shown to cause an increased relative count rate in the suprathermal tail region. Observations using this data set should be limited to the core PUI distribution.

This data set is released in conjunction with the publication of Bower et al. (2019) to satisfy the American Geophysical Union, AGU, fair use data policy. Funding for this data release was provided by the SR&T Grant NNX16AF79G and the Heliophysics Grand Challenge 80NSSC17K000 at the University of New Hampshire and under DLR-Grant 50 OC 1103 at the Universität Kiel. CJF funded by NASA STEREO Quadrature grant. If these data are used in presentation or publications, we strongly suggest contacting J.S. Bower at jonathan.bower@unh.edu to ensure you are working with the latest release. For reporting purposes, we request bibliography information for any publication, etc., using these data. Please send information on the use of this data to the PLASTIC PI A.B. Galvin at toni.galvin@unh.edu. If you have questions regarding the data availability, please contact the PLASTIC Data System Manager Lorna Ellis at lorna.ellis@unh.edu.

Acknowledgement
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.
Contacts
RolePerson
1.PrincipalInvestigatorspase://SMWG/Person/Antoinette.B.Galvin
2.MetadataContactspase://SMWG/Person/Robert.M.Candey
3.MetadataContactspase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
The STEREO PLASTIC web site, hosted by UNH
URL
Description

The STEREO Plasma and Suprathermal Ion Composition, PLASTIC, web site with release notes and other information available, hosted by the University of New Hampshire, UNH

InformationURL
Name
ReadMe for Singly-charged Helium, He⁺, Solar Wind Frame Velocity Count Distributions from the STEREO PLASTIC Instrument, hosted by UNH
URL
Description

Description of STEREO PLASTIC PickUp Ion, PUI, Singly-charged Helium, He⁺, Solar Wind Frame Velocity Count Distributions, hosted by the University of New Hampshire, UNH

InformationURL
Name
Bower et al. (2019) Solar Wind PickUp Ion, PUI, Velocity Distributions, Journal of Geophysics, Space Physics Publication
URL
Description

Bower, J.S., Moebius, E., Berger, L., Farrugia, C., Keilbach, D., Lee, M. A., Quinn, P.R., Schwadron, N., and A. Taut, Effect of rapid changes of solar wind conditions on the pickup ion velocity distribution, J. Geophys. Res. Space Phys., 124, 6418–6437, 2019, DOI: 10.1029/2019JA026781

PriorIDs
spase://VSPO/NumericalData/STEREO-A/PLASTIC/HeliumPlus/VelocityCountDistributions/PT5M
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
Description

Access to Data in CDF Format via ftp from SPDF

AccessURL
Name
HTTPS from SPDF
URL
Description

Access to Data in CDF Format via http from SPDF

AccessURL
Name
CDAWeb
URL
ProductKey
STA_L3_PLA_HEPLUS_SW_VELCTDIST_5MIN
Description

Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb

Format
CDF
Encoding
None
Acknowledgement
Please acknowledge the Principal Investigator A.B. Galvin. Please acknowledge the Data Providers and CDAWeb when using these Data.
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb HAPI Server
URL
Style
HAPI
ProductKey
STA_L3_PLA_HEPLUS_SW_VELCTDIST_5MIN
Description

Web Service to this product using the HAPI interface.

Format
CSV
Acknowledgement
Please acknowledge the Principal Investigator A.B. Galvin. Please acknowledge the Data Providers and CDAWeb when using these Data.
ProcessingLevel
Calibrated
InstrumentIDs
MeasurementType
EnergeticParticles
MeasurementType
Ephemeris
MeasurementType
MagneticField
MeasurementType
ThermalPlasma
TemporalDescription
TimeSpan
StartDate
2007-01-01 00:00:00.000
StopDate
2013-01-01 23:59:59.999
Cadence
PT5M
ObservedRegion
Heliosphere.Remote1AU
Parameter #1
Name
Epoch Time Tags, Beginning of Interval
ParameterKey
epoch
Description

