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Voyager 2 Spacecraft Positions

ResourceID
spase://NASA/NumericalData/Voyager2/Ephemeris/P1D

Description

Voyager 2 spacecraft positions generated from data at HelioWeb (cohoweb.gsfc.nasa.gov/helios/heli.html) These data were obtained from running the program HELICOOR in the public directory NSSDCA::ANON_DIR:[ACTIVE.HELIO]. These data are based on predicted trajectories calculated with the GTDS code by the NSSDC Satellite Situation Center and converted to solar ecliptic and heliographic coordinates by the HELIOCOOR program. The HELICOOR code was written by R. Parthasarathy. The program GENTRJCON added the HILLON longitude. Note that the solar ecliptic coordinates are given with respect to true equinox and ecliptic of date. The solar ascending node was located at ecliptic longitude +74.367 degrees as of 1 Jan. 1900 at 1200 UT; this longitude increases by 1.4 degrees/century.

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Details

Version:2.7.0

NumericalData

ResourceID
spase://NASA/NumericalData/Voyager2/Ephemeris/P1D
ResourceHeader
ResourceName
Voyager 2 Spacecraft Positions
ReleaseDate
2025-08-05 13:12:55Z
RevisionHistory
RevisionEvent
ReleaseDate
2020-07-07 21:15:56Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-08-05 13:12:55Z
Note
Added ObservedRegion(s). Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to value in Version tag. ZCB
Description

Voyager 2 spacecraft positions generated from data at HelioWeb (cohoweb.gsfc.nasa.gov/helios/heli.html) These data were obtained from running the program HELICOOR in the public directory NSSDCA::ANON_DIR:[ACTIVE.HELIO]. These data are based on predicted trajectories calculated with the GTDS code by the NSSDC Satellite Situation Center and converted to solar ecliptic and heliographic coordinates by the HELIOCOOR program. The HELICOOR code was written by R. Parthasarathy. The program GENTRJCON added the HILLON longitude. Note that the solar ecliptic coordinates are given with respect to true equinox and ecliptic of date. The solar ascending node was located at ecliptic longitude +74.367 degrees as of 1 Jan. 1900 at 1200 UT; this longitude increases by 1.4 degrees/century.

Contacts
RolePersonStartDateStopDateNote
1.MetadataContactspase://SMWG/Person/Adam.Szabo
2.MetadataContactspase://SMWG/Person/Todd.A.King
PriorIDs
spase://VHO/NumericalData/Voyager2/Ephemeris/P1D
spase://VSPO/NumericalData/Voyager2/Ephemeris/P1D
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/VHO-VMO
Availability
Online
AccessRights
Open
AccessURL
Name
VHO Repository
URL
https://vho.nasa.gov/mission/voyager/2/ephemeris/
Description

VHO holdings of Voyager 2 ephemeris

Format
Text
Encoding
ASCII
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Online
AccessRights
Open
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/voyager/voyager2/traj/ssc/
Description

In CDF via FTP from SPDF

AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/voyager/voyager2/traj/ssc/
Description

In CDF via HTTP from SPDF

Format
Text
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-SS-POS-6-1DAY-V1.0
ProductKey
VG2-SS-POS-6-1DAY-V1.0
Description

This collection is archived with NASA's Planetary Data System.

Language
En
Format
Text.ASCII
Acknowledgement
NASA's 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
1977-08-25 00:00:00Z
StopDate
2015-12-31 23:59:59Z
Cadence
P1D
ObservedRegion
Neptune.Triton
ObservedRegion
Neptune.Proteus
ObservedRegion
Neptune.Magnetosphere
ObservedRegion
Neptune
ObservedRegion
Uranus.Umbriel
ObservedRegion
Uranus.Titania
ObservedRegion
Uranus.Oberon
ObservedRegion
Uranus.Miranda
ObservedRegion
Uranus.Ariel
ObservedRegion
Uranus.Magnetosphere
ObservedRegion
Uranus
ObservedRegion
Heliosphere.Heliosheath
ObservedRegion
Jupiter.Io
ObservedRegion
Jupiter.Ganymede
ObservedRegion
Jupiter.Europa
ObservedRegion
Jupiter.Callisto
ObservedRegion
Saturn.Iapetus
ObservedRegion
Saturn.Enceladus
ObservedRegion
Saturn.Dione
ObservedRegion
Saturn.Rhea
ObservedRegion
Saturn.Mimas
ObservedRegion
Saturn.Tethys
ObservedRegion
Saturn.Titan
ObservedRegion
Saturn.Magnetosphere
ObservedRegion
Saturn
ObservedRegion
Jupiter.Magnetosphere
ObservedRegion
Jupiter
ObservedRegion
Heliosphere.Heliosheath
ObservedRegion
Heliosphere.Outer
Parameter #1
Name
Year
ParameterKey
Field 1
Description

Year

Support
SupportQuantity
Temporal
Parameter #2
Name
DOY
ParameterKey
Field 2
Description

Day of Year

Support
SupportQuantity
Temporal
Parameter #3
Name
Radial Distance
ParameterKey
Field 3
Description

Spacecraft Radial Distance in AU

Units
AU
UnitsConversion
1.49598e11>m
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
HGI
Support
SupportQuantity
Positional
Parameter #4
Name
HGI Latitude of Spacecraft
ParameterKey
Field 4
Description

Spacecraft latitude in the HGI system (degrees)

Units
degrees
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
HGI
Support
SupportQuantity
Positional
Parameter #5
Name
HG Longitude of Spacecraft
ParameterKey
Field 5
Description

Spacecraft longitude in the HG system (degrees)

Units
degrees
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
HG
Support
SupportQuantity
Positional
Parameter #6
Name
HGI Longitude of Spacecraft
ParameterKey
Field 6
Description

Spacecraft longitude in the HGI system (degrees)

Units
degrees
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
HGI
Support
SupportQuantity
Positional