Version:2.3.0

NumericalData

ResourceHeader

ResourceName

ACE Solar Wind Electron, Proton, and Alpha Monitor (SWEPAM) Plasma Moments, Preliminary Values, Key Parameter (K0), 5 min Data

ReleaseDate

2019-10-23 19:31:33Z

Description

The ACE Browse Data are designed for monitoring large-scale Particle and Field Behavior and for selecting interesting Time Periods. The Data are 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. These are SWEPAM Browse Data. These Data have not validated by the Experimenters and should not be used except for preliminary Examination prior to detailed Studies. SWEPAM - Solar Wind Electron Proton Alpha Monitor References: http://www.srl.caltech.edu/ACE/.

Acknowledgement

D.J. McComas, Please acknowledge the Principal Investigator, D.J. McComas, Southwest Research Institute.

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 Science Center Home Page for Level 2 Data Release Notes

URL

http://www.srl.caltech.edu/ACE/ASC/level2/index.html

Description

ACE Level 2 Data Release Notes Home Page

InformationURL

Name

ACE Science Center Home Page for Level 2 Rules of Use

URL

http://www.srl.caltech.edu/ACE/ASC/level2/policy_lvl2.html

Description

ACE Level 2 Rules of Use Home Page

InformationURL

Name

ACE Solar Wind Electron, Proton, and Alpha Monitor (SWEPAM) Instrument Home Page at the Los Alamos National Laboratory

URL

https://www.swepam.lanl.gov

Description

ACE SWEPAM Instrument Home Page at LANL

PriorIDs

spase://VSPO/NumericalData/ACE/SWEPAM/PT300S

spase://VSPO/NumericalData/P_ACE_HDR_SWEPAM_300S

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_k0/

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_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=AC_K0_SWE&index=sp_phys

ProductKey

AC_K0_SWE

Description

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

Format

CDF

Encoding

None

Acknowledgement

D.J. McComas, Please acknowledge the Principal Investigator, D.J. McComas, Southwest Research Institute. Please acknowledge the Data Providers and CDAWeb when using these Data.

ProviderProcessingLevel

Calculated

MeasurementType

ThermalPlasma

TemporalDescription

TimeSpan

StartDate

2017-01-01 00:00:00.000

RelativeStopDate

-P7D

Note

The Data become available about one Week after Observation

Cadence

PT5M

ObservedRegion

Heliosphere

ObservedRegion

Heliosphere.Inner

ObservedRegion

Heliosphere.NearEarth

Parameter #1

Name

Epoch Time

ParameterKey

Epoch

Description

Epoch Time, Centered

Caveats

Average Type: standard This Parameter exhibits an increasing Monotonic Progression.

Cadence

PT5M

Units

ms

UnitsConversion

1.0e-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 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

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

86400

RenderingHints

AxisLabel

msec

ScaleMin

0

ScaleMax

86400

FillValue

-2147483648

Support

SupportQuantity

Temporal

Parameter #3

Name

Solar Wind Proton Number Density

Set

Time Series defined by using: EPOCH

ParameterKey

Np

Description

Solar Wind Proton Number Density

Caveats

Np is the Solar Wind Proton Number Density in Units of cm^-3, as calculated by Integration of the Ion Distribution Function. These Data are Preliminary Values and are for Browse use only.

Cadence

PT5M

Units

cm^-3

UnitsConversion

1.0e6>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

Magnitude

Qualifier

Moment

ParticleQuantity

NumberDensity

AtomicNumber

1

Parameter #4

Name

Solar Wind Proton Bulk Speed

Set

Time Series defined by using: EPOCH

ParameterKey

Vp

Description

Solar Wind Proton Bulk Speed

Caveats

Vp is the Solar Wind Proton Speed, or more generally just the Solar wind Bulk Speed. It is obtained by Integration of the Ion (Proton) Distribution Function. These Data are Preliminary Values and are for Browse use only.

Cadence

PT5M

Units

km/s

UnitsConversion

1.0e3>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

Proton

Qualifier

Moment

Qualifier

Scalar

ParticleQuantity

FlowSpeed

AtomicNumber

1

Parameter #5

Name

Solar Wind Alpha Particle to Proton Density Ratio, Percentage

Set

Time Series defined by using: EPOCH

ParameterKey

He_ratio

Description

Solar Wind Alpha Particle to Proton, He++/H+, Density Ratio, Percentage

Caveats

He_ratio is the Ratio of the Number Density of Helium++ Ions to the Number Density of Protons. These Data are Preliminary Values and are for Browse use only.

Cadence

PT5M

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

Particle

ParticleType

AlphaParticle

ParticleType

Proton

Qualifier

Ratio

Qualifier

Scalar

ParticleQuantity

NumberDensity

AtomicNumber

1

AtomicNumber

2

Parameter #6

Name

Solar Wind Proton Temperature, Radial

Set

Time Series defined by using: EPOCH

ParameterKey

Tpr

Description

Solar Wind Proton Temperature, Radial

Caveats

The Radial Component of the Proton Temperature is the (1,1) Component of the Temperature Tensor, along the Radial Direction. It is obtained by Integration of the Ion (Proton) Distribution Function. These Data are Preliminary Values and are for Browse use only.

Cadence

PT5M

Units

K

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

Moment

Qualifier

Scalar

ParticleQuantity

Temperature

AtomicNumber

1

Parameter #7

Name

Weight, Number of Measurements in Average

Set

Time Series defined by using: EPOCH

ParameterKey

Weight

Description

Weight, Number of Measurements in Average for 5 min Data

Cadence

PT5M

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