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Data Access
Ulysses Final Archive Access to COSPIN/HET Full Resolution Proton Counts and Accumulation Times for Eight-Sectored Coincidence Counting Rates, SECT2 H45S
Ulysses Cosmic Ray and Solar Particle Investigation (COSPIN) High Energy Telescope (HET) Full Resolution Proton Counts and Accumulation Times for Eight-Sectored Coincidence Counting Rates, SECT2 H45S, 128 s Data
var authors='McKibben, R. B.; Connell, James';
document.write(authors);
(2025).
Ulysses Cosmic Ray and Solar Particle Investigation (COSPIN) High Energy Telescope (HET) Full Resolution Proton Counts and Accumulation Times for Eight-Sectored Coincidence Counting Rates, SECT2 H45S, 128 s Data.
[Data set].
Planetary Data System; Space Physics Data Facility; European Space Astronomy Centre.
https://doi.org/10.48322/ha0m-9v06. Accessed on document.write(currentDateStr);.
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ResourceID
spase://NASA/NumericalData/Ulysses/COSPIN/HET/Rates/Sect2/PT128S
Description
A Directory containing Daily FTP downloadable Files containing Readout-by-Readout Listings of the Counts accumulated in each Spin Sector of the Eight-Sectored H45S Counting Rate. Aside from its Division of Counts into Spin Sectors, H45S is a Coincidence Counting Rate with Coincidence Logic Requirements satisfying the Logical inclusive OR of the H4 and H5 Spin-Averaged Counting Rates. Therefore the H45S Counting Rate responds primarily to Protons in the approximate Energy Range 34-92 MeV. The Naming Convention for the Daily Files is uly_het_full_rat_sect2_YYYDDD.txt, where YYY indicates the three digit Year since 1900 (e.g. YYY=090 for 1990, and YYY=102 for 2002) and DDD indicates the three digit Day of Year (January 1 = 1). In each File, following a detailed Description of the Format, the Data consist of a Readout by Readout Listing of Counts accumulated in the eight 45° Spin Sectors of the Sectored Counting Rate H45S during the Intervals between successive Readouts, organized into Columns as described below. The first four Columns give the Start Time of the Counting Rate Accumulation Period for Sector 7 of the Rate as Fractional Year (to 12 Decimal Places) and as Year since 1900, Day of Year, and Milliseconds of Day at the Start of the Accumulation, followed by one Column (labeled cov) giving the Duration of the total Accumulation Period for all eight Sectors in Milliseconds. Thus the Accumulation Period in each of the Sectors is the Value given in the "cov" Column divided by eight. The Accumulation in each of the successive Sectors 7,8,1,2,3,4,5, and 6 starts cov/8 Milliseconds after the Start of the Accumulation in the previous Sector. Columns 6-13 then give the Counts accumulated in each of the eight Sectors during the Accumulation Period. Each Line contains Data for one single Readout Accumulation of the eight Sectors of H45S. Since the Accumulation Period for each Readout is forced to include an Integral Number of Spacecraft Spins in order to produce equal Coverage in all Sectors, the Lengths of the Accumulation Periods vary in a Cyclic Manner as the Period of the Telemetry Cycle beats with the Spacecraft Spin Period. The H45S Counting Rate is fully read out every 128 s at the most common Science Telemetry Bit Rate (2048 bps). Thus, with a typical 5 rpm Spacecraft Spin Rate the Accumulation Intervals vary in a repeating Cycle of 132, 132, 120, 132, 132, 120, etc., seconds. At lower Bit Rates the Average Interval is equal to 128 times (2048/BR) seconds and the Cycle automatically adjusts to produce this Average Accumulation. The Spin Plane of the Ulysses Spacecraft, in which the Sectors are defined, is normal to the Spin Axis (Spacecraft +Z Axis), which is maintained within one to 2° of Earth pointing at all Times. Viewed from Earth the Spacecraft spins Counter Clockwise. The Start of Sector 1 is defined by the Spacecraft Generated Sun Pulse, which is issued when the Sun crosses the +X/+Z Quadrant of the X/Z Plane. The HET Telescope Axis is parallel to the +X Axis and normal to the Z Axis. No Noise Removal or Despiking has been done, so Caution must be used in interpreting isolated large Increases or Decreases in the Counting Rates.