Epoch Time Tags, Beginning of Interval, Time elapsed since 0 AD

Caveats
This Parameter exhibits an increasing Monotonic Progression
Cadence
PT5M
Units
ms
UnitsConversion
1.0e-3>s
RenderingHints
AxisLabel
Epoch
ValueFormat
E14.8
ScaleType
LinearScale
ValidMin
01-Jan-1990 00:00:00.000
ValidMax
31-Dec-2030 00:00:00.000
FillValue
31-Dec-9999 23:59:59.999
Support
SupportQuantity
Temporal
Parameter #2
Name
Time PB5
Set
Time series defined by using: EPOCH
ParameterKey
time_pb5
Description

Time PB5, Time of Observation, Year, Day, and Milliseconds of Day

Caveats
This Parameter exhibits an increasing Monotonic Progression
Cadence
PT5M
RenderingHints
ScaleType
LinearScale
Structure
Size
3
Element
Name
Year
Index
1
Units
a
ValidMin
1997
ValidMax
2030
Element
Name
Day of Year (Jan 1 = Day 1)
Index
2
Units
d
ValidMin
237
ValidMax
365
Element
Name
Elapsed milliseconds of day
Index
3
Units
ms
ValidMin
0
ValidMax
0
FillValue
-2147483648
Support
SupportQuantity
Temporal
Parameter #3
Name
Data Processing Date
ParameterKey
processing_date
Description

Data Processing Date

Caveats
Date and time when CDF was created
Cadence
PT5M
RenderingHints
AxisLabel
Processing_date
ValueFormat
A32
ValidMin
01-Jan-2007 00:00:00.000
ValidMax
31-Dec-2030 00:00:00.000
Support
SupportQuantity
Temporal
Parameter #4
Name
Data Input File
ParameterKey
input_file
Description

Data Input File

Cadence
PT5M
RenderingHints
AxisLabel
Input_file
ValueFormat
A34
Support
SupportQuantity
Other
Parameter #5
Name
PickUp Ion Bin Speed
ParameterKey
PUI_bin_w
Description

Normalized Speed for PickUp Ion, PUI, Velocity

Caveats
Speeds are expressed in the solar wind frame and normalized to the solar wind speed This Parameter exhibits an increasing Monotonic Progression.
Cadence
PT5M
RenderingHints
ValueFormat
E14.8
ScaleType
LinearScale
Structure
Size
69
ValidMin
0.5
ValidMax
1.5
Particle
ParticleType
Ion
Qualifier
Vector
ParticleQuantity
Velocity
Parameter #6
Name
Proton Bulk Speed, 1-D Fit
Set
Time series defined by using: EPOCH
ParameterKey
proton_bulk_speed
Description

Proton Bulk Speed, 1-D Maxwellian Fit

Cadence
PT5M
Units
km/s
UnitsConversion
1.0e3>m/s
RenderingHints
DisplayType
TimeSeries
AxisLabel
Proton Speed
ValueFormat
E11.3
ValidMin
200.0
ValidMax
3000.0
FillValue
-1.0e+31
Particle
ParticleType
Proton
Qualifier
Magnitude
Qualifier
Scalar
ParticleQuantity
Velocity
AtomicNumber
1
Parameter #7
Name
Proton Number Density, 1-D Fit
Set
Time series defined by using: EPOCH
ParameterKey
proton_number_density
Description

Proton Number Density, 1-D Maxwellian Fit

Cadence
PT5M
Units
cm^-3
UnitsConversion
1.0e6>m^-3
RenderingHints
DisplayType
TimeSeries
AxisLabel
Proton No. Density
ValueFormat
E9.2
ValidMin
0.0
ValidMax
500.0
FillValue
-1.0e+31
Particle
ParticleType
Proton
Qualifier
Magnitude
Qualifier
Scalar
ParticleQuantity
NumberDensity
AtomicNumber
1
Parameter #8
Name
Spacecraft Position, Longitude, SE Spherical Coordinates
Set
Time series defined by using: EPOCH
ParameterKey
spacecraft_lon
Description

