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Wind Solar Wind Experiment (SWE) Thermal Plamsa Moments, Key Parameter (K0), 99 s Data

ResourceID
spase://NASA/NumericalData/Wind/SWE/IonMoments/KeyParameter/PT99S

Description

Wind SWE Key Parameter data: proton density, thermal speed, flow velocity vectors, and spacecraft position vectors. Various versions differ slightly from each other. The version at MIT has flow velocity vectors experessed bby using Geocentric Solar Ecliptic, GSE, Cartesian and spherical representations and GSE Cartesian position vectors. The version available via nssdcftp and FTPBrowser has temperature instead of thermal speed and has no flow direction angles. The CDAWeb version has flow velocity and spacecraft position vectors in both GSE and Geocentric Solar Magnetospheric, GSM, coordinates, flow dynamic pressure, NmV^2, and velocity and density quality flags. The data were progressively despiked in passing from CDAWeb to MIT to nssdcftp/FTPBrowser.

Use of the Quality Variables:

Quality flags are set in the analysis program that generates the KP data. Previous descriptions of their meaning were out of date.

Good data is indicated by a quality flag equal to 0.

The quality flags for each parameter are given as integers 4 bytes long, integer*4.

The individual 'bits' for each quality value are set or cleared in the analysis code by adding or subtracting a power of 2 as follows. To set the first bit, add 1, the second bit, add 2, the third bit, add 4, the fourth bit, add 8, and so on. See the table below.

+------------------------------------------------------------------------------------------------------------------------------+
| Bit | Set Value | MEANING |
|------------------------------------------------------------------------------------------------------------------------------|
| 1 | 1 | Three point parabolic fits to proton peaks were not attempted. |
| 2 | 2 | Non-linear least squares fit was not attempted. |
| 3 | 4 | Three point parabolic fits to proton peaks failed. |
| 4 | 8 | Non-linear least squares fit failed. |
| 5 | 16 | Alpha parameters not valid since the non-linear least squares fit was done for protons only. |
| | | Not enough good energy channels to do simultaneous alpha fit. This value applies to iqual_core(5) only. |
| 6 | 32 | Analysis code unable to get good value for spin period. |
| 7 | 64 | SWE instrument in mode 1, calibration state mode. Key parameters are produced in mode 1, science mode. |
| 8 | 128 | Three point fits done for cup 1 only. Split collector ratio of currents used to get the north/south angle. |
| | | Either cup 2 turned off, or cup 2 densities were low indicating noise associated with vibration. |
| 9 | 256 | Fewer than ten fc_blocks in spectrum. Analysis skipped. |
| 10 | 512 | Alpha particle non-linear fit produced values of density and thermal speed that do not seem reasonable. |
| 11 | 1024 | Three point parabolic fits to proton peaks done for cup 2 only. Probably Cup 1 is turned off. |
| | | The ratio of currents on split collectors used to get north/south angle. |
| 12 | 2048 | Single width windows. Delta E over E 6.5% instead of the default 13%. |
| 13 | 4096 | Tracking mode operation. |
| 14 | 8192 | Limited tracking mode scan, not a full scan. |
+------------------------------------------------------------------------------------------------------------------------------+

Particular flag settings:

+-------------------------------------------------------------------------------------------+
| Flag Value | Meaning |
|-------------------------------------------------------------------------------------------|
| 4098 | Tracking mode operation is full scan (4096) and No non-linear fits (2) |
| 14338 | Tracking mode operation is full scan (4096) and Limited tracking mode (8192) |
+-------------------------------------------------------------------------------------------+

Comments:

  • Note that in bit 4 of the quality flag the non-linear fit may be reported as good for protons and, at the same time, not good for alphas.
  • Non-linear fits are not done for Key Parameters, KPs, but those parameter values are excellent and should be used to do science.
  • Non-linear fits are available are available in this data product, but they have problems which suggests strongly that the KP parameters should be used, see the paper by Kasper et al., Physics-based tests to identify the accuracy of solar wind ion measurements: A case study with the Wind Faraday Cups, J. Geophys. Res., 111, A03105, DOI: 101029/2005JA011442.
  • Note that all quality flag values that are even numbers are for data values when non-linear fits were not attempted.

