Data Access

Explorer 31 Electron Density and Temperature Data

Brace, Larry H. (2025). Explorer 31 Electron Density and Temperature Data [Data set]. Space Physics Data Facility. https://doi.org/10.48322/r1jk-sd44 .

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/Explorer31/CEP/PT60S

Description

Explorer 31 (DME-A) electron density and temperature data at 1-5 minute resolution, non-continuous, from Langmuir probe - cylindrical electrostatic probe

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Details

Version:2.7.1

MetadataRightsList

Rights

SchemeURI

https://spdx.org/licenses/

RightsIdentifierScheme

SPDX

RightsIdentifier

CC0-1.0

RightsURI

https://spdx.org/licenses/CC0-1.0.html

RightsName

Creative Commons Zero v1.0 Universal

Note

CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions

Version:2.7.1

NumericalData

ResourceID

spase://NASA/NumericalData/Explorer31/CEP/PT60S

NamingAuthority

NASA

ResourceType

NumericalData

ResourceHeader

ResourceName

Explorer 31 Electron Density and Temperature Data

DOI

https://doi.org/10.48322/r1jk-sd44

ReleaseDate

2026-07-21 12:04:55Z

RevisionHistory

RevisionEvent

ReleaseDate

2020-07-07 21:14:33Z

Note

Only known prior ReleaseDate of the metadata

RevisionEvent

ReleaseDate

2025-11-14 16:01:57Z

Note

Added PublicationInfo. Added ResourceType and NamingAuthority. ZCB

RevisionEvent

ReleaseDate

2025-12-04 13:29:11Z

Note

Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB

RevisionEvent

ReleaseDate

2026-06-26 13:16:54Z

Note

Add 'Z' to TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB

RevisionEvent

ReleaseDate

2026-07-21 12:04:55Z

Note

Added HelioData InformationURL. JWL

Description

Explorer 31 (DME-A) electron density and temperature data at 1-5 minute resolution, non-continuous, from Langmuir probe - cylindrical electrostatic probe

PublicationInfo

Authors

Brace, Larry H.

PublicationDate

2025-11-14 16:01:57Z

PublishedBy

Space Physics Data Facility

Contacts

	Role	Person	StartDate	StopDate	Note
1.	PrincipalInvestigator	spase://SMWG/Person/Larry.H.Brace
2.	GeneralContact	spase://SMWG/Person/Dieter.K.Bilitza

InformationURL

Name

HelioData

URL

https://helio.data.nasa.gov/dataset/Explorer31_CEP_PT60S

Description

The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more.

PriorIDs

spase://VSPO/NumericalData/P_EXPLR31_HDR_NETE

spase://VSPO/NumericalData/Explorer31/CEP/PT60S

AccessInformation

RepositoryID

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

Availability

Online

AccessRights

Open

RightsList

Rights

SchemeURI

https://spdx.org/licenses/

RightsIdentifierScheme

SPDX

RightsIdentifier

CC0-1.0

RightsURI

https://spdx.org/licenses/CC0-1.0.html

RightsName

Creative Commons Zero v1.0 Universal

Note

CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products

AccessURL

Name

FTPBrowser

URL

https://omniweb.gsfc.nasa.gov/ftpbrowser/explorer31.html

AccessURL

Name

FTPS from SPDF (not with most browsers)

URL

ftps://spdf.gsfc.nasa.gov/pub/data/explorer/explorer31/plasma_cep/

AccessURL

Name

HTTPS from SPDF

URL

https://spdf.gsfc.nasa.gov/pub/data/explorer/explorer31/plasma_cep/

Description

In CDF via HTTP from SPDF

Format

Text

ProviderProcessingLevel

CALIBRATED

InstrumentIDs

spase://SMWG/Instrument/Explorer31/CEP

MeasurementType

ThermalPlasma

TemporalDescription

TimeSpan

StartDate

1965-10-29 00:00:00Z

StopDate

1968-08-20 00:00:00Z

Cadence

PT60.00S

ObservedRegion

Earth.NearSurface