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Numerical Data Product: Nominal 10 minute average fluxes of protons and heavier nuclei from the Ulysses COSPIN High Flux Telescope (HFT)

Resource ID
spase://VEPO/NumericalData/Ulysses/COSPIN/HFT/Fluxes/PT10M Get XML
Name
Nominal 10 minute average fluxes of protons and heavier nuclei from the Ulysses COSPIN High Flux Telescope (HFT)
Alternate name
Ulysses COSPIN HFT 10 minute average fluxes of energetic (MeV) nuclei
Description

Nominal 10 minute average spin-averages and sectored counting-rate-based fluxes of energetic protons and heavier nuclei from the Ulysses COSPIN High Flux Telescope

Additional information
The Ulysses cosmic ray and solar particle investigation

Published (J.A. Simpson et al., Astron. Astrophys. v92, pp365-399, 1992) description of the COSPIN Instrumentation. See especially section 4.4 for a detailed description of the HFT.

COSPIN/HFT User Notes

Identification of data channels archived and brief discussion of data structure

Acknowledgement

Please acknowledge the Lead HFT Investigator (Dr. J. David Anglin)

Contact
Role Person
1. CoInvestigator
Data producer
Team leader
spase://SMWG/Person/J.David.Anglin Get XML
Release date
2009-05-31 00:00:00
Repository
Name
UDS Get XML
Availability
Online
Access rights
Open
URL
Ulysses COSPIN/HFT 10-Minute Spin-Average Counting Rate Data

Parent directory containing yearly downloadable .zip compressed subdirectories with naming convention coshftYY.zip, where YY indicates the two digit year corresponding to the data in the subdirectory. Each subdirectory contains daily ascii files with naming convention ucoshftaYYDDD.dat where YY and DOY are the two digit year and the three digit day of year (Jan. 1 = 1). Each file contains nominally 10-minute averages of HFT counting-rate-based fluxes of protons and heavier nuclei from the COSPIN High Flux Telescope. The data are presented in flux units, (s cmsq sr MeV/n)^-1. Of the 22 data channels presented, 21 provide spin-averaged fluxes, and one proton channel is accumulated in 32 spin-sectors. Therefore each tab-delimited data record contains, in addition to 5 integer time fields, 53 floating point fields of measured fluxes. Since particle identification is based simply on energy losses exceeding discriminator thresholds in a single 18 micron thick silicon solid state detector, explicit identification of nuclear charge is not possible. The channels are labeled with the usually dominant particle species, and may contain significant contributions from heavier nuclei. The contents of the 58 fields in each data record are described in the COSPIN/HFT User Notes (http://helio.estec.esa.nl/ulysses/archive/cospin_hft_un.html) referred to above. (See also Anglin et al., J. Geophys. Res., 102, 1, 1997 for a further discussion of the HFT's function,, especially in high flux environments.) The thinness of the detector in combination with the discriminator threshold levels make the HFT very insensitive to electrons. The data cycle is complex (See Simpson et al., 1992, cited above), and, at the most common science telemetry rate of 1024 bps, one complete data cycle is returned every 256 seconds. Thus at low bit rates (256 bps or lower) a full data cycle can not be completed in one 10 minute interval. Fortunately, prior to loss of the Ulysses X-band transmitter in January 2008 periods where such low bit rates were used were quite rare. The accumulation intervals for all fluxes, both spin-averaged and sectored, are synchronized with the spacecraft spin period so that each readout corresponds to an integral number of spins.

Format
Text
Encoding
ZIP
Acknowledgement

J.D. Anglin, HIA/NRC, Ottawa, Canada

Instrument
High Flux Telescope Get XML
Measurement type
Energetic particles
Temporal description
Start date
1990-10-22 00:00:00
Stop date
2007-04-20 23:59:00
Cadence
10 minutes
Observed regions
Heliosphere.Outer

Parameters

Parameter #1

Name
Interval Start Time
Parameter key
Columns 1-5
Description

Nominal Start Time for the average given in year, day of year, hour, min, second.