For the complete guide to the quality flag values see https://cdaweb.gsfc.nasa.gov/wind_swe_quality.html.

Note that this SPASE Numerical Description only describes the MESSENGER Magnetometer data stored in Common Data Files. Other links to Wind SWE data in non CDF format are listed in the following table:

+--------------------------------------------------------------------------------------------------------------------------------------------+
| SPASE Repository Resource ID | Data Source | Data Access URL |
|--------------------------------------------------------------------------------------------------------------------------------------------|
| SMWG/Repository/MIT_CSR | ASCII via ftp from MIT | ftp://space.mit.edu/pub/plasma/wind/kp_files/ |
| SMWG/Repository/NASA/GSFC/SPDF | ASCII via ftps from SPDF | ftps://spdf.gsfc.nasa.gov/pub/data/wind/swe/ascii/swe_kp_unspike/ |
| SMWG/Repository/NASA/GSFC/SPDF | ASCII via https from SPDF | https://spdf.gsfc.nasa.gov/pub/data/wind/swe/ascii/swe_kp_unspike/ |
| SMWG/Repository/NASA/GSFC/SPDF | Subset, plot and list via FTPBrowser | https://omniweb.sci.gsfc.nasa.gov/ftpbrowser/wind_swe_kp.html |
+--------------------------------------------------------------------------------------------------------------------------------------------+

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Details

Version:2.3.1

NumericalData

ResourceID
spase://NASA/NumericalData/Wind/SWE/IonMoments/KeyParameter/PT99S
ResourceHeader
ResourceName
Wind Solar Wind Experiment (SWE) Thermal Plamsa Moments, Key Parameter (K0), 99 s Data
ReleaseDate
2020-07-07 21:16:06Z
Description

Wind SWE Key Parameter data: proton density, thermal speed, flow velocity vectors, and spacecraft position vectors. Various versions differ slightly from each other. The version at MIT has flow velocity vectors experessed bby using Geocentric Solar Ecliptic, GSE, Cartesian and spherical representations and GSE Cartesian position vectors. The version available via nssdcftp and FTPBrowser has temperature instead of thermal speed and has no flow direction angles. The CDAWeb version has flow velocity and spacecraft position vectors in both GSE and Geocentric Solar Magnetospheric, GSM, coordinates, flow dynamic pressure, NmV^2, and velocity and density quality flags. The data were progressively despiked in passing from CDAWeb to MIT to nssdcftp/FTPBrowser.

Use of the Quality Variables:

Quality flags are set in the analysis program that generates the KP data. Previous descriptions of their meaning were out of date.

Good data is indicated by a quality flag equal to 0.

The quality flags for each parameter are given as integers 4 bytes long, integer*4.

The individual 'bits' for each quality value are set or cleared in the analysis code by adding or subtracting a power of 2 as follows. To set the first bit, add 1, the second bit, add 2, the third bit, add 4, the fourth bit, add 8, and so on. See the table below.

