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Voyager 1 Low-Energy Charged Particle (LECP) Ion Channel Intensities By Sector in ASCII Format 3-hour

Krimigis, Stamatios M.; Decker, Robert B. (2025). Voyager 1 Low-Energy Charged Particle (LECP) Ion Channel Intensities By Sector in ASCII Format 3-hour [Data set]. Johns Hopkins University Applied Physics Laboratory; Space Physics Data Facility. https://doi.org/10.48322/nrrn-7g70 .

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/Voyager1/LECP/Flux/Ion/Sectored/PT3H

Description

Count Rates, For All Sectors, Voyager1, LECP, Filtered, Channel, Calibrated, CadencePT3H

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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/Voyager1/LECP/Flux/Ion/Sectored/PT3H
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
Voyager 1 Low-Energy Charged Particle (LECP) Ion Channel Intensities By Sector in ASCII Format 3-hour
AlternateName
V1-LECP-IONFLUX-SECTORED-PT3H
DOI
https://doi.org/10.48322/nrrn-7g70
ReleaseDate
2026-07-21 12:08:41Z
RevisionHistory
RevisionEvent
ReleaseDate
2020-07-07 21:15:52Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-11-14 16:03:00Z
Note
Added PublicationInfo. Added ResourceType and NamingAuthority. 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 updated value in Version tag. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:32:26Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-02-17 15:07:05Z
Note
Added DOI. tlk
RevisionEvent
ReleaseDate
2026-06-26 13:30:50Z
Note
Add 'Z' to TemporalDescription:TimeSpan:StopDate. ZCB
RevisionEvent
ReleaseDate
2026-07-21 12:08:41Z
Note
Added HelioData InformationURL. JWL
Description

Count Rates, For All Sectors, Voyager1, LECP, Filtered, Channel, Calibrated, CadencePT3H

Acknowledgement
Please acknowledge the LECP PI (S.M. Krimigis) and the lead LECP CoI (R.B. Decker)
PublicationInfo
Authors
Krimigis, Stamatios M.; Decker, Robert B.
PublicationDate
2025-11-14 16:03:00Z
PublishedBy
Johns Hopkins University Applied Physics Laboratory; Space Physics Data Facility
Contacts
Role Person StartDate StopDate Note
1. PrincipalInvestigator spase://SMWG/Person/Stamatios.M.Krimigis
2. CoInvestigator spase://SMWG/Person/Robert.B.Decker
3. ArchiveSpecialist spase://SMWG/Person/Lawrence.Brown
InformationURL
Name
Informational Website for Voyager 1 and 2 LECP Instrument
URL
http://sd-www.jhuapl.edu/VOYAGER/v1_data/v1_3h/v1_ion_3h/aaa_read_me.txt
Description

The webpage provides a detailed description of Ion Channel Intensity files.

InformationURL
Name
HelioData
URL
https://helio.data.nasa.gov/dataset/Voyager1_LECP_Flux_Ion_Sectored_PT3H
Description

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

PriorIDs
spase://VEPO/NumericalData/Voyager1/LECP/Flux.Ion.Sectored.PT3H
spase://VSPO/NumericalData/Voyager1/LECP/Flux/Ion/Sectored/PT3H
AccessInformation
RepositoryID
spase://SMWG/Repository/JHU_APL
Availability
Online
AccessRights
Open
AccessURL
Name
Voyager1 LECP Average Filtered Rate Data in ASCII Format
URL
http://sd-www.jhuapl.edu/VOYAGER/v1_data/v1_3h/v1_ion_3h/
Description

Count Rates, All Sectors, Voyager1, LECP, Filtered, Channel CSV Text Files, File Name Template: http://sd-www.jhuapl.edu/VOYAGER/v1_data/v1_3h/v1_ion_3h/v1_%Y_ion_3h/%{ ;regexp='. '}%Y%{ ;regexp='. '}

Format
Text
Encoding
GZIP
Acknowledgement
S.M. Krimigis, JHU/APL
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Online
AccessRights
Open
RightsList
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 NASA Heliophysics data products
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/voyager/voyager1/particle/lecp/v1_ion_3hour/
Description

ftp access to annual non-zipped ASCII files

AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/voyager/voyager1/particle/lecp/v1_ion_3hour/
Description

