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Data Access
PDS/PPI
Voyager 2 Neptune Planetary Radio Astronomy (PRA) Resampled Low-Frequency Receiver Band, Version 1.0, 48 s Summary Browse Data
var authors='Decker, Robert B.; Krimigis, Stamatios M.';
document.write(authors);
(2026).
Voyager 2 Neptune Planetary Radio Astronomy (PRA) Resampled Low-Frequency Receiver Band, Version 1.0, 48 s Summary Browse Data.
[Data set].
Space Physics Data Facility; Planetary Data System.
https://doi.org/10.48322/593x-jg56. Accessed on document.write(currentDateStr);.
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ResourceID
spase://NASA/NumericalData/Voyager2/PRA/Neptune/PT48S
Description
* Data Set Overview
* =================
This Data Set consists of edited Browse Data derived from an original Data Set obtained from the Voyager 2 Planetary Radio Astronomy (PRA) Instrument in the Vicinity of Neptune. Data are provided for 70 Instrument Channels covering the Range from 1.2 kHz to 1326 kHz in uniform 19.2 kHz Steps, each 1 kHz wide. Data are included for the Period 1989:000:00:00 through 1989:23:59:59.
* Parameters
* ==========
+-----------------------------------------------------------+
| Parameter Characteristics | Value |
-------------------------------------------------------------
| Sampling Parameter Name | TIME |
| Sampling Parameter Resolution | 0.001 SECONDS |
| Minimum Sampling Parameter | N/A |
| Maximum Sampling Parameter | N/A |
| Sampling Parameter Interval | 48.0 SECONDS |
| Minimum Available Sampling Interval | 12.0 SECONDS |
| Data Set Parameter Name | RADIO WAVE SPECTRUM |
| Noise Level | 2400 mB |
| Data Set Parameter Unit | MILLIBEL |
+-----------------------------------------------------------+
Radio Wave Spectrum: A Set of derived Parameters consisting of Power Fluxes at various contiguous Frequencies over a Range of Frequencies. The MKS Units are: Hz m^2.
* Processing
* ==========
In order to produce this Data Set from the original Raw PRA Data, several Steps have been taken:
* 1. The PRA operates in a Variety of Modes. Data from Modes in which the Receiver does not scan rapidly through its Frequency Range have been removed
* 2. The Data have been calibrated as best we know how
* 3. The Data have been split into Left Hand Circular (LHC) and Right Hand Circular (RHC) Components
* 4. The Data have been binned into 48 s Intervals
Thus, Values for a given Channel are separated in Time by an Increment of 48 s. Each 48 s Time Interval has associated with it a Value for LHC Polarization and one for RHC Polarization.
During Data Gaps, the entire Record is absent from the Data Set; that is, missing Records have not been zero-filled or otherwise marked. Bad Data within a Record is indicated by the Value Zero, which cannot otherwise occur.
Each Datum is returned as a 16 bit Quantity; it represents the mean Power received in the given Channel at the specified Time and Polarization. The returned Quantity is the Value in mB about a reference Flux Density. The Value of 0 mB represents a Voltage of 1 µV across the front End of the Receiver. To convert a returned Quantity to Flux, use the Formula:
flux = 7.0×10^-22 (10^(mB/1000)) W/(m^2 Hz)
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/PRA/Neptune/PT48S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
Voyager 2 Neptune Planetary Radio Astronomy (PRA) Resampled Low-Frequency Receiver Band, Version 1.0, 48 s Summary Browse Data
DOI
https://doi.org/10.48322/593x-jg56
ReleaseDate
2026-07-21 12:09:05Z
RevisionHistory
RevisionEvent
ReleaseDate
2020-07-07 21:16:00Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-12-04 13:32:41Z
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 19:17:29Z
Note
Added DOI. tlk
RevisionEvent
ReleaseDate
2026-06-26 13:31:32Z
Note
Add 'Z' to TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB
RevisionEvent
ReleaseDate
2026-07-21 12:09:05Z
Note
Added HelioData InformationURL. JWL
Description
* Data Set Overview
* =================
This Data Set consists of edited Browse Data derived from an original Data Set obtained from the Voyager 2 Planetary Radio Astronomy (PRA) Instrument in the Vicinity of Neptune. Data are provided for 70 Instrument Channels covering the Range from 1.2 kHz to 1326 kHz in uniform 19.2 kHz Steps, each 1 kHz wide. Data are included for the Period 1989:000:00:00 through 1989:23:59:59.
* Parameters
* ==========
+-----------------------------------------------------------+
| Parameter Characteristics | Value |
-------------------------------------------------------------
| Sampling Parameter Name | TIME |
| Sampling Parameter Resolution | 0.001 SECONDS |
| Minimum Sampling Parameter | N/A |
| Maximum Sampling Parameter | N/A |
| Sampling Parameter Interval | 48.0 SECONDS |
| Minimum Available Sampling Interval | 12.0 SECONDS |
| Data Set Parameter Name | RADIO WAVE SPECTRUM |
| Noise Level | 2400 mB |
| Data Set Parameter Unit | MILLIBEL |
+-----------------------------------------------------------+
Radio Wave Spectrum: A Set of derived Parameters consisting of Power Fluxes at various contiguous Frequencies over a Range of Frequencies. The MKS Units are: Hz m^2.
* Processing
* ==========
In order to produce this Data Set from the original Raw PRA Data, several Steps have been taken:
* 1. The PRA operates in a Variety of Modes. Data from Modes in which the Receiver does not scan rapidly through its Frequency Range have been removed
* 2. The Data have been calibrated as best we know how
* 3. The Data have been split into Left Hand Circular (LHC) and Right Hand Circular (RHC) Components
* 4. The Data have been binned into 48 s Intervals
Thus, Values for a given Channel are separated in Time by an Increment of 48 s. Each 48 s Time Interval has associated with it a Value for LHC Polarization and one for RHC Polarization.
During Data Gaps, the entire Record is absent from the Data Set; that is, missing Records have not been zero-filled or otherwise marked. Bad Data within a Record is indicated by the Value Zero, which cannot otherwise occur.
Each Datum is returned as a 16 bit Quantity; it represents the mean Power received in the given Channel at the specified Time and Polarization. The returned Quantity is the Value in mB about a reference Flux Density. The Value of 0 mB represents a Voltage of 1 µV across the front End of the Receiver. To convert a returned Quantity to Flux, use the Formula:
flux = 7.0×10^-22 (10^(mB/1000)) W/(m^2 Hz)
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-N-PRA-4-SUMM-BROWSE-48SEC-V1.0
URL
https://pds-ppi.igpp.ucla.edu/data/VG2-N-PRA-4-SUMM-BROWSE-48SEC-V1.0/AAREADME.TXT
Description
The Document describing the Contents of the Collection.
Language
En
InformationURL
Name
HelioData
URL
https://helio.data.nasa.gov/dataset/Voyager2_PRA_Neptune_PT48S
Description
The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more.
PriorIDs
spase://VMO/NumericalData/Voyager2/PRA/Neptune/PT48S
spase://VSPO/NumericalData/Voyager2/PRA/Neptune/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-N-PRA-4-SUMM-BROWSE-48SEC-V1.0
ProductKey
VG2-N-PRA-4-SUMM-BROWSE-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/PRA
MeasurementType
Waves.Passive
TemporalDescription
TimeSpan
StartDate
1989-08-18 00:00:00.00Z
StopDate
1989-09-06 23:59:59.00Z
Cadence
PT48S
ObservedRegion
Neptune