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Space Environment Monitor (SEM)

ResourceID
spase://SMWG/Instrument/GOES/6/SEM

Description

The Space Environment Monitor Subsystem (SEM) measures in situ the effect of the sun on the near-earth solar-terrestrial electromagnetic environment on a real-time basis. This information is provided to the Space Environment Services Center where it is used for "near-space weather" reports. These reports, which include solar activity, are important to the operators of communication, navigation, electric power transmission systems, and satellites.
The SEM consists of four instruments. The Energetic Particle Sensor (EP8,formerly called EPS) makes flux measurements of protons in the 0.8 to 500 MeV range. The High Energy Proton and Alpha Detector (HEPAD) monitors protons in four energy ranges above 350 MeV and alpha particles in two energy ranges above 640 MeV/nucleon. The solar X-Ray Sensor permits real-time determination of the solar x-ray emission in two spectral bands: 0.5-5 angstroms and 1-8 angstroms. The Magnetic Field Sensor (MFS) allows for the real-time determination of the magnitude and orientation of the magnetic field. Data will be telemetered twice a second for magnetic fields having a magnitude of +/- 1000 nanotesla (nT).

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Details

Version:2.2.0

Instrument

ResourceID
spase://SMWG/Instrument/GOES/6/SEM
ResourceHeader
ResourceName
Space Environment Monitor (SEM)
ReleaseDate
2019-05-05 12:34:56Z
Description

The Space Environment Monitor Subsystem (SEM) measures in situ the effect of the sun on the near-earth solar-terrestrial electromagnetic environment on a real-time basis. This information is provided to the Space Environment Services Center where it is used for "near-space weather" reports. These reports, which include solar activity, are important to the operators of communication, navigation, electric power transmission systems, and satellites.
The SEM consists of four instruments. The Energetic Particle Sensor (EP8,formerly called EPS) makes flux measurements of protons in the 0.8 to 500 MeV range. The High Energy Proton and Alpha Detector (HEPAD) monitors protons in four energy ranges above 350 MeV and alpha particles in two energy ranges above 640 MeV/nucleon. The solar X-Ray Sensor permits real-time determination of the solar x-ray emission in two spectral bands: 0.5-5 angstroms and 1-8 angstroms. The Magnetic Field Sensor (MFS) allows for the real-time determination of the magnitude and orientation of the magnetic field. Data will be telemetered twice a second for magnetic fields having a magnitude of +/- 1000 nanotesla (nT).

Acknowledgement
NOAA Environmental Research Laboratories; Dr. Harold Leinbach; Dr. Ronald Zwickl; Dr. Herbert H. Sauer; Dr. Terry Onsager; Dr. Howard Singer; Mr. Howard Garcia
Contacts
RolePersonStartDateStopDateNote
1.GeneralContactspase://SMWG/Person/Ronald.D.Zwickl
2.PrincipalInvestigatorspase://SMWG/Person/Herbert.H.Sauer
3.PrincipalInvestigatorspase://SMWG/Person/Howard.J.Singer
4.PrincipalInvestigatorspase://SMWG/Person/Harold.Leinbach
5.PrincipalInvestigatorspase://SMWG/Person/Terry.Onsager
6.PrincipalInvestigatorspase://SMWG/Person/Howard.A.Garcia
InformationURL
Name
GOES 6 Energetic Particle Monitor
URL
Description

Introduction to the GOES 6 Energetic Particle Sensor.

InformationURL
Name
GOES 6 Energetic Particle Monitor Data File Information
URL
Description

Additional GOES EPM information.

InformationURL
Name
GOES 6 Energetic Particle Monitor Additional Data File Information
URL
Description

Additional GOES EPM data file information.

InformationURL
Name
GOES 6 Biaxial Fluxgate Magnetometer
URL
Description

Introduction to the GOES 6 Biaxial Fluxgate Magnetometer.

InformationURL
Name
GOES 6 Space Environment Monitor
URL
Description

Additional GOES Biaxial Fluxgate Magnetometer information.

InformationURL
Name
GOES 6 Biaxial Fluxgate Magnetometer Example ASCII file
URL
Description

Additional GOES Biaxial Fluxgate Magnetometer header information.

InformationURL
Name
GOES 6 Solar X-Ray Monitor
URL
Description

Additional GOES Solar X-Ray Monitor information.

InstrumentType
Magnetometer
InstrumentType
EnergeticParticleInstrument
InstrumentType
IonChamber
InvestigationName
Space Environment Monitor (SEM) on GOES 6
ObservatoryID
Caveats
From http://goes.ngdc.noaa.gov/data/avg/readme.txt: Electron Data Quality The Electron detector responds significantly to protons above 32 MeV; therefore, electron data are contaminated when a proton event is in progress. Beginning with GOES-8 the electron data have had a preliminary correction applied, however, even these data are not to be considered research quality at this time. One component of the GOES-6 particle detector system has had radiation damage since 1986 that reduced its counting efficiency progressively. At present the E1 and P4 channels derived from this component record at only a few percent of their proper rates.