HPDE.io

Space Environment Monitor (SEM)

ResourceID
spase://SMWG/Instrument/NOAA/8/SEM

Description

The Space Environmental Monitor (SEM) experiment was an extension of the solar-proton monitoring experiment flown on the ITOS spacecraft series. The objective was to measure proton flux, electron flux density, and energy spectrum in the upper atmosphere. The experiment package consisted of three detector systems and a data processing unit. The medium energy proton and electron detector (MEPED) measured protons in five energy ranges from 30 keV to >2.5 MeV; electrons above 30, 100, and 300 keV; protons and electrons (inseparable) above 6 MeV; and omni-directional protons above 16, 36, and 80 MeV. The high-energy proton and alpha telescope (HEPAT), which had a 48-deg viewing cone, viewed in the anti-earth direction, and measured protons in four energy ranges above 370 MeV and alpha particles in two energy ranges above 850 MeV/nucleon. The total energy detector (TED) measured electrons and protons between 300 eV and 20 keV.

View XML | View JSON | Edit

Details

Version:2.0.0

Instrument

ResourceID
spase://SMWG/Instrument/NOAA/8/SEM
ResourceHeader
ResourceName
Space Environment Monitor (SEM)
AlternateName
SEM
ReleaseDate
2019-05-05 12:34:56Z
Description

The Space Environmental Monitor (SEM) experiment was an extension of the solar-proton monitoring experiment flown on the ITOS spacecraft series. The objective was to measure proton flux, electron flux density, and energy spectrum in the upper atmosphere. The experiment package consisted of three detector systems and a data processing unit. The medium energy proton and electron detector (MEPED) measured protons in five energy ranges from 30 keV to >2.5 MeV; electrons above 30, 100, and 300 keV; protons and electrons (inseparable) above 6 MeV; and omni-directional protons above 16, 36, and 80 MeV. The high-energy proton and alpha telescope (HEPAT), which had a 48-deg viewing cone, viewed in the anti-earth direction, and measured protons in four energy ranges above 370 MeV and alpha particles in two energy ranges above 850 MeV/nucleon. The total energy detector (TED) measured electrons and protons between 300 eV and 20 keV.

Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://SMWG/Person/Harold.Leinbach
2.PrincipalInvestigatorspase://SMWG/Person/David.S.Evans
3.PrincipalInvestigatorspase://SMWG/Person/Herbert.H.Sauer
InformationURL
Name
NSSDC's Master Catalog
URL
Description

Information about the Space Environment Monitor (SEM) experiment on the NOAA 8 mission.

PriorIDs
spase://SMWG/Instrument/NOAA8/SEM
InstrumentType
EnergeticParticleInstrument
InvestigationName
Space Environment Monitor (SEM) on NOAA 8
ObservatoryID