In CDF via HTTP from SPDF

Format
Text
Acknowledgement
S.M. Krimigis, JHU/APL, and the Space Physics Data Facility
InstrumentIDs
spase://SMWG/Instrument/Voyager1/LECP
MeasurementType
EnergeticParticles
TemporalDescription
TimeSpan
StartDate
1991-01-01 00:00:00.000Z
StopDate
2009-05-31 23:59:59.999Z
Cadence
PT3H
ObservedRegion
Heliosphere.Outer
ObservedRegion
Heliosphere.Heliosheath
Parameter #1
Name
Start Time of Data Record
ParameterKey
StartTime
Description

Start Time for the record given in year, day of
year, hour.

Cadence
PT3H
Structure
Size
5
Element
Name
Year
Index
1
ValidMin
1977
ValidMax
2008
Element
Name
Day of year
Index
2
ValidMin
1
ValidMax
366
Element
Name
Hour of day
Index
3
ValidMin
0
ValidMax
23
Element
Name
Minute of hour
Index
4
ValidMin
0
ValidMax
59
Element
Name
Seconds of minute
Index
5
ValidMin
0
ValidMax
59.99
Support
SupportQuantity
Temporal
Parameter #2
Name
Start Time of Data Record (Decimal Year)
ParameterKey
DEC_YEAR
Description

decimal year (double precision) = year + (doy - 1 + hr/24)/dpy (dpy=365 or 366)

Cadence
PT3H
Support
SupportQuantity
Temporal
Parameter #3
Name
Start Time of Data Record (Decimal Day of Year)
ParameterKey
DEC_DOY
Description

Decimal Day of Year (1.0-365.0 or 366.0)

Cadence
PT3H
Support
SupportQuantity
Temporal
Parameter #4
Name
Start Time of Data Record (Decimal Hour of Day)
ParameterKey
DEC_HR
Description

Decimal Hour of Day

Cadence
PT3H
Support
SupportQuantity
Temporal
Parameter #5
Name
PL01 Flux
ParameterKey
PL01_FLUX
Description

PL01 Ion Flux

Cadence
PT3H
Units
Ions/(cm^2 sec ster MeV)
Structure
Size
18
Element
Name
Sector 01
Index
0
Element
Name
Sector 01 Uncertainty
Index
1
Element
Name
Sector 02
Index
2
Element
Name
Sector 02 Uncertainty
Index
3
Element
Name
Sector 03
Index
4
Element
Name
Sector 03 Uncertainty
Index
5
Element
Name
Sector 04
Index
6
Element
Name
Sector 04 Uncertainty
Index
7
Element
Name
Sector 05
Index
8
Element
Name
Sector 05 Uncertainty
Index
9
Element
Name
Sector 06
Index
10
Element
Name
Sector 06 Uncertainty
Index
11
Element
Name
Sector 07
Index
12
Element
Name
Sector 07 Uncertainty
Index
13
Element
Name
Sector 08
Index
14
Element
Name
Sector 08 Uncertainty
Index
15
Element
Name
Averaged Over All Sectors
Index
16
Element
Name
Averaged Over All Sectors Uncertainty
Index
17
FillValue
-1
Particle
ParticleType
Ion
ParticleQuantity
EnergyFlux
EnergyRange
Low
0.04
High
0.053
Units
MeV/ion
Parameter #6
Name
PL02 Flux
ParameterKey
PL02_FLUX
Description

PL02 Ion Flux

Cadence
PT3H
Units
Ions/(cm^2 sec ster MeV)
Structure
Size
18
Element
Name
Sector 01
Index
0
Element
Name
Sector 01 Uncertainty
Index
1
Element
Name
Sector 02
Index
2
Element
Name
Sector 02 Uncertainty
Index
3
Element
Name
Sector 03
Index
4
Element
Name
Sector 03 Uncertainty
Index
5
Element
Name
Sector 04
Index
6
Element
Name
Sector 04 Uncertainty
Index
7
Element
Name
Sector 05
Index
8
Element
Name
Sector 05 Uncertainty
Index
9
Element
Name
Sector 06
Index
10
Element
Name
Sector 06 Uncertainty
Index
11
Element
Name
Sector 07
Index
12
Element
Name
Sector 07 Uncertainty
Index
13
Element
Name
Sector 08
Index
14
Element
Name
Sector 08 Uncertainty
Index
15
Element
Name
Averaged Over All Sectors
Index
16
Element
Name
Averaged Over All Sectors Uncertainty
Index
17
FillValue
-1
Particle
ParticleType
Ion
ParticleQuantity
EnergyFlux
EnergyRange
Low
0.053
High
0.085
Units
MeV/ion
Parameter #7
Name
PL03 Flux
ParameterKey
PL03_FLUX
Description

