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Data Access
PDS/PPI
Voyager 2 Saturn Magnetic Field in Kronographic L1 Coordinates, Resampled, Version 1.1, 48 s Data
var authors='Decker, Robert B.; Krimigis, Stamatios M.';
document.write(authors);
(2026).
Voyager 2 Saturn Magnetic Field in Kronographic L1 Coordinates, Resampled, Version 1.1, 48 s Data.
[Data set].
Space Physics Data Facility; Planetary Data System.
https://doi.org/10.48322/n6qw-5m65. Accessed on document.write(currentDateStr);.
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ResourceID
spase://NASA/NumericalData/Voyager2/MAG/Saturn/PT48S
Description
* Data Set Overview
* =================
This Data Set includes Voyager 2 Saturn Encounter Magnetometer Data from the Low Field Magnetometer (LFM) resampled at a 48 s Sample Rate from the 60 ms Instrument Sampling Rate. Data Coverage begins in the Solar Wind and continues until at least the first Magnetopause Crossing. The Data are given in Kronographic (L1) Coordinates.
The Data Set consists of the following Columns:
* 1) Time - Universal Time of the Sample in the Format YYYY-MM-DDTHH:MM:SS.SSSZ
* 2) Spacecraft Clock Values - m65536:mod60:fds_line
* 3) mag_id - Magnetometer ID: 1=LFM, 2=HFM
* 4) Br - Radial Magnetic Field Component, Saturn to Spacecraft
* 5) Btheta - North/South Magnetic Field Component, positive southward, L1 Coordinates
* 6) Bphi - Azimuthal Magnetic Field Component, positive eastward, L1 Coordinates
* 7) Bmag - Magnitude of the averaged Magnetic Field Components
* 8) avg_Bmag - Average of the Magnetic Field Magnitudes
* 9) delta - Magnetic Latitude, delta=asin(Btheta/Bmag)
* 10) lambda - Magnetic Longitude, lambda=180.0-atan(Bphi/-Br)
* 11) rms_br - Br RMS Value
* 12) rms_bt - Bt RMS Value
* 13) rms_bn - Bn RMS Value
* 14) npts - Number of Points in the Average
All Magnetic Field Observations are measured in nT. All of the Magnetic Field Data are calibrated (see the Instrument Calibration Description for more Details). These Data are provided in a Saturn centered Spherical System (L1), based on the Saturn Longitude System (Voyager Measurements of the Rotation Period of Saturn's Magnetic Field, Desch and Kaiser, JGR, 8, 253, 1981). The Magnetic Field Components are:
* Br - Radial Magnetic Field Component, along the Saturn to Spacecraft Line, positive away from Saturn
* Btheta - North/South (L1) Magnetic Field Component, positive southward
* Bphi - Azimuthal (L1) Magnetic Field Component, positive eastward
+-----------------------------------------+
| Processing Characteristics | Value |
-------------------------------------------
| Processing Level ID | 4 |
| Software Flag | Y |
| Processing Start Time | 1988-09-21 |
+-----------------------------------------+
* Parameters
* ==========
+--------------------------------------------------------+
| Parameter Characteristics | Value |
----------------------------------------------------------
| Sampling Parameter Name | TIME |
| Data Set Parameter Name | MAGNETIC FIELD VECTOR |
| Sampling Parameter Resolution | 48.000000 |
| Minimum Sampling Parameter | 19770820120000.000000 |
| Maximum Sampling Parameter | UNK |
| Sampling Parameter Interval | 48.000000 |
| Minimum Available Sampling Int | 0.060000 |
| Data Set Parameter Unit | NANOTESLA |
| Noise Level | 0.006000 |
| Sampling Parameter Unit | SECOND |
+--------------------------------------------------------+
+-------------------------------------------------------------------------------------------------------------------------------------------------+
| Parameter Name | Resolution (Units) | Description |
---------------------------------------------------------------------------------------------------------------------------------------------------
| Time | 9.6 s | Time of the Sample (UT) in the Format YYYY-MM-DDTHH:MM:SS.SSSZ. The full Sampling Rate for |
| | | the Instrument is 0.06±0.006s. |
| | | |
| m65536, mod60, and fds_line | Counts | Spacecraft Clock mod 65536, mod 60, and fds line |
| | | |
| mag_id | N/A | Magnetometer ID |
| | | |
| Magnetic Field Components | nT | Measured Parameters equaling the Magnetic Field Strength along a particular Axis Direction. |
| (Br, Btheta, Bphi) | | Usually the three orthogonal Axis Components are measured by three different Sensors. |
| | | |
