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Data Access
Ulysses Final Archive Access to COSPIN/HET 10 min Average Ion and Electron Eight-Sectored Coincidence Counting Rates
Ulysses Cosmic Ray and Solar Particle Investigation (COSPIN) High Energy Telescope (HET) Ion and Electron Eight-Sectored Coincidence Counting Rates in ASCII Format, 10 min Data
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(2025).
Ulysses Cosmic Ray and Solar Particle Investigation (COSPIN) High Energy Telescope (HET) Ion and Electron Eight-Sectored Coincidence Counting Rates in ASCII Format, 10 min Data.
[Data set].
Planetary Data System; Space Physics Data Facility; European Space Astronomy Centre.
https://doi.org/10.48322/wtn4-ka79. Accessed on document.write(currentDateStr);.
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ResourceID
spase://NASA/NumericalData/Ulysses/COSPIN/HET/Rates/Sectored/PT10M
Description
This Data Set contains 10 min Average Ion and Electron Eight-Sectored Coincidence Counting Rates from the COSPIN High Energy Telescope (HET). These Data provide a Measure of the Anisotropy of Particle Arrival Directions in the Spacecraft Spin Plane
Metadata Rights
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Creative Commons Zero v1.0 Universal
Note
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Version:2.7.1
NumericalData
ResourceID
spase://NASA/NumericalData/Ulysses/COSPIN/HET/Rates/Sectored/PT10M
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
Ulysses Cosmic Ray and Solar Particle Investigation (COSPIN) High Energy Telescope (HET) Ion and Electron Eight-Sectored Coincidence Counting Rates in ASCII Format, 10 min Data
AlternateName
COSPIN-HET-SECTORED-RATES-PT10M
DOI
https://doi.org/10.48322/wtn4-ka79
ReleaseDate
2026-07-21 12:08:15Z
RevisionHistory
RevisionEvent
ReleaseDate
2020-07-07 21:15:40Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-11-14 16:03:04Z
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 13:32:09Z
Note
Added MetadataRightsList. Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-02-15 21:20:18Z
Note
Added DOI. TLK
RevisionEvent
ReleaseDate
2026-06-26 13:30:04Z
Note
Add 'Z' to TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB
RevisionEvent
ReleaseDate
2026-07-21 12:08:15Z
Note
Added HelioData InformationURL. JWL
Description
This Data Set contains 10 min Average Ion and Electron Eight-Sectored Coincidence Counting Rates from the COSPIN High Energy Telescope (HET). These Data provide a Measure of the Anisotropy of Particle Arrival Directions in the Spacecraft Spin Plane
Acknowledgement
Please acknowledge R. Bruce McKibben, Space Science Center, University of New Hampshire
PublicationInfo
Authors
McKibben, R. B.; Connell, James; Zhang, Ming
PublicationDate
2025-11-14 16:03:04Z
PublishedBy
Planetary Data System; Space Physics Data Facility; European Space Astronomy Centre
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigatorDataProducer
spase://SMWG/Person/R.Bruce.McKibben
2.
CoInvestigator
spase://SMWG/Person/James.Connell
3.
CoInvestigator
spase://SMWG/Person/Ming.Zhang
4.
ArchiveSpecialist
spase://SMWG/Person/Cecil.Tranquille
InformationURL
Name
The Ulysses Cosmic Ray and Solar Particle Investigation, COSPIN
URL
http://ufa.esac.esa.int/ufa/#instruments
Description
Published Description of the COSPIN Instrumentation, J.A. Simpson et al., Astron. Astrophys. Suppl. Ser. 92, 365-399, 1992. See especially Section 4.3 for a detailed Description of the High Energy Telescopes, HET. An electronic Copy of this Paper is available at http://adsbit.harvard.edu/cgi-bin/nph-iarticle_query?1992A%26AS...92..365S&defaultprint=YES&filetype=.pdf.
InformationURL
Name
User Notes for the COSPIN/HET Data Files
URL
http://ufa.esac.esa.int/ufa-sl-server/data-action?PROTOCOL=HTTP&PRODUCT_TYPE=ALL&FILE_NAME=het_usernotes.pdf&FILE_PATH=/ufa/HiRes/doc/cospin
Description
The User Notes File at the Ulysses Final Archive (UFA) describes the Format of the ASCII Data Files for the COSPIN High Energy Telescope, HET, 10 min Average Ion and Electron Eight-Sectored Counting Rates
InformationURL
Name
HelioData
URL
https://helio.data.nasa.gov/dataset/Ulysses_COSPIN_HET_Rates_Sectored_PT10M
Description
The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more.
