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STEREO-A Plasma and Suprathermal Ion Composition (PLASTIC) 1-hour Proton Plasma Parameters

(2023). STEREO-A Plasma and Suprathermal Ion Composition (PLASTIC) 1-hour Proton Plasma Parameters [Data set]. NASA Space Physics Data Facility. https://doi.org/10.48322/nax5-0024. Accessed on .

Note: Proper references, including those in BibTex or other formats, should include the "Accessed on date" as shown above to identify the version of the resource being cited in a given publication.

ResourceID
spase://NASA/NumericalData/STEREO-A/PLASTIC/Protons/PT1H

Description

This data product contains 1-hour averaged values of solar wind proton flow speed, density, and temperature and corresponding thermal speed. The records also hold flow velocity vector components and direction angles in HERTN and RTN coordinates. Chi-squared and statistical uncertainties are included, as are various flags. STEREO position information is given in radial distance and HEE, HEEQ and HCI direction angles.

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Details

Version:2.6.0

NumericalData

ResourceID
spase://NASA/NumericalData/STEREO-A/PLASTIC/Protons/PT1H
ResourceHeader
ResourceName
STEREO-A Plasma and Suprathermal Ion Composition (PLASTIC) 1-hour Proton Plasma Parameters
DOI
https://doi.org/10.48322/nax5-0024
ReleaseDate
2023-07-30 12:34:56.789
RevisionHistory
RevisionEvent
ReleaseDate
2021-04-27 15:38:11
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2023-07-30 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

This data product contains 1-hour averaged values of solar wind proton flow speed, density, and temperature and corresponding thermal speed. The records also hold flow velocity vector components and direction angles in HERTN and RTN coordinates. Chi-squared and statistical uncertainties are included, as are various flags. STEREO position information is given in radial distance and HEE, HEEQ and HCI direction angles.

Acknowledgement
Please acknowledge STEREO PLASTIC Investigation (A.B. Galvin, PI) and NASA Contract NAS5-00132.
PublicationInfo
Authors
Galvin, Antoinette, B.
PublicationDate
2023-01-01 00:00:00
PublishedBy
NASA Space Physics Data Facility
Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://SMWG/Person/Antoinette.B.Galvin
2.MetadataContactspase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
PLASTIC Index page at UNH
URL
http://stereo.sr.unh.edu/data/PLASTIC_Resources/index.htm
PriorIDs
spase://VHO/NumericalData/STEREO-A/PLASTIC/Protons/PT1H
spase://VSPO/NumericalData/STEREO-A/PLASTIC/Protons/PT1H
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=STA_L2_PLA_1DMAX_1HR&index=sp_phys
ProductKey
STA_L2_PLA_1DMAX_1HR
Format
Text
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb HAPI Server
URL
https://cdaweb.gsfc.nasa.gov/hapi
Style
HAPI
ProductKey
STA_L2_PLA_1DMAX_1HR
Description

Web Service to this product using the HAPI interface.

Format
CSV
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/stereo/ahead/l2/plastic/1dmax/1hr/
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/stereo/ahead/l2/plastic/1dmax/1hr/
Format
CDF
DataExtent
Quantity
72
Units
KB
Per
P1D
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/STEREO_SC
Availability
Online
AccessRights
Open
AccessURL
Name
STEREO Science Center - ASCII
URL
https://stereo-ssc.nascom.nasa.gov/data/ins_data/plastic/level2/Protons/Derived_from_1D_Maxwellian/ASCII/1hr/A/
Description

In ASCII via ftp from SSC

Format
Text
DataExtent
Quantity
9
Units
KB
Per
P1D
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/STEREO_SC
Availability
Online
AccessRights
Open
AccessURL
Name
STEREO Science Center - CDF
URL
https://stereo-ssc.nascom.nasa.gov/data/ins_data/plastic/level2/Protons/Derived_from_1D_Maxwellian/ahead/1hr/
Description