| Magnetic Field Vector | nT | Derived Parameter which combines the three orthogonal Magnetic Field Component Measurements. |
| (Bmag, avg_Bmag) | | |
| | | |
| delta | degrees | Magnetic Latitude: delta=asin(Btheta/Bmag) |
| | | |
| lambda | degrees | Magnetic Longitude: lambda=180.0-atan(Bphi/-Br) |
| | | |
| rms_Br, rms_Bt, and rms_Bn | nT | Pythagorean Root Mean Square Deviation of the Component Averages |
| | | |
| npts | Counts | The Number of Data Points in the Current Average |
+-------------------------------------------------------------------------------------------------------------------------------------------------+
* Source Instrument Parameters
* ============================
+------------------------------------------------------------+
| Parameter Characteristics | Value |
--------------------------------------------------------------
| Instrument Host ID | VG2 |
| Data Set Parameter Name | MAGNETIC FIELD VECTOR |
| Instrument Parameter Name | MAGNETIC FIELD COMPONENT |
| Important Instrument Parameters | 1 |
+------------------------------------------------------------+
+-----------------------------------------------------------------+
| Parameter Characteristics | Value |
-------------------------------------------------------------------
| Instrument Host ID | VG2 |
| Data Set Parameter Name | MAGNETIC FIELD VECTOR |
| Instrument Parameter Name | WAVE MAGNETIC FIELD INTENSITY |
| Important Instrument Parameters | 1 |
+-----------------------------------------------------------------+
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/MAG/Saturn/PT48S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
Voyager 2 Saturn Magnetic Field in Kronographic L1 Coordinates, Resampled, Version 1.1, 48 s Data
DOI
https://doi.org/10.48322/n6qw-5m65
ReleaseDate
2026-07-21 12:09:00Z
RevisionHistory
RevisionEvent
ReleaseDate
2020-07-07 21:15:59Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-12-04 13:32:38Z
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 09:59:24Z
Note
Added new Contact(s). ZCB
RevisionEvent
ReleaseDate
2026-04-10 10:04:14Z
Note
Added PublicationInfo. ZCB
RevisionEvent
ReleaseDate
2026-06-12 18:47:02Z
Note
Added DOI. tlk
RevisionEvent
ReleaseDate
2026-06-26 13:31:25Z
Note
Add 'Z' to TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB
RevisionEvent
ReleaseDate
2026-07-21 12:09:00Z
Note
Added HelioData InformationURL. JWL
Description
* Data Set Overview
* =================
This Data Set includes Voyager 2 Saturn Encounter Magnetometer Data from the Low Field Magnetometer (LFM) resampled at a 48 s Sample Rate from the 60 ms Instrument Sampling Rate. Data Coverage begins in the Solar Wind and continues until at least the first Magnetopause Crossing. The Data are given in Kronographic (L1) Coordinates.
The Data Set consists of the following Columns:
* 1) Time - Universal Time of the Sample in the Format YYYY-MM-DDTHH:MM:SS.SSSZ
* 2) Spacecraft Clock Values - m65536:mod60:fds_line
* 3) mag_id - Magnetometer ID: 1=LFM, 2=HFM
* 4) Br - Radial Magnetic Field Component, Saturn to Spacecraft
* 5) Btheta - North/South Magnetic Field Component, positive southward, L1 Coordinates
* 6) Bphi - Azimuthal Magnetic Field Component, positive eastward, L1 Coordinates
* 7) Bmag - Magnitude of the averaged Magnetic Field Components
* 8) avg_Bmag - Average of the Magnetic Field Magnitudes
* 9) delta - Magnetic Latitude, delta=asin(Btheta/Bmag)
* 10) lambda - Magnetic Longitude, lambda=180.0-atan(Bphi/-Br)
* 11) rms_br - Br RMS Value
* 12) rms_bt - Bt RMS Value
* 13) rms_bn - Bn RMS Value
* 14) npts - Number of Points in the Average
All Magnetic Field Observations are measured in nT. All of the Magnetic Field Data are calibrated (see the Instrument Calibration Description for more Details). These Data are provided in a Saturn centered Spherical System (L1), based on the Saturn Longitude System (Voyager Measurements of the Rotation Period of Saturn's Magnetic Field, Desch and Kaiser, JGR, 8, 253, 1981). The Magnetic Field Components are:
* Br - Radial Magnetic Field Component, along the Saturn to Spacecraft Line, positive away from Saturn
* Btheta - North/South (L1) Magnetic Field Component, positive southward
* Bphi - Azimuthal (L1) Magnetic Field Component, positive eastward
+-----------------------------------------+
