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Data Access
SEE Data Products web page
FTPS from SPDF (not with most browsers)
HTTPS from SPDF
CDAWeb
WebService:
CDAWeb Programmatic Data Access
HAPI: CDAWeb HAPI Server
TIMED SEE Level 3A Solar Irradiance Data
var authors='Woods, Thomas, N.';
document.write(authors);
(2023).
TIMED SEE Level 3A Solar Irradiance Data.
[Data set].
Johns Hopkins University Applied Physics Laboratory; Space Physics Data Facility.
https://doi.org/10.48322/3x4k-mx60. Accessed on document.write(currentDateStr);.
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or other formats, should include the "Accessed on date" to identify the version of the resource being cited in a given publication.
ResourceID
spase://NASA/NumericalData/TIMED/SEE/L3A
Description
SEE Level 3A data files contain each measurements averaged solar irradiance spectrum in 1 nm intervals extracted from the EGS Level 2A and XPS Level 2A data products. Shortward of 27 nm, a solar model is scaled to match the XPS broadband data. SEE Level 3A data files also contain 38 emission lines extracted from EGS Level 2A spectra, and the XPS Level 2A diode irradiances. For normal operations, SEE observes the Sun for about 3 minutes every orbit (97 minutes), which usually gives 14-15 measurements per day. The SEE Level 3A data are time averaged over each measurement, after applying corrections for atmospheric absorption, degradation, flare removal, and to 1-AU.
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/TIMED/SEE/L3A
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
TIMED SEE Level 3A Solar Irradiance Data
DOI
https://doi.org/10.48322/3x4k-mx60
ReleaseDate
2026-06-26 13:29:57Z
RevisionHistory
RevisionEvent
ReleaseDate
2021-04-27 15:38:11Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2023-07-30 12:34:56.789Z
Note
Added DOI and PublicationInfo minted by LFB, metadata versioned up to SPASE 2.6.0, reviewed by LFB 20230727
RevisionEvent
ReleaseDate
2025-10-03 11:24:15Z
Note
Updated PublishedBy name to match ROR Registry. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:32:07Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-06-26 13:29:57Z
Note
Add 'Z' to RevisionEvent:ReleaseDate(s), PublicationDate, TemporalDescription:TimeSpan:StartDate. ZCB
Description
SEE Level 3A data files contain each measurements averaged solar irradiance spectrum in 1 nm intervals extracted from the EGS Level 2A and XPS Level 2A data products. Shortward of 27 nm, a solar model is scaled to match the XPS broadband data. SEE Level 3A data files also contain 38 emission lines extracted from EGS Level 2A spectra, and the XPS Level 2A diode irradiances. For normal operations, SEE observes the Sun for about 3 minutes every orbit (97 minutes), which usually gives 14-15 measurements per day. The SEE Level 3A data are time averaged over each measurement, after applying corrections for atmospheric absorption, degradation, flare removal, and to 1-AU.
Acknowledgement
NASA, Thomas N. Woods
PublicationInfo
Authors
Woods, Thomas, N.
PublicationDate
2023-01-01 00:00:00Z
PublishedBy
Johns Hopkins University Applied Physics Laboratory; Space Physics Data Facility
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/Thomas.N.Woods
2.
MetadataContact
spase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
L3 Data Information
URL
http://lasp.colorado.edu/home/see/data/observational-averages/level-3a/
PriorIDs
spase://VITMO/NumericalData/TIMED/SEE/L3A
spase://VSPO/NumericalData/TIMED/SEE/L3A
AccessInformation
RepositoryID
spase://SMWG/Repository/TIMED/SEE_POC
Availability
Online
AccessRights
Open
AccessURL
Name
SEE Data Products web page
URL
http://lasp.colorado.edu/home/see/data/
Description
This web page allows the request of data files for this product. To request data: for the L3A data type of interest, click the year of interest to go the the ftp directory of files and download the desired day-long file by clicking on it.
Format
NetCDF
Encoding
None
Acknowledgement
NASA, Thomas N. Woods
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
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/timed/see/data/level3a_cdf/
Description
FTP repository of TIMED SEE Level 3A Solar Irradience data in CDF format at CDAWeb
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/timed/see/data/level3a_cdf/
Description
In CDF via HTTP from SPDF
Format
CDF
Acknowledgement
Please acknowledge the support from CDAWeb team at GSFC/SPDF.
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
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=TIMED_L3A_SEE&index=sp_phys
ProductKey
TIMED_L3A_SEE
Description
TIMED SEE L3A data with subset, plot, list from CDAWeb
Format
Text
AccessDirectoryTemplate
https://cdaweb.gsfc.nasa.gov/pub/data/timed/see/data/level3a_cdf/$Y/$m
AccessFilenameTemplate
timed_l3a_see_$Y$m$d_$v.cdf
Acknowledgement
Please acknowledge the support from the CDAWeb team at GSFC/SPDF.
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/TIMED_L3A_SEE/clientLibraryExample/
Style
WebService
ProductKey
TIMED_L3A_SEE
Description
Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS.
Format
Binary
Acknowledgement
Please acknowledge the support from the CDAWeb team at GSFC/SPDF.
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
TIMED_L3A_SEE
Description
Web Service to this product using the HAPI interface.
Format
CSV
Acknowledgement
Please acknowledge the support from the CDAWeb team at GSFC/SPDF.
ProcessingLevel
Calibrated
ProviderResourceName
SEE Level 3A Solar Irradiance data
ProviderProcessingLevel
Level 3A
ProviderVersion
10.02
InstrumentIDs
spase://SMWG/Instrument/TIMED/SEE
MeasurementType
Irradiance
TemporalDescription
TimeSpan
StartDate
2002-01-22 00:00:00.000Z
RelativeStopDate
P2D
ObservedRegion
Sun
Keywords
TIMED
SEE
Sun
Parameter #1
Name
solar irradiance spectrum
ParameterKey
SP.FLUX
Description
Merged Solar irradiance for XPS and EGS flux at 1nm bins with gaps filled using Woods-Rottman 2002 VUV model. Below 26 nm, flux is result of solution of linear equations involving XPS diodes and scaled to the VUV model. EGS data is used above 26 nm except 114.5-120.5 and 122.5-128.5 nm where the VUV model is scaled to the EGS Lyman-alpha line.
Units
W / m^2 / nm
Wave
WaveType
Electromagnetic
WaveQuantity
Wavelength
WavelengthRange
Low
0.5
High
194.5
Units
nm