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Data Access
FTPS from SPDF (not with most browsers)
HTTPS from SPDF
ISEE 3 Isotopic Fractions
var authors='Wiedenbeck, Mark E.';
document.write(authors);
(2025).
ISEE 3 Isotopic Fractions.
[Data set].
Space Physics Data Facility.
https://doi.org/10.48322/kf5j-wz44. Accessed on document.write(currentDateStr);.
Note: Proper references, including
Copy BibTeX Citation
or other formats, should include the "Accessed on date" to identify the version of the resource being cited in a given publication.
ResourceID
spase://NASA/NumericalData/ISEE3/IsotFrac
Description
This data product consists of a single ASCII file
containing values and their uncertainties for isotopic fractions of 56
specific isotopes relative to isotope-integrated elemental abundances,
for 15 elements (Be, B, N, S, Cl, Ar, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni).
Between this data product and a companion product with isotopic abundance
ratios, isotopic composition information is given for 21 chemical elements.
The fractions are based on 1978-1981 observations of ~50-500 MeV/n cosmic
rays by the U. Chicago cosmic ray experiment on ISEE 3. Each of the ratios
is linked in the ASCII file to the publication where its derivation is
discussed.
Metadata Rights
CC0-1.0:
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions. The actual data/software may be subject to a different license.
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Details
Version:2.7.1
NumericalData
ResourceID
spase://NASA/NumericalData/ISEE3/IsotFrac
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
ISEE 3 Isotopic Fractions
DOI
https://doi.org/10.48322/kf5j-wz44
ReleaseDate
2026-02-18 18:12:08Z
RevisionHistory
RevisionEvent
ReleaseDate
2025-05-15 18:39:11Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-11-14 16:02:26Z
Note
Added PublicationInfo. Added ResourceType and NamingAuthority. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:29:38Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-02-18 18:12:08Z
Note
Added DOI. tlk
Description
This data product consists of a single ASCII file
containing values and their uncertainties for isotopic fractions of 56
specific isotopes relative to isotope-integrated elemental abundances,
for 15 elements (Be, B, N, S, Cl, Ar, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni).
Between this data product and a companion product with isotopic abundance
ratios, isotopic composition information is given for 21 chemical elements.
The fractions are based on 1978-1981 observations of ~50-500 MeV/n cosmic
rays by the U. Chicago cosmic ray experiment on ISEE 3. Each of the ratios
is linked in the ASCII file to the publication where its derivation is
discussed.
Acknowledgement
Please acknowledge the author(s) of the relevant
publication(s) as mentioned above, and acknowledge Mark Wiedenbeck, the
ISEE 3 instrument Principal Investigator.
PublicationInfo
Authors
Wiedenbeck, Mark E.
PublicationDate
2025-11-14 16:02:26Z
PublishedBy
Space Physics Data Facility
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/Mark.E.Wiedenbeck
InformationURL
Name
subdirectory holding ISEE 3 cosmic ray data
URL
https://spdf.gsfc.nasa.gov/pub/data/isee/isee3/energetic_particles_cr/cr_composition/
PriorIDs
spase://VEPO/NumericalData/ISEE3/IsotFrac
spase://VSPO/NumericalData/ISEE3/IsotFrac
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/isee/isee3/energetic_particles_cr/cr_composition/table2.txt
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/isee/isee3/energetic_particles_cr/cr_composition/table2.txt
Description
In CDF via HTTP from SPDF
Format
Text
DataExtent
Quantity
3
Units
KB
Acknowledgement
Please acknowledge the author(s) of the relevant publication(s) as mentioned above, and acknowledge Mark Wiedenbeck, the ISEE 3 instrument Principal Investigator.
InstrumentIDs
spase://SMWG/Instrument/ISEE3/HECR
MeasurementType
EnergeticParticles
MeasurementType
IonComposition
TemporalDescription
TimeSpan
StartDate
1978-08-18 00:00:00
StopDate
1981-04-30 00:00:00
Note
This is span of data used in deriving 32-month averaged ratios
Cadence
P32M
ObservedRegion
Heliosphere.NearEarth