Cadence
10 minutes
Structure
Size
5
Elements
Index Name Valid min Valid max Fill value
1 Year 1990 2009 Null
2 Day of year 1 366 Null
3 Hour of day 0 23 Null
4 Minute of hour 0 59 Null
5 Seconds of minute 0 59 Null
Parameter type
Temporal

Parameter #2

Name
COSPIN/HFT 0.28-7.0 MeV Proton Spin-Averaged Flux based on counting rate F1J(0)
Parameter key
Column_6
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F1J(0) responding primarily to 0.7-0.9 MeV protons. This flux represents one step in a 16 step sequence of discriminator levels. The step is identified in the rate name, where J(x) implies step x. In the most common operational mode the discriminator level advances one step with each readout of F1 (16 seconds at 1024 bps). Each complete cycle thus takes 256 seconds (at 1024 bps).

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.28 MeV proton will also contribute to this flux. The total accumulation interval for this rate is much less than the 10 minute nominal interval since it represents one step in a 16-step sequence of discriminator levels.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
Proton
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.28
High energy
7.0
Units
MeV

Parameter #3

Name
COSPIN/HFT 0.50-2.27 MeV Proton Spin-Averaged Flux based on counting rate F1J(1)
Parameter key
Column_7
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F1J(1) responding primarily to 0.50-2.27 MeV protons. This flux represents one step in a 16 step sequence of discriminator levels. The step is identified in the rate name, where J(x) implies step x. In the most common operational mode the discriminator level advances one step with each readout of F1 (16 seconds at 1024 bps). Each complete cycle thus takes 256 seconds (at 1024 bps).

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.50 MeV proton will also contribute to this flux. The total accumulation interval for this rate is much less than the 10 minute nominal interval since it represents one step in a 16-step sequence of discriminator levels.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
Proton
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.50
High energy
2.27
Units
MeV

Parameter #4

Name
COSPIN/HFT 0.76-1.37 MeV Proton Spin-Averaged Flux based on counting rate F1J(2)
Parameter key
Column_8
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F1J(2) responding primarily to 0.76-1.37 MeV protons. This flux represents one step in a 16 step sequence of discriminator levels. The step is identified in the rate name, where J(x) implies step x. In the most common operational mode the discriminator level advances one step with each readout of F1 (16 seconds at 1024 bps). Each complete cycle thus takes 256 seconds (at 1024 bps).

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.76 MeV proton will also contribute to this flux. The total accumulation interval for this rate is much less than the 10 minute nominal interval since it represents one step in a 16-step sequence of discriminator levels.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
Proton
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.76
High energy
1.37
Units
MeV

Parameter #5

Name
COSPIN/HFT 0.31-5.4 MeV/n Helium Spin-Averaged Flux based on counting rate F1J(3)
Parameter key
Column_9
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F1J(3) responding primarily to 0.31-5.4 MeV/n Helium nuclei. This flux represents one step in a 16 step sequence of discriminator levels. The step is identified in the rate name, where J(x) implies step x. In the most common operational mode the discriminator level advances one step with each readout of F1 (16 seconds at 1024 bps). Each complete cycle thus takes 256 seconds (at 1024 bps).

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.31 MeV/n Helium nucleus (alpha particle) will also contribute to this flux. The total accumulation interval for this rate is much less than the 10 minute nominal interval since it represents one step in a 16-step sequence of discriminator levels.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV/n))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
AlphaParticle
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.31
High energy
5.4
Units
MeV/n

Parameter #6

Name
COSPIN/HFT 0.38-3.9 MeV/n Helium Spin-Averaged Flux based on counting rate F1J(4)
Parameter key
Column_10
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F1J(4) responding primarily to 0.38-3.9 MeV/n Helium nuclei. This flux represents one step in a 16 step sequence of discriminator levels. The step is identified in the rate name, where J(x) implies step x. In the most common operational mode the discriminator level advances one step with each readout of F1 (16 seconds at 1024 bps). Each complete cycle thus takes 256 seconds (at 1024 bps).