Spacecraft Position, Longitude, Solar Ecliptic, SE, Spherical Coordinates

Caveats
Defined by the Sun-Earth line at the spring equinox
Cadence
PT5M
Units
°
UnitsConversion
0.0174532925>rad
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
SE
RenderingHints
DisplayType
TimeSeries
AxisLabel
Ecliptic Lon.
ValueFormat
E9.2
ScaleType
LinearScale
ValidMin
0.0
ValidMax
360.0
FillValue
-1.0e+31
Support
Qualifier
DirectionAngle.AzimuthAngle
Qualifier
Scalar
SupportQuantity
Positional
Parameter #9
Name
Interplanetary Magnetic Field, B, Magnitude
Set
Time series defined by using: EPOCH
ParameterKey
IMF
Description

Interplanetary Magnetic Field, IMF B, Vector Magnitude

Cadence
PT5M
Units
nT
UnitsConversion
1.0e-9>T
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
SE
RenderingHints
DisplayType
TimeSeries
AxisLabel
IMF
ValueFormat
E9.2
ValidMin
0.0284
ValidMax
66.2134
FillValue
-1.0e+31
Field
Qualifier
Magnitude
Qualifier
Scalar
FieldQuantity
Magnetic
Parameter #10
Name
Interplanetary Magnetic Field, B, Elevation Angle, SE Coordinates
Set
Time series defined by using: EPOCH
ParameterKey
theta
Description

Interplanetary Magnetic Field, B, Elevation Angle, θ, Solar Ecliptic, SE, Spherical Coordinates

Cadence
PT5M
Units
°
UnitsConversion
0.0174532925>rad
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
SE
RenderingHints
DisplayType
TimeSeries
AxisLabel
theta
ValueFormat
E9.2
ValidMin
0.0
ValidMax
180.0
FillValue
-1.0e+31
Field
Qualifier
DirectionAngle.ElevationAngle
Qualifier
Scalar
FieldQuantity
Magnetic
Parameter #11
Name
Interplanetary Magnetic Field, B, Azimuth Angle, SE Coordinates
Set
Time series defined by using: EPOCH
ParameterKey
phi
Description

Interplanetary Magnetic Field, B, Azimuth Angle, ϕ, Solar Ecliptic, SE, Spherical Coordinates

Cadence
PT5M
Units
°
UnitsConversion
0.0174532925>rad
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
SE
RenderingHints
DisplayType
TimeSeries
AxisLabel
phi
ValueFormat
E9.2
ValidMin
-180.0
ValidMax
180.0
FillValue
-1.0e+31
Field
Qualifier
DirectionAngle.AzimuthAngle
Qualifier
Scalar
FieldQuantity
Magnetic
Parameter #12
Name
Interplanetary Magnetic Field, B, Cone Angle, SE Coordinates
Set
Time series defined by using: EPOCH
ParameterKey
cone_ang
Description

Interplanetary Magnetic Field, B, Cone Angle, θ, Solar Ecliptic, SE, Spherical Coordinates

Caveats
Defined by the radial sun spacecraft line
Cadence
PT5M
Units
°
UnitsConversion
0.0174532925>rad
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
SSE
RenderingHints
DisplayType
TimeSeries
AxisLabel
cone_ang
ValueFormat
E9.2
ValidMin
0.0
ValidMax
180.0
FillValue
-1.0e+31
Field
Qualifier
DirectionAngle.PolarAngle
Qualifier
Scalar
FieldQuantity
Magnetic
Parameter #13
Name
Singly-charged Helium PickUp Ion Velocity Count Density
Set
Time series defined by using: EPOCH
ParameterKey
PUI_vel_ct_den
Description