In CDF via ftp from SSC

Format
CDF
DataExtent
Quantity
72
Units
KB
Per
P1D
ProcessingLevel
Calibrated
InstrumentIDs
spase://SMWG/Instrument/STEREO-A/PLASTIC
MeasurementType
ThermalPlasma
TemporalDescription
TimeSpan
StartDate
2007-02-14 00:00:00
RelativeStopDate
P3M
Cadence
PT1H
ObservedRegion
Heliosphere.Remote1AU
Parameter #1
Name
Epoch
ParameterKey
epoch_1hr
Description

Beginning of time interval

Units
ms
ValidMin
6.2798371e+13
ValidMax
6.4092125e+13
FillValue
-1e31
Support
SupportQuantity
Temporal
Parameter #2
Name
PB5 Time
ParameterKey
time_pb5
Description

Time of observation in Year, Day, and milliseconds

ValidMin
1997 237 0
ValidMax
2030 365 0
FillValue
-2147483648
Support
SupportQuantity
Temporal
Parameter #3
Name
Error Condition
ParameterKey
error_1hr
Description

Inidcates possible error condition. 0=no known issues, 1=Processing error, 2=Level 1 error, 3=Data overflow, 4=Data outside 3-sigma limit (1 hr window). 5=Data gap (usually due to operations, 6=Jump in thermal speed, use caution, 7=Suspicious thermal speed, 8=Removed by hand.

ValidMin
0
ValidMax
7
FillValue
-1e31
Support
SupportQuantity
Other
Parameter #4
Name
Density Value Caution
ParameterKey
caution_1hr
Description

Indicates how sensitive the density value is to method for determining background correction. 0=no issues (lt 5% effect). 1=minor issues (5-10% effect). 2=use with caution (gt 10% effect).

ValidMin
0.0
ValidMax
2.0
FillValue
-1e31
Support
SupportQuantity
Other
Parameter #5
Name
Cycles Density
ParameterKey
cycles_den_1hr
Description

Indicates how many 1-min cycles were included in average

ValidMin
0.0
ValidMax
60.0
FillValue
-1e31
Support
SupportQuantity
Other
Parameter #6
Name
Cycles Speed
ParameterKey
cycles_speed_1hr
Description

Indicates how many 1-min cycles were included in average.

ValidMin
0.0
ValidMax
60.0
FillValue
-1e31
Support
SupportQuantity
Other
Parameter #7
Name
Cycles North/South Flow Angle
ParameterKey
cycles_ns_inst_1hr
Description

Indicates how many 1-min cycles were included in average. Used for N/S flow angle (instrument coordinates only)

ValidMin
0.0
ValidMax
60.0
FillValue
-1e31
Support
SupportQuantity
Other
Parameter #8
Name
Cycles Velocity
ParameterKey
cycles_vel_1hr
Description

Indicates how many 1-min cycles were included in average. Used for velocity components, and angles (except ns_inst).

ValidMin
0.0
ValidMax
60.0
FillValue
-1e31
Support
SupportQuantity
Other
Parameter #9
Name
Attitude Flage
ParameterKey
attitude_flag_1hr
Description

Indicates when instrument flow angles are not in nominal s/c orientation. 0=OK. 1=problem. [roll, yaw, pitch]

ValidMin
0.0
ValidMax
1
FillValue
-1e31
Support
SupportQuantity
Other
Parameter #10
Name
Source Flage for EW Data
ParameterKey
ew_source_flag_1hr
Description

Source Flage for EW Data. 1st elem=source: 0=main (no data). 1=schan. 2=mixed (data from schan). 3=combination. 2nd elem=flag: 0=got peak in dist. 1=missed peak. 2=combination

ValidMin
0.0
ValidMax
3
FillValue
-1e31
Support
SupportQuantity
Other
Parameter #11
Name
Reduced Chi Squared
ParameterKey
Reduced_Chi2_1hr
Description

Reduced Chi Square for 1D Maxwellian fit

ValidMin
0.0
ValidMax
5.0
FillValue
-1e31
Support
SupportQuantity
Other
Parameter #12
Name
Preliminary Statistical Uncertainty for the Angles
ParameterKey
stat_uncertainty_angle_1hr
Description

Preliminary Statistical Uncertainty for the Angles

ValidMin
0.0
ValidMax
100.0
FillValue
-1e31
Support
SupportQuantity
Other
Parameter #13
Name
Proton Number Density
ParameterKey
proton_number_density_1hr
Description