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/Ulysses/COSPIN/HET/Rates/Sect2/PT128S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
Ulysses Cosmic Ray and Solar Particle Investigation (COSPIN) High Energy Telescope (HET) Full Resolution Proton Counts and Accumulation Times for Eight-Sectored Coincidence Counting Rates, SECT2 H45S, 128 s Data
DOI
https://doi.org/10.48322/ha0m-9v06
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
A Directory containing Daily FTP downloadable Files containing Readout-by-Readout Listings of the Counts accumulated in each Spin Sector of the Eight-Sectored H45S Counting Rate. Aside from its Division of Counts into Spin Sectors, H45S is a Coincidence Counting Rate with Coincidence Logic Requirements satisfying the Logical inclusive OR of the H4 and H5 Spin-Averaged Counting Rates. Therefore the H45S Counting Rate responds primarily to Protons in the approximate Energy Range 34-92 MeV. The Naming Convention for the Daily Files is uly_het_full_rat_sect2_YYYDDD.txt, where YYY indicates the three digit Year since 1900 (e.g. YYY=090 for 1990, and YYY=102 for 2002) and DDD indicates the three digit Day of Year (January 1 = 1). In each File, following a detailed Description of the Format, the Data consist of a Readout by Readout Listing of Counts accumulated in the eight 45° Spin Sectors of the Sectored Counting Rate H45S during the Intervals between successive Readouts, organized into Columns as described below. The first four Columns give the Start Time of the Counting Rate Accumulation Period for Sector 7 of the Rate as Fractional Year (to 12 Decimal Places) and as Year since 1900, Day of Year, and Milliseconds of Day at the Start of the Accumulation, followed by one Column (labeled cov) giving the Duration of the total Accumulation Period for all eight Sectors in Milliseconds. Thus the Accumulation Period in each of the Sectors is the Value given in the "cov" Column divided by eight. The Accumulation in each of the successive Sectors 7,8,1,2,3,4,5, and 6 starts cov/8 Milliseconds after the Start of the Accumulation in the previous Sector. Columns 6-13 then give the Counts accumulated in each of the eight Sectors during the Accumulation Period. Each Line contains Data for one single Readout Accumulation of the eight Sectors of H45S. Since the Accumulation Period for each Readout is forced to include an Integral Number of Spacecraft Spins in order to produce equal Coverage in all Sectors, the Lengths of the Accumulation Periods vary in a Cyclic Manner as the Period of the Telemetry Cycle beats with the Spacecraft Spin Period. The H45S Counting Rate is fully read out every 128 s at the most common Science Telemetry Bit Rate (2048 bps). Thus, with a typical 5 rpm Spacecraft Spin Rate the Accumulation Intervals vary in a repeating Cycle of 132, 132, 120, 132, 132, 120, etc., seconds. At lower Bit Rates the Average Interval is equal to 128 times (2048/BR) seconds and the Cycle automatically adjusts to produce this Average Accumulation. The Spin Plane of the Ulysses Spacecraft, in which the Sectors are defined, is normal to the Spin Axis (Spacecraft +Z Axis), which is maintained within one to 2° of Earth pointing at all Times. Viewed from Earth the Spacecraft spins Counter Clockwise. The Start of Sector 1 is defined by the Spacecraft Generated Sun Pulse, which is issued when the Sun crosses the +X/+Z Quadrant of the X/Z Plane. The HET Telescope Axis is parallel to the +X Axis and normal to the Z Axis. No Noise Removal or Despiking has been done, so Caution must be used in interpreting isolated large Increases or Decreases in the Counting Rates.
Acknowledgement
Please acknowledge the COSPIN HET Lead Investigator and COSPIN PI, R. Bruce McKibben
PublicationInfo
Authors
McKibben, R. B.; Connell, James
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.
PrincipalInvestigatorTeamLeader
spase://SMWG/Person/R.Bruce.McKibben
2.
DataProducer
spase://SMWG/Person/Clifford.Lopate
3.
CoInvestigator
spase://SMWG/Person/James.Connell
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
InformationURL
Name
COSPIN HET Full Resolution ReadMe Document, Word Format
URL
http://ufa.esac.esa.int/ufa-sl-server/data-action?PROTOCOL=HTTP&PRODUCT_TYPE=ALL&FILE_NAME=ReadMeHETFullRes.doc&FILE_PATH=/ufa/HiRes/COSPIN/HET
Description
Top Level Descriptions of Formats and Contents of the six File Types that make up the COSPIN HET Full Resolution Data Set. Detailed Descriptions of the Formats and Contents are found in Header Lines at the Start of each downloaded Data File. The Data covered by this SPASE Description are described in the ReadMe under the Heading sect2. (*** Note ***: During the Build-up of this Data Set, a few Errors and Omissions have been found in the Header Lines for some of the File Types. These Errors and Omissions are listed in this ReadMe File. Upon Completion of the Data Set, all Errors and Omissions discovered will be corrected in all of the Header Lines of all of the File Types at which time this Note will be removed).
