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ISEE 1 LEPEDEA Distribution Functions, offline at NSSDC

ResourceID
spase://NASA/NumericalData/ISEE1/LEPEDEA/PT128S

Description

This data set consists of three-dimensional proton and electron distribution functions. The energy range is 1 eV to 45 keV or 215 eV to 45 keV, according to mode. Time resolution for full distributions is 128 sec or 512 sec, depending on telemetry bit rate. Eight latitude and 16 azimuth bins are used, spanning 180 deg and 360 deg. Spacecraft position information is included. Data are currently in VAX binary format. Data are for discrete intervals 11/01/1977-12/31/1980, 10/15/1982-12/27/1983, 03/01/1986-06/01/1986

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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/ISEE1/LEPEDEA/PT128S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
ISEE 1 LEPEDEA Distribution Functions, offline at NSSDC
ReleaseDate
2025-12-04 13:29:37Z
RevisionHistory
RevisionEvent
ReleaseDate
2020-07-07 21:14:39Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-12-04 13:29:37Z
Note
Added MetadataRightsList and RightsList(s). Added ResourceType and NamingAuthority. Updated to 2.7.1. ZCB
Description

This data set consists of three-dimensional proton and electron distribution functions. The energy range is 1 eV to 45 keV or 215 eV to 45 keV, according to mode. Time resolution for full distributions is 128 sec or 512 sec, depending on telemetry bit rate. Eight latitude and 16 azimuth bins are used, spanning 180 deg and 360 deg. Spacecraft position information is included. Data are currently in VAX binary format. Data are for discrete intervals 11/01/1977-12/31/1980, 10/15/1982-12/27/1983, 03/01/1986-06/01/1986

Contacts
RolePersonStartDateStopDateNote
1.DataProducerspase://SMWG/Person/Cheryl.Y.Huang
InformationURL
PriorIDs
spase://VSPO/NumericalData/SPMS-00308
spase://VSPO/NumericalData/ISEE1/LEPEDEA/PT128S
AccessInformation
RepositoryID
Availability
Offline
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
Format
Binary
DataExtent
Quantity
15
Units
GB
Acknowledgement
Please acknowledge the PI, Dr. Louis Frank, the data preparer, Dr. Cheryl Huang, and the NSSDC
ProcessingLevel
Calibrated
InstrumentIDs
MeasurementType
EnergeticParticles
TemporalDescription
TimeSpan
StartDate
1977-11-01 00:00:00
StopDate
1986-06-01 00:00:00
Note
There are no data for 1/1/1981-10/14/1982 or for 12/28/1983-02/28/86.
Cadence
PT128S
ObservedRegion
Earth.Magnetosheath
ObservedRegion
Earth.Magnetosphere
ObservedRegion
Heliosphere.NearEarth
Parameter #1
Name
Proton distribution function
Description

proton fluxes at 32 energy steps, 16 azimuthal directions and 5 (1977-1980) or 6 (1982-1986) latitudinal look directions.

Cadence
PT128S
Structure
Size
32 16 5
Description

The proton distribution is distributed across 32 records, one per energy step. Each record contains 2 (protons, electrons) x 16 x 5 (1977-1980; x 6 for 1982-1986) values.

Particle
ParticleType
Proton
ParticleQuantity
NumberFlux
EnergyRange
Low
1
High
45000
Units
eV
Parameter #2
Name
Electron distribution function
Description

electon fluxes at 32 energy steps, 16 azimuthal directions and 5 (1977-1980) or 6 (1982-1986) latitudinal look directions.

Cadence
PT128S
Structure
Size
32 16 5
Description

The electon distribution is distributed across 32 records, one per energy step. Each record contains 2 (protons, electrons) x 16 x 5 (1977-1980; x 6 for 1982-1986) values.

Particle
ParticleType
Electron
ParticleQuantity
NumberFlux
EnergyRange
Low
1
High
45000
Units
eV
Parameter #3
Name
Spacecraft location
Description

GSE x,y,z components of position vector

Cadence
PT128S
Units
km
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Description

GSE x,y,z components of position vector

Support
SupportQuantity
Positional