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Data Access
HAPI: CDAWeb HAPI Server
HTTPS from SPDF
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WebService:
CDAWeb Programmatic Data Access
ICON Extreme Ultraviolet Spectrograph Images
var authors='Stephan, A. W.';
document.write(authors);
(2023).
ICON Extreme Ultraviolet Spectrograph Images .
[Data set].
Space Physics Data Facility.
https://doi.org/10.48322/hwg4-hw39. Accessed on document.write(currentDateStr);.
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ResourceID
spase://NASA/NumericalData/ICON/EUV/L2/PT1S
Description
This describes the data produce for ICON EUV Daytime O+ (DP 2.6), which is in NetCDF4 format. These files are named ICON_L2-6_EUV_YYYY-MM-DD_vXXrZZ.NC, where YYYY-MM-DD is the year month day and VXX shows the version number and rZZ shows the revision number of this file. Each individual file nominally contains 1 day (24 hours) of data. The L2 EUV Daytime files are produced from the L1 EUV files, and their primary data product is the O+ profile derived from a retrieval that is detailed in a paper: https://doi.org/10.1007/s11214-017-0385-1. In addition, many other parameters and geophysical data products are included in the file. The data are identified in one of 3 var_types: data – which contains the primary data product; support data – which contains parameters used in the retrieval such as geometry etc. that may also be useful in any analysis of this data; and ignore_data – which are recorded for debugging purposes and should not be used for publication without detailed discussion with the ICON team. The dimensions of the data also indicate its type. For example, anything with epoch as a dimension means there is 1 value corresponding to each instrument exposure. Anything with dimension Input_data corresponds to the input data, passed from Level 1. Anything with a dimension of model refers to the forward model parameters used as part of the inversion. Anything with dimension altitude corresponds to the altitude grid used for the inverted parameters.
Metadata Rights
CC0-1.0:
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions. The actual data/software may be subject to a different license.
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Details
Version:2.7.1
NumericalData
ResourceID
spase://NASA/NumericalData/ICON/EUV/L2/PT1S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
ICON Extreme Ultraviolet Spectrograph Images
AlternateName
EUV Images
DOI
https://doi.org/10.48322/hwg4-hw39
ReleaseDate
2026-07-21 12:05:17Z
RevisionHistory
RevisionEvent
ReleaseDate
2023-08-01 00:00:00Z
Note
Added DOI and PublicationInfo minted by JMW on 20230801. Updated SPASE version.
RevisionEvent
ReleaseDate
2024-05-01 00:00:00Z
Note
Updated SPASE version. Edited AccessInformation. JMW
RevisionEvent
ReleaseDate
2024-05-08 00:00:00Z
Note
Added Stop Date. JMW
RevisionEvent
ReleaseDate
2025-10-02 15:11:59Z
Note
Updated PublishedBy name to match ROR Registry. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:29:31Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-06-26 13:17:45Z
Note
Add 'Z' to PublicationDate. ZCB
RevisionEvent
ReleaseDate
2026-07-21 12:05:17Z
Note
Added HelioData InformationURL. JWL
Description
This describes the data produce for ICON EUV Daytime O+ (DP 2.6), which is in NetCDF4 format. These files are named ICON_L2-6_EUV_YYYY-MM-DD_vXXrZZ.NC, where YYYY-MM-DD is the year month day and VXX shows the version number and rZZ shows the revision number of this file. Each individual file nominally contains 1 day (24 hours) of data. The L2 EUV Daytime files are produced from the L1 EUV files, and their primary data product is the O+ profile derived from a retrieval that is detailed in a paper: https://doi.org/10.1007/s11214-017-0385-1. In addition, many other parameters and geophysical data products are included in the file. The data are identified in one of 3 var_types: data – which contains the primary data product; support data – which contains parameters used in the retrieval such as geometry etc. that may also be useful in any analysis of this data; and ignore_data – which are recorded for debugging purposes and should not be used for publication without detailed discussion with the ICON team. The dimensions of the data also indicate its type. For example, anything with epoch as a dimension means there is 1 value corresponding to each instrument exposure. Anything with dimension Input_data corresponds to the input data, passed from Level 1. Anything with a dimension of model refers to the forward model parameters used as part of the inversion. Anything with dimension altitude corresponds to the altitude grid used for the inverted parameters.
