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Meteorological Operational B (MetOp B) Space Environment Monitor 2 (SEM-2) Averaged ASCII Data at 16 s Resolution

ResourceID
spase://NOAA/NumericalData/MetOp/B/SEM-2/Processed/Avg/PT16S

Description

The MetOp B SEM data consists of geographic location information, counts/s from the Medium Energy Proton/Electron Detector (MEPED), and total energies from the Total Energy Detector (TED).

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Details

Version:2.2.9

NumericalData

ResourceID
spase://NOAA/NumericalData/MetOp/B/SEM-2/Processed/Avg/PT16S
ResourceHeader
ResourceName
Meteorological Operational B (MetOp B) Space Environment Monitor 2 (SEM-2) Averaged ASCII Data at 16 s Resolution
AlternateName
MetOp B SEM data
ReleaseDate
2021-01-05 21:27:56Z
Description

The MetOp B SEM data consists of geographic location information, counts/s from the Medium Energy Proton/Electron Detector (MEPED), and total energies from the Total Energy Detector (TED).

Acknowledgement
EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites)
Contacts
RolePersonStartDateStopDateNote
1.ProjectScientistspase://SMWG/Person/UNKNOWN
2.MetadataContactspase://SMWG/Person/James.M.Weygand
InformationURL
Name
European Organisation for the Exploitation of Meteorological Satellites SEM page
URL
https://www.eumetsat.int/sem-2
Description

Information about the Space Environment Monitor-2 (SEM-2) experiment on the MetOp-B mission.

InformationURL
Name
European Space Agency SEM information.
URL
http://www.esa.int/Our_Activities/Observing_the_Earth/Meteorological_missions/MetOp/About_SEM-2
Description

Information about the Space Environment Monitor-2 (SEM-2) experiment on the MetOp-B mission.

PriorIDs
spase://VMO/NumericalData/MetOp/B/SEM/PT16S
AccessInformation
RepositoryID
spase://SMWG/Repository/NOAA/NGDC
Availability
Online
AccessRights
Open
AccessURL
Name
Direct access to the NOAA MetOp SEM data
URL
https://satdat.ngdc.noaa.gov/sem/poes/data/processed/swpc/uncorrected/avg/
Description

Direct link to the MetOp B SEM averaged ascii data. The data are sorted by year and spacecraft. The data files are daily files.

Format
Text.ASCII
Encoding
None
Acknowledgement
NOAA; EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites)
ProcessingLevel
Calibrated
ProviderResourceName
MetOp B SEM-2
ProviderProcessingLevel
Level-2
InstrumentIDs
spase://SMWG/Instrument/MetOp/B/SEM-2
MeasurementType
EnergeticParticles
TemporalDescription
TimeSpan
StartDate
2006-12-03 00:59:46
StopDate
2014-12-31 23:59:46
Note
Time format in data files is year month day hour minute seconds.
Cadence
PT16S
Caveats
Flags=-999.0
Keywords
16 s
polar orbiting
MetOp-B
POES
SEM-2
Magnetospheric Electron Detector
Magnetospheric Proton Detector
Parameter #1
Name
Universal Time
ParameterKey
Time
Description

Universal time columns from left to right are: year month day hour minute sec and doy in the format of yyyy mm dd hh mm ss.sss dyd.ydydydy.

Cadence
PT16S
Structure
Size
7
Description

Universal Time expressed using a 6-column day, month, year, hour, minute, second representation

Element
Name
Year
Index
1
ParameterKey
Year
Element
Name
Month
Index
2
ParameterKey
Month
Element
Name
Day
Index
3
ParameterKey
Day
Element
Name
Hour
Index
4
ParameterKey
Hour
Element
Name
Minute
Index
5
ParameterKey
Minute
Element
Name
Second
Index
6
ParameterKey
Second
Element
Name
Day Of Year
Index
7
ParameterKey
dayofyear
Support
SupportQuantity
Temporal
Parameter #2
Name
Geographic Latitude of sub-satellite point.
ParameterKey
sslat
Description

Geographic Position of sub-satellite point in degrees.

Units
degrees
ValidMin
-90
ValidMax
90
Support
SupportQuantity
Positional
Parameter #3
Name
Geographic Longitude of sub-satellite point.
ParameterKey
sslon
Description

Geographic Longitude of sub-satellite point in degrees.

Units
degrees
ValidMin
0
ValidMax
360
Support
SupportQuantity
Positional
Parameter #4
Name
Geographic Latitude of foot-of-field-line.
ParameterKey
folat
Description

Geographic Position of foot-of-field-line point in degrees.

