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Voyager 1 hourly merged magnetic field and plasma data

(2023). Voyager 1 hourly merged magnetic field and plasma data [Data set]. NASA Space Physics Data Facility. https://doi.org/10.48322/041p-cv36 (CiteAs link). Accessed on .

ResourceID
spase://NASA/NumericalData/Voyager1/MAGandPLS/PT1H

Description

This is an hourly resolution, merged magnetic field and plasma data set created at NSSDC for COHOWeb. Magnetic field vectors and plasma flow direction angles are given in RTN coordinates. Spacecraft position data are given in Heliographic inertial (HGI coordinates).

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Details

Version:2.6.0

NumericalData

ResourceID
spase://NASA/NumericalData/Voyager1/MAGandPLS/PT1H
ResourceHeader
ResourceName
Voyager 1 hourly merged magnetic field and plasma data
DOI
https://doi.org/10.48322/041p-cv36
ReleaseDate
2023-07-30 12:34:56.789
RevisionHistory
RevisionEvent
ReleaseDate
2021-04-27 15:38:11
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2023-07-30 12:34:56.789
Note
Added DOI and PublicationInfo minted by LFB, metadata versioned up to SPASE 2.6.0, reviewed by LFB 20230727
Description

This is an hourly resolution, merged magnetic field and plasma data set created at NSSDC for COHOWeb. Magnetic field vectors and plasma flow direction angles are given in RTN coordinates. Spacecraft position data are given in Heliographic inertial (HGI coordinates).

Acknowledgement
Please acknowledge N.F. Ness (P.I.) and L. Burlaga for magnetic field data and J. Richardson (P.I.) for plasma data, and NSSDC or GSFC-SPDF
PublicationInfo
Authors
Ness, Norman, F.; Richardson, John, D.; Burlaga, Leonard, F.; Papitashvili, Natalia, E.
PublicationDate
2023-01-01 00:00:00
PublishedBy
NASA Space Physics Data Facility
Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://SMWG/Person/Norman.F.Ness
2.PrincipalInvestigatorspase://SMWG/Person/John.D.Richardson
3.CoInvestigatorspase://SMWG/Person/Leonard.F.Burlaga
4.GeneralContactspase://SMWG/Person/Natalia.E.Papitashvili
5.MetadataContactspase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
Readme file at SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/voyager/voyager1/merged/vy1mgd.txt
PriorIDs
spase://VHO/NumericalData/Voyager1/MAGandPLS/PT1H
spase://VSPO/NumericalData/Voyager1/MAGandPLS/PT1H
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/voyager/voyager1/merged/
Description

for annual files via ftp

AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/voyager/voyager1/merged/
Description

In CDF via HTTP from SPDF

AccessURL
Name
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=VOYAGER1_COHO1HR_MERGED_MAG_PLASMA&index=sp_phys
ProductKey
VOYAGER1_COHO1HR_MERGED_MAG_PLASMA
Description

For CDAWeb subset,plot and list capabilities

AccessURL
Name
COHOWeb plots and lists
URL
https://omniweb.gsfc.nasa.gov/coho/form/voyager1.html
Description

Voyager 1-specific page for plots and lists

AccessURL
Name
COHOweb top page
URL
https://omniweb.gsfc.nasa.gov/coho/
Description

Plots, lists, scatter plots, regressions, distributions, means, etc.

Format
Text
DataExtent
Quantity
1
Units
MB
Per
P1Y
Acknowledgement
Please acknowledge N.F. Ness (P.I.) and L. Burlaga for magnetic field data and J. Richardson (P.I.) for plasma data, and NSSDC or GSFC-SPDF
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb HAPI Server
URL
https://cdaweb.gsfc.nasa.gov/hapi
Style
HAPI
ProductKey
VOYAGER1_COHO1HR_MERGED_MAG_PLASMA
Description

Web Service to this product using the HAPI interface.