Acknowledgement
National Aeronautics and Space Administration; Dr. Andrew W. Stephan; Dr. Thomas Immel
PublicationInfo
Authors
Stephan, A. W.
PublicationDate
2023-01-01 00:00:00Z
PublishedBy
Space Physics Data Facility
Funding
Agency
National Aeronautics and Space Administration
Project
Explorers Program
AwardNumber
NNG12FA45C
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/Andrew.W.Stephan
InformationURL
Name
Additional information on ICON
URL
https://icon.ssl.berkeley.edu/
Description
ICON spacecraft Homepage.
InformationURL
Name
Design and Performance of the ICON EUV Spectrograph
URL
https://doi.org/10.1007/s11214-017-0384-2
Description
Space Science Reviews, 212(1-2), pp.631-643. DOI: 10.1007/s11214-017-0384-2
InformationURL
Name
HelioData
URL
https://helio.data.nasa.gov/dataset/ICON_EUV_L2_PT1S
Description
The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more.
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products
AccessURL
Name
CDAWeb HAPI Server
URL
https://cdaweb.gsfc.nasa.gov/hapi
Style
HAPI
ProductKey
ICON_L2-6_EUV
Description
Web Service to this product using the HAPI interface.
Format
NetCDF
Acknowledgement
Please acknowledge Dr. Andrew W. Stephan and Dr. Thomas Immel. Please acknowledge the Data Providers and CDAWeb when using these Data.
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/icon/l2/l2-6_euv/
ProductKey
ICON_L2-6_EUV
Description
Access to Data in NetCDF Format via https from SPDF
AccessURL
Name
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=ICON_L2-6_EUV&index=sp_phys
ProductKey
ICON_L2-6_EUV
Description
Access to NetCDFs via NASA/GSFC CDAWeb
Format
NetCDF
Encoding
None
AccessDirectoryTemplate
https://cdaweb.gsfc.nasa.gov/pub/data/icon/l2/l2-6_euv/$Y
AccessFilenameTemplate
icon_l2-6_euv_$Y$m$d_v01r000.nc
Acknowledgement
Please acknowledge Dr. Andrew W. Stephan and Dr. Thomas Immel. Please acknowledge the Data Providers and CDAWeb when using these Data.
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb Programmatic Data Access
URL
https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/ICON_L2-6_EUV/clientLibraryExample/
Style
WebService
ProductKey
ICON_L2-6_EUV
Description
Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS.
Format
Binary
Acknowledgement
Please acknowledge Dr. Andrew W. Stephan and Dr. Thomas Immel. Please acknowledge the Data Providers and CDAWeb when using these Data.
ProcessingLevel
Calibrated
ProviderName
ICON EUV team
InstrumentIDs
spase://SMWG/Instrument/ICON/EUV
MeasurementType
ImageIntensity
TemporalDescription
TimeSpan
StartDate
2019-12-06 00:00:00Z
StopDate
2024-11-24 23:59:59Z
Cadence
PT1S
ObservedRegion
Earth.NearSurface.Atmosphere
ObservedRegion
Earth.NearSurface.Ionosphere
Parameter #1
Name
Epoch Time
ParameterKey
Epoch
Description
Sample time, midpoint of exposure. Number of msec since Jan 1, 1970.
Cadence
PT1S
Units
ms
ValidMin
0
ValidMax
6000000000000
FillValue
-999
Support
Qualifier
Magnitude
SupportQuantity
Temporal
Parameter #2
Name
Activity Status of the EUV Instrument
ParameterKey
ICON_L26_Activity
Description
Flag for activity status of the EUV instrument, as defined in the Ephemeris Definition Document.
Cadence
PT1S
ValidMin
0
ValidMax
1024
FillValue
-999
Support
Qualifier
Scalar
SupportQuantity
InstrumentMode
Parameter #3
Name
Altitude of the Retrieved Quantities
ParameterKey
ICON_L26_Altitude
Description
Altitude corresponding to the retrieved quantities, in WGS84.
Cadence
PT1S
Units
km
FillValue
-999
Support
Qualifier
Direction
SupportQuantity
Positional
Parameter #4
Name
Ap Index
ParameterKey
ICON_L26_Ap
Description
Value of the Ap index used in the retrieval, from GPI file.
