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Data Access
PDS/PPI
Voyager 2 Uranus Plasma Science (PLS) Derived Ion Fits, Version 1.0, 48 s Summary Data
var authors='Decker, Robert B.; Krimigis, Stamatios M.';
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(2026).
Voyager 2 Uranus Plasma Science (PLS) Derived Ion Fits, Version 1.0, 48 s Summary Data.
[Data set].
Space Physics Data Facility; Planetary Data System.
https://doi.org/10.48322/mp1k-7w19. Accessed on document.write(currentDateStr);.
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ResourceID
spase://NASA/NumericalData/Voyager2/PLS/Uranus/PT48S
Description
* Data Set Overview
* =================
This Data Set contains the total Ion Density obtained from Voyager 2 PLS Data (Voltage Range 10 eV/Q to 5950 eV/Q) at Uranus by fitting the measured Spectra with isotropic Maxwellian Distributions. It is a Subset of the Data Set VG2-U-PLS-5-RDR-IONFIT-48SEC. Up to three isotropic Proton Components (warm, hot, and intermediate) were used to match the Observations. These were then summed to give total Ion Density. This Determination does not include possible Plasma outside the PLS Energy Range; Limits on a cold Component can be derived in the Charging Region from 19:39 to 21:58 on Day 24. It is found that if a cold Component exists it will increase the total Ion Density by at most a Factor of Two. Uncertainties in Plasma Parameters are a Factor of Two in the Charging Region, less than 20% elsewhere. A complete Description of this Data Set is given in (McNutt et al., 1987) and (Selesnick and McNutt, 1987). Data Format: the first six Columns are Time Tags (6I4), the last Column is the total Ion Density in cm^-3 (E11.3). Flag Values of 1.0E32 indicate that the Parameter could not be obtained from the Data using the standard Analysis Technique. Additional Information about this Data Set and the Instrument which produced it can be found elsewhere in this Catalog. An Overview of the Data in this Data Set can be found in (McNutt et al., 1987) and (Selesnick and McNutt, 1987) and a complete Instrument Description can be found in (Bridge, 1977).
+----------------------------------------------------+
| Parameter Characteristics | Value |
------------------------------------------------------
| Sampling Parameter Name | TIME |
| Sampling Parameter Resolution | 48.000000 |
| Minimum Sampling Parameter | N/A |
| Maximum Sampling Parameter | N/A |
| Sampling Parameter Interval | 48.000000 |
| Minimum Available Sampling Int | 24.000000 |
| Sampling Parameter Unit | SECOND |
| Data Set Parameter Name | ION DENSITY |
| Noise Level | N/A |
| Data Set Parameter Unit | CM^-3 |
+----------------------------------------------------+
+----------------------------------------------------+
| Parameter Characteristics | Value |
------------------------------------------------------
| Sampling Parameter Name | TIME |
| Sampling Parameter Resolution | 48.000000 |
| Minimum Sampling Parameter | N/A |
| Maximum Sampling Parameter | N/A |
| Sampling Parameter Interval | 48.000000 |
| Minimum Available Sampling Int | 24.000000 |
| Sampling Parameter Unit | SECOND |
| Data Set Parameter Name | ION THERMAL SPEED |
| Noise Level | N/A |
| Data Set Parameter Unit | KM/S |
+----------------------------------------------------+
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/Voyager2/PLS/Uranus/PT48S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
Voyager 2 Uranus Plasma Science (PLS) Derived Ion Fits, Version 1.0, 48 s Summary Data
DOI
https://doi.org/10.48322/mp1k-7w19
ReleaseDate
2026-06-26 13:31:31Z
RevisionHistory
RevisionEvent
ReleaseDate
2020-07-07 21:16:00Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-12-04 13:32:40Z
Note
Added MetadataRightsList. Added ResourceType and NamingAuthority. Updated to 2.7.1. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. ZCB
RevisionEvent
ReleaseDate
2026-04-10 09:59:26Z
Note
Added new Contact(s). ZCB
RevisionEvent
ReleaseDate
2026-04-10 10:04:16Z
Note
Added PublicationInfo. ZCB
RevisionEvent
ReleaseDate
2026-06-12 19:17:28Z
Note
Added DOI. tlk
RevisionEvent
ReleaseDate
2026-06-26 13:31:31Z
Note
Add 'Z' to TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB
Description
* Data Set Overview
* =================
This Data Set contains the total Ion Density obtained from Voyager 2 PLS Data (Voltage Range 10 eV/Q to 5950 eV/Q) at Uranus by fitting the measured Spectra with isotropic Maxwellian Distributions. It is a Subset of the Data Set VG2-U-PLS-5-RDR-IONFIT-48SEC. Up to three isotropic Proton Components (warm, hot, and intermediate) were used to match the Observations. These were then summed to give total Ion Density. This Determination does not include possible Plasma outside the PLS Energy Range; Limits on a cold Component can be derived in the Charging Region from 19:39 to 21:58 on Day 24. It is found that if a cold Component exists it will increase the total Ion Density by at most a Factor of Two. Uncertainties in Plasma Parameters are a Factor of Two in the Charging Region, less than 20% elsewhere. A complete Description of this Data Set is given in (McNutt et al., 1987) and (Selesnick and McNutt, 1987). Data Format: the first six Columns are Time Tags (6I4), the last Column is the total Ion Density in cm^-3 (E11.3). Flag Values of 1.0E32 indicate that the Parameter could not be obtained from the Data using the standard Analysis Technique. Additional Information about this Data Set and the Instrument which produced it can be found elsewhere in this Catalog. An Overview of the Data in this Data Set can be found in (McNutt et al., 1987) and (Selesnick and McNutt, 1987) and a complete Instrument Description can be found in (Bridge, 1977).