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.38 MeV/n Helium nucleus (alpha particle) will also contribute to this flux. The total accumulation interval for this rate is much less than the 10 minute nominal interval since it represents one step in a 16-step sequence of discriminator levels.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV/n))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
AlphaParticle
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.38
High energy
3.9
Units
MeV/n

Parameter #7

Name
COSPIN/HFT 0.45-2.9 MeV/n Helium Spin-Averaged Flux based on counting rate F1J(5)
Parameter key
Column_11
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F1J(5) responding primarily to 0.45-2.9 MeV/n Helium nuclei. This flux represents one step in a 16 step sequence of discriminator levels. The step is identified in the rate name, where J(x) implies step x. In the most common operational mode the discriminator level advances one step with each readout of F1 (16 seconds at 1024 bps). Each complete cycle thus takes 256 seconds (at 1024 bps).

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.45 MeV/n Helium nucleus (alpha particle) will also contribute to this flux. The total accumulation interval for this rate is much less than the 10 minute nominal interval since it represents one step in a 16-step sequence of discriminator levels.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV/n))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
AlphaParticle
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.45
High energy
2.9
Units
MeV/n

Parameter #8

Name
COSPIN/HFT 0.51-2.26 MeV/n Helium Spin-Averaged Flux based on counting rate F1J(6)
Parameter key
Column_12
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F1J(6) responding primarily to 0.51-2.26 MeV/n Helium nuclei. This flux represents one step in a 16 step sequence of discriminator levels. The step is identified in the rate name, where J(x) implies step x. In the most common operational mode the discriminator level advances one step with each readout of F1 (16 seconds at 1024 bps). Each complete cycle thus takes 256 seconds (at 1024 bps).

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.51 MeV/n Helium nucleus (alpha particle) will also contribute to this flux. The total accumulation interval for this rate is much less than the 10 minute nominal interval since it represents one step in a 16-step sequence of discriminator levels.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV/n))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
AlphaParticle
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.51
High energy
2.26
Units
MeV/n

Parameter #9

Name
COSPIN/HFT 0.58-1.91 MeV/n Helium Spin-Averaged Flux based on counting rate F1J(7)
Parameter key
Column_13
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F1J(7) responding primarily to 0.58-1.91 MeV/n Helium nuclei. This flux represents one step in a 16 step sequence of discriminator levels. The step is identified in the rate name, where J(x) implies step x. In the most common operational mode the discriminator level advances one step with each readout of F1 (16 seconds at 1024 bps). Each complete cycle thus takes 256 seconds (at 1024 bps).

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.58 MeV/n Helium nucleus (alpha particle) will also contribute to this flux. The total accumulation interval for this rate is much less than the 10 minute nominal interval since it represents one step in a 16-step sequence of discriminator levels.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV/n))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
AlphaParticle
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.58
High energy
1.91
Units
MeV/n

Parameter #10

Name
COSPIN/HFT 0.64-1.66 MeV/n Helium Spin-Averaged Flux based on counting rate F1J(8)
Parameter key
Column_14
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F1J(8) responding primarily to 0.64-1.66 MeV/n Helium nuclei. This flux represents one step in a 16 step sequence of discriminator levels. The step is identified in the rate name, where J(x) implies step x. In the most common operational mode the discriminator level advances one step with each readout of F1 (16 seconds at 1024 bps). Each complete cycle thus takes 256 seconds (at 1024 bps).