Cadence
PT1S
ValidMin
0
ValidMax
400
FillValue
-999
Field
Qualifier
Scalar
FieldQuantity
Magnetic
Parameter #5
Name
Local Earth Radius at Retrieval
ParameterKey
ICON_L26_Earth_Radius
Description
Local Earth Radius at Retrieval location, from WGS.
Cadence
PT1S
Units
km
ValidMin
0
ValidMax
7000
FillValue
-999
Support
Qualifier
Scalar
SupportQuantity
Other
Parameter #6
Name
F10.7 Values
ParameterKey
ICON_L24_F107
Description
F10.7 values used, from GPI file, in solar flux units.
Cadence
PT1S
Units
sfu
ValidMin
0
ValidMax
999
FillValue
-999
Wave
WaveType
Photon
Qualifier
Scalar
WaveQuantity
EnergyFlux
Parameter #7
Name
F10.7a Values
ParameterKey
ICON_L24_F107a
Description
F10.7a values used, from GPI file, in solar flux units.
Cadence
PT1S
Units
sfu
ValidMin
0
ValidMax
999
FillValue
-999
Wave
WaveType
Photon
Qualifier
Scalar
WaveQuantity
EnergyFlux
Parameter #8
Name
Retrieval Flags
ParameterKey
ICON_L26_Flags
Description
Quality flag associated with the retrieval and L1 data.
Cadence
PT1S
FillValue
-999
Support
Qualifier
Scalar
SupportQuantity
DataQuality
Parameter #9
Name
Height of F2 layer from Retrieval
ParameterKey
ICON_L26_HmF2
Description
Height of the peak of the F2 layer from Retrieval, in WGS.
Cadence
PT1S
Units
km
ValidMin
0
ValidMax
1000
FillValue
-999
Support
Qualifier
Scalar
SupportQuantity
Positional
Parameter #10
Name
Input Altitude
ParameterKey
ICON_L26_Input_Altitude
Description
*Diagnostic* Tangent altitudes corresponding to the input data, in WGS84.
Cadence
PT1S
Units
km
ValidMin
0
ValidMax
1000
FillValue
-999
Support
Qualifier
Direction
SupportQuantity
Positional
Parameter #11
Name
Input Covariance for 61.7 nm
ParameterKey
ICON_L26_Input_Covariance_617
Description
*Diagnostic* Covariance of the observed Radiance in the 61.7 nm wavelength channel.
Cadence
PT1S
Units
Rayleighs^2
ValidMin
0
ValidMax
1000000015047466219876688855040
FillValue
-999
Support
Qualifier
Variance
SupportQuantity
DataQuality
Parameter #12
Name
Input Covariance for 83.4 nm
ParameterKey
ICON_L26_Input_Covariance_834
Description
*Diagnostic* Covariance of the observed Radiance in the 83.4 nm wavelength channel.
Cadence
PT1S
Units
Rayleighs^2
ValidMin
0
ValidMax
1000000015047466219876688855040
FillValue
-999
Support
Qualifier
Variance
SupportQuantity
DataQuality
Parameter #13
Name
Input Filename
ParameterKey
ICON_L26_Input_Filename
Description
Name of the L1 file used with the input data.
Cadence
PT1S
Units
string
Support
Qualifier
Scalar
SupportQuantity
Other
Parameter #14
Name
Input Radiance 61.7 nm
ParameterKey
ICON_L26_Input_Radiance_617
Description
*Diagnostic* Observed Radiance in the 61.7 nm wavelength channel.
Cadence
PT1S
Units
Rayleighs
ValidMin
0
ValidMax
1000000015047466219876688855040
FillValue
-999
Wave
WaveType
Photon
Qualifier
Scalar
WaveQuantity
Intensity
Parameter #15
Name
Input Radiance 83.4 nm
ParameterKey
ICON_L26_Input_Radiance_834
Description
*Diagnostic* Observed Radiance in the 83.4 nm wavelength channel.
Cadence
PT1S
Units
Rayleighs
ValidMin
0
ValidMax
1000000015047466219876688855040
FillValue
-999
Wave
WaveType
Photon
Qualifier
Scalar
WaveQuantity
Intensity
Parameter #16
Name
Geodetic Latitude
ParameterKey
ICON_L26_Latitude
Description
Geodetic Latitude at retrieval location, referenced at 300 km altitude, in WGS.