+------------------------------------------------------------------------------------------------------------------------------+
| Bit | Set Value | MEANING |
|------------------------------------------------------------------------------------------------------------------------------|
| 1 | 1 | Three point parabolic fits to proton peaks were not attempted. |
| 2 | 2 | Non-linear least squares fit was not attempted. |
| 3 | 4 | Three point parabolic fits to proton peaks failed. |
| 4 | 8 | Non-linear least squares fit failed. |
| 5 | 16 | Alpha parameters not valid since the non-linear least squares fit was done for protons only. |
| | | Not enough good energy channels to do simultaneous alpha fit. This value applies to iqual_core(5) only. |
| 6 | 32 | Analysis code unable to get good value for spin period. |
| 7 | 64 | SWE instrument in mode 1, calibration state mode. Key parameters are produced in mode 1, science mode. |
| 8 | 128 | Three point fits done for cup 1 only. Split collector ratio of currents used to get the north/south angle. |
| | | Either cup 2 turned off, or cup 2 densities were low indicating noise associated with vibration. |
| 9 | 256 | Fewer than ten fc_blocks in spectrum. Analysis skipped. |
| 10 | 512 | Alpha particle non-linear fit produced values of density and thermal speed that do not seem reasonable. |
| 11 | 1024 | Three point parabolic fits to proton peaks done for cup 2 only. Probably Cup 1 is turned off. |
| | | The ratio of currents on split collectors used to get north/south angle. |
| 12 | 2048 | Single width windows. Delta E over E 6.5% instead of the default 13%. |
| 13 | 4096 | Tracking mode operation. |
| 14 | 8192 | Limited tracking mode scan, not a full scan. |
+------------------------------------------------------------------------------------------------------------------------------+

Particular flag settings:

+-------------------------------------------------------------------------------------------+
| Flag Value | Meaning |
|-------------------------------------------------------------------------------------------|
| 4098 | Tracking mode operation is full scan (4096) and No non-linear fits (2) |
| 14338 | Tracking mode operation is full scan (4096) and Limited tracking mode (8192) |
+-------------------------------------------------------------------------------------------+

Comments:

  • Note that in bit 4 of the quality flag the non-linear fit may be reported as good for protons and, at the same time, not good for alphas.
  • Non-linear fits are not done for Key Parameters, KPs, but those parameter values are excellent and should be used to do science.
  • Non-linear fits are available are available in this data product, but they have problems which suggests strongly that the KP parameters should be used, see the paper by Kasper et al., Physics-based tests to identify the accuracy of solar wind ion measurements: A case study with the Wind Faraday Cups, J. Geophys. Res., 111, A03105, DOI: 101029/2005JA011442.
  • Note that all quality flag values that are even numbers are for data values when non-linear fits were not attempted.

For the complete guide to the quality flag values see https://cdaweb.gsfc.nasa.gov/wind_swe_quality.html.

Note that this SPASE Numerical Description only describes the MESSENGER Magnetometer data stored in Common Data Files. Other links to Wind SWE data in non CDF format are listed in the following table:

+--------------------------------------------------------------------------------------------------------------------------------------------+
| SPASE Repository Resource ID | Data Source | Data Access URL |
|--------------------------------------------------------------------------------------------------------------------------------------------|
| SMWG/Repository/MIT_CSR | ASCII via ftp from MIT | ftp://space.mit.edu/pub/plasma/wind/kp_files/ |
| SMWG/Repository/NASA/GSFC/SPDF | ASCII via ftps from SPDF | ftps://spdf.gsfc.nasa.gov/pub/data/wind/swe/ascii/swe_kp_unspike/ |
| SMWG/Repository/NASA/GSFC/SPDF | ASCII via https from SPDF | https://spdf.gsfc.nasa.gov/pub/data/wind/swe/ascii/swe_kp_unspike/ |
| SMWG/Repository/NASA/GSFC/SPDF | Subset, plot and list via FTPBrowser | https://omniweb.sci.gsfc.nasa.gov/ftpbrowser/wind_swe_kp.html |
+--------------------------------------------------------------------------------------------------------------------------------------------+

Acknowledgement
Please acknowledge the Principal Investigator K.W. Ogilvie for use of the Data
Contacts
RolePerson
1.PrincipalInvestigatorspase://SMWG/Person/Keith.W.Ogilvie
2.CoInvestigatorspase://SMWG/Person/Alan.J.Lazarus
3.DataProducerspase://SMWG/Person/Justin.C.Kasper
4.MetadataContactspase://SMWG/Person/Robert.M.Candey
5.MetadataContactspase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
Wind Spacecraft Overview and News web page, GSFC
URL
https://wind.nasa.gov
Description