Association
AssociationID
spase://NASA/NumericalData/Ulysses/COSPIN/HET/Rates/SpinAveraged/PT10M
AssociationType
PartOf
PriorIDs
spase://VEPO/NumericalData/Ulysses/COSPIN/HET/Sectored-Rates/PT10M
spase://VSPO/NumericalData/Ulysses/COSPIN/HET/Rates/Sectored/PT10M
AccessInformation
RepositoryID
spase://SMWG/Repository/ESA/ESAC/UlyssesFinalArchive
Availability
Online
AccessRights
Open
AccessURL
Name
Ulysses Final Archive Access to COSPIN/HET 10 min Average Ion and Electron Eight-Sectored Coincidence Counting Rates
URL
http://ufa.esac.esa.int/ufa/#data
Description
Parent Directory containing compressed Archives with Naming Convention coshetaYY.zip, where YY indicates the two digit Year corresponding to the Data in the File. Each Archive contains Daily ASCII Files with Naming Convention ucoshetrYYDDD.uly where YY and DOY are the two digit Year and the three digit Day of Year (January 1 = 1) containing COSPIN/HET nominally 10 min Averages of the Eight-Sectored Counting Rates H45S and H7S, which, as described in individual Description Fields, respond primarily to Protons (H45S) in the Energy Range 34-92 MeV and to Electrons (H7S) in the approximate Energy Range 5-10 MeV. The actual Accumulation Intervals contributing to an Average consist of an Integral Number of Telemetry Subcomm Sequences, and correspond to all Subcomm Sequences which start in the nominal 10 min reporting Interval. The minimum Time corresponding to one Subcomm Sequence is 256 s at 1024 bps, the most Common Science Telemetry Rate. Thus the actual Start Time of the Accumulation may be up to 256 s later than the Start Time of the Nominal Interval. Similarly, the End Time of the Accumulation may extend up to 256 s beyond the End of the Nominal Interval. These Data are therefore not useful for highly accurate Timing Studies.
Format
Text
Encoding
ZIP
Acknowledgement
Please acknowledge R. Bruce McKibben, Space Science Center, University of New Hampshire
InstrumentIDs
spase://SMWG/Instrument/Ulysses/COSPIN/HET
MeasurementType
EnergeticParticles
TemporalDescription
TimeSpan
StartDate
1990-10-22 00:00:00.000Z
StopDate
2009-06-10 23:59:59.999Z
Cadence
PT10M
ObservedRegion
Heliosphere.Outer
Parameter #1
Name
Time for the record
ParameterKey
Time_PG1
Description
Nominal Start Time for the average given in Year, Day of Year, Hour, Minute, and Seconds.
Cadence
PT10M
Structure
Size
5
Element
Name
Year
Index
1
ValidMin
1990
ValidMax
2008
FillValue
Null
Element
Name
Day of Year
Index
2
ValidMin
1
ValidMax
366
FillValue
Null
Element
Name
Hour of Day
Index
3
ValidMin
0
ValidMax
23
FillValue
Null
Element
Name
Minute of Hour
Index
4
ValidMin
0
ValidMax
59
FillValue
Null
Element
Name
Seconds of Minute
Index
5
ValidMin
0
ValidMax
59
FillValue
Null
Support
SupportQuantity
Temporal
Parameter #2
Name
COSPIN/HET 10-Minute Average Proton Counting Rate H45S
ParameterKey
H45S
Description
Nominal 10-minute average HET counting rate normally responding primarily to protons between 34 and 92 MeV in spin sectors 1-8. The rate has 8 elements, each corresponding to a 45° range of the spacecraft spin plane. The start of sector 1 (0°) is coincident with the spacecraft-generated Sun-pulse, and the start of each subsequent sector is shifted by 45° with respect to the preceding sector. For example, H45S1 covers the azimuthal range 0° to 45°, H45S2 covers the azimuthal range 45° to 90°, etc. In each sector, counts are registered only when the Axis of the Telescope view cone is within that sector. Rate channel H45S is a coincidence counting rate requiring coincident signals in detectors at least as deep in the stack as K1 (D7), and no signals from detectors deeper in the stack than K6 (D12). Data from multiple spacecraft spins contribute to the counting rates recorded for each sector, and the total accumulation time for the set of H45S1-H45S8 rates is required to be an integral number of spacecraft spins. Therefore the total accumulation time in each of the 8 sectors is 1/8 of the total time interval for the average.
Caveats
Since counts are registered based only on energy loss exceeding a certain threshold, there may in addition from time to time be significant contamination from high fluxes of high energy electrons. Nuclei with Z>1 with equivalent penetrating power to the protons in the nominal energy range are also counted, but rarely make significant contributions to the rate. The timing of the accumulation intervals is not commensurate with the nominal 10 minute grid. Counting rates reported here have a minimum time resolution of one telemetry subcomm sequence (256 s at 1024 bps, the most common science telemetry rate). The actual start time of the accumulation may therefore be up to 255 s later than the start time of the nominal interval. Similarly, the end time of the accumulation may extend up to 255 s beyond the end of the nominal interval.
