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ISEE 1 Solar Wind Analyzer 24-s Plasma Parameters

ResourceID
spase://NASA/NumericalData/ISEE1/FPE/PT24S

Description

This data set contains 24s (fast data rate) or 48s (slow
rate) solar wind ion plasma parameters obtained during 1977-1983 solar wind
seasons (~July - ~January) when the spacecraft's local time of apogee was on
the Earth's dayside. Plasma parameters include ion density, flow speed, flow
longitude and latitude angles, perpendicular (minimum) and parallel (maximum)
temperatures, and alpha-to-proton density ratio. Data are available through
the CDAWeb interface and, as daily files via ftp, in ASCII from nssdcftp and
in CDF from CDAWeb's ftp area. The data are from LANL's Cross-Fan Solar Wind
Ion Experiment, a companion to LANL's Fast Plasma Analyzer (FPE).

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Details

Version:2.2.9

NumericalData

ResourceID
spase://NASA/NumericalData/ISEE1/FPE/PT24S
ResourceHeader
ResourceName
ISEE 1 Solar Wind Analyzer 24-s Plasma Parameters
ReleaseDate
2020-07-07 21:14:39Z
Description

This data set contains 24s (fast data rate) or 48s (slow
rate) solar wind ion plasma parameters obtained during 1977-1983 solar wind
seasons (~July - ~January) when the spacecraft's local time of apogee was on
the Earth's dayside. Plasma parameters include ion density, flow speed, flow
longitude and latitude angles, perpendicular (minimum) and parallel (maximum)
temperatures, and alpha-to-proton density ratio. Data are available through
the CDAWeb interface and, as daily files via ftp, in ASCII from nssdcftp and
in CDF from CDAWeb's ftp area. The data are from LANL's Cross-Fan Solar Wind
Ion Experiment, a companion to LANL's Fast Plasma Analyzer (FPE).

Acknowledgement
Please acknowledge the FPE PI, Dr. John Gosling
Contacts
RolePerson
1.PrincipalInvestigatorspase://SMWG/Person/John.T.Gosling
InformationURL
Name
Readme file at SPDF
URL
ftps://spdf.gsfc.nasa.gov/pub/data/isee/isee1/plasma_lanl/aareadme.txt
PriorIDs
spase://VMO/NumericalData/ISEE1/FPE/PT24S
spase://VSPO/NumericalData/ISEE1/FPE/PT24S
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Online
AccessRights
Open
AccessURL
Name
FTP access to CDFs at SPDF
URL
ftps://spdf.gsfc.nasa.gov/pub/data/isee/isee1/isee1_cdaweb/24or48s_fpe/
Description

For ftp retrieval of daily CDF files

AccessURL
Name
HTTP access to CDFs at SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/isee/isee1/isee1_cdaweb/24or48s_fpe/
Description

In CDF via HTTP from SPDF

Format
CDF
DataExtent
Quantity
100
Units
KB
Per
P1D
Acknowledgement
Please acknowledge the FPE PI, Dr. John Gosling and the Space Physics Data Facility at NASA/GSFC
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb
URL
https://cdaweb.sci.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=ISEE1_H2_FPE&index=sp_phys
ProductKey
ISEE1_H2_FPE
Description

For CDAWeb subset, plot and list capabilities

AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/isee/isee1/plasma_lanl/xfan_ascii/
Description

For ftp retrieval of daily ASCII files

AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/isee/isee1/plasma_lanl/xfan_ascii/
Description

In CDF via HTTP from SPDF

Format
Text
DataExtent
Quantity
100
Units
KB
Per
P1D
Acknowledgement
Please acknowledge the FPE PI, Dr. John Gosling and the Space Physics Data Facility at NASA/GSFC
ProcessingLevel
Calibrated
InstrumentIDs
spase://SMWG/Instrument/ISEE1/FPE
MeasurementType
ThermalPlasma
TemporalDescription
TimeSpan
StartDate
1977-10-30 00:00:00
StopDate
1984-01-30 00:00:00
Cadence
PT24S
ObservedRegion
Heliosphere.NearEarth
Parameter #1
Name
Plasma Ion Density
ParameterKey
DEN
Cadence
PT24S
Units
1/cc
Particle
ParticleType
Ion
ParticleQuantity
NumberDensity
Parameter #2
Name
Plasma Flow Speed
ParameterKey
Speed
Cadence
PT24S
Units
km/s
Particle
ParticleType
Ion
ParticleQuantity
FlowSpeed
Parameter #3
Name
Plasma Flow Azimuth
ParameterKey
Azimuth
Description

Zero degrees is flow from the sun, aberration-
corrected. Positive for flow towards dawn

Cadence
PT24S
Units
deg
Particle
ParticleType
Ion
Qualifier
DirectionAngle.AzimuthAngle
ParticleQuantity
FlowVelocity
Parameter #4
Name
Plasma Flow Elevation
ParameterKey
Latitude
Description

Zero degrees for flow in ecliptic plane.
Positive for flow towards south

Cadence
PT24S
Units
deg
Particle
ParticleType
Ion
Qualifier
DirectionAngle.ElevationAngle
ParticleQuantity
FlowVelocity
Parameter #5
Name
Temperature Minimum
ParameterKey
Tmin
Description

Temperature minimum, typically T-perp.

Cadence
PT24S
Units
deg K
Particle
ParticleType
Ion
Qualifier
Minimum
ParticleQuantity
Temperature
Parameter #6
Name
Temperature Maximum
ParameterKey
Tmax
Description

Temperature minimum, typically T-parallel.

Cadence
PT24S
Units
deg K
Particle
ParticleType
Ion
Qualifier
Maximum
ParticleQuantity
Temperature
Parameter #7
Name
Alpha to proton density ratio
ParameterKey
Alpha_p
Description

Alpha particle to proton density ratio, often
not determinable

Cadence
PT24S
Particle
ParticleType
AlphaParticle
Qualifier
Ratio
ParticleQuantity
NumberDensity