Wind overview web page with news updates and information about new data product releases, hosted by NASA GSFC

Language
en
InformationURL
Name
Wind Spacecraft General Instrument web page, GSFC
URL
https://wind.nasa.gov/data.php
Description

Wind spacecraft general instrument web page with links to data, documentation, and home pages for all instruments, hosted by NASA GSFC

Language
en
InformationURL
Name
Wind spacecraft General web page for data sources from all instruments, GSFC
URL
https://wind.nasa.gov/data_sources.php
Description

Wind spacecraft general instrument web page with brief descriptions for data sources from all instruments, hosted by NASA GSFC

Language
en
InformationURL
Name
Wind SWE Instrument web page, GSFC
URL
https://wind.nasa.gov/swe/index.html
Description

Wind Solar Wind Experiment, SWE, Instruments, History, and Data Products web page, hosted by NASA GSFC

Language
en
InformationURL
Name
NSSDC Master Catalog, Wind, SWE instrument
URL
https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1994-071A-06
Description

General information concerning the Wind, Solar Wind Experiment, SWE, instrument

Language
en
InformationURL
Name
Wind MFI and SWE Key Parameter Data Access and Plotting web page, GSFC
URL
https://wind.nasa.gov/mfi_swe_plot.php
Description

Wind Magnetic Field Instrument, MFI, and Solar Wind Experiment, SWE, Key Parameter data access and plotting web page with selectable overplotting of DSCOVR data and links to CDF data directories, hosted by NASA GSFC

Language
en
InformationURL
Name
Original Wind SWE web page, MIT
URL
http://web.mit.edu/afs/athena/org/s/space/www/wind.html
Description

Wind Solar Wind Experiment, SWE, web page hosted by the Massachusetts Institute of Technology Space Plasma group. Since the Summer of 2015, the responsibility for Wind plasma data has been assumed by the Harvard Smithsonian Astrophysics Lab.

Language
en
InformationURL
Name
Original Wind SWE Instrument description web page, MIT
URL
http://web.mit.edu/space/www/wind/wind_instruments.html
Description

Wind Solar Wind Experiment, SWE, Instrument description web page hosted by the Massachusetts Institute of Technology Space Plasma group

Language
en
InformationURL
Name
Wind Magnetic Field Investigation, MFI, instrument, Space Science Reviews publication
URL
https://link.springer.com/article/10.1007/BF00751326
Description

Ogilvie, K.W., D.J. Chornay, R.J. Fritzenreiter, F. Hunsaker, J. Keller, J. Lobell, G. Miller, J.D. Scudder, E.C. Sittler, Jr., R.B. Torbert, D. Bodet, G. Needell, A.J. Lazarus, J.T. Steinberg, J.H. Tappan, A. Mavretic, and E. Gergin, SWE, a comprehensive plasma instrument for the Wind spacecraft, Space Sci. Rev., 71, 55-77, 1995, DOI: 10.1007/BF00751326

Language
en
InformationURL
Name
Wind SWE KP Readme file, MIT
URL
ftp://space.mit.edu/pub/plasma/wind/kp_files/000_README_WIND_P_FILES.TXT
Description

Wind Solar Wind Experiment, SWE, Key Parameter Readme file, hosted by the Massachusetts Institute of Technology, MIT

Language
en
PriorIDs
spase://VSPO/NumericalData/P_Wind_HDR_SWE_KP_92S
spase://VSPO/NumericalData/Wind/SWE/KeyParameters/PT92S
spase://VSPO/NumericalData/Wind/SWE/IonMoments/KeyParameter/PT99S
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Online
AccessRights
Open
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/wind/swe/swe_k0/
Description

Access to Data in CDF Format via ftp from SPDF

AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/wind/swe/swe_k0/
Description

Access to Data in CDF Format via http from SPDF

AccessURL
Name
CDAWeb
URL
https://cdaweb.sci.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=WI_K0_SWE&index=sp_phys
ProductKey
WI_K0_SWE
Description

