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Data Access
PDS/PPI
Voyager 2 Jupiter Ephemeris in System III (1965) Coordinates, Version 1.1, 96 s Browse Data
var authors='Decker, Robert B.; Krimigis, Stamatios M.';
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(2026).
Voyager 2 Jupiter Ephemeris in System III (1965) Coordinates, Version 1.1, 96 s Browse Data.
[Data set].
Space Physics Data Facility; Planetary Data System.
https://doi.org/10.48322/1vzh-bq32. Accessed on document.write(currentDateStr);.
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ResourceID
spase://NASA/NumericalData/Voyager2/Ephemeris/Jupiter/PT96S
Description
* Data Set Overview
* =================
* Version 1.1
* ===========
The SEDR based Data provided as Part of this Data Set were originally reviewed and archived with the NSSDC and PDS as Version 1.0 (DATA_SET_ID=VG2-J-POS-4-48.0SEC). Version 1.1 includes additional Columns not present in the previous Version, 96 s Time Samples rather than 48 s Time Samples, Times converted to "PDS Style" or "Zulu Time", and upgrading of PDS Labels and Templates to Version 3.4. The SPICE based Data that are also Part of this Data Set were not previously archived with the PDS. This Version 1.1 Data Set replaces previously archived Versions.
* Data Set Description
* ====================
This Data Set consists of Voyager 2 Jupiter Encounter Ephemeris Data in System III (1965) left-handed Coordinates covering the Period from 1979-07-05 to 1979-08-12.
Two Versions, both covering the same Time Period, but containing slightly different Data, are provided. One Version was generated by the Voyager Magnetometer (MAG) Team from the Voyager 2 SEDR, the other by the PDS/PPI Node using the VG2_JUP.BSP and PCK00003.TCP SPICE Kernels.
Due to Inaccuracies in Voyager SEDR, as well as Changes in the Values of some Key Parameters (e.g., the Radius of Jupiter) the Timing is improved for the SPICE generated Data. However, since much of the original Analysis was based upon the SEDR generated Ephemeris, these Data have been included as well.
* SEDR Generated Ephemeris
* ========================
+------------------------------------------------------+
| Parameter Characteristics | Value |
--------------------------------------------------------
| Instrument P.I. | N/A |
| Data Supplier | NSSDC |
| Data Sampling Rate | 96 SECONDS |
| Data Set Start Time | 1979-07-05T00:00:47.269Z |
| Data Set Stop Time | 1979-08-12T16:54:20.608Z |
+------------------------------------------------------+
* SPICE Generated Ephemeris
* =========================
+------------------------------------------------------+
| Parameter Characteristics | Value |
--------------------------------------------------------
| Instrument P.I. | N/A |
| Data Supplier | S. JOY |
| Data Sampling Rate | 48 SECONDS |
| Data Set Start Time | 1979-07-05T00:00:47.269Z |
| Data Set Stop Time | 1979-08-12T16:55:08.608Z |
+------------------------------------------------------+
* Parameters
* ==========
* SEDR Generated Ephemeris
* ========================
+----------------------------------------------------------------------------------------------------------------------------------------------------+
| Parameter Name | Resolution/Units | Description |
------------------------------------------------------------------------------------------------------------------------------------------------------
| time | 96 s | Time of the Sample (UT) in the Format YYYY-MM-DDTHH:MM:SS.SSSZ |
| m65536 | counts | Spacecraft Clock Counts, mod 65536 |
| mod60 | counts | Spacecraft Clock Counts, mod 60 |
| fds_line | counts | Spacecraft Clock Counts, fds_line |
| sc_x | R[J] | Jovicentric (System III) Spacecraft Position, Cartesian Coordinates, X Component |
| sc_y | R[J] | Jovicentric (System III) Spacecraft Position, Cartesian Coordinates, Y Component |
| sc_z | R[J] | Jovicentric (System III) Spacecraft Position, Cartesian Coordinates, Z Component |
| vel_x | km/s | Jovicentric (System III) Spacecraft Velocity, Cartesian Coordinates, X Component |
| vel_y | km/s | Jovicentric (System III) Spacecraft Velocity, Cartesian Coordinates, Y Component |
| vel_z | km/s | Jovicentric (System III) Spacecraft Velocity, Cartesian Coordinates, Z Component |
| sc_r | AU | Jovicentric (System III) Spacecraft Position, Spherical Coordinates, Radial Distance (Range) |
| sc_lat | degrees | Jovicentric (System III) Spacecraft Position, Spherical Coordinates, Latitude |
| sc_lon | degrees | Jovicentric (System III) Spacecraft Position, Spherical Coordinates, Longitude |
| CartSys3_to_SphSys3 | | Cartesian System III to Spherical System III Coordinates Rotation Matrix containing nine 1PE15.8 Elements |
| SC_to_CartSys3 | | Payload (Spacecraft) to Cartesian System III Coordinates Rotation Matrix containing nine 1PE15.8 Elements |