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.64 MeV/n Helium nucleus (alpha particle) will also contribute to this flux. The total accumulation interval for this rate is much less than the 10 minute nominal interval since it represents one step in a 16-step sequence of discriminator levels.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV/n))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
AlphaParticle
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.64
High energy
1.66
Units
MeV/n

Parameter #11

Name
COSPIN/HFT 0.71-1.50 MeV/n Helium Spin-Averaged Flux based on counting rate F1J(9)
Parameter key
Column_15
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F1J(9) responding primarily to 0.71-1.50 MeV/n Helium nuclei. This flux represents one step in a 16 step sequence of discriminator levels. The step is identified in the rate name, where J(x) implies step x. In the most common operational mode the discriminator level advances one step with each readout of F1 (16 seconds at 1024 bps). Each complete cycle thus takes 256 seconds (at 1024 bps).

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.71 MeV/n Helium nucleus (alpha particle) will also contribute to this flux. The total accumulation interval for this rate is much less than the 10 minute nominal interval since it represents one step in a 16-step sequence of discriminator levels.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV/n))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
AlphaParticle
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.71
High energy
1.50
Units
MeV/n

Parameter #12

Name
COSPIN/HFT 0.78-1.35 MeV/n Helium Spin-Averaged Flux based on counting rate F1J(10)
Parameter key
Column_16
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F1J(10) responding primarily to 0.78-1.35 MeV/n Helium nuclei. This flux represents one step in a 16 step sequence of discriminator levels. The step is identified in the rate name, where J(x) implies step x. In the most common operational mode the discriminator level advances one step with each readout of F1 (16 seconds at 1024 bps). Each complete cycle thus takes 256 seconds (at 1024 bps).

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.78 MeV/n Helium nucleus (alpha particle) will also contribute to this flux. The total accumulation interval for this rate is much less than the 10 minute nominal interval since it represents one step in a 16-step sequence of discriminator levels.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV/n))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
AlphaParticle
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.78
High energy
1.35
Units
MeV/n

Parameter #13

Name
COSPIN/HFT 0.85-1.25 MeV/n Helium Spin-Averaged Flux based on counting rate F1J(11)
Parameter key
Column_17
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F1J(11) responding primarily to 0.85-1.25 MeV/n Helium nuclei. This flux represents one step in a 16 step sequence of discriminator levels. The step is identified in the rate name, where J(x) implies step x. In the most common operational mode the discriminator level advances one step with each readout of F1 (16 seconds at 1024 bps). Each complete cycle thus takes 256 seconds (at 1024 bps).

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.85 MeV/n Helium nucleus (alpha particle) will also contribute to this flux. The total accumulation interval for this rate is much less than the 10 minute nominal interval since it represents one step in a 16-step sequence of discriminator levels.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV/n))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
AlphaParticle
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.85
High energy
1.25
Units
MeV/n

Parameter #14

Name
COSPIN/HFT 0.91-1.17 MeV/n Helium Spin-Averaged Flux based on counting rate F1J(12)
Parameter key
Column_18
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F1J(12) responding primarily to 0.91-1.17 MeV/n Helium nuclei. This flux represents one step in a 16 step sequence of discriminator levels. The step is identified in the rate name, where J(x) implies step x. In the most common operational mode the discriminator level advances one step with each readout of F1 (16 seconds at 1024 bps). Each complete cycle thus takes 256 seconds (at 1024 bps).

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.85 MeV/n Helium nucleus (alpha particle) will also contribute to this flux. The total accumulation interval for this rate is much less than the 10 minute nominal interval since it represents one step in a 16-step sequence of discriminator levels.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV/n))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
AlphaParticle
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.91
High energy
1.17
Units
MeV/n

Parameter #15

Name
COSPIN/HFT 0.98-1.12 MeV/n Helium Spin-Averaged Flux based on counting rate F1J(13)
Parameter key
Column_19
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F1J(13) responding primarily to 0.98-1.12 MeV/n Helium nuclei. This flux represents one step in a 16 step sequence of discriminator levels. The step is identified in the rate name, where J(x) implies step x. In the most common operational mode the discriminator level advances one step with each readout of F1 (16 seconds at 1024 bps). Each complete cycle thus takes 256 seconds (at 1024 bps).