Units
degrees
ValidMin
-90
ValidMax
90
Support
SupportQuantity
Positional
Parameter #5
Name
Geographic Longitude of foot-of-field-line.
ParameterKey
folon
Description

Geographic position of foot-of-field-line point in degrees.

Units
degrees
ValidMin
0
ValidMax
360
Support
SupportQuantity
Positional
Parameter #6
Name
L-Value Position of the Spacecraft.
ParameterKey
lval
Description

L-value position of the spacecraft.

Support
SupportQuantity
Positional
Parameter #7
Name
Magnetic Local Time of the Spacecraft.
ParameterKey
mlt
Description

The eccentric magnetic local time at the fofl location is calculated following the
procedures set down by Cole, (1963) and Fraser-Smith, (1987). The calculation
is updated once a year using the current IGRF model field. The eccentric
magnetic local time is returned as an angle from 0 deg to 360 deg, with 0 deg being
magnetic midnight, and the angle incremented by 15 deg per hour magnetic local
time.

The local time is calculated at the sub-satellite location by assuming the local
time is the Universal Time incremented by one hour for every 15 deg east of the
Greenwich meridian. The equation of time is not used in the calculation, so this
variable is only approximately the true local solar time at the sub-satellite point.
The local time is also returned as an angle from 0 deg to 360 deg with 0 deg being midnight.

Units
degrees
ValidMin
0
ValidMax
360
Support
SupportQuantity
Positional
Parameter #8
Name
MEPED-0 pitch angle at the satellite.
ParameterKey
pas0
Description

Medium Energy Proton/Electron Detector-0 degree electron detector on the MetOp B 3 axis stabilized spacecraft is set to view outward along the Earth-center to satellite line.
The angle given in this parameter is the angle between the 0 degree electron detector and the Earth-center to spacecraft line. At the north polar region the angle will be about zero and
at the south pole the angle will be around 180 degrees.

Units
degrees
ValidMin
0
ValidMax
180
Particle
ParticleType
Electron
ParticleQuantity
ArrivalDirection
Parameter #9
Name
MEPED-90 pitch angle at the satellite.
ParameterKey
pas90
Description

Medium Energy Proton/Electron Detector-90 electron detector on the MetOp B 3 axis stabilized spacecraft is set to view perpendicular along the Earth-center to satellite line.
The angle given in this parameter is the angle between the 0 degree electron detector and the Earth-center to spacecraft line. At the polar regiond the angle will be about 90 degrees.

Units
degrees
ValidMin
0
ValidMax
180
Particle
ParticleType
Electron
ParticleQuantity
ArrivalDirection
Parameter #10
Name
MEPED-0 > 30 keV electrons.
ParameterKey
mep0e1
Description

MEPED-0 >30 keV electrons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Electron
ParticleQuantity
CountRate
Parameter #11
Name
MEPED-0 > 100 keV electrons.
ParameterKey
mep0e2
Description

MEPED-0 >100 keV electrons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Electron
ParticleQuantity
CountRate
Parameter #12
Name
MEPED-0 > 300 keV electrons.
ParameterKey
mep0e3
Description

MEPED-0 >300 keV electrons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Electron
ParticleQuantity
CountRate
Parameter #13
Name
MEPED-0 30 keV to 80 keV protons.
ParameterKey
mep0p1
Description

MEPED-0 30 keV to 80 keV protons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Proton
ParticleQuantity
CountRate
EnergyRange
Low
30
High
80
Units
keV
Parameter #14
Name
MEPED-0 80 keV to 240 keV protons.
ParameterKey
mep0p2
Description

MEPED-0 80 keV to 240 keV protons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Proton
ParticleQuantity
CountRate
EnergyRange
Low
80
High
240
Units
keV
Parameter #15
Name
MEPED-0 240 keV to 800 keV protons.
ParameterKey
mep0p3
Description

MEPED-0 240 keV to 800 keV protons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Proton
ParticleQuantity
CountRate
EnergyRange
Low
240
High
800
Units
keV
Parameter #16
Name
MEPED-0 800 keV to 2500 keV protons.
ParameterKey
mep0p4
Description

MEPED-0 800 keV to 2500 keV protons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Proton
ParticleQuantity
CountRate
EnergyRange
Low
800
High
2500
Units
keV
Parameter #17
Name
MEPED-0 2500 keV to 6900 keV protons.
ParameterKey
mep0p5
Description