Singly-charged Helium, He», PickUp Ion, PUI, Velocity Count Density

Cadence
PT5M
RenderingHints
DisplayType
TimeSeries
ValueFormat
E14.8
Structure
Size
69
Element
Name
He+_avg_W_0.5072464
Index
1
Element
Name
He+_avg_W_0.5217391
Index
2
Element
Name
He+_avg_W_0.5362319
Index
3
Element
Name
He+_avg_W_0.5507246
Index
4
Element
Name
He+_avg_W_0.5652174
Index
5
Element
Name
He+_avg_W_0.5797101
Index
6
Element
Name
He+_avg_W_0.5942029
Index
7
Element
Name
He+_avg_W_0.6086957
Index
8
Element
Name
He+_avg_W_0.6231884
Index
9
Element
Name
He+_avg_W_0.6376812
Index
10
Element
Name
He+_avg_W_0.6521739
Index
11
Element
Name
He+_avg_W_0.6666667
Index
12
Element
Name
He+_avg_W_0.6811594
Index
13
Element
Name
He+_avg_W_0.6956522
Index
14
Element
Name
He+_avg_W_0.7101449
Index
15
Element
Name
He+_avg_W_0.7246377
Index
16
Element
Name
He+_avg_W_0.7391304
Index
17
Element
Name
He+_avg_W_0.7536232
Index
18
Element
Name
He+_avg_W_0.7681159
Index
19
Element
Name
He+_avg_W_0.7826087
Index
20
Element
Name
He+_avg_W_0.7971014
Index
21
Element
Name
He+_avg_W_0.8115942
Index
22
Element
Name
He+_avg_W_0.826087
Index
23
Element
Name
He+_avg_W_0.8405797
Index
24
Element
Name
He+_avg_W_0.8550725
Index
25
Element
Name
He+_avg_W_0.8695652
Index
26
Element
Name
He+_avg_W_0.884058
Index
27
Element
Name
He+_avg_W_0.8985507
Index
28
Element
Name
He+_avg_W_0.9130435
Index
29
Element
Name
He+_avg_W_0.9275362
Index
30
Element
Name
He+_avg_W_0.942029
Index
31
Element
Name
He+_avg_W_0.9565217
Index
32
Element
Name
He+_avg_W_0.9710145
Index
33
Element
Name
He+_avg_W_0.9855072
Index
34
Element
Name
He+_avg_W_1
Index
35
Element
Name
He+_avg_W_1.0144928
Index
36
Element
Name
He+_avg_W_1.0289855
Index
37
Element
Name
He+_avg_W_1.0434783
Index
38
Element
Name
He+_avg_W_1.057971
Index
39
Element
Name
He+_avg_W_1.0724638
Index
40
Element
Name
He+_avg_W_1.0869565
Index
41
Element
Name
He+_avg_W_1.1014493
Index
42
Element
Name
He+_avg_W_1.115942
Index
43
Element
Name
He+_avg_W_1.1304348
Index
44
Element
Name
He+_avg_W_1.1449275
Index
45
Element
Name
He+_avg_W_1.1594203
Index
46
Element
Name
He+_avg_W_1.173913
Index
47
Element
Name
He+_avg_W_1.1884058
Index
48
Element
Name
He+_avg_W_1.2028986
Index
49
Element
Name
He+_avg_W_1.2173913
Index
50
Element
Name
He+_avg_W_1.2318841
Index
51
Element
Name
He+_avg_W_1.2463768
Index
52
Element
Name
He+_avg_W_1.2608696
Index
53
Element
Name
He+_avg_W_1.2753623
Index
54
Element
Name
He+_avg_W_1.2898551
Index
55
Element
Name
He+_avg_W_1.3043478
Index
56
Element
Name
He+_avg_W_1.3188406
Index
57
Element
Name
He+_avg_W_1.3333333
Index
58
Element
Name
He+_avg_W_1.3478261
Index
59
Element
Name
He+_avg_W_1.3623188
Index
60
Element
Name
He+_avg_W_1.3768116
Index
61
Element
Name
He+_avg_W_1.3913043
Index
62
Element
Name
He+_avg_W_1.4057971
Index
63
Element
Name
He+_avg_W_1.4202899
Index
64
Element
Name
He+_avg_W_1.4347826
Index
65
Element
Name
He+_avg_W_1.4492754
Index
66
Element
Name
He+_avg_W_1.4637681
Index
67
Element
Name
He+_avg_W_1.4782609
Index
68
Element
Name
He+_avg_W_1.4927536
Index
69
ValidMin
0.0
ValidMax
198.0
FillValue
-1.0e+31
Particle
ParticleType
Ion
Qualifier
Vector
ParticleQuantity
Velocity
AtomicNumber
2