This page summarizes information about the selected resource and its origin based on SPASE metadata.

SPASE version 2.0.0

Numerical Data Product: Ulysses:HISCALE PHA Event Data

Resource ID

spase://VEPO/NumericalData/Ulysses/HISCALE/MFSA/G93

Name

Ulysses:HISCALE PHA Event Data

Alternate name

HISCALE-PHA-EVENT

Description

Pulse Height Analyzer matrix data for a single Solar Energetic Particle event from the Ulysses:HISCALE instrument. Using the PHA data, one can quickly and very accurately determine composition.

Additional information

Explaination of HISCALE print-groups and CSV file nomenclature.: The Explanation.html page at Fundamental Technologies describes how the numeric data from the Ulysses HISCALE instrument are divided into different print-groups, the nomenclature of the ASCII-based comma-separated variable (CSV) files, and how those files can be accessed.

Acknowledgement

Thomas P. Armstrong, Fundamental Technologies LLC

Contact

	Role	Person
1.	Data producer	Dr. Thomas P. Armstrong

Release date

2007-11-06 00:00:00

Expiration date

2008-10-01 00:00:00

Association

spase://VEPO/NumericalData/Ulysses/HISCALE/MFSA/G94

Repository

Name

FTECS

Availability

Online

Access rights

Open

URL

Ulysses HISCALE PHA Event Data: Parent directory containing the PHA event data for the Ulysses/HISCALE instrument for the entire mission.

Format

Text

Encoding

ASCII

Acknowledgement

Thomas P. Armstrong, Fundamental Technologies LLC

Instrument

Heliosphere Instrument for Spectra, Composition and Anisotropy at Low Energies

Measurement type

Energetic particles

Temporal description

Start date: 1990-01-01 00:00:00
Stop date: 2007-12-31 23:59:59
Cadence: 17 minutes

Observed regions

Heliosphere.Outer

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Parameters

Parameter #1

Name

Time for the record

Parameter key

TimeStamp

Description

Time for the record given in year, day of year, hour, min, and decimal seconds. The given time represents the beginning of the event interval.

Structure

Size

Elements

Index	Name	Valid min	Valid max	Fill value
1	Year	"+cyear+"	"+cyear+"	-9999
2	Day of year	1	366	-999
3	Hour of day	0	23	-99
4	Minute of hour	0	59	-99
5	Seconds of minute	0.00	59.99	-99.99

Parameter type

Temporal

Parameter #2

Name: Number of Events
Parameter key: NEVENTS
Description: Number of C/D pairs contained in this event file.
Valid minimum: 0
Valid maximum: 1024
Fill value: null
Parameter type: Other

Parameter #3

Name: Event time offset
Parameter key: ETIME
Description: Time offset for a given C/D pair in hundredths of a second
Valid minimum: 0
Valid maximum: 204800
Fill value: null
Parameter type: Temporal

Parameter #4

Name: Sector
Parameter key: SECT
Description: Sector, 1-8, in which the C/D event pair occurs.
Valid minimum: 1
Valid maximum: 8
Fill value: null
Parameter type: Other

Parameter #5

Name: C1 Digitized Height
Parameter key: C1
Description: Digitized pulse height from the first sampling of the C detector.
Valid minimum: 0
Valid maximum: 255
Fill value: null
Particle type: Ion
Quantity: Energy

Parameter #6

Name: D1 Digitized Height
Parameter key: D1
Description: Digitized pulse height from the first sampling of the D detector.
Valid minimum: 0
Valid maximum: 255
Fill value: null
Particle type: Ion
Quantity: Energy

Parameter #7

Name: C2 Digitized Height
Parameter key: C2
Description: Digitized pulse height from the second sampling of the C detector.
Valid minimum: 0
Valid maximum: 255
Fill value: null
Particle type: Ion
Quantity: Energy

Parameter #8

Name: D2 Digitized Height
Parameter key: D2
Description: Digitized pulse height from the second sampling of the D detector.
Valid minimum: 0
Valid maximum: 255
Fill value: null
Particle type: Ion
Quantity: Energy

Parameter #9

Name: C1 Energy
Parameter key: C1-Eng
Description: Deposited energy from the first sampling of the C detector.
Units: keV
Valid minimum: 0.0
Valid maximum: 1.00E+06
Fill value: null
Particle type: Ion
Quantity: Energy

Parameter #10

Name: D1 Energy
Parameter key: D1-Eng
Description: Deposited energy from the first sampling of the D detector.
Units: keV
Valid minimum: 0.0
Valid maximum: 1.00E+06
Fill value: null
Particle type: Ion
Quantity: Energy

Parameter #11

Name: C2 Energy
Parameter key: C2-Eng
Description: Deposited energy from the second sampling of the C detector.
Units: keV
Valid minimum: 0.0
Valid maximum: 1.00E+06
Fill value: null
Particle type: Ion
Quantity: Energy

Parameter #12

Name: D2 Energy
Parameter key: D2-Eng
Description: Deposited energy from the second sampling of the D detector.
Units: keV
Valid minimum: 0.0
Valid maximum: 1.00E+06
Fill value: null
Particle type: Ion
Quantity: Energy

Parameter #13

Name: Priority Schedule
Parameter key: PSCHED
Description: Schedule for species priority: 0 - Fe, O, He, H 1 - O, Fe, H, He 2 - H, Fe, O, He 3 - He, Fe, O, H
Valid minimum: 0
Valid maximum: 3
Fill value: null
Parameter type: Other