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.98 MeV/n Helium nucleus (alpha particle) will also contribute to this flux. The total accumulation interval for this rate is much less than the 10 minute nominal interval since it represents one step in a 16-step sequence of discriminator levels.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV/n))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
AlphaParticle
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.98
High energy
1.12
Units
MeV/n

Parameter #16

Name
COSPIN/HFT 0.34-29.6 MeV/n (for Oxygen) Spin-Averaged Flux based on counting rate F1J(14)
Parameter key
Column_20
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F1J(14) responding primarily to heavy nuclei (0.34-29.6 MeV/n for Oxygen) . This flux represents one step in a 16 step sequence of discriminator levels. The step is identified in the rate name, where J(x) implies step x. In the most common operational mode the discriminator level advances one step with each readout of F1 (16 seconds at 1024 bps). Each complete cycle thus takes 256 seconds (at 1024 bps).

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.34 MeV/n Oxygen nucleus will also contribute to this flux. The total accumulation interval for this rate is much less than the 10 minute nominal interval since it represents one step in a 16-step sequence of discriminator levels.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV/n))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
Ion
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.34
High energy
29.6
Units
MeV/n

Parameter #17

Name
COSPIN/HFT 0.36-27.4 MeV/n (for Oxygen) Spin-Averaged Flux based on counting rate F1J(15)
Parameter key
Column_21
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F1J(15) responding primarily to heavy nuclei (0.36-27.4 MeV/n for Oxygen) . This flux represents one step in a 16 step sequence of discriminator levels. The step is identified in the rate name, where J(x) implies step x. In the most common operational mode the discriminator level advances one step with each readout of F1 (16 seconds at 1024 bps). Each complete cycle thus takes 256 seconds (at 1024 bps).

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.36 MeV/n Oxygen nucleus will also contribute to this flux. The total accumulation interval for this rate is much less than the 10 minute nominal interval since it represents one step in a 16-step sequence of discriminator levels.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV/n))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
Ion
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.36
High energy
27.4
Units
MeV/n

Parameter #18

Name
COSPIN/HFT 0.20-6.7 MeV Proton Spin-Averaged Flux based on counting rate F2L
Parameter key
Column_22
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F2L responding primarily to 0.20-6.7 MeV protons. This discriminator level corresponding to this flux is set to L or H by command. If the level is set to H, this field will be fill.

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.20 MeV proton will also contribute to this flux.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
Proton
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.20
High energy
6.7
Units
MeV

Parameter #19

Name
COSPIN/HFT 0.55-1.95 MeV Proton Spin-Averaged Flux based on counting rate F2H
Parameter key
Column_23
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F2H responding primarily to 0.55-1.95 MeV protons. This discriminator level corresponding to this flux is set to L or H by command. If the level is set to L, this field will be fill.

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.55 MeV proton will also contribute to this flux.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
Proton
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.55
High energy
1.95
Units
MeV

Parameter #20

Name
COSPIN/HFT 0.68-1.56 MeV/n (for He) Z>=2 Spin-Averaged Flux based on counting rate F3
Parameter key
Column_24
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F3 responding primarily to 0.68-1.56 MeV/n (for He) Z>=2 nuclei.

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.68 MeV/n helium nucleus will also contribute to this flux.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV/n))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
Proton
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.68
High energy
1.56
Units
MeV/n

Parameter #21

Name
COSPIN/HFT 0.8-4.9 MeV/n (for Carbon) Z>=3 Spin-Averaged Flux based on counting rate F4
Parameter key
Column_25
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F4 responding primarily to 0.8-4.9 MeV/n (for He) Z>=2 nuclei.

