ACE Solar Wind Electron, Proton, and Alpha Monitor (SWEPAM), Key Parameter, K1, Preliminary Browse Data

ResourceID

spase://VSPO/NumericalData/ACE/SWEPAM/KeyParameter/K1/PT1H

Description

ACE Solar Wind Electron Proton Alpha Monitor (SWEPAM), Key Parameter, K1, Browse Data is designed for monitoring large scale particle and field behavior and for selecting interesting time periods. The data is automatically generated from the spacecraft data stream using simple algorithms provided by the instrument teams. It is not routinely checked for accuracy and is subject to revision. Use this data at your own risk, and consult with the appropriate instrument teams about citing it. SWEPAM browse data is not validated by the experimenters and should not be used except for preliminary examination prior to detailed Studies. See: http://www.srl.caltech.edu/ACE/.

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Details

Version:2.2.9

NumericalData

ResourceID

spase://VSPO/NumericalData/ACE/SWEPAM/KeyParameter/K1/PT1H

ResourceHeader

ResourceName: ACE Solar Wind Electron, Proton, and Alpha Monitor (SWEPAM), Key Parameter, K1, Preliminary Browse Data

ReleaseDate: 2019-10-23 19:31:33Z

Description

Acknowledgement: D.J. McComas

Contacts

	Role	Person
1.	PrincipalInvestigator	spase://SMWG/Person/David.J.McComas
2.	MetadataContact	spase://SMWG/Person/Robert.E.McGuire
3.	MetadataContact	spase://SMWG/Person/Lee.Frost.Bargatze

InformationURL

Name: ACE SWEPAM Instrument Description

URL: https://www.swepam.lanl.gov/paper.html

Description

Insrument Description for the Advanced Composition Explorer, ACE, Solar Wind Electron Proton Alpha Monitor, SWEPAM, McComas, et al., 1997, Los Alamos National Laboratory Internal Document LA-UR-97-1320

PriorIDs

spase://VSPO/NumericalData/ACE/SWEPAM/PT1H

AccessInformation

RepositoryID: spase://SMWG/Repository/NASA/GSFC/SPDF

Availability: Online

AccessRights: Open

AccessURL

Name: FTP access to files at SPDF

URL: ftps://spdf.gsfc.nasa.gov/pub/data/ace/swepam/level_2_cdaweb/swe_k1/

Description

Access to Data in CDF Format via ftp from SPDF

AccessURL

Name: HTTP access to files at SPDF

URL: https://spdf.gsfc.nasa.gov/pub/data/ace/swepam/level_2_cdaweb/swe_k1/

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=AC_K1_SWE&index=sp_phys

ProductKey: AC_K1_SWE

Description

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

Format: CDF

Encoding: None

Acknowledgement: D.J. McComas. Please acknowledge the data providers and CDAWeb when using these data.

ProcessingLevel: Uncalibrated

InstrumentIDs

spase://SMWG/Instrument/ACE/SWEPAM

MeasurementType: ThermalPlasma

TemporalDescription

TimeSpan

StartDate: 2017-01-01 00:00:00

RelativeStopDate: -P7D

Note: Data are current to within about 1 week

Cadence: PT1H

ObservedRegion: Heliosphere

ObservedRegion: Heliosphere.NearEarth

ObservedRegion: Heliosphere.Inner

Parameter #1

Name: Time

ParameterKey: Epoch

Description

Time, Centered

Caveats: Average Type: standard This parameter exhibits an increasing monotonic progression.

Cadence: PT1H

Units: ms

UnitsConversion: 1e-3>s

RenderingHints

AxisLabel: Epoch

ValueFormat: E14.8

ScaleMin: 6.2987652219904e+13

ScaleMax: 6.3745034619904e+13

ScaleType: LinearScale

ValidMin: 01-Jan-1996 00:00:00.000

ValidMax: 01-Jan-2020 00:00:00.000

FillValue: -1.0e+31

Support

SupportQuantity: Temporal

Parameter #2

Name: Time PB5

Set: Time series defined by using: EPOCH

ParameterKey: Time_PB5

Description

Time in PB5 Format: Year, Day, Milliseconds, Observation Time

Caveats: This parameter exhibits an increasing monotonic progression.