| SC_to_SphSys3 | | Payload (Spacecraft) to Spherical System III Coordinates Rotation Matrix containing nine 1PE15.8 Elements |
+----------------------------------------------------------------------------------------------------------------------------------------------------+
* SPICE Generated Ephemeris
* =========================
+-----------------------------------------------------------------------------------------------------------------------------------------------------+
| Parameter Name | Resolution/Units | Description |
-------------------------------------------------------------------------------------------------------------------------------------------------------
| time | 48 s | Time of the Sample (UT) in the Format YYYY-MM-DDTHH:MM:SS.SSSZ |
| R | AU | Jovicentric (System III 1965) Spacecraft Position, Spherical Coordinates, Radial Distance (Range) |
| LAT | degrees | Jovicentric (System III 1965) Spacecraft Position, Spherical Coordinates, Latitude |
| LON | degrees | Jovicentric (System III 1965) Spacecraft Position, Spherical Coordinates, Longitude |
| LocTime | hours | Angular Separation between the Meridian containing the Sun and the one containing the Spacecraft converted |
| | | converted to a Time. The Sun Meridian is defined to be Noon (12.000), with Midnight (0.000) opposite it. |
| | | Dawn (6.000) and Dusk (18.000) are where the Sun rises and sets according to the Rotation of the Planet. |
+-----------------------------------------------------------------------------------------------------------------------------------------------------+
* Coordinate System
* =================
The System III (1965) is a Jovicentric left-handed Coordinate System defined such that Longitude increases with Time as viewed by a stationary Remote Observer.
* Jovicentric (Jupiter Fixed) Cartesian Coordinates
* =================================================
- X points along the Jupiter-Sun Line in the Solar Equatorial Plane, positive towards the Sun
- Y completes the right-handed Set, Y = X ⨯ Z
- Z points along the Spin Axis of Jupiter
* Jovicentric System III (1965) Spherical Coordinates
* ===================================================
- R gives the Jupiter to Spacecraft Range, positive away from Jupiter
- LAT completes the left-handed, Orthogonal Set
- LON gives the System III (1965) East Longitude with Longitude increasing eastward from a specific Jovian Prime Meridian
SPICE Ephemeris were generated using the current Definition of the Jovian Radius, 71,492 km. The Spin Rate used in generating these Data is the same as that used for System III (1965), 870.536° per Day.
* Data Coverage
* =============
+------------------------------------------------------------------------------------+
| Filename | Records | Start Date and Time | Stop Date and Time |
--------------------------------------------------------------------------------------
| Volume ID: VG_1502 | | | |
| SEDR_S3_96S.TAB | 31288 | 1979-07-05T00:00:47.269Z | 1979-08-12T16:54:20.608Z |
| SPICE_S3_48S.TAB | 62578 | 1979-07-05T00:00:47.269Z | 1979-08-12T16:55:08.608Z |
+------------------------------------------------------------------------------------+
Metadata Rights
CC0-1.0:
Creative Commons Zero v1.0 Universal
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Version:2.7.1
NumericalData
ResourceID
spase://NASA/NumericalData/Voyager2/Ephemeris/Jupiter/PT96S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
Voyager 2 Jupiter Ephemeris in System III (1965) Coordinates, Version 1.1, 96 s Browse Data
DOI
https://doi.org/10.48322/1vzh-bq32
ReleaseDate
2026-07-21 12:08:52Z
RevisionHistory
RevisionEvent
ReleaseDate
2020-07-07 21:15:55Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-12-04 13:32:33Z
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 09:59:19Z
Note
Added new Contact(s). ZCB
RevisionEvent
ReleaseDate
2026-04-10 10:04:10Z
Note
Added PublicationInfo. ZCB
RevisionEvent
ReleaseDate
2026-06-11 16:09:59Z
Note
Added DOI. tlk
RevisionEvent
ReleaseDate
2026-06-26 13:31:10Z
Note
Add 'Z' to TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB
RevisionEvent
ReleaseDate
2026-07-21 12:08:52Z
Note
Added HelioData InformationURL. JWL
Description
* Data Set Overview
* =================
* Version 1.1
* ===========
The SEDR based Data provided as Part of this Data Set were originally reviewed and archived with the NSSDC and PDS as Version 1.0 (DATA_SET_ID=VG2-J-POS-4-48.0SEC). Version 1.1 includes additional Columns not present in the previous Version, 96 s Time Samples rather than 48 s Time Samples, Times converted to "PDS Style" or "Zulu Time", and upgrading of PDS Labels and Templates to Version 3.4. The SPICE based Data that are also Part of this Data Set were not previously archived with the PDS. This Version 1.1 Data Set replaces previously archived Versions.