+----------------------------------------------------+
| Parameter Characteristics | Value |
------------------------------------------------------
| Sampling Parameter Name | TIME |
| Sampling Parameter Resolution | 48.000000 |
| Minimum Sampling Parameter | N/A |
| Maximum Sampling Parameter | N/A |
| Sampling Parameter Interval | 48.000000 |
| Minimum Available Sampling Int | 24.000000 |
| Sampling Parameter Unit | SECOND |
| Data Set Parameter Name | ION DENSITY |
| Noise Level | N/A |
| Data Set Parameter Unit | CM^-3 |
+----------------------------------------------------+
+----------------------------------------------------+
| Parameter Characteristics | Value |
------------------------------------------------------
| Sampling Parameter Name | TIME |
| Sampling Parameter Resolution | 48.000000 |
| Minimum Sampling Parameter | N/A |
| Maximum Sampling Parameter | N/A |
| Sampling Parameter Interval | 48.000000 |
| Minimum Available Sampling Int | 24.000000 |
| Sampling Parameter Unit | SECOND |
| Data Set Parameter Name | ION THERMAL SPEED |
| Noise Level | N/A |
| Data Set Parameter Unit | KM/S |
+----------------------------------------------------+
PublicationInfo
Authors
Decker, Robert B.; Krimigis, Stamatios M.
PublicationDate
2026-04-10 10:04:16Z
PublishedBy
Space Physics Data Facility; Planetary Data System
Contacts
Role
Person
StartDate
StopDate
Note
1.
CoPI
spase://SMWG/Person/Robert.B.Decker
2.
PrincipalInvestigator
spase://SMWG/Person/Stamatios.M.Krimigis
3.
MetadataContact
spase://SMWG/Person/Todd.A.King
4.
MetadataContact
spase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
VG2-U-PLS-5-SUMM-IONBR-48SEC-V1.0
URL
https://pds-ppi.igpp.ucla.edu/data/VG2-U-PLS-5-SUMM-IONBR-48SEC-V1.0/AAREADME.TXT
Description
The Document describing the Contents of the Collection.
Language
En
PriorIDs
spase://VMO/NumericalData/Voyager2/PLS/Uranus/PT48S
spase://VSPO/NumericalData/Voyager2/PLS/Uranus/PT48S
AccessInformation
RepositoryID
spase://SMWG/Repository/PDS/PPI
Availability
Online
AccessRights
Open
AccessURL
Name
PDS/PPI
URL
https://pds-ppi.igpp.ucla.edu/search/view/?f=yes&id=pds://PPI/VG2-U-PLS-5-SUMM-IONBR-48SEC-V1.0
ProductKey
VG2-U-PLS-5-SUMM-IONBR-48SEC-V1.0
Description
This Collection is archived with NASA Planetary Data System.
Language
En
Format
Text.ASCII
Acknowledgement
NASA Planetary Plasma Interactions (PPI) Node of the Planetary Data System (PDS) and the Principal Investigator for the Data.
InstrumentIDs
spase://SMWG/Instrument/Voyager2/PLS
MeasurementType
ThermalPlasma
TemporalDescription
TimeSpan
StartDate
1986-01-24 15:01:48.45Z
StopDate
1986-01-24 19:55:24.43Z
Cadence
PT48S
ObservedRegion
Uranus