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Pioneer 11 Plasma 1-hr data
var authors='Smith, Edward J.';
document.write(authors);
(2026).
Pioneer 11 Plasma 1-hr data.
[Data set].
Space Physics Data Facility.
https://doi.org/10.48322/sfyk-7s04. Accessed on document.write(currentDateStr);.
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ResourceID
spase://NASA/NumericalData/Pioneer11/PLS/PT60M
Description
This data set consists of hourly resolution data in ASCII format from the Pioneer 11 Plasma Analyzer. It contains five types of data:
'REDR' and EDR data, Spectral' data, 'summary' (high resolution) parameter data, hourly averaged parameter data, and trajectory data. The plasma bulk parameters (bulk velocity, proton number density, proton temperature, and flow angles) were obtained using one of three processing schemes described in the data set documentation. Hourly averaged data files were created by averaging every valid parameter in each hour, regardless of the processing scheme used to derive it. Each plasma data file contains a header followed by data records. The filename format is p10_XX_YYh.asc where XX and YY are the start and end years of data in the file. Each data record contains the spacecraft ID (SCID), year, day of year, and time of day in hours, followed by the bulk velocity, number density, temperature, and where appropriate, the flow angles. Speeds are given in km/s, number densities are given in #/cc, temperatures are given in K, and flow angles are given in degrees. Prior to day Jan. 31, 1989, all directions are given in a spacecraft-centered ecliptic system, in which the E/W angle is positive in the direction of planetary rotation while a N/S angle of zero means that the solar wind flow is parallel to the plane of the ecliptic. After Jan. 31, 1989 the flow directions are given with respect to a RTN heliographic system for which the R component is radially outward from the Sun, T is in the direction of planetary orbital motion around the Sun, and N is orthogonal (RxT) to R and T.
Metadata Rights
CC0-1.0:
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions. The actual data/software may be subject to a different license.
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Details
Version:2.7.1
NumericalData
ResourceID
spase://NASA/NumericalData/Pioneer11/PLS/PT60M
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
Pioneer 11 Plasma 1-hr data
DOI
https://doi.org/10.48322/sfyk-7s04
ReleaseDate
2026-06-26 13:26:14Z
RevisionHistory
RevisionEvent
ReleaseDate
2020-07-07 21:15:08Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-12-04 13:30:56Z
Note
Added MetadataRightsList and RightsList(s). Added ResourceType and NamingAuthority. Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-04-10 09:58:47Z
Note
Added new Contact(s). ZCB
RevisionEvent
ReleaseDate
2026-04-10 10:03:45Z
Note
Added PublicationInfo. ZCB
RevisionEvent
ReleaseDate
2026-04-30 16:34:10Z
Note
Added DOI. tlk
RevisionEvent
ReleaseDate
2026-06-26 13:26:14Z
Note
Add 'Z' to TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB
Description
This data set consists of hourly resolution data in ASCII format from the Pioneer 11 Plasma Analyzer. It contains five types of data:
'REDR' and EDR data, Spectral' data, 'summary' (high resolution) parameter data, hourly averaged parameter data, and trajectory data. The plasma bulk parameters (bulk velocity, proton number density, proton temperature, and flow angles) were obtained using one of three processing schemes described in the data set documentation. Hourly averaged data files were created by averaging every valid parameter in each hour, regardless of the processing scheme used to derive it. Each plasma data file contains a header followed by data records. The filename format is p10_XX_YYh.asc where XX and YY are the start and end years of data in the file. Each data record contains the spacecraft ID (SCID), year, day of year, and time of day in hours, followed by the bulk velocity, number density, temperature, and where appropriate, the flow angles. Speeds are given in km/s, number densities are given in #/cc, temperatures are given in K, and flow angles are given in degrees. Prior to day Jan. 31, 1989, all directions are given in a spacecraft-centered ecliptic system, in which the E/W angle is positive in the direction of planetary rotation while a N/S angle of zero means that the solar wind flow is parallel to the plane of the ecliptic. After Jan. 31, 1989 the flow directions are given with respect to a RTN heliographic system for which the R component is radially outward from the Sun, T is in the direction of planetary orbital motion around the Sun, and N is orthogonal (RxT) to R and T.
PublicationInfo
Authors
Smith, Edward J.
PublicationDate
2026-04-10 10:03:45Z
PublishedBy
Space Physics Data Facility
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/Edward.J.Smith
2.
GeneralContact
spase://SMWG/Person/Paul.R.Gazis
PriorIDs
spase://VSPO/NumericalData/P_PION11_HDR_PLASMA_1HR
spase://VSPO/NumericalData/Pioneer11/PLS/PT60M
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
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/pioneer/pioneer11/plasma/hour/
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/pioneer/pioneer11/plasma/hour/
Description
In CDF via HTTP from SPDF
Format
Text
ProviderProcessingLevel
CALIBRATED
InstrumentIDs
spase://SMWG/Instrument/Pioneer11/PLS
MeasurementType
ThermalPlasma
TemporalDescription
TimeSpan
StartDate
1973-04-06 00:00:00Z
StopDate
1976-12-31 00:00:00Z
Cadence
PT60M
ObservedRegion
Heliosphere.Outer