Data Access

PDS/PPI

Voyager 2 Uranus Magnetic Field in Uranian U1 Coordinates, Resampled, Version 1.0, 1.92 s Reduced Data Record (RDR) Data

Decker, Robert B.; Krimigis, Stamatios M. (2026). Voyager 2 Uranus Magnetic Field in Uranian U1 Coordinates, Resampled, Version 1.0, 1.92 s Reduced Data Record (RDR) Data [Data set]. Space Physics Data Facility; Planetary Data System. https://doi.org/10.48322/t9rb-0770 .

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/Voyager2/MAG/Uranus/PT1.92S

Description

Data Set Overview
=================

This Data Set includes Data from the Low Field Magnetometer (LFM) in the Solar Wind during the Uranus Encounter. The Encounter Data (1986-01-24T07:00:00 to 1986-01-25T04:00:00) have been averaged from the 60 ms Instrument Sampling Rate to a 1.92 s resampled Rate and are provided in the Uranus Longitude (U1) Coordinate System. Magnetometer Data in the Solar Wind are given in Heliographic Coordinates and are also available in a separate Data Set.

The Data Set consists of the following Columns:

1. ctime - Decimal Seconds since 1966-01-01T00:00:00.000
1. pdstime - ISO Standard Time Format
1. Spacecraft Clock Value - m65536
1. Spacecraft Clock Value - mod60
1. Spacecraft Clock Value - fds_line
1. mag_id - Magnetometer ID: 1=LFM, 2=HFM
1. Br - Radial Component
1. Bphi - Longitudinal Component
1. Btheta - Colatitudinal Component
1. Bmag - Magnitude of the averaged Magnetic Field Components
1. avg_Bmag - Average of the Magnitude of the raw Components
1. lambda - Magnetic Longitude, lambda=atan(Bt/Br)
1. delta - Magnetic Latitude, delta=asin(Bn/avg_Bmag)
1. rms_br - Br Pythagorean RMS Deviation of the Component Average
1. rms_bt - Bt Pythagorean RMS Deviation of the Component Average
1. rms_bn - Bn Pythagorean RMS Deviation of the Component Average
1. npts - Number of Points in the Average
1. Data Flag - A Character String which indicates Software or Spacecraft Hardware Intervention which reduces Confidence in the Data, Null Flags represent "good" Data

The U1 Coordinate System is a Non-inertial Spherical Coordinate System that rotates with Uranus with a Period of 17.24 h. The Magnetic Field Components in the U1 Coordinate System are:

Br - Radial Magnetic Field Component, along the Uranus to Spacecraft Line, positive away from Uranus
Bphi - East Longitudinal (U1) Magnetic Field Component
Btheta - Colatitudinal (U1) Magnetic Field Component

An ancillary Data File containing the derived Spacecraft Magnetic Field is provided with these Data at a 48 s Sample Rate. These Data provide Zero Level Offsets used in the Data Processing. Spacecraft Field Data is provided in Spacecraft Coordinates.

+--------------------------------------------------------+
| Parameter Characteristics | Value |

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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/Voyager2/MAG/Uranus/PT1.92S

NamingAuthority

NASA

ResourceType

NumericalData

ResourceHeader

ResourceName

Voyager 2 Uranus Magnetic Field in Uranian U1 Coordinates, Resampled, Version 1.0, 1.92 s Reduced Data Record (RDR) Data

DOI

https://doi.org/10.48322/t9rb-0770

ReleaseDate

2026-07-21 12:09:01Z

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 10:04:15Z

Note

Added PublicationInfo. ZCB

RevisionEvent

ReleaseDate

2026-06-12 18:47:02Z

Note

Added DOI. tlk

RevisionEvent

ReleaseDate

2026-06-26 13:31:26Z

Note

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

RevisionEvent

ReleaseDate

2026-07-21 12:09:01Z

Note

Added HelioData InformationURL. JWL

Description

Data Set Overview
=================

The Data Set consists of the following Columns:

1. ctime - Decimal Seconds since 1966-01-01T00:00:00.000
1. pdstime - ISO Standard Time Format
1. Spacecraft Clock Value - m65536
1. Spacecraft Clock Value - mod60
1. Spacecraft Clock Value - fds_line
1. mag_id - Magnetometer ID: 1=LFM, 2=HFM
1. Br - Radial Component
1. Bphi - Longitudinal Component
1. Btheta - Colatitudinal Component
1. Bmag - Magnitude of the averaged Magnetic Field Components
1. avg_Bmag - Average of the Magnitude of the raw Components
1. lambda - Magnetic Longitude, lambda=atan(Bt/Br)
1. delta - Magnetic Latitude, delta=asin(Bn/avg_Bmag)
1. rms_br - Br Pythagorean RMS Deviation of the Component Average
1. rms_bt - Bt Pythagorean RMS Deviation of the Component Average
1. rms_bn - Bn Pythagorean RMS Deviation of the Component Average
1. npts - Number of Points in the Average
1. Data Flag - A Character String which indicates Software or Spacecraft Hardware Intervention which reduces Confidence in the Data, Null Flags represent "good" Data

The U1 Coordinate System is a Non-inertial Spherical Coordinate System that rotates with Uranus with a Period of 17.24 h. The Magnetic Field Components in the U1 Coordinate System are:

Br - Radial Magnetic Field Component, along the Uranus to Spacecraft Line, positive away from Uranus
Bphi - East Longitudinal (U1) Magnetic Field Component
Btheta - Colatitudinal (U1) Magnetic Field Component

+--------------------------------------------------------+
| Parameter Characteristics | Value |

PublicationInfo

Authors

Decker, Robert B.; Krimigis, Stamatios M.

PublicationDate

2026-04-10 10:04:15Z

PublishedBy

Space Physics Data Facility; Planetary Data System

Contacts

	Role	Person
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-MAG-4-RDR-U1COORDS-1.92SEC-V1.0

URL

https://pds-ppi.igpp.ucla.edu/data/VG2-U-MAG-4-RDR-U1COORDS-1.92SEC-V1.0/AAREADME.TXT

Description

The Document describing the Contents of the Collection.

Language

InformationURL

Name

HelioData

URL

https://helio.data.nasa.gov/dataset/Voyager2_MAG_Uranus_PT1.92S

Description

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

PriorIDs

spase://VMO/NumericalData/Voyager2/MAG/Uranus/PT1.92S

spase://VSPO/NumericalData/Voyager2/MAG/Uranus/PT1.92S

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-MAG-4-RDR-U1COORDS-1.92SEC-V1.0

ProductKey

VG2-U-MAG-4-RDR-U1COORDS-1.92SEC-V1.0

Description

This Collection is archived with NASA Planetary Data System.

Language

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

1986-01-24 07:00:00.00Z

StopDate

1986-01-25 03:59:58.00Z

Cadence

PT1.92S

ObservedRegion

Uranus