HDPWS

Voyager 1 Low-Energy Charged Particle (LECP) Background-Corrected Electron Differential Fluxes, Daily Data in CDF Format

(2024). Voyager 1 Low-Energy Charged Particle (LECP) Background-Corrected Electron Differential Fluxes, Daily Data in CDF Format. [Data set]. NASA Space Physics Data Facility. https://doi.org/10.48322/s65n-9703. Accessed on .
Citations should include the "Accessed on date" as shown at the end of the reference above.

ResourceID
spase://NASA/NumericalData/Voyager1/LECP/Flux/Electron/BackgroundCorrectedDifferential/CDF/P1D

Description
This data set contains data from the LECP instrument on the Voyager 1 spacecraft. Each record in a file contains 1-day (24-hour) scan-averaged fluxes and flux uncertainties of electrons in two contiguous energy channels that cover the energy range 26-70 keV. The period 2002/001 through 2012/240 includes electrons measured upstream of the termination shock and in the heliosheath up though ~2 days after the heliopause crossing. The Voyager 1 LECP instrument steps through eight, 45 deg full-angle sectors, spending 192 sec in each sector, yielding a full scan through 360 deg every 25.6 min. The LECP scan plane is nearly parallel to RT-plane of the heliospheric RTN coordinate system. The electron data are averaged over the seven active sectors S1-S7; S8 is behind the sun-shield and not included in the average. -- Electron channels designated EB01 and EB02 -- Data have been corrected to remove background due to penetrating cosmic ray ions -- Electron fluxes and uncertainties (one st. dev.) in units: (cm^2 s sr MeV)^-1 -- Data are 5-point running averages of daily values -- Values -9.900e+01 used for missing or nonphysical data -- Negative year indicates filled data for the associated doy

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Details

Version:2.6.0

NumericalData

ResourceID
spase://NASA/NumericalData/Voyager1/LECP/Flux/Electron/BackgroundCorrectedDifferential/CDF/P1D
ResourceHeader
ResourceName
Voyager 1 Low-Energy Charged Particle (LECP) Background-Corrected Electron Differential Fluxes, Daily Data in CDF Format
DOI
https://doi.org/10.48322/s65n-9703
ReleaseDate
2024-05-15 00:00:00.00
RevisionHistory
RevisionEvent
ReleaseDate
2024-05-15 00:00:00.00
Note
Metadata created by LFB (ADAPT code), final editing and DOI minting by AK
Description
This data set contains data from the LECP instrument on the Voyager 1 spacecraft. Each record in a file contains 1-day (24-hour) scan-averaged fluxes and flux uncertainties of electrons in two contiguous energy channels that cover the energy range 26-70 keV. The period 2002/001 through 2012/240 includes electrons measured upstream of the termination shock and in the heliosheath up though ~2 days after the heliopause crossing. The Voyager 1 LECP instrument steps through eight, 45 deg full-angle sectors, spending 192 sec in each sector, yielding a full scan through 360 deg every 25.6 min. The LECP scan plane is nearly parallel to RT-plane of the heliospheric RTN coordinate system. The electron data are averaged over the seven active sectors S1-S7; S8 is behind the sun-shield and not included in the average. -- Electron channels designated EB01 and EB02 -- Data have been corrected to remove background due to penetrating cosmic ray ions -- Electron fluxes and uncertainties (one st. dev.) in units: (cm^2 s sr MeV)^-1 -- Data are 5-point running averages of daily values -- Values -9.900e+01 used for missing or nonphysical data -- Negative year indicates filled data for the associated doy
Acknowledgement
Please acknowledge the Voyager LECP Principal Investigator, Dr. Stamatios M. Krimigis of the Applied Physics Laboratory Johns Hopkins University. The LECP instrument was supported under a NASA Contract with the Johns Hopkins Applied Physics Laboratory, with subcontracts to Fundamental Technologies LLC.. 1. The Principal Investigators (PIs) shall, in a timely manner, make available to the science data user community (Users) data and access methods to reach the scientifically useful data and provide analysis tools equivalent to the level that the PI uses. 2. The PI shall make available appropriate data products to the Public that assist the PI?s EPO responsibilities. 3. The PI shall ensure all scientifically important data and supporting material are archived to ensure long-term accessibility of the data and their correct and independent usability. 4. The PI or the appropriate provider shall inform Users of updates to processing software and calibrations via metadata and other appropriate documentation. 5. Users shall consult with the PI to ensure that the Users are accessing the most recent available versions of the data and analysis routines, and for assistance in the proper interpretation of the data. HDMC and the Final Archives shall facilitate this, serving as a contact point between PI and users as needed. 6. Browse products are not intended for science analysis or publication and shall not be used for those purposes without consent of the PI. 7. Users shall acknowledge the sources of data used in all publications, presentations, and reports. In some journals, this can now be done through formal citation of the data product in the reference list. 8. Users are encouraged to provide the PI a copy of each manuscript that uses the PI's data upon submission of that manuscript for consideration of publication. On publication the citation shall be transmitted to the PI and any other providers of data. (The community needs to work to find ways to make this easy/automatic.) 9. Users are encouraged to make tools of general utility and/or value-added data products widely available to the community. Users are encouraged to notify the PI of such utilities or products. The User shall also clearly label the product as being different from the original PI-produced data product.
PublicationInfo
Authors
Hill, Matthew; Nikoukar, Romina
PublicationDate
2024-01-01 00:00:00
PublishedBy
NASA Space Physics Data Facility
Contacts
Role Person StartDate StopDate Note
1. PrincipalInvestigator spase://SMWG/Person/Stamatios.M.Krimigis
2. DeputyPI spase://SMWG/Person/Matthew.Hill
3. CoInvestigator spase://SMWG/Person/Robert.B.Decker
4. CoInvestigator spase://SMWG/Person/Jerry.W.Manweiler
5. MetadataContact spase://SMWG/Person/Robert.M.Candey
6. MetadataContact spase://SMWG/Person/Andriy.Koval