Cadence
PT1S
Units
degrees
ValidMin
-90
ValidMax
90
FillValue
-999
Support
Qualifier
Direction
SupportQuantity
Positional
Parameter #17
Name
Local Solar Time
ParameterKey
ICON_L26_Local_Solar_Time
Description
Local solar time at Retrieval.
Cadence
PT12S
Units
hours
ValidMin
0
ValidMax
24
FillValue
-999
Support
Qualifier
Direction
SupportQuantity
Positional
Parameter #18
Name
Geodetic Longitude
ParameterKey
ICON_L26_Longitude
Description
Geodetic Longitude at retrieval location, referenced at 300 km altitude in WGS.
Cadence
PT1S
Units
degrees
ValidMin
0
ValidMax
360
FillValue
-999
Support
Qualifier
Direction
SupportQuantity
Positional
Parameter #19
Name
Magnetic Latitude
ParameterKey
ICON_L26_Magnetic_Latitude
Description
Quasi-Dipole Magnetic Latitude at 300 km at Retrieval location, in degrees.
Cadence
PT1S
Units
degrees
ValidMin
-90
ValidMax
90
FillValue
-999
Support
Qualifier
Direction
SupportQuantity
Positional
Parameter #20
Name
Magnetic Longitude
ParameterKey
ICON_L26_Magnetic_Longitude
Description
Quasi-Dipole Magnetic Longitude at 300 km at Retrieval location, in degrees.
Cadence
PT1S
Units
degrees
ValidMin
-180
ValidMax
180
FillValue
-999
Support
Qualifier
Direction
SupportQuantity
Positional
Parameter #21
Name
Model Change
ParameterKey
ICON_L26_Model_Change
Description
'*Diagnostic* A value of 1 shows which forward model parameters are set to change during the retrieval, where the parameters are in order, Rz12 multiplier, ig12 multiplier, IRI F107 multiplier, density scalar, and the j0 multiplier'.
Cadence
PT1S
Units
unitless
ValidMin
0
ValidMax
999
FillValue
-999
Support
Qualifier
Scalar
SupportQuantity
Other
Parameter #22
Name
Model Covariance
ParameterKey
ICON_L26_Model_Covariance
Description
*Diagnostic* Covariance matrix of the model parameters from the retrieval.
Cadence
PT1S
Units
unitless
ValidMin
0
ValidMax
1000000015047466219876688855040
FillValue
-999
Support
Qualifier
Tensor
SupportQuantity
Other
Parameter #23
Name
Model Lower Limit
ParameterKey
ICON_L26_Model_Lower_Limit
Description
*Diagnostic* Lower limit of the parameters used in the forward model, which are in order, Rz12 multiplier, ig12 multiplier, IRI F107 multiplier, density scalar, and the j0 multiplier.
Cadence
PT1S
Units
unitless
ValidMin
-1000
ValidMax
1000
FillValue
-999
Support
Qualifier
Fit
SupportQuantity
Other
Parameter #24
Name
Model Parameters
ParameterKey
ICON_L26_Model_Parameters
Description
*Diagnostic* Parameters used in the forwared model, which are in order, Rz12 multiplier, ig12 multiplier, IRI F107 multiplier, density scalar, and the j0 multiplier.
Cadence
PT1S
Units
unitless
ValidMin
0
ValidMax
999
FillValue
-999
Support
Qualifier
Fit
SupportQuantity
Other
Parameter #25
Name
Model Parameters Initial
ParameterKey
ICON_L26_Model_Parameters_Initial
Description
*Diagnostic* Initial values of the parameters used in the forward model, which are in order, Rz12 multiplier, ig12 multiplier, IRI F107 multiplier, density scalar, and the j0 multiplier.
Cadence
PT1S
Units
unitless
ValidMin
0
ValidMax
999
FillValue
-999
Support
Qualifier
Fit
SupportQuantity
Other
Parameter #26
Name
Model Upper Limit
ParameterKey
ICON_L26_Model_Upper_Limit
Description
*Diagnostic* Upper limit of the parameters used in the forward model, which are in order, Rz12 multiplier, ig12 multiplier, IRI F107 multiplier, density scalar, and the j0 multiplier.
Cadence
PT1S
Units
unitless
ValidMin
0
ValidMax
999
FillValue
-999
Support
Qualifier
Fit
SupportQuantity
Other
Parameter #27
Name
O+ density at the peak of the F2 layer from Retrieval
ParameterKey
ICON_L26_NmF2
Description
O+ density at the peak of the F2 layer from Retrieval.