Cadence
PT10M
Structure
Size
8
Element
Name
H45S1
Index
1
ValidMin
0.0
ValidMax
1000000
FillValue
-1.000E+00
Element
Name
H45S2
Index
2
ValidMin
0.0
ValidMax
1000000
FillValue
-1.000E+00
Element
Name
H45S3
Index
3
ValidMin
0.0
ValidMax
1000000
FillValue
-1.000E+00
Element
Name
H45S4
Index
4
ValidMin
0.0
ValidMax
1000000
FillValue
-1.000E+00
Element
Name
H45S5
Index
5
ValidMin
0.0
ValidMax
1000000
FillValue
-1.000E+00
Element
Name
H45S6
Index
6
ValidMin
0.0
ValidMax
1000000
FillValue
-1.000E+00
Element
Name
H45S7
Index
7
ValidMin
0.0
ValidMax
1000000
FillValue
-1.000E+00
Element
Name
H45S8
Index
8
ValidMin
0.0
ValidMax
1000000
FillValue
-1.000E+00
Particle
ParticleType
Proton
Qualifier
Average
ParticleQuantity
Counts
EnergyRange
Low
34
High
92
Units
MeV
Parameter #3
Name
COSPIN/HET 10-Minute Average Proton Counting Rate H7S
ParameterKey
H7S
Description
Nominal 10-minute average HET counting rate normally responding primarily to electrons between 5 and 10 MeV in spin sectors 1-8. The start of sector 1 (0°) is coincident with the spacecraft-generated Sun-pulse, and the start of each subsequent sector is shifted by 45° with respect to the preceding sector. For example, H45S1 covers the azimuthal range 0° to 45°, H45S2 covers the azimuthal range 45° to 90°, etc. In each sector, counts are registered only when the Axis of the Telescope view cone is within that sector. Counting rate H7S requires coincident but small signals in D1 and D2, as well as energy losses in detectors at least as deep in the stack as K1 (D7), with no losses registered in K4 (D10) or detectors deeper in the stack. Electrons are identified by requiring low energy losses, consistent with a minimum ionizing particle, in the front detectors, D1 and D2, of the HET, and, at the same time, a limited range in the detector stack. The counting rate logic thus strongly discriminates against contamination from nuclei of any charge. Data from multiple spacecraft spins contribute to the counting rates recorded for each sector, and the total accumulation time for the set of H7S1-H7S8 rates is required to be an integral number of spacecraft spins. Therefore the total accumulation time in each of the 8 sectors is 1/8 of the total time interval for the average.
Caveats
The timing of the accumulation intervals is not commensurate with the nominal 10 minute grid. Counting rates reported here have a minimum time resolution of one telemetry subcomm sequence (256 s at 1024 bps, the most common science telemetry rate). The actual start time of the accumulation may therefore be up to 255 s later than the start time of the nominal interval. Similarly, the end time of the accumulation may extend up to 255 s beyond the end of the nominal interval.
Cadence
PT10M
Structure
Size
8
Element
Name
H7S1
Index
1
ValidMin
0.0
ValidMax
1000000
FillValue
-1.000E+00
Element
Name
H7S2
Index
2
ValidMin
0.0
ValidMax
1000000
FillValue
-1.000E+00
Element
Name
H7S3
Index
3
ValidMin
0.0
ValidMax
1000000
FillValue
-1.000E+00
Element
Name
H7S4
Index
4
ValidMin
0.0
ValidMax
1000000
FillValue
-1.000E+00
Element
Name
H7S5
Index
5
ValidMin
0.0
ValidMax
1000000
FillValue
-1.000E+00
Element
Name
H7S6
Index
6
ValidMin
0.0
ValidMax
1000000
FillValue
-1.000E+00
Element
Name
H7S7
Index
7
ValidMin
0.0
ValidMax
1000000
FillValue
-1.000E+00
Element
Name
H7S8
Index
8
ValidMin
0.0
ValidMax
1000000
FillValue
-1.000E+00
Particle
ParticleType
Electron
Qualifier
Average
ParticleQuantity
Counts
EnergyRange
Low
5
High
10
Units
MeV
Parameter #4
Name
Floating Point Time for the record
ParameterKey
FP_Time
Description
Time for the record given as Floating Point Year since 1900 and Floating point Day of Year. The given time represents the beginning of the nominal averaging interval.
Cadence
PT10M
Structure
Size
2
Element
Name
FP Year
Index
1
ValidMin
90.800
ValidMax
108.99999
FillValue
Null
Element
Name
FP Day of Year
Index
2
ValidMin
1
ValidMax
366.999
FillValue
Null
Support
SupportQuantity
Temporal