PL03 Ion Flux

Cadence
PT3H
Units
Ions/(cm^2 sec ster MeV)
Structure
Size
18
Element
Name
Sector 01
Index
0
Element
Name
Sector 01 Uncertainty
Index
1
Element
Name
Sector 02
Index
2
Element
Name
Sector 02 Uncertainty
Index
3
Element
Name
Sector 03
Index
4
Element
Name
Sector 03 Uncertainty
Index
5
Element
Name
Sector 04
Index
6
Element
Name
Sector 04 Uncertainty
Index
7
Element
Name
Sector 05
Index
8
Element
Name
Sector 05 Uncertainty
Index
9
Element
Name
Sector 06
Index
10
Element
Name
Sector 06 Uncertainty
Index
11
Element
Name
Sector 07
Index
12
Element
Name
Sector 07 Uncertainty
Index
13
Element
Name
Sector 08
Index
14
Element
Name
Sector 08 Uncertainty
Index
15
Element
Name
Averaged Over All Sectors
Index
16
Element
Name
Averaged Over All Sectors Uncertainty
Index
17
FillValue
-1
Particle
ParticleType
Ion
ParticleQuantity
EnergyFlux
EnergyRange
Low
0.085
High
0.139
Units
MeV/ion
Parameter #8
Name
PL04 Flux
ParameterKey
PL04_FLUX
Description

PL04 Ion Flux

Cadence
PT3H
Units
Ions/(cm^2 sec ster MeV)
Structure
Size
18
Element
Name
Sector 01
Index
0
Element
Name
Sector 01 Uncertainty
Index
1
Element
Name
Sector 02
Index
2
Element
Name
Sector 02 Uncertainty
Index
3
Element
Name
Sector 03
Index
4
Element
Name
Sector 03 Uncertainty
Index
5
Element
Name
Sector 04
Index
6
Element
Name
Sector 04 Uncertainty
Index
7
Element
Name
Sector 05
Index
8
Element
Name
Sector 05 Uncertainty
Index
9
Element
Name
Sector 06
Index
10
Element
Name
Sector 06 Uncertainty
Index
11
Element
Name
Sector 07
Index
12
Element
Name
Sector 07 Uncertainty
Index
13
Element
Name
Sector 08
Index
14
Element
Name
Sector 08 Uncertainty
Index
15
Element
Name
Averaged Over All Sectors
Index
16
Element
Name
Averaged Over All Sectors Uncertainty
Index
17
FillValue
-1
Particle
ParticleType
Ion
ParticleQuantity
EnergyFlux
EnergyRange
Low
0.139
High
0.22
Units
MeV/ion
Parameter #9
Name
PL05 Flux
ParameterKey
PL05_FLUX
Description

PL05 Ion Flux

Cadence
PT3H
Units
Ions/(cm^2 sec ster MeV)
Structure
Size
18
Element
Name
Sector 01
Index
0
Element
Name
Sector 01 Uncertainty
Index
1
Element
Name
Sector 02
Index
2
Element
Name
Sector 02 Uncertainty
Index
3
Element
Name
Sector 03
Index
4
Element
Name
Sector 03 Uncertainty
Index
5
Element
Name
Sector 04
Index
6
Element
Name
Sector 04 Uncertainty
Index
7
Element
Name
Sector 05
Index
8
Element
Name
Sector 05 Uncertainty
Index
9
Element
Name
Sector 06
Index
10
Element
Name
Sector 06 Uncertainty
Index
11
Element
Name
Sector 07
Index
12
Element
Name
Sector 07 Uncertainty
Index
13
Element
Name
Sector 08
Index
14
Element
Name
Sector 08 Uncertainty
Index
15
Element
Name
Averaged Over All Sectors
Index
16
Element
Name
Averaged Over All Sectors Uncertainty
Index
17
FillValue
-1
Particle
ParticleType
Ion
ParticleQuantity
EnergyFlux
EnergyRange
Low
0.22
High
0.55
Units
MeV/ion
Parameter #10
Name
PL06 Flux
ParameterKey
PL06_FLUX
Description