Parameter #14

Name: Event 1 Channel
Parameter key: E1-Ch
Description: Channel which triggered the first event pair, W1-W8.
Parameter type: Other

Parameter #15

Name: Event 2 Channel
Parameter key: E2-Ch
Description: Channel which triggered the second event pair, W1-W8.
Parameter type: Other

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SPASE version 2.0.0

Instrument: Heliosphere Instrument for Spectra, Composition and Anisotropy at Low Energies

Instrument ID

spase://SMWG/Instrument/Ulysses/HISCALE

Name

Heliosphere Instrument for Spectra, Composition and Anisotropy at Low Energies

Alternate name

HISCALE

Description

The objectives of this investigation are (1) to investigate the solar-flare process with measurements of non-relativistic and relativistic electrons, and non-relativistic ions, and their dependence on heliolatitude; (2) to investigate solar elemental abundances with measurements of chemical composition of nuclei of solar origin at all heliolatitudes; (3) to investigate the interplanetary propagation of solar energetic particles by measurement of anisotropy and composition parameters; (4) to investigate acceleration processes; and (5) to investigate temporal and spatial variations of particle intensity in and near the Jovian magnetosphere. The instrumentation consists of two double-ended solid state detector systems which measure ions in the range 50 keV to 5 MeV and electrons in the range 30 to 300 keV, and a (dE/dX, E) telescope using a 5-micrometer-thick front detector for ion elemental abundances in the range 1 to 15 MeV/nucleon (Fe). Each double-ended system is composed on one end of a foil spectrometer in which a 0.35 mg/sq cm thin foil excludes ions below 0.350 keV, allowing electrons above 30 keV to be detected. Further, one of the other ends of one of the systems is a magnetic spectrometer, using a rare-earth magnet to separate electrons from ions (geometric factor for ions is approximately 0.5 sq cm-sr, and for electrons 0.05 sq cm-sr). Orientation of the sensor systems is such that complete pitch-angle coverage is obtained. The instrument has a mass of 5.8 kg including shielding, and uses 4.0 W of power. The data rate is 80 bps in cruise mode and 160 bps in tracking mode. "The Heliosphere Instrument for Spectra, Composition, and Anisotropy at Low Energies (HI-SCALE) is designed to make measurements of interplanetary ions and electrons throughout the entire Ulysses mission. This ions (Ei > 50 keV) and electrons ( Ee > 30 keV ) are identified uniquely and detected by five separate solid-state detector telescopes that are oriented to give nearly complete pitch-angle coverage (i.e., coverage of essentially 4 pi ster) from the spinning spacecraft. Ion elemental abundances are determined by a delta E vs E telescope using a thin (5 micron) front solid state detector element in a three-element telescope. Expirement operation is controlled by a microprocessor-based data system. Inflight calibration is provided by radioactive sources mounted on telescope covers which can be closed for calibration purposes and for radiation protection during the course of the mission. Ion nd electron spectral information is determined using both broad-energy-range rate channels and a 32 channel pulse-height analyser (channels spaced logarithmically) for more detailed spectra. The instrument weighs 5.775 kg and uses 4.0 W of power. Some initial in-ecliptic measurements are presented which demonstrate the features of the instrument". (quote of Abstract: L. Lanzerotti et al., Astron. Astrophys. Suppl. Ser. 92, 349-363, 1992). The HISCALE instrument utilizes five separate detector systems within two mechanical structures. These systems are referenced by their name and angle with respect to the Ulysses spin axis. The systems are the Low-Energy Magnetic Spectrometer (LEMS), the Low-Energy Foil Spectrometer (LEFS) and the Composition Aperature (CA). The LEMS/LEFS systems provide pulse-height-analyzed single-detector measurements with active anticoincidence. The CA system uses a multiparameter detection technique to provide measurement of ion composition in an energy range similar to those of LEMS/LEFS.

Additional information

HISCALE Website at JHU/APL: Primary website for the Ulysses-HISCALE experiment.
HISCALE detector systems: Detailed description and illustrations of the HISCALE detector systems.

Contact

	Role	Person
1.	Principal investigator	Dr. Louis J. Lanzerotti

Release date

2009-05-20 21:10:12

Instrument type

Energetic Particle Instrument

Investigation name

Heliosphere Instrument for Spectra, Composition and Anisotropy at Low Energies

Observatory

Ulysses

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SPASE version 2.0.0

Observatory: Ulysses

Observatory ID

spase://SMWG/Observatory/Ulysses

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
2.	Project scientist	Dr. Richard G. Marsden

Release date

2009-05-20 20:00:12

Location

Region: Heliosphere.Inner; Heliosphere.NearEarth; Heliosphere.Outer

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Data Description

Table of Contents

Numerical Data Product: Ulysses:HISCALE PHA Event Data

Parameters

Parameter #1

Parameter #2

Parameter #3

Parameter #4

Parameter #5

Parameter #6

Parameter #7

Parameter #8

Parameter #9

Parameter #10

Parameter #11

Parameter #12

Parameter #13

Parameter #14

Parameter #15

Instrument: Heliosphere Instrument for Spectra, Composition and Anisotropy at Low Energies

Observatory: Ulysses

Person: Dr. Thomas P. Armstrong

Person: UNKNOWN

Person: Dr. Louis J. Lanzerotti

Person: Dr. Edward J. Smith

Person: Dr. Richard G. Marsden

Repository: FTECS