Cadence: PT1H

RenderingHints

ScaleType: LinearScale

Structure

Size: 3

Element

Name: Year

Index: 1

Units: year

ValidMin: 1997

ValidMax: 2020

RenderingHints

AxisLabel: year

ScaleMin: 1997

ScaleMax: 2020

Element

Name: Day of Year, Jan 1=Day 1

Index: 2

Units: d

ValidMin: 1

ValidMax: 366

RenderingHints

AxisLabel: day

ScaleMin: 1

ScaleMax: 366

Element

Name: Elapsed milliseconds of day

Index: 3

Units: ms

ValidMin: 0

ValidMax: 86399999

RenderingHints

AxisLabel: msec

ScaleMin: 0

ScaleMax: 86399999

FillValue: -2147483648

Support

SupportQuantity: Temporal

Parameter #3

Name: Proton Number Density

Set: Time series defined by using: EPOCH

ParameterKey: Np

Description

SWEPAM, Solar Wind Proton Number Density, Scalar, Preliminary Values, Browse use only

Caveats: Np is the Proton Number Density in Units of cm^-3. It is obtained by Integration of the Ion, roughly the Proton, Distribution Function.

Cadence: PT1H

Units: cm^-3

UnitsConversion: 1e6>m^-3

RenderingHints

DisplayType: TimeSeries

AxisLabel: SW H Num Density

ValueFormat: F6.2

ScaleMin: 0.0

ScaleMax: 200.0

ValidMin: 0.0

ValidMax: 1000.0

FillValue: -1.0e+31

Particle

ParticleType: Proton

Qualifier: Scalar

ParticleQuantity: NumberDensity

Parameter #4

Name: Solar Wind Proton Speed

Set: Time series defined by using: EPOCH

ParameterKey: Vp

Description

SWEPAM, Solar Wind Bulk Speed, Preliminary Values, Browse use only

Caveats: Vp is the Solar Wind Proton Speed, or more generally just the Solar Wind Bulk Speed. It is obtained by integrating the Ion, roughly the Proton, Distribution Function

Cadence: PT1H

Units: km/s

UnitsConversion: 1e3>m/s

RenderingHints

DisplayType: TimeSeries

AxisLabel: SW Bulk Speed

ValueFormat: F8.1

ScaleMin: 0.0

ScaleMax: 500.0

ValidMin: 0.0

ValidMax: 1000.0

FillValue: -1.0e+31

Particle

ParticleType: Ion

Qualifier: Magnitude

ParticleQuantity: Velocity

Parameter #5

Name: He Ratio, He++ to H+

Set: Time series defined by using: EPOCH

ParameterKey: He_ratio

Description

SWEPAM, Percentage of Helium++ Ions to Protons, He++/H+, Preliminary Values, Browse use only

Caveats: He_ratio is the Ratio of the Number Density of Helium++ Ions to the Number Density of Protons

Cadence: PT1H

RenderingHints

DisplayType: TimeSeries

AxisLabel: He++/H+

ValueFormat: F7.3

ScaleMin: 0.0

ScaleMax: 100.0

ValidMin: 0.0

ValidMax: 100.0

FillValue: -1.0e+31

Mixed

MixedQuantity: Other

ParticleType: Proton

ParticleType: AlphaParticle

Qualifier: Ratio

Parameter #6

Name: Proton Temperature, Radial Component

Set: Time series defined by using: EPOCH

ParameterKey: Tpr

Description

SWEPAM, Radial Component of the Proton Temperature, Preliminary Values, Browse use only

Caveats: The Proton Temperature is the 1,1 Component of the Temperature Tensor, along the Radial Direction. It is obtained by Integration of the Ion, roughly the Proton, Distribution Function.

Cadence: PT1H

Units: °K

CoordinateSystem

CoordinateRepresentation: Spherical

CoordinateSystemName: HG

RenderingHints

DisplayType: TimeSeries

AxisLabel: H Temp, radical

ValueFormat: F9.1

ScaleMin: 1000.0

ScaleMax: 100000.0

ValidMin: 1000.0

ValidMax: 1.0e+06

FillValue: -1.0e+31

Particle

ParticleType: Proton

Qualifier: Component.I

ParticleQuantity: Temperature

Parameter #7

Name: Number in Average

Set: Time series defined by using: EPOCH

ParameterKey: Weight

Description

SWEPAM, Number of Measurements in Average

Cadence: PT1H

RenderingHints

AxisLabel: Weight

ValueFormat: F4

ScaleMin: 0.0

ScaleMax: 10.0

ScaleType: LinearScale

ValidMin: 0.0

ValidMax: 10.0

FillValue: -1.0e+31

Support

SupportQuantity: Other