Data Access
This Data Set contains 10 min Average Ion and Electron Spin-Averaged Coincidence Counting Rates from the COSPIN High Energy Telescope (HET). The Parameter Keys in the Parameter Level Segments below are specifically relevant to the UFA accessible Versions of the Data.
Version:2.2.9
This Data Set contains 10 min Average Ion and Electron Spin-Averaged Coincidence Counting Rates from the COSPIN High Energy Telescope (HET). The Parameter Keys in the Parameter Level Segments below are specifically relevant to the UFA accessible Versions of the Data.
| Role | Person | |
|---|---|---|
| 1. | PrincipalInvestigator | 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 |
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.
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 Spin-Averaged Coincidence Counting Rates
Parent Directory containing compressed Archives with Naming Convention coshetYY.zip, where YY indicates the two digit Year corresponding to the Data in the File. Each Archive contains Daily ASCII Files with Naming Convention ucoshetaYYDDD.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 Spin-Averaged Rates H1-H13, which, as described in individual Description Fields, respond primarily to Electrons, Protons, and Ions with Z>2 in several Energy Ranges corresponding to Stopping Ranges in Si between 0.05 and 8.6 gm/cm^2. 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.
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HET Data Access via FTP in ASCII Format from SPDF
HET Data Access via HTTP in ASCII Format from SPDF
Nominal Start Time for the average given in Year, Day of Year, Hour, Minute, and Seconds.
Nominal 10-minute average HET spin-averaged counting rate responding primarily to 5-14 MeV protons.
Nominal 10-minute average HET spin-averaged counting rate responding primarily to protons between 14 and 19 MeV. Rate channel H2 is a coincidence counting rate, requiring coincident signals from the front 2 detectors of the HET (D1 and D2), and no energy loss in D3 or other detectors deeper in the detector stack.
Nominal 10-minute average HET spin-averaged proton Counting Rate responding primarily to protons between 24 and 31 MeV. Rate channel H3 is a coincidence counting rate requiring coincident signals from detectors D1, D2, and D4, but no signals from detector D6 or other detectors deeper in the detector stack.
Nominal 10-minute average HET spin-averaged counting rates responding primarily to protons between 34 and 68 MeV. Rate channel H4 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 K4 (D10).
Nominal 10-minute average HET spin-averaged proton rates responding primarily to protons between 68 and 92 MeV. Rate channel H5 is a coincidence counting rate requiring coincident signals in detectors at least as deep in the stack as K4 (D10), and no signals from detectors deeper in the stack than K6 (D12).
Nominal 10-minute average HET spin-averaged counting rate responding primarily to electrons in the very approximate energy range between 1 and 3 MeV. Counting rate H6 requires coincident but small signals in D1 and D2, and no energy losses in D3 or detectors deeper in the stack. Electrons are identified by requiring low energy losses, consistent with a minimum ionizing particle, in the front detectors of the HET, and, at the same time, a limited range in the detector stack.
Nominal 10-minute average HET spin-averaged counting rates responding primarily to electrons in the very approximate energy range 5-10 MeV. Counting rate H7 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 of the HET, and, at the same time, a limited range in the detector stack. There is therefore little contamination from energetic nuclei.
Nominal 10-minute average HET spin-averaged counting rates responding primarily to electrons in the very approximate energy range between 3 and 5 MeV. Counting rate H8 requires coincident but small signals in D1 and D2, as well as energy losses in detectors at least as deep in the stack as D4, with no losses registered in D6 or detectors deeper in the stack. Electrons are identified by requiring low energy losses, consistent with a minimum ionizing particle, in the front detectors of the HET, and, at the same time, a limited range in the detector stack. There is therefore little contamination from energetic nuclei.
Nominal 10-minute average HET spin-averaged counting rates responding primarily to the integral intensity of cosmic ray protons with energies above 92 MeV, which completely penetrate the detector stack (D1 through A (D13)) as determined by coincidence logic.
Nominal 10-minute average HET spin-averaged heavy ion (Z>2) counting rates for nuclei with penetrating power equivalent to 26-36 MeV/n Carbon. Rate channel H10 is a coincidence counting rate requiring coincidence of a very large signal in detector D1 and a significant signal (well above minimum ionizing) in D2, with no signals recorded from D3 or detectors deeper in the detector stack. Thresholds have been adjusted to exclude any possible contributions from electrons, protons, or helium nuclei.
Nominal 10-minute average HET spin-averaged heavy ion (Z>2) counting rates for nuclei with penetrating power equivalent to 44-127 MeV/n Carbon (Z=6). Rate channel H11 is a coincidence counting rate requiring coincident signals between D1 and detectors as deep in the detector stack as D4, but no deeper than K4 (D10), together with a very large signal in at least one of the triggered detectors deeper in the stack than D4. Thresholds have been adjusted to exclude any possible contributions from electrons, protons, or helium nuclei.
Nominal 10-minute average HET spin-averaged heavy ion (Z>2) counting rates for nuclei with penetrating power equivalent to 127-173 MeV/n Carbon (Z=6). Rate channel H12 is a coincidence counting rate requiring coincident signals between D1 and detectors as deep in the detector stack as K4 (D10), but no deeper than K6 (D12), together with a very large signal in at least one of the triggered detectors deeper in the stack than D4. Thresholds have been adjusted to exclude any possible contributions from electrons, protons, or helium nuclei. During an in-flight calibrate sequence, performed approximately monthly, a string of pulses is inserted at the inputs of the detector amplifiers, most of which satisfy the H12 logic. These periods have been removed from the data presented here, producing apparent gaps of, most commonly, 6 or more hours depending on bit rate.
Nominal 10-minute average HET spin-averaged heavy ion (Z>2) counting rates for nuclei with penetrating power equivalent to >173 MeV/n Carbon (Z=6), which completely penetrate the detector stack (D1 through A (D13)) as determined by coincidence logic and produce a very large signal in at least one of the detectors from D4 to K6 (D12).
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.