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

Format
CDF
Encoding
None
Acknowledgement
Please acknowledge the Principal Investigator K.W. Ogilvie. Please acknowledge the Data Providers and CDAWeb when using these Data.
ProcessingLevel
Calibrated
ProviderProcessingLevel
Calculated
InstrumentIDs
spase://SMWG/Instrument/Wind/SWE
MeasurementType
Ephemeris
MeasurementType
InstrumentStatus
MeasurementType
ThermalPlasma
TemporalDescription
TimeSpan
StartDate
1994-11-01 12:00:00.000
StopDate
2019-01-18 23:58:49.000
Cadence
PT99S
ObservedRegion
Heliosphere
ObservedRegion
Heliosphere.Inner
ObservedRegion
Heliosphere.NearEarth
Parameter #1
Name
Epoch Time
ParameterKey
Epoch
Description

Epoch Time Tags, centered

Caveats
Average Type: standard This Parameter exhibits an increasing Monotonic Progression.
Cadence
PT99S
Units
ms
UnitsConversion
1.0e-3>s
RenderingHints
AxisLabel
Epoch
ScaleMin
6.2950845819904e+13
ScaleMax
6.3776657018904e+13
ValidMin
01-Nov-1994 00:00:00.000
ValidMax
31-Dec-2020 23:59:59.000
FillValue
31-Dec-9999 23:59:59.999
Support
SupportQuantity
Temporal
Parameter #2
Name
Time Interval, half interval
Set
Time series defined by using: EPOCH
ParameterKey
Delta_time
Description

Time Interval, half interval, delta time from center time start/finish to sample data for parameters

Caveats
Average Type: standard
Cadence
PT99S
Units
ms
UnitsConversion
1.0e-3>s
RenderingHints
AxisLabel
Del Time
ValueFormat
E10.4
ScaleMin
2000.0
ScaleMax
200000.0
ValidMin
0.0
ValidMax
300000.0
FillValue
-1.0e+31
Support
SupportQuantity
Temporal
Parameter #3
Name
Time, PB5 format
Set
Time series defined by using: EPOCH
ParameterKey
Time_PB5
Description

Time in PB5 format: Year, Day, and Milliseconds of Day

Cadence
PT99S
Structure
Size
3
Element
Name
Year
Index
1
Units
a
ValidMin
1994
ValidMax
2020
RenderingHints
AxisLabel
year
ScaleMin
1994
ScaleMax
2020
Element
Name
Day of Year (Jan 1 = Day 1)
Index
2
Units
d
ValidMin
305
ValidMax
365
RenderingHints
AxisLabel
day
ScaleMin
305
ScaleMax
365
Element
Name
Elapsed millisecond of day
Index
3
Units
ms
ValidMin
0
ValidMax
86399000
RenderingHints
AxisLabel
msec
ScaleMin
0
ScaleMax
86399000
FillValue
-2147483648
Support
Qualifier
Array
SupportQuantity
Temporal
Parameter #4
Name
Post Gap Flag
Set
Time series defined by using: EPOCH
ParameterKey
GAP_FLAG
Description

Post Gap Flag: 0=No gap immediately prior to this record, for other values: see guidelines

Cadence
PT99S
RenderingHints
DisplayType
TimeSeries
AxisLabel
Data Gap
ValueFormat
I2
ScaleMin
0
ScaleMax
3
ValidMin
0
ValidMax
15
FillValue
-2147483648
Support
Qualifier
Scalar
SupportQuantity
Velocity
Parameter #5
Name
SWE Instrument Mode
Set
Time series defined by using: EPOCH
ParameterKey
MODE
Description

Solar Wind Experiment, SWE, Instrument Mode

Cadence
PT99S
RenderingHints
AxisLabel
Mode
ValueFormat
I2
ScaleMin
0
ScaleMax
5
ValidMin
0
ValidMax
15
FillValue
-2147483648
Support
Qualifier
Scalar
SupportQuantity
InstrumentMode
Parameter #6
Name
Spacecraft Position, GSE Cartesian coordinates
Set
Time series defined by using: EPOCH
ParameterKey
SC_pos_gse
Description

