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Data Access
File:
EVE data access page
SDO/EVE Level 2 Version 8 Data
var authors='Laboratory for Atmospheric and Space Physics, University of Colorado (USA); Space Sciences Center, University of Southern California (USA)';
document.write(authors);
(2024).
SDO/EVE Level 2 Version 8 Data.
[Data set].
Laboratory for Atmospheric and Space Physics.
https://doi.org/10.48322/6y24-z443. 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/SDO/EVE/Level2/Version8/PT10S
Description
EVE level 2 data files were created at the Laboratory for Atmospheric and Space Physics in Boulder, Colorado for the NASA Solar Dynamics Observatory (SDO) Extreme Ultraviolet Variability Experiment (EVE). The Science Processing and Operations Center (SPOC) is responsible for creating and maintaining access to all EVE products. For a high-level introduction to the EVE instrumentation please visit:
https://lasp.colorado.edu/eve/science/instrument/
Level 2 products are defined to contain 10-second intervals and span the time range from 2010 day 120 through 2018 day 108. The integration rate was changed to 60-seconds so the level 2B products were created to provide future spectra. This release of EVE Level 2 data products replaces all previous versions. We have made significant effort at verification and validation, but if you have any questions or encounter any problems with the data, please let us know about them.
Two types of EVE level 2 products are routinely created: Spectra (EVS) and Lines (EVL). Level 2 spectra are the merged spectral measurements from the two spectrographs, MEGS-A and MEGS-B. The A detector is designed to measure from 6 –17 nm, and 17–37 nm using two filters, while the B detector is designed to measure 37–106. After the MEGS-A anomaly, MEGS-B was extended down to 33.33 nm.
Level 2 processing stitches these pieces to form one spectrum. This version includes all measured wavelengths. The file spans 3.01-106.99 nm, but this extends beyond where there is no signal on the detectors, so there will be fill values at the extreme ends of the range. All level 2 irradiances are adjusted to 1 AU. Level 2 lines files contain selected lines derived from the level 2 spectra, ESP diode values and bands that correspond to other SDO instruments and some derived proxies.
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/SDO/EVE/Level2/Version8/PT10S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
SDO/EVE Level 2 Version 8 Data
DOI
https://doi.org/10.48322/6y24-z443
ReleaseDate
2025-12-04 13:31:24Z
RevisionHistory
RevisionEvent
ReleaseDate
2024-06-13 00:00:00Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2024-12-02 00:08:46
Note
Metadata created by SY
RevisionEvent
ReleaseDate
2025-02-05 00:08:46
Note
Updated Authors
RevisionEvent
ReleaseDate
2025-02-25 00:08:46
Note
Added DOI by SY
RevisionEvent
ReleaseDate
2025-09-18 11:27:07Z
Note
Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. ZCB
RevisionEvent
ReleaseDate
2025-09-