Proton Number Density. 1D Maxwellian Fit

Units
1/cm^3
ValidMin
0.0
ValidMax
500.0
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
Fit
ParticleQuantity
NumberDensity
Parameter #14
Name
Proton Bulk Speed
ParameterKey
proton_bulk_speed_1hr
Description

Proton Bulk Speed. 1D Maxwellian Fit

Units
km/s
ValidMin
200.0
ValidMax
3000.0
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
Fit
ParticleQuantity
FlowSpeed
Parameter #15
Name
Proton Temperature
ParameterKey
proton_temperature_1hr
Description

Proton Temperature. 1D Maxwellian Fit

Units
K
ValidMin
1000
ValidMax
10000000
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
Fit
ParticleQuantity
Temperature
Parameter #16
Name
Proton Thermal Speed
ParameterKey
proton_thermal_speed_1hr
Description

Proton Thermal Speed. 1D Maxwellian Fit

Units
km/s
ValidMin
0
ValidMax
500
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
Fit
ParticleQuantity
ThermalSpeed
Parameter #17
Name
Proton North/South Flow Angle
ParameterKey
proton_n_s_flow_angle_inst_1hr
Description

Proton Flow Angle North/South. 1D Maxwellian Fit. Instrument Coordinates. Angle gt 0 means flow from S of ecliptic plane (i.e. Vn gt 0). No aberration angle. No transformation.

Units
degrees
ValidMin
-25
ValidMax
25
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
DirectionAngle.ElevationAngle
ParticleQuantity
Velocity
Parameter #18
Name
Proton E/W Flow Angle
ParameterKey
proton_e_w_flow_angle_inst_1hr
Description

Proton East/West Flow Angle. Instrument Coordinates. Angle gt 0 means flow from E of the sun (i.e. Vt gt 0). inst. No aberration angle. No transformation.

Units
degrees
ValidMin
-25
ValidMax
25
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
DirectionAngle.AzimuthAngle
ParticleQuantity
Velocity
Parameter #19
Name
Proton North/South Flow Angle
ParameterKey
proton_n_s_flow_angle_HERTN_1hr
Description

Proton Flow Angle North/South. 1D Maxwellian Fit. Angle gt 0 means flow from S of ecliptic plane (i.e. Vn gt 0). No aberration angle. No transformation.

Units
degrees
ValidMin
-25
ValidMax
25
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
DirectionAngle.ElevationAngle
ParticleQuantity
Velocity
Parameter #20
Name
Proton E/W Flow Angle
ParameterKey
proton_e_w_flow_angle_HERTN_1hr
Description

Proton East/West Flow Angle. Angle gt 0 means flow from E of the sun (i.e. Vt gt 0). inst. No aberration angle. No transformation.

Units
degrees
ValidMin
-25
ValidMax
25
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
DirectionAngle.AzimuthAngle
ParticleQuantity
Velocity
Parameter #21
Name
Proton Velocity - R Component
ParameterKey
proton_Vr_HERTN_1hr
Description

Proton Vr. 1D Maxwellian Fit. HERTN coordinates

Units
km/s
ValidMin
200
ValidMax
3000
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
Component.I
ParticleQuantity
Velocity
Parameter #22
Name
Proton Velocity - T Component
ParameterKey
proton_Vt_HERTN_1hr
Description

Proton Vt. 1D Maxwellian Fit. HERTN coordinates

Units
km/s
ValidMin
200
ValidMax
3000
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
Component.J
ParticleQuantity
Velocity
Parameter #23
Name
Proton Velocity - N Component
ParameterKey
proton_Vn_HERTN_1hr
Description

Proton Vn. 1D Maxwellian Fit. HERTN coordinates

Units
km/s
ValidMin
200
ValidMax
3000
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
Component.K
ParticleQuantity
Velocity
Parameter #24
Name
Proton North/South Flow Angle
ParameterKey
proton_n_s_flow_angle_RTN_1hr
Description

Proton Flow Angle North/South. 1D Maxwellian Fit. Angle gt 0 means flow from S of ecliptic plane (i.e. Vn gt 0)

Units
degrees
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
RTN
ValidMin
-25
ValidMax
25
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
DirectionAngle.ElevationAngle
ParticleQuantity
Velocity
Parameter #25
Name
Proton E/W Flow Angle
ParameterKey
proton_e_w_flow_angle_RTN_1hr
Description

Proton East/West Flow Angle. Angle gt 0 means flow from E of the sun (i.e. Vt gt 0).