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.8 MeV/n Carbon nucleus will also contribute to this flux.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV/n))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
Proton
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.8
High energy
4.9
Units
MeV/n

Parameter #22

Name
COSPIN/HFT 1.28-8.5 MeV/n (for Sulphur) Z>=12 Spin-Averaged Flux based on counting rate F5
Parameter key
Column_26
Description

Nominal 10-minute average HFT spin-averaged flux based on counting rate F3 responding primarily to 1.28-8.5MeV/n (for Sulphur) Z>=12 nuclei.

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 1.28 MeV/n Sulphur nucleus will also contribute to this flux.

Cadence
10 minutes
Units
(counts/(s*cm^2*sr*MeV/n))
Valid minimum
0.0
Valid maximum
1.00E+06
Fill value
-999
Particle type
Proton
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
1.28
High energy
8.5
Units
MeV/n

Parameter #23

Name
COSPIN/HFT Proton 32-Sectored Flux based on counting rate F2S
Parameter key
Columns 27 through 58
Description

Nominal 10-minute average HFT spin-averaged fluxes based on counting rate F2s, which split directionality of the F2 fluxes using 32 spin sectors. The counting rate responds primarily to protons in the energy ranges 0.29-6.7 MeV or 0.55-1.95 MeV, depending on whether the F2 threshold is set low or high respectively. The state of the F2 threshold is low if column 23 contains fill, and high if column 22 contains fill. See Anglin et al. , J. Geophys. Res., 102, 1, 1997 for more detailed discussion of using the HFT F2S sectored rate.

Caveats

Since the energy range is defined entirely by a discriminator level on the single 18 micron thick silicon detector, other high energy nuclei with energy losses in the detector greater than that of a normally incident 0.29 or 0.55 MeV proton (depending on the state of the F2 discriminator) will also contribute to these fluxes. Since the total accumulation time in each sector is less than 20 seconds in the nominal 10 minute averaging period, statistical accuracy of these sectored fluxes in a single averaging interval is usually poor except in large flux enhancements, most commonly produced by large solar energetic particle events, but also by the high radiation levels in Jupiter's magnetosphere.

Cadence
10 minutes
Structure
Size
32
Elements
Index Name Units Valid min Valid max Fill value
1 F2S1 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
2 F2S2 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
3 F2S3 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
4 F2S4 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
5 F2S5 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
6 F2S6 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
7 F2S7 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
8 F2S8 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
9 F2S9 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
10 F2S10 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
11 F2S11 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
12 F2S12 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
13 F2S13 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
14 F2S14 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
15 F2S15 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
16 F2S16 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
17 F2S17 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
18 F2S18 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
19 F2S19 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
20 F2S20 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
21 F2S21 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
22 F2S22 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
23 F2S23 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
24 F2S24 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
25 F2S25 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
26 F2S26 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
27 F2S27 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
28 F2S28 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
29 F2S29 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
30 F2S30 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
31 F2S31 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
32 F2S32 (counts/(s*cm^2*sr*MeV)) 0.0 1.00E+06 -999
Particle type
Proton
Quantity
Number flux
Qualifier
Average
Energy range
Low energy
0.29
High energy
6.7
Units
MeV

SPASE version 2.0.0

Instrument: High Flux Telescope

Instrument ID
spase://SMWG/Instrument/Ulysses/COSPIN/HFT Get XML
Name
High Flux Telescope
Alternate name
COSPIN/HFT
Description

High Flux Telescope (HFT): ~0.3-7 MeV protons, 0.4-4 MeV/n He with a small aperture single detector telescope for use in very high flux situations

HFT is one of five instruments that make up the COSPIN suite on the Ulysses spacecraft. HFT was built, and primary data analysis is maintained, by National Research Council, Ottawa, Canada

Additional information
HFT Instrument Description

Information about the HFT experiment on the Ulysses mission.