Cadence
PT1S
Units
1/cm^3
ValidMin
0
ValidMax
10000000000
FillValue
-999
Particle
ParticleType
Ion
Qualifier
LineOfSight
ParticleQuantity
NumberDensity
AtomicNumber
8
Parameter #28
Name
WGS84 Altitude of s/c Position (Geodetic)
ParameterKey
ICON_L26_Observatory_Altitude
Description
Altitude of the spacecraft at the time of data collection, in WGS84.
Cadence
PT1S
Units
km
ValidMin
0
ValidMax
1000
FillValue
-999
Support
Qualifier
Direction
SupportQuantity
Positional
Parameter #29
Name
Earth Centered Earth Fixed Spacecraft Position
ParameterKey
ICON_L26_Observatory_ECEF
Description
Location of the spacecraft in ECEF coordinates at the time of data collection. Dimension corresponding to the X, Y, Z components of Cartesian vector.
Cadence
PT1S
Units
km
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
ECEF
Structure
Size
3 2069
Description
Spacecraft Position in ECEF Coordinates
Element
Name
X
Index
1
Units
km
ValidMin
6000
ValidMax
10000
FillValue
-999
Element
Name
Y
Index
2
Units
km
ValidMin
6000
ValidMax
10000
FillValue
-999
Element
Name
Z
Index
3
Units
km
ValidMin
6000
ValidMax
10000
FillValue
-999
Support
Qualifier
Direction
SupportQuantity
Positional
Parameter #30
Name
WGS84 Latitude of Spacecraft Position (Geodetic)
ParameterKey
ICON_L26_Observatory_Latitude
Description
Geographic latitude of the spacecraft at the time of data collection, in WGS84.
Cadence
PT1S
Units
degrees
ValidMin
-90
ValidMax
90
FillValue
-999
Support
Qualifier
Direction
SupportQuantity
Positional
Parameter #31
Name
WGS84 Latitude of Spacecraft Position (Geodetic)
ParameterKey
ICON_L26_Observatory_Longitude
Description
Geographic longitude of the spacecraft at the time of data collection, in WGS84.
Cadence
PT1S
Units
degrees
ValidMin
0
ValidMax
360
FillValue
-999
Support
Qualifier
Direction
SupportQuantity
Positional
Parameter #32
Name
Number density of O+
ParameterKey
ICON_L26_Oplus
Description
Number density of O+ as a function of altitude found in the retrieval.
Cadence
PT1S
Units
1/cm^3
FillValue
-999
Particle
ParticleType
Ion
Qualifier
LineOfSight
ParticleQuantity
NumberDensity
AtomicNumber
8
Parameter #33
Name
Orbit Number
ParameterKey
ICON_L26_Orbit_Number
Description
Integer orbit number of the ICON spacecraft, incremented throughout the mission.
Cadence
PT1S
Units
integer
ValidMin
0
ValidMax
105000
FillValue
-999
Support
Qualifier
Scalar
SupportQuantity
Temporal
Parameter #34
Name
Processing Date
ParameterKey
ICON_L26_Processing_Date
Description
Date on which this file was generated by the Science Data Center.
Cadence
PT1S
Units
string
Support
Qualifier
Scalar
SupportQuantity
Other
Parameter #35
Name
Radiance 61.7 nm
ParameterKey
ICON_L26_Radiance_617
Description
Radiance profile of 61.7 nm emission produced by the forward model during the retrieval.
Cadence
PT1S
Units
Rayleighs
ValidMin
0
ValidMax
1000000015047466219876688855040
FillValue
-999
Wave
WaveType
Photon
Qualifier
Scalar
WaveQuantity
Intensity
Parameter #36
Name
Radiance 83.4 nm
ParameterKey
ICON_L26_Radiance_834
Description
Radiance profile of 83.4 nm emission produced by the forward model during the retrieval.
Cadence
PT1S
Units
Rayleighs
ValidMin
0
ValidMax
1000000015047466219876688855040
FillValue
-999
Wave
WaveType
Photon
Qualifier
Scalar
WaveQuantity
Intensity
Parameter #37
Name
Retrieval Flags
ParameterKey
ICON_L26_SC_Slew_Status
Description
Flag corresponding to slew of the spacecraft during the time of data collection as defined in the ephemeris definition document.