Units
degrees
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
RTN
ValidMin
-25
ValidMax
25
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
DirectionAngle.AzimuthAngle
ParticleQuantity
Velocity
Parameter #26
Name
Proton Velocity - R Component
ParameterKey
proton_Vr_RTN_1hr
Description

Proton Vr. 1D Maxwellian Fit. HERTN coordinates

Units
km/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
RTN
ValidMin
200
ValidMax
3000
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
Component.I
ParticleQuantity
Velocity
Parameter #27
Name
Proton Velocity - T Component
ParameterKey
proton_Vt_RTN_1hr
Description

Proton Vt. 1D Maxwellian Fit. HERTN coordinates

Units
km/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
RTN
ValidMin
200
ValidMax
3000
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
Component.J
ParticleQuantity
Velocity
Parameter #28
Name
Proton Velocity - N Component
ParameterKey
proton_Vn_RTN_1hr
Description

Proton Vn. 1D Maxwellian Fit. HERTN coordinates

Units
km/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
RTN
ValidMin
200
ValidMax
3000
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
Component.K
ParticleQuantity
Velocity
Parameter #29
Name
Carrington Rotation
ParameterKey
carrington_rotation_1hr
Description

Carrington Rotation Number

ValidMin
2049
ValidMax
2180
FillValue
-1e31
Support
SupportQuantity
Other
Parameter #30
Name
Spacecraft Longitude - Carrington
ParameterKey
spcrft_lon_carr_1hr
Description

Spacecraft Longitude - Carrington

ValidMin
0
ValidMax
360
FillValue
-1e31
Support
SupportQuantity
Positional
Parameter #31
Name
Heliocentric Distance
ParameterKey
heliocentric_dist_1hr
Description

Heliocentric Distance

Units
km
ValidMin
1e8
ValidMax
2e8
FillValue
-1e31
Support
SupportQuantity
Positional
Parameter #32
Name
Spacecraft Longitude - HEE
ParameterKey
spcrft_lon_hee_1hr
Description

Spacecraft longitude - HEE

Units
degrees
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
HEE
ValidMin
-180
ValidMax
180
FillValue
-1e31
Support
SupportQuantity
Positional
Parameter #33
Name
Spacecraft Latitude - HEE
ParameterKey
spcrft_lat_hee_1hr
Description

Spacecraft latitude - HEE

Units
degrees
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
HEE
ValidMin
-90
ValidMax
90
FillValue
-1e31
Support
SupportQuantity
Positional
Parameter #34
Name
Spacecraft Longitude - HEEQ
ParameterKey
spcrft_lon_heeq_1hr
Description

Spacecraft longitude - HEEQ

Units
degrees
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
HEEQ
ValidMin
-180
ValidMax
180
FillValue
-1e31
Support
SupportQuantity
Positional
Parameter #35
Name
Spacecraft Latitude - HEEQ
ParameterKey
spcrft_lat_heeq_1hr
Description

Spacecraft latitude - HEEQ

Units
degrees
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
HEEQ
ValidMin
-90
ValidMax
90
FillValue
-1e31
Support
SupportQuantity
Positional
Parameter #36
Name
Spacecraft Longitude - HCI
ParameterKey
spcrft_lon_hci_1hr
Description

Spacecraft longitude - HCI

Units
degrees
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
HCI
ValidMin
-180
ValidMax
180
FillValue
-1e31
Support
SupportQuantity
Positional
Parameter #37
Name
Spacecraft Latitude - HCI
ParameterKey
spcrft_lat_hci_1hr
Description

Spacecraft latitude - HCI

Units
degrees
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
HCI
ValidMin
-90
ValidMax
90
FillValue
-1e31
Support
SupportQuantity
Positional