InformationURL
Name
HelioData
URL
https://helio.data.nasa.gov/dataset/Ulysses_COSPIN_HET_Rates_Sect2_PT128S
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/Omni1/PT12S
AssociationType
Other
Association
AssociationID
spase://NASA/NumericalData/Ulysses/COSPIN/HET/Rates/Omni2/PT128S
AssociationType
Other
Association
AssociationID
spase://NASA/NumericalData/Ulysses/COSPIN/HET/Rates/Sect1/PT64S
AssociationType
Other
PriorIDs
spase://VEPO/NumericalData/Ulysses/COSPIN/HET/FullResolution/Rates/Sect2
spase://VSPO/NumericalData/Ulysses/COSPIN/HET/Rates/Sect2/PT128S
AccessInformation
RepositoryID
spase://SMWG/Repository/ESA/ESAC/UlyssesFinalArchive
Availability
Online
AccessRights
Open
AccessURL
Name
Ulysses Final Archive Access to COSPIN/HET Full Resolution Proton Counts and Accumulation Times for Eight-Sectored Coincidence Counting Rates, SECT2 H45S
URL
http://ufa.esac.esa.int/ufa/#data
Description
Parent Directory containing FTP downloadable Daily Files with the Format described below
Format
Text
Encoding
ASCII
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
2009-06-29 23:59:59.999Z
Cadence
PT128S
ObservedRegion
Heliosphere.Outer
Parameter #1
Name
Interval Start Time
Description
Nominal Start Time for the accumulation of counts in Sector 7, given in decimal year, integer year, Day of Year, and Milliseconds of Day.
Cadence
PT128S
Structure
Size
4
Element
Name
Decimal Year
Index
1
ParameterKey
Column_1
ValidMin
1990
ValidMax
2009
FillValue
0.00000000000
Element
Name
Year
Index
2
ParameterKey
Column_2
ValidMin
1990
ValidMax
2009
FillValue
0
Element
Name
Day of Year
Index
3
ParameterKey
Column_3
ValidMin
1
ValidMax
366
FillValue
0
Element
Name
Milliseconds of Day
Index
4
ParameterKey
Column_4
ValidMin
0
ValidMax
86400000
FillValue
0
Support
SupportQuantity
Temporal
Parameter #2
Name
Accumulation period
ParameterKey
Column_5
Description
Length of the summed accumulation periods for all 8 sectors in milli-seconds. This represents an integral number of spacecraft spin periods, most commonly 10 or 11 for H45S at 2048 bps.
Caveats
None
Cadence
PT128S
Units
millisecond
ValidMin
100000
ValidMax
1100000
FillValue
0
Support
SupportQuantity
Temporal
Parameter #3
Name
Counts per sector for COSPIN/HET Eight-Sectored Counting Rate H45S
Description
Counts accumulated in each of the 8 sectors of counting rate H45S during the accumulation period starting at the time given in columns 1-4 and with a duration as given in column 5. Each sector contains counts incident from a specific 45° sector of the 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. The H45S normally responds primarily to protons in the energy interval from about 34-92 MeV.
Caveats
Because the orbit of the spacecraft about the Sun lies in a plane inclined 80° to the heliographic equator, and because the spacecraft spin Axis (and thus the Axis of the high gain antenna) be pointed at Earth within 2° at all times, determination of the direction in space corresponding to the start of sector 1 can be complex. Depending upon conditions, H45S may also respond to heavier nuclei, primarily Helium in the energy range from about 34-92 MeV/n, and to electrons in the energy range from about 5-10 MeV. When significant electron contamination is present, the H7 spin-averaged rate and/or the H7S sectored rate should also be elevated and closely tracking the H45S rate.
Cadence
PT128S
Structure
Size
8
Element
Name
H45S1
Index
1
ParameterKey
Column_6
ValidMin
0
ValidMax
1000000
FillValue
-1
Element
Name
H45S2
Index
2
ParameterKey
Column_7
ValidMin
0
ValidMax
1000000
FillValue
-1
Element
Name
H45S3
Index
3
ParameterKey
Column_8
ValidMin
0
ValidMax
1000000
FillValue
-1
Element
Name
H45S4
Index
4
ParameterKey
Column_9
ValidMin
0
ValidMax
1000000
FillValue
-1
Element
Name
H45S5
Index
5
ParameterKey
Column_10
ValidMin
0
ValidMax
1000000
FillValue
-1
Element
Name
H45S6
Index
6
ParameterKey
Column_11
ValidMin
0
ValidMax
1000000
FillValue
-1
Element
Name
H45S7
Index
7
ParameterKey
Column_12
ValidMin
0
ValidMax
1000000
FillValue
-1
Element
Name
H45S8
Index
8
ParameterKey
Column_13
ValidMin
0
ValidMax
1000000
FillValue
-1
Particle
ParticleType
Proton
ParticleQuantity
Counts
EnergyRange
Low
34
High
92
Units
MeV