PL06 Ion Flux

Cadence
PT3H
Units
Ions/(cm^2 sec ster MeV)
Structure
Size
18
Element
Name
Sector 01
Index
0
Element
Name
Sector 01 Uncertainty
Index
1
Element
Name
Sector 02
Index
2
Element
Name
Sector 02 Uncertainty
Index
3
Element
Name
Sector 03
Index
4
Element
Name
Sector 03 Uncertainty
Index
5
Element
Name
Sector 04
Index
6
Element
Name
Sector 04 Uncertainty
Index
7
Element
Name
Sector 05
Index
8
Element
Name
Sector 05 Uncertainty
Index
9
Element
Name
Sector 06
Index
10
Element
Name
Sector 06 Uncertainty
Index
11
Element
Name
Sector 07
Index
12
Element
Name
Sector 07 Uncertainty
Index
13
Element
Name
Sector 08
Index
14
Element
Name
Sector 08 Uncertainty
Index
15
Element
Name
Averaged Over All Sectors
Index
16
Element
Name
Averaged Over All Sectors Uncertainty
Index
17
FillValue
-1
Particle
ParticleType
Ion
ParticleQuantity
EnergyFlux
EnergyRange
Low
0.55
High
1.05
Units
MeV/ion
Parameter #11
Name
PL07 Flux
ParameterKey
PL07_FLUX
Description

PL07 Ion Flux

Cadence
PT3H
Units
Ions/(cm^2 sec ster MeV)
Structure
Size
18
Element
Name
Sector 01
Index
0
Element
Name
Sector 01 Uncertainty
Index
1
Element
Name
Sector 02
Index
2
Element
Name
Sector 02 Uncertainty
Index
3
Element
Name
Sector 03
Index
4
Element
Name
Sector 03 Uncertainty
Index
5
Element
Name
Sector 04
Index
6
Element
Name
Sector 04 Uncertainty
Index
7
Element
Name
Sector 05
Index
8
Element
Name
Sector 05 Uncertainty
Index
9
Element
Name
Sector 06
Index
10
Element
Name
Sector 06 Uncertainty
Index
11
Element
Name
Sector 07
Index
12
Element
Name
Sector 07 Uncertainty
Index
13
Element
Name
Sector 08
Index
14
Element
Name
Sector 08 Uncertainty
Index
15
Element
Name
Averaged Over All Sectors
Index
16
Element
Name
Averaged Over All Sectors Uncertainty
Index
17
FillValue
-1
Particle
ParticleType
Ion
ParticleQuantity
EnergyFlux
EnergyRange
Low
1.05
High
2.0
Units
MeV/ion
Parameter #12
Name
PL08 Flux
ParameterKey
PL08_FLUX
Description

PL08 Ion Flux

Cadence
PT3H
Units
Ions/(cm^2 sec ster MeV)
Structure
Size
18
Element
Name
Sector 01
Index
0
Element
Name
Sector 01 Uncertainty
Index
1
Element
Name
Sector 02
Index
2
Element
Name
Sector 02 Uncertainty
Index
3
Element
Name
Sector 03
Index
4
Element
Name
Sector 03 Uncertainty
Index
5
Element
Name
Sector 04
Index
6
Element
Name
Sector 04 Uncertainty
Index
7
Element
Name
Sector 05
Index
8
Element
Name
Sector 05 Uncertainty
Index
9
Element
Name
Sector 06
Index
10
Element
Name
Sector 06 Uncertainty
Index
11
Element
Name
Sector 07
Index
12
Element
Name
Sector 07 Uncertainty
Index
13
Element
Name
Sector 08
Index
14
Element
Name
Sector 08 Uncertainty
Index
15
Element
Name
Averaged Over All Sectors
Index
16
Element
Name
Averaged Over All Sectors Uncertainty
Index
17
FillValue
-1
Particle
ParticleType
Ion
ParticleQuantity
EnergyFlux
EnergyRange
Low
2.0
High
4.0
Units
MeV/ion