Spacecraft Position, Geocentric Solar Ecliptic, GSE, Cartesian coordinates

Caveats
Average Type: standard
Cadence
PT99S
Units
km
UnitsConversion
1.0e3>m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
RenderingHints
DisplayType
TimeSeries
ValueFormat
F9.1
ScaleMin
-2.0e+06
ScaleMax
2.0e+06
Structure
Size
3
Element
Name
WI X (GSE)
Index
1
RenderingHints
AxisLabel
x
Element
Name
WI Y (GSE)
Index
2
RenderingHints
AxisLabel
y
Element
Name
WI Z (GSE)
Index
3
RenderingHints
AxisLabel
z
ValidMin
-2.0e+06
ValidMax
2.0e+06
FillValue
-1.0e+31
Support
Qualifier
Vector
SupportQuantity
Velocity
Parameter #7
Name
Spacecraft Position, GSM Cartesian coordinates
Set
Time series defined by using: EPOCH
ParameterKey
SC_pos_GSM
Description

Spacecraft Position, Geocentric Solar Magnetospheric, GSM, Cartesian coordinates

Caveats
Average Type: standard
Cadence
PT99S
Units
km
UnitsConversion
1.0e3>m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSM
RenderingHints
DisplayType
TimeSeries
ValueFormat
F9.1
ScaleMin
-2.0e+06
ScaleMax
2.0e+06
Structure
Size
3
Element
Name
WI X (GSM)
Index
1
RenderingHints
AxisLabel
x
Element
Name
WI Y (GSM)
Index
2
RenderingHints
AxisLabel
y
Element
Name
WI Z (GSM)
Index
3
RenderingHints
AxisLabel
z
ValidMin
-2.0e+06
ValidMax
2.0e+06
FillValue
-1.0e+31
Support
Qualifier
Vector
SupportQuantity
Velocity
Parameter #8
Name
Spacecraft Position, Geocentric Radial Distance
Set
Time series defined by using: EPOCH
ParameterKey
SC_pos_R
Description

Spacecraft Position, Geocentric Radial Distance, R

Caveats
Average Type: standard
Cadence
PT99S
Units
km
UnitsConversion
1.0e3>m
RenderingHints
DisplayType
TimeSeries
AxisLabel
WI Rad Dist
ValueFormat
F9.1
ScaleMin
6400.0
ScaleMax
4.0e+06
ValidMin
6400.0
ValidMax
4.0e+06
FillValue
-1.0e+31
Support
Qualifier
Magnitude
Qualifier
Scalar
SupportQuantity
Velocity
Parameter #9
Name
Data Quality Flag, overall
Set
Time series defined by using: EPOCH
ParameterKey
DQF
Description

Data Quality Flag, overall: 0=Good, 1=Bad

Cadence
PT99S
RenderingHints
AxisLabel
DQ FLAG
ValueFormat
I1
ScaleMin
0
ScaleMax
1
ValidMin
0
ValidMax
1
FillValue
-2147483648
Support
Qualifier
Scalar
SupportQuantity
Velocity
Parameter #10
Name
Data Quality Flag, Velocity
Set
Time series defined by using: EPOCH
ParameterKey
QF_V
Description

Data Quality Flag, Velocity, V: 0=OK, 2=Caution, 130=Caution, all other values=Not valid

Caveats
Velocity Quality Flag: 0=OK; 2=parabolic 3-point fit only; 130=parabolic 3-point fit only, senso only, N/S angle zero degrees assumed; Other values NOT VALID
Cadence
PT99S
RenderingHints
AxisLabel
QF_V
ValueFormat
I11
ScaleMin
0
ScaleMax
256
ValidMin
0
ValidMax
2147483647
FillValue
-2147483648
Support
Qualifier
Scalar
SupportQuantity
Velocity
Parameter #11
Name
Data Quality Flag, Proton Thermal Speed
Set
Time series defined by using: EPOCH
ParameterKey
QF_Vth
Description