Cadence
PT1S
ValidMin
0
ValidMax
1024
FillValue
-999
Support
Qualifier
Scalar
SupportQuantity
InstrumentMode
Parameter #38
Name
1 sigma in Height of F2 layer from Retrieval
ParameterKey
ICON_L26_Sigma_HmF2
Description
1 sigma in Height of F2 layer peak from retrieval.
Cadence
PT1S
Units
Rayleighs
ValidMin
0
ValidMax
1000
FillValue
-999
Wave
WaveType
Photon
Qualifier
Scalar
WaveQuantity
Intensity
Parameter #39
Name
1 sigma in Density of F2 layer from Retrieval
ParameterKey
ICON_L26_Sigma_NmF2
Description
1 sigma in O+ density at the peak of the F2 layer from retrieval.
Cadence
PT1S
Units
cm-3
ValidMin
0
ValidMax
10000000000
FillValue
-999
Particle
ParticleType
Ion
Qualifier
LineOfSight
ParticleQuantity
NumberDensity
AtomicNumber
8
Parameter #40
Name
1 Sigma in the Number Density of O+
ParameterKey
ICON_L26_Sigma_Oplus
Description
1 sigma in the number density of O+ as a function of altitude found in the retrieval.
Cadence
PT1S
Units
cm-3
FillValue
-999
Particle
ParticleType
Ion
Qualifier
LineOfSight
ParticleQuantity
NumberDensity
AtomicNumber
8
Parameter #41
Name
Solar Zenith Angle at Retrieval Location
ParameterKey
ICON_L26_Solar_Zenith_Angle
Description
Solar Zenith Angle at retrieval location.
Cadence
PT12S
Units
degrees
ValidMin
0
ValidMax
180
FillValue
-999
Support
Qualifier
Direction
SupportQuantity
Positional
Parameter #42
Name
Space Environment Region Status
ParameterKey
ICON_L26_Space_Environment_Region_Status
Description
Flag corresponding to space environment region as defined in the ephemeris definition document during the time of data collection.
Cadence
PT1S
ValidMin
0
ValidMax
268405455
FillValue
-999
Support
Qualifier
Scalar
SupportQuantity
Other
Parameter #43
Name
Binary Coded Integer Describing the View Status of EUV
ParameterKey
ICON_L26_Status
Description
Flag for activity status of the spacecraft, as defined in the Ephemeris Definition Document.
Cadence
PT1S
ValidMin
0
ValidMax
1024
FillValue
-999
Support
Qualifier
Scalar
SupportQuantity
InstrumentMode
Parameter #44
Name
Spacecraft Sun/Shadow Status Code
ParameterKey
ICON_L26_Sun_Status
Description
Flag for activity status of the sun on the spacecraft, as defined in the Ephemeris Definition Document. 0=Sun 1=Earth Shadow.
Cadence
PT1S
ValidMin
0
ValidMax
1
FillValue
-999
Support
Qualifier
Scalar
SupportQuantity
Other
Parameter #45
Name
Date and Time in UTC format
ParameterKey
ICON_L26_UTC_Time
Description
UTC time corresponding to the retrieval.
Cadence
PT1S
FillValue
' '
Support
Qualifier
Magnitude
SupportQuantity
Temporal
Parameter #46
Name
UT Seconds
ParameterKey
ICON_L26_UT_Seconds
Description
UTC time in seconds since midnight corresponding to the time of the retrieval.
Cadence
PT1S
Units
seconds
FillValue
-999
Support
Qualifier
Magnitude
SupportQuantity
Temporal
Parameter #47
Name
Unreduced Chi^2
ParameterKey
ICON_L26_Unreduced_Chi2
Description
Unreduced Chi Squared values from the retrieval.
Cadence
PT1S
Units
unitless
FillValue
-999
Support
Qualifier
Scalar
SupportQuantity
Other
Parameter #48
Name
Integer Year DOY
ParameterKey
ICON_L26_Year_DOY
Description
Year and Day of Year corresponding to the retrieval, in the format of YYYYDOY.
Cadence
PT1S
Units
day
ValidMin
2015000
ValidMax
2050000
FillValue
-999
Support
Qualifier
Magnitude
SupportQuantity
Temporal