InformationURL
Name
Voyager Data at Fundamental Technologies
URL
InformationURL
Name
Voyager LECP Experiments Web Site
URL
InformationURL
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
Description
Access to Data in CDF Format via ftps from SPDF
AccessURL
Name
HTTPS from SPDF
URL
Description
Access to Data in CDF Format via https from SPDF
AccessURL
Name
CDAWeb
URL
ProductKey
VOYAGER-1_LECP_ELEC-BGND-COR-1D
Description
Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb
Format
CDF
Encoding
None
AccessDirectoryTemplate
https://cdaweb.gsfc.nasa.gov/pub/data/voyager/voyager1/particle/lecp/electron-background-corrected-daily-cdf
AccessFilenameTemplate
voyager-1_lecp_elec-bgnd-cor-1d_$Y$m$d_$v.cdf
Acknowledgement
Please acknowledge Stamatios M. Krimigis and Robert B. Decker. Please acknowledge the Data Providers and CDAWeb when using these Data.
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb Programmatic Data Access
URL
Style
WebService
ProductKey
VOYAGER-1_LECP_ELEC-BGND-COR-1D
Description
Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS.
Format
Binary
Acknowledgement
Please acknowledge Stamatios M. Krimigis and Robert B. Decker. Please acknowledge the Data Providers and CDAWeb when using these Data.
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb HAPI Server
URL
Style
HAPI
ProductKey
VOYAGER-1_LECP_ELEC-BGND-COR-1D
Description
Web Service to this product using the HAPI interface.
Format
CSV
ProcessingLevel
Calibrated
InstrumentIDs
MeasurementType
EnergeticParticles
TemporalDescription
TimeSpan
StartDate
2002-01-01 00:00:00
StopDate
2012-08-27 00:00:00
Cadence
P1D
ObservedRegion
Heliosphere.Outer
ObservedRegion
Heliosphere.Heliosheath
Parameter #1
Name
Time
ParameterKey
Epoch
Description
Time, beginning of interval
Caveats
This Parameter exhibits an increasing Monotonic Progression
Units
ms
UnitsConversion
1.0e-3>s
RenderingHints
AxisLabel
Epoch
ValueFormat
E14.8
ScaleMin
6.2167197819904e+13
ScaleMax
6.4376186619904e+13
ValidMin
01-Jan-1970 00:00:00.000
ValidMax
01-Jan-2040 00:00:00.000
FillValue
31-Dec-9999 23:59:59.999
Support
SupportQuantity
Temporal
Parameter #2
Name
Year
ParameterKey
year
Description
4-digit year
RenderingHints
AxisLabel
year
ValueFormat
I4
ValidMin
1977
ValidMax
2050
Support
SupportQuantity
Temporal
Parameter #3
Name
Doy
ParameterKey