Data Quality Flag, Proton Thermal Speed, Vth: 0=OK, 2=Caution, 130=Caution, all other values=Not valid

Caveats
Proton thermal speed Quality Flag: 0=OK; 2=parabolic 3-point fit only; 130=parabolic 3-point fit only, senso only, N/S angle zero degrees assumed; Other values NOT VALID
Cadence
PT99S
RenderingHints
AxisLabel
QF_Vth
ValueFormat
I11
ScaleMin
0
ScaleMax
255
ValidMin
0
ValidMax
2147483647
FillValue
-2147483648
Support
Qualifier
Scalar
SupportQuantity
Velocity
Parameter #12
Name
Data Quality Flag, Proton Number Density
Set
Time series defined by using: EPOCH
ParameterKey
QF_Np
Description

Data Quality Flag, Proton Density, Np: 0=OK, 2=Caution, 130=Caution, all other values=Not valid

Caveats
Proton Density Quality Flag: 0=OK; 2=parabolic 3-point fit only; 130=parabolic 3-point fit only, senso only, N/S angle zero degrees assumed; Other values NOT VALID
Cadence
PT99S
RenderingHints
AxisLabel
QF_Np
ValueFormat
I11
ScaleMin
0
ScaleMax
255
ValidMin
0
ValidMax
2147483647
FillValue
-2147483648
Support
Qualifier
Scalar
SupportQuantity
Velocity
Parameter #13
Name
Data Quality Flag, Alpha/Proton Number Density Ratio
Set
Time series defined by using: EPOCH
ParameterKey
QF_a/p
Description

Data Quality Flag, Alpha Particle to Proton Number Density Ratio, Na/Np: 0=OK, All values greater than zero=Not valid

Cadence
PT99S
RenderingHints
AxisLabel
QF_a/p
ValueFormat
I11
ScaleMin
0
ScaleMax
256
ValidMin
0
ValidMax
2147483647
FillValue
-2147483648
Support
Qualifier
Scalar
SupportQuantity
Velocity
Parameter #14
Name
Solar Wind Velocity Vector, GSE Cartesian coordinates
Set
Time series defined by using: EPOCH
ParameterKey
V_GSE
Description

Solar Wind Velocity Vector, Geocentric Solar Ecliptic, GSE, Cartesian coordinates

Cadence
PT99S
Units
km/s
UnitsConversion
1.0e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
RenderingHints
DisplayType
TimeSeries
ValueFormat
F8.1
Structure
Size
3
Element
Name
VX (GSE)
Index
1
ValidMin
-1800.0
ValidMax
0.0
RenderingHints
AxisLabel
x
ScaleMin
-1200.0
ScaleMax
0.0
Element
Name
VY (GSE)
Index
2
ValidMin
-900.0
ValidMax
900.0
RenderingHints
AxisLabel
y
ScaleMin
-500.0
ScaleMax
500.0
Element
Name
VZ (GSE)
Index
3
ValidMin
-900.0
ValidMax
900.0
RenderingHints
AxisLabel
z
ScaleMin
-500.0
ScaleMax
500.0
FillValue
-1.0e+31
Particle
ParticleType
Ion
Qualifier
Vector
ParticleQuantity
Velocity
Parameter #15
Name
Solar Wind Velocity Vector, GSM Cartesian coordinates
Set
Time series defined by using: EPOCH
ParameterKey
V_GSM
Description

Solar Wind Velocity Vector, Geocentric Solar Magnetospheric, GSM, Cartesian coordinates