| Processing Characteristics | Value |
-------------------------------------------
| Processing Level ID | 4 |
| Software Flag | Y |
| Processing Start Time | 1988-09-21 |
+-----------------------------------------+
* Parameters
* ==========
+--------------------------------------------------------+
| Parameter Characteristics | Value |
----------------------------------------------------------
| Sampling Parameter Name | TIME |
| Data Set Parameter Name | MAGNETIC FIELD VECTOR |
| Sampling Parameter Resolution | 48.000000 |
| Minimum Sampling Parameter | 19770820120000.000000 |
| Maximum Sampling Parameter | UNK |
| Sampling Parameter Interval | 48.000000 |
| Minimum Available Sampling Int | 0.060000 |
| Data Set Parameter Unit | NANOTESLA |
| Noise Level | 0.006000 |
| Sampling Parameter Unit | SECOND |
+--------------------------------------------------------+
+-------------------------------------------------------------------------------------------------------------------------------------------------+
| Parameter Name | Resolution (Units) | Description |
---------------------------------------------------------------------------------------------------------------------------------------------------
| Time | 9.6 s | Time of the Sample (UT) in the Format YYYY-MM-DDTHH:MM:SS.SSSZ. The full Sampling Rate for |
| | | the Instrument is 0.06±0.006s. |
| | | |
| m65536, mod60, and fds_line | Counts | Spacecraft Clock mod 65536, mod 60, and fds line |
| | | |
| mag_id | N/A | Magnetometer ID |
| | | |
| Magnetic Field Components | nT | Measured Parameters equaling the Magnetic Field Strength along a particular Axis Direction. |
| (Br, Btheta, Bphi) | | Usually the three orthogonal Axis Components are measured by three different Sensors. |
| | | |
| Magnetic Field Vector | nT | Derived Parameter which combines the three orthogonal Magnetic Field Component Measurements. |
| (Bmag, avg_Bmag) | | |
| | | |
| delta | degrees | Magnetic Latitude: delta=asin(Btheta/Bmag) |
| | | |
| lambda | degrees | Magnetic Longitude: lambda=180.0-atan(Bphi/-Br) |
| | | |
| rms_Br, rms_Bt, and rms_Bn | nT | Pythagorean Root Mean Square Deviation of the Component Averages |
| | | |
| npts | Counts | The Number of Data Points in the Current Average |
+-------------------------------------------------------------------------------------------------------------------------------------------------+
* Source Instrument Parameters
* ============================
+------------------------------------------------------------+
| Parameter Characteristics | Value |
--------------------------------------------------------------
| Instrument Host ID | VG2 |
| Data Set Parameter Name | MAGNETIC FIELD VECTOR |
| Instrument Parameter Name | MAGNETIC FIELD COMPONENT |
| Important Instrument Parameters | 1 |
+------------------------------------------------------------+
+-----------------------------------------------------------------+
| Parameter Characteristics | Value |
-------------------------------------------------------------------
| Instrument Host ID | VG2 |
| Data Set Parameter Name | MAGNETIC FIELD VECTOR |
| Instrument Parameter Name | WAVE MAGNETIC FIELD INTENSITY |
| Important Instrument Parameters | 1 |
+-----------------------------------------------------------------+
PublicationInfo
Authors
Decker, Robert B.; Krimigis, Stamatios M.
PublicationDate
2026-04-10 10:04:14Z
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-S-MAG-4-SUMM-L1COORDS-48SEC-V1.1
URL
https://pds-ppi.igpp.ucla.edu/data/VG2-S-MAG-4-SUMM-L1COORDS-48SEC-V1.1/AAREADME.TXT
Description
The Document describing the Contents of the Collection.
Language
En
InformationURL
Name
HelioData
URL
https://helio.data.nasa.gov/dataset/Voyager2_MAG_Saturn_PT48S
Description
The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more.
PriorIDs
spase://VMO/NumericalData/Voyager2/MAG/Saturn/PT48S
spase://VSPO/NumericalData/Voyager2/MAG/Saturn/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-S-MAG-4-SUMM-L1COORDS-48SEC-V1.1
ProductKey
VG2-S-MAG-4-SUMM-L1COORDS-48SEC-V1.1
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/MAG
MeasurementType
MagneticField
TemporalDescription
TimeSpan
StartDate
1981-08-23 10:34:23.64Z
StopDate
1981-08-29 23:59:11.07Z
Cadence
PT48S
ObservedRegion
Saturn