Contact
Role Person
1. Principal investigator Dr. R. Bruce McKibben Get XML
2. CoInvestigator Dr. John David Anglin Get XML
Release date
2009-09-18 21:10:12
Instrument type
Energetic Particle Instrument
Investigation name
High Flux Telescope
Observatory
Ulysses Get XML

SPASE version 2.0.0

Observatory: Ulysses

Observatory ID
spase://SMWG/Observatory/Ulysses Get XML
Name
Ulysses
Alternate name
1990-090B
Solar Polar
International Solar Polar Mission
ULY
Description

The primary objectives of Ulysses, formerly the International Solar Polar Mission (ISPM), are to investigate, as a function of solar latitude, the properties of the solar wind and the interplanetary magnetic field, of galactic cosmic rays and neutral interstellar gas, and to study energetic particle composition and acceleration. The 55 kg payload includes two magnetometers, two solar wind plasma instruments, a unified radio/plasma wave instrument, three energetic charged particle instruments, an interstellar neutral gas sensor, a solar X-ray/cosmic gamma-ray burst detector, and a cosmic dust sensor. The communications systems is also used to study the solar corona and to search for gravitational waves. Secondary objectives included interplanetary and planetary physics investigations during the initial Earth-Jupiter phase and investigations in the Jovian magnetosphere. The spacecraft used a Jupiter swingby in Feb. 1992 to transfer to a heliospheric orbit with high heliocentric inclination, and will pass over the rotational south pole of the sun in mid-1994 at 2 AU, and over the north pole in mid-1995. A second solar orbit will take Ulysses again over the south and north poles in years 2000 and 2001, respectively. The spacecraft is powered by a single radio-isotope generator. It is spin stabilized at a rate of 5 rpm and its high-gain antenna points continuously to the earth. A nutation anomaly after launch was controlled by CONSCAN. The original mission planned for two spacecraft, one built by ESA and the other by NASA. NASA cancelled its spacecraft in 1981.

Additional information
Ulysses website at JPL

JPL's primary website for the Ulysses mission. Links to all of the experiment subpages exist here.

Contact
Role Person
1. Project scientist Dr. Edward J. Smith Get XML
2. Project scientist Dr. Richard G. Marsden Get XML
Release date
2009-05-20 20:00:12
Location
Region
Heliosphere.Inner
Heliosphere.NearEarth
Heliosphere.Outer

SPASE version 2.0.0

Person: UNKNOWN

Name
UNKNOWN
Organization
UNKNOWN
Person ID
spase://SMWG/Person/UNKNOWN Get XML
Release date
1999-01-01 00:00:00

SPASE version 2.0.0

Person: Dr. R. Bruce McKibben

Name
Dr. R. Bruce McKibben
Organization
University of New Hampshire
Person ID
spase://SMWG/Person/R.Bruce.McKibben Get XML

SPASE version 2.0.0

Person: Dr. John David Anglin

Name
Dr. John David Anglin
Organization
Herzberg Institute for Astrophysics, National Research Council of Canada
Email
dave@hiauly1.hia.nrc.ca
Person ID
spase://SMWG/Person/J.David.Anglin Get XML

SPASE version 2.0.0

Person: Dr. Edward J. Smith

Name
Dr. Edward J. Smith
Organization
Jet Propulsion Laboratory
Email
edward.j.smith@jpl.nasa.gov
Phone
+1-818-354-2248
Person ID
spase://SMWG/Person/Edward.J.Smith Get XML
Release date
1999-08-18 00:00:00

SPASE version 2.0.0

Person: Dr. Richard G. Marsden

Name
Dr. Richard G. Marsden
Organization
ESA-European Space Research Technology
Email
richard.marsden@esa.int
Phone
+1-31-1715653583
Person ID
spase://SMWG/Person/Richard.G.Marsden Get XML
Release date
1999-08-18 00:00:00

SPASE version 1.2.0

Repository: UDS

Repository ID
spase://SMWG/Repository/UDS Get XML
Name
UDS
Description
Contact
Role Person
1. General contact UNKNOWN Get XML
Release date
2008-06-18 18:05:57