Cadence
PT99S
Units
km/s
UnitsConversion
1.0e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSM
RenderingHints
DisplayType
TimeSeries
ValueFormat
F8.1
Structure
Size
3
Element
Name
VX (GSM)
Index
1
ValidMin
-1800.0
ValidMax
0.0
RenderingHints
AxisLabel
x
ScaleMin
-1200.0
ScaleMax
0.0
Element
Name
VY (GSM)
Index
2
ValidMin
-900.0
ValidMax
900.0
RenderingHints
AxisLabel
y
ScaleMin
-500.0
ScaleMax
500.0
Element
Name
VZ (GSM)
Index
3
ValidMin
-900.0
ValidMax
900.0
RenderingHints
AxisLabel
z
ScaleMin
-500.0
ScaleMax
500.0
FillValue
-1.0e+31
Particle
ParticleType
Ion
Qualifier
Array
ParticleQuantity
Velocity
Parameter #16
Name
Solar Wind Ion Bulk Flow Vector, GSE spherical coordinates
Set
Time series defined by using: EPOCH
ParameterKey
V_GSE_p
Description

Solar Wind Ion Bulk Flow Vector, Geocentric Solar Ecliptic, GSE, spherical coordinates, speed magnitude, E/W flow positive from the west of the Sun, N/S flow positive from the south of the Sun

Cadence
PT99S
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
RenderingHints
DisplayType
TimeSeries
ValueFormat
F6.1
Structure
Size
3
Element
Name
Flow Speed
Index
1
Units
km/s
ValidMin
0.0
ValidMax
2000.0
RenderingHints
AxisLabel
mag
ScaleMin
200.0
ScaleMax
1000.0
Element
Name
E/W Flow(GSE)
Index
2
Units
°
ValidMin
-50.0
ValidMax
50.0
RenderingHints
AxisLabel
lon
ScaleMin
-20.0
ScaleMax
20.0
Element
Name
N/S Flow(GSE)
Index
3
Units
°
ValidMin
-50.0
ValidMax
50.0
RenderingHints
AxisLabel
lat
ScaleMin
-20.0
ScaleMax
20.0
FillValue
-1.0e+31
Particle
ParticleType
Ion
Qualifier
Vector
ParticleQuantity
Velocity
Parameter #17
Name
Solar Wind Thermal Speed
Set
Time series defined by using: EPOCH
ParameterKey
THERMAL_SPD
Description

Solar Wind Thermal Speed, Vth, sqrt(2kT/M), most probable

Cadence
PT99S
Units
km/s
UnitsConversion
1.0e3>m/s
RenderingHints
DisplayType
TimeSeries
AxisLabel
SW Vth
ValueFormat
F6.1
ScaleMin
0.0
ScaleMax
200.0
ValidMin
0.0
ValidMax
500.0
FillValue
-1.0e+31
Particle
ParticleType
Ion
Qualifier
Scalar
ParticleQuantity
ThermalSpeed
Parameter #18
Name
Solar Wind Proton Number Density
Set
Time series defined by using: EPOCH
ParameterKey
Np
Description

Solar Wind Proton Number Density, scalar

Cadence
PT99S
Units
cm^-3
UnitsConversion
1.0e6>m^-3
RenderingHints
DisplayType
TimeSeries
AxisLabel
Ion N
ValueFormat
F7.1
ScaleMin
0.0
ScaleMax
200.0
ValidMin
0.0
ValidMax
1000.0
FillValue
-1.0e+31
Particle
ParticleType
Ion
Qualifier
Scalar
ParticleQuantity
NumberDensity
Parameter #19
Name
Alpha Particle Density Percentage
Set
Time series defined by using: EPOCH
ParameterKey
Alpha_Percent
Description

Alpha Particle Density Percentage

Cadence
PT99S
RenderingHints
DisplayType
TimeSeries
AxisLabel
Na/Np
ValueFormat
F7.3
ScaleMin
0.0
ScaleMax
100.0
ValidMin
0.0
ValidMax
100.0
FillValue
-1.0e+31
Particle
ParticleType
AlphaParticle
Qualifier
Ratio
Qualifier
Scalar
ParticleQuantity
NumberDensity
AtomicNumber
2