doy
Description
Day of year (1-365 or 366)
RenderingHints
AxisLabel
doy
ValueFormat
I3
ValidMin
1
ValidMax
366
Support
SupportQuantity
Temporal
Parameter #4
Name
Decimal Year
Set
Time series defined by using: Epoch
ParameterKey
decimalYear
Description
Decimal year = year + (doy - 1)/dpy (dpy=365 or 366)
Cadence
P1D
RenderingHints
DisplayType
TimeSeries
AxisLabel
decimal year
ValueFormat
F12.7
ValidMin
1977.0
ValidMax
2050.0
Support
SupportQuantity
Temporal
Parameter #5
Name
EB01_fav
Set
Time series defined by using: Epoch
ParameterKey
EB01_fav
Description
Flux, electrons 26-37 keV
Cadence
P1D
Units
(cm^2 s sr MeV)^-1
UnitsConversion
6.24161e-19>(m^2 s sr J)^-1
RenderingHints
DisplayType
TimeSeries
AxisLabel
EB01_fav
ValueFormat
E9.2
ValidMin
-1.0e+06
ValidMax
1.0e+06
FillValue
-99.0
Particle
ParticleType
Electron
Qualifier
Differential
ParticleQuantity
NumberFlux
EnergyRange
Low
26
High
37
Units
keV
Parameter #6
Name
EB01_favu
Set
Time series defined by using: Epoch
ParameterKey
EB01_favu
Description
Stat. unc. of EB01_fav
Cadence
P1D
Units
(cm^2 s sr MeV)^-1
UnitsConversion
6.24161e-19>(m^2 s sr J)^-1
RenderingHints
DisplayType
TimeSeries
AxisLabel
EB01_favu
ValueFormat
E9.2
ValidMin
-1.0e+06
ValidMax
1.0e+06
FillValue
-99.0
Particle
ParticleType
Electron
Qualifier
Uncertainty
Qualifier
Differential
ParticleQuantity
NumberFlux
EnergyRange
Low
26
High
37
Units
keV
Parameter #7
Name
EB02_fav
Set
Time series defined by using: Epoch
ParameterKey
EB02_fav
Description
Flux, electrons 37-70 keV
Cadence
P1D
Units
(cm^2 s sr MeV)^-1
UnitsConversion
6.24161e-19>(m^2 s sr J)^-1
RenderingHints
DisplayType
TimeSeries
AxisLabel
EB02_fav
ValueFormat
E9.2
ValidMin
-1.0e+06
ValidMax
1.0e+06
FillValue
-99.0
Particle
ParticleType
Electron
Qualifier
Differential
ParticleQuantity
NumberFlux
EnergyRange
Low
37
High
70
Units
keV
Parameter #8
Name
EB02_favu
Set
Time series defined by using: Epoch
ParameterKey
EB02_favu
Description
Stat. unc. of EB02_fav
Cadence
P1D
Units
(cm^2 s sr MeV)^-1
UnitsConversion
6.24161e-19>(m^2 s sr J)^-1
RenderingHints
DisplayType
TimeSeries
AxisLabel
EB02_favu
ValueFormat
E9.2
ValidMin
-1.0e+06
ValidMax
1.0e+06
FillValue
-99.0
Particle
ParticleType
Electron
Qualifier
Uncertainty
Qualifier
Differential
ParticleQuantity
NumberFlux
EnergyRange
Low
37
High
70
Units
keV