Format
CSV
Acknowledgement
Please acknowledge N.F. Ness (P.I.) and L. Burlaga for magnetic field data and J. Richardson (P.I.) for plasma data, and NSSDC or GSFC-SPDF
InstrumentIDs
spase://SMWG/Instrument/Voyager1/MAG
spase://SMWG/Instrument/Voyager1/PLS
MeasurementType
MagneticField
MeasurementType
ThermalPlasma
TemporalDescription
TimeSpan
StartDate
1977-09-07 00:00:00
StopDate
2006-12-31 00:00:00
Note
Plasma data end on day 327, Nov. 22, of 1994.
Cadence
PT1H
ObservedRegion
Heliosphere.Outer
ObservedRegion
Heliosphere.Heliosheath
Parameter #1
Name
Year
ParameterKey
Column1
Description

Four digit Year

Cadence
PT1H
FillValue
999.9999
Support
SupportQuantity
Temporal
Parameter #2
Name
Day
ParameterKey
Column2
Description

Decimal Day of Year

Cadence
PT1H
FillValue
999.9999
Support
SupportQuantity
Temporal
Parameter #3
Name
Hour
ParameterKey
Column3
Description

Hour

Cadence
PT1H
FillValue
999.9999
Support
SupportQuantity
Temporal
Parameter #4
Name
V1 radial distance
ParameterKey
Column04
Description

Heliocentric radial distance of Voyager 1 in AU

Cadence
PT1H
Units
AU
Support
SupportQuantity
Positional
Parameter #5
Name
V1 latitude
ParameterKey
Column05
Description

Heliographic Inertial elevation angle of Voyager 1 in deg

Cadence
PT1H
Units
deg
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
HGI
Support
SupportQuantity
Positional
Parameter #6
Name
V1 longitude
ParameterKey
Column06
Description

Heliographic Inertial azimuthal angle of Voyager 1 in deg

Cadence
PT1H
Units
deg
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
HGI
Support
SupportQuantity
Positional
Parameter #7
Name
Average Field Magnitude
ParameterKey
Column07
Description

Hourly average of fine time scale magnetic field magnitudes

Cadence
PT1H
Units
nT
FillValue
999.999
Field
Qualifier
Magnitude
FieldQuantity
Magnetic
Parameter #8
Name
Magnitude of Average Field Vector
ParameterKey
Column08
Description

Magnitude of vector formed from hourly averages of fine time scale magnetic field components

Cadence
PT1H
Units
nT
FillValue
999.999
Field
Qualifier
Magnitude
FieldQuantity
Magnetic
Parameter #9
Name
Magnetic Field Vector
Description

Hourly averages of RTN components of fine time scale magnetic field vectors

Cadence
PT1H
Units
nT
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
RTN
Structure
Size
3
Description

R,T,N components

Element
Name
R component
Qualifier
Component.I
Index
1
ParameterKey
Column09
Element
Name
T component
Qualifier
Component.J
Index
2
ParameterKey
Column10
Element
Name
N component
Qualifier
Component.K
Index
3
ParameterKey
Column11
FillValue
999.999
Field
Qualifier
Vector
FieldQuantity
Magnetic
Parameter #10
Name
Flow speed
ParameterKey
Column12
Description

Hourly averaged solar wind plasma flow speed

Cadence
PT1H
Units
km/s
FillValue
9999.9
Particle
ParticleType
Proton
Qualifier
Average
ParticleQuantity
FlowSpeed
Parameter #11
Name
Flow elevation angle
ParameterKey
Column13
Description

Hourly averaged solar wind plasma flow elevation angle

Cadence
PT1H
Units
deg
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
RTN
FillValue
9999.9
Particle
ParticleType
Proton
Qualifier
DirectionAngle.ElevationAngle
ParticleQuantity
FlowVelocity
Parameter #12
Name
Flow azimuth angle
ParameterKey
Column14
Description

Hourly averaged solar wind plasma flow azimuthal angle

Cadence
PT1H
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
RTN
FillValue
9999.9
Particle
ParticleType
Proton
Qualifier
DirectionAngle.AzimuthAngle
ParticleQuantity
FlowVelocity
Parameter #13
Name
Density
ParameterKey
Column15
Description

Hourly averaged solar wind plasma density

Cadence
PT1H
Units
n/cc
FillValue
99.99999
Particle
ParticleType
Proton
Qualifier
Average
ParticleQuantity
NumberDensity
Parameter #14
Name
Temperature
ParameterKey
Column16
Description

Hourly averaged solar wind plasma temperature

Cadence
PT1H
Units
degK
FillValue
9999999.
Particle
ParticleType
Proton
Qualifier
Average
ParticleQuantity
Temperature