* Data Set Description
* ====================
This Data Set consists of Voyager 2 Jupiter Encounter Ephemeris Data in System III (1965) left-handed Coordinates covering the Period from 1979-07-05 to 1979-08-12.
Two Versions, both covering the same Time Period, but containing slightly different Data, are provided. One Version was generated by the Voyager Magnetometer (MAG) Team from the Voyager 2 SEDR, the other by the PDS/PPI Node using the VG2_JUP.BSP and PCK00003.TCP SPICE Kernels.
Due to Inaccuracies in Voyager SEDR, as well as Changes in the Values of some Key Parameters (e.g., the Radius of Jupiter) the Timing is improved for the SPICE generated Data. However, since much of the original Analysis was based upon the SEDR generated Ephemeris, these Data have been included as well.
* SEDR Generated Ephemeris
* ========================
+------------------------------------------------------+
| Parameter Characteristics | Value |
--------------------------------------------------------
| Instrument P.I. | N/A |
| Data Supplier | NSSDC |
| Data Sampling Rate | 96 SECONDS |
| Data Set Start Time | 1979-07-05T00:00:47.269Z |
| Data Set Stop Time | 1979-08-12T16:54:20.608Z |
+------------------------------------------------------+
* SPICE Generated Ephemeris
* =========================
+------------------------------------------------------+
| Parameter Characteristics | Value |
--------------------------------------------------------
| Instrument P.I. | N/A |
| Data Supplier | S. JOY |
| Data Sampling Rate | 48 SECONDS |
| Data Set Start Time | 1979-07-05T00:00:47.269Z |
| Data Set Stop Time | 1979-08-12T16:55:08.608Z |
+------------------------------------------------------+
* Parameters
* ==========
* SEDR Generated Ephemeris
* ========================
+----------------------------------------------------------------------------------------------------------------------------------------------------+
| Parameter Name | Resolution/Units | Description |
------------------------------------------------------------------------------------------------------------------------------------------------------
| time | 96 s | Time of the Sample (UT) in the Format YYYY-MM-DDTHH:MM:SS.SSSZ |
| m65536 | counts | Spacecraft Clock Counts, mod 65536 |
| mod60 | counts | Spacecraft Clock Counts, mod 60 |
| fds_line | counts | Spacecraft Clock Counts, fds_line |
| sc_x | R[J] | Jovicentric (System III) Spacecraft Position, Cartesian Coordinates, X Component |
| sc_y | R[J] | Jovicentric (System III) Spacecraft Position, Cartesian Coordinates, Y Component |
| sc_z | R[J] | Jovicentric (System III) Spacecraft Position, Cartesian Coordinates, Z Component |
| vel_x | km/s | Jovicentric (System III) Spacecraft Velocity, Cartesian Coordinates, X Component |
| vel_y | km/s | Jovicentric (System III) Spacecraft Velocity, Cartesian Coordinates, Y Component |
| vel_z | km/s | Jovicentric (System III) Spacecraft Velocity, Cartesian Coordinates, Z Component |
| sc_r | AU | Jovicentric (System III) Spacecraft Position, Spherical Coordinates, Radial Distance (Range) |
| sc_lat | degrees | Jovicentric (System III) Spacecraft Position, Spherical Coordinates, Latitude |
| sc_lon | degrees | Jovicentric (System III) Spacecraft Position, Spherical Coordinates, Longitude |
| CartSys3_to_SphSys3 | | Cartesian System III to Spherical System III Coordinates Rotation Matrix containing nine 1PE15.8 Elements |
| SC_to_CartSys3 | | Payload (Spacecraft) to Cartesian System III Coordinates Rotation Matrix containing nine 1PE15.8 Elements |
| SC_to_SphSys3 | | Payload (Spacecraft) to Spherical System III Coordinates Rotation Matrix containing nine 1PE15.8 Elements |
+----------------------------------------------------------------------------------------------------------------------------------------------------+
* SPICE Generated Ephemeris
* =========================
+-----------------------------------------------------------------------------------------------------------------------------------------------------+
| Parameter Name | Resolution/Units | Description |
-------------------------------------------------------------------------------------------------------------------------------------------------------
| time | 48 s | Time of the Sample (UT) in the Format YYYY-MM-DDTHH:MM:SS.SSSZ |
| R | AU | Jovicentric (System III 1965) Spacecraft Position, Spherical Coordinates, Radial Distance (Range) |
| LAT | degrees | Jovicentric (System III 1965) Spacecraft Position, Spherical Coordinates, Latitude |
| LON | degrees | Jovicentric (System III 1965) Spacecraft Position, Spherical Coordinates, Longitude |
| LocTime | hours | Angular Separation between the Meridian containing the Sun and the one containing the Spacecraft converted |
| | | converted to a Time. The Sun Meridian is defined to be Noon (12.000), with Midnight (0.000) opposite it. |
| | | Dawn (6.000) and Dusk (18.000) are where the Sun rises and sets according to the Rotation of the Planet. |
+-----------------------------------------------------------------------------------------------------------------------------------------------------+
* Coordinate System
* =================
The System III (1965) is a Jovicentric left-handed Coordinate System defined such that Longitude increases with Time as viewed by a stationary Remote Observer.
* Jovicentric (Jupiter Fixed) Cartesian Coordinates
* =================================================
- X points along the Jupiter-Sun Line in the Solar Equatorial Plane, positive towards the Sun
- Y completes the right-handed Set, Y = X ⨯ Z
- Z points along the Spin Axis of Jupiter
* Jovicentric System III (1965) Spherical Coordinates
* ===================================================
- R gives the Jupiter to Spacecraft Range, positive away from Jupiter
- LAT completes the left-handed, Orthogonal Set
- LON gives the System III (1965) East Longitude with Longitude increasing eastward from a specific Jovian Prime Meridian
SPICE Ephemeris were generated using the current Definition of the Jovian Radius, 71,492 km. The Spin Rate used in generating these Data is the same as that used for System III (1965), 870.536° per Day.
* Data Coverage
* =============
+------------------------------------------------------------------------------------+
| Filename | Records | Start Date and Time | Stop Date and Time |
--------------------------------------------------------------------------------------
| Volume ID: VG_1502 | | | |
| SEDR_S3_96S.TAB | 31288 | 1979-07-05T00:00:47.269Z | 1979-08-12T16:54:20.608Z |
| SPICE_S3_48S.TAB | 62578 | 1979-07-05T00:00:47.269Z | 1979-08-12T16:55:08.608Z |
+------------------------------------------------------------------------------------+
PublicationInfo
Authors
Decker, Robert B.; Krimigis, Stamatios M.
PublicationDate
2026-04-10 10:04:10Z
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-J-POS-6-SUMM-S3COORDS-V1.1
URL
https://pds-ppi.igpp.ucla.edu/data/VG2-J-POS-6-SUMM-S3COORDS-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_Ephemeris_Jupiter_PT96S
Description
The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more.
PriorIDs
spase://VMO/NumericalData/Voyager2/Ephemeris/Jupiter/PT96S
spase://VSPO/NumericalData/Voyager2/Ephemeris/Jupiter/PT96S
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-J-POS-6-SUMM-S3COORDS-V1.1
ProductKey
VG2-J-POS-6-SUMM-S3COORDS-V1.1
Description
This Collection is archived with the NASA Planetary Data System.
Language
En
Format
Text.ASCII
Acknowledgement
Please acknowledge the NASA Planetary Plasma Interactions (PPI) Node of the Planetary Data System (PDS) and the P.I. for the Data.
InstrumentIDs
spase://SMWG/Instrument/Voyager2/Ephemeris
MeasurementType
Ephemeris
TemporalDescription
TimeSpan
StartDate
1979-07-05 00:00:47.26Z
StopDate
1979-08-12 16:54:20.60Z
Cadence
PT96S
ObservedRegion
Jupiter