MEPED-0 2500 keV to 6900 keV protons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Proton
ParticleQuantity
CountRate
EnergyRange
Low
2500
High
6900
Units
keV
Parameter #18
Name
MEPED-0 > 6900 keV protons.
ParameterKey
mep0p6
Description

MEPED-0 >6900 keV protons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Proton
ParticleQuantity
CountRate
Parameter #19
Name
MEPED-90 > 30 keV electrons.
ParameterKey
mep90e1
Description

MEPED-90 >30 keV electrons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Electron
ParticleQuantity
CountRate
Parameter #20
Name
MEPED-90 > 100 keV electrons.
ParameterKey
mep90e2
Description

MEPED-90 >100 keV electrons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Electron
ParticleQuantity
CountRate
Parameter #21
Name
MEPED-90 > 300 keV electrons.
ParameterKey
mep90e3
Description

MEPED-90 >300 keV electrons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Electron
ParticleQuantity
CountRate
Parameter #22
Name
MEPED-90 30 keV to 80 keV protons.
ParameterKey
mep90p1
Description

MEPED-90 30 keV to 80 keV protons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Proton
ParticleQuantity
CountRate
EnergyRange
Low
30
High
80
Units
keV
Parameter #23
Name
MEPED-90 80 keV to 240 keV protons.
ParameterKey
mep90p2
Description

MEPED-90 80 keV to 240 keV protons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Proton
ParticleQuantity
CountRate
EnergyRange
Low
80
High
240
Units
keV
Parameter #24
Name
MEPED-90 240 keV to 800 keV protons.
ParameterKey
mep90p3
Description

MEPED-90 240 keV to 800 keV protons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Proton
ParticleQuantity
CountRate
EnergyRange
Low
240
High
800
Units
keV
Parameter #25
Name
MEPED-90 800 keV to 2500 keV protons.
ParameterKey
mep90p4
Description

MEPED-90 800 keV to 2500 keV protons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Proton
ParticleQuantity
CountRate
EnergyRange
Low
800
High
2500
Units
keV
Parameter #26
Name
MEPED-90 2500 keV to 6900 keV protons.
ParameterKey
mep90p5
Description

MEPED-90 2500 keV to 6900 keV protons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Proton
ParticleQuantity
CountRate
EnergyRange
Low
2500
High
6900
Units
keV
Parameter #27
Name
MEPED-90 > 6900 keV protons.
ParameterKey
mep90p6
Description

MEPED-90 >6900 keV protons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Proton
ParticleQuantity
CountRate
Parameter #28
Name
MEPED omni-directional > 16 MeV protons
ParameterKey
mepomp6
Description

MEPED omni-directional >16 MeV protons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Proton
ParticleQuantity
CountRate
Parameter #29
Name
MEPED omni-directional > 36 MeV protons
ParameterKey
mepomp7
Description

MEPED omni-directional >36 MeV protons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Proton
ParticleQuantity
CountRate
Parameter #30
Name
MEPED omni-directional > 70 MeV protons
ParameterKey
mepomp8
Description

MEPED omni-directional >70 MeV protons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Proton
ParticleQuantity
CountRate
Parameter #31
Name
MEPED omni-directional >= 140 MeV protons
ParameterKey
mepomp9
Description

MEPED omni-directional >=140 MeV protons.

Units
counts/s
FillValue
-999
Particle
ParticleType
Proton
ParticleQuantity
CountRate
Parameter #32
Name
Total Energy Detector (TED) Average
ParameterKey
ted
Description

TED, Total Energy Detector Average.

Units
ergs/cm2/sec
FillValue
-999
Particle
ParticleType
Proton
ParticleType
Electron
ParticleQuantity
EnergyFlux
Parameter #33
Name
TED Characteristic Energy of Electrons
ParameterKey
echar
Description

TED characteristic energy of electrons.

Units
eV
FillValue
-999
Particle
ParticleType
Electron
Qualifier
Total
ParticleQuantity
Energy
Parameter #34
Name
TED Characteristic Energy of Protons
ParameterKey
pchar
Description

TED characteristic energy of protons.

Units
eV
FillValue
-999
Particle
ParticleType
Proton
Qualifier
Total
ParticleQuantity
Energy
Parameter #35
Name
TED electron contribution
ParameterKey
econtr
Description

TED electron contribution.

ValidMin
0
ValidMax
1
FillValue
-999
Particle
ParticleType
Electron
Qualifier
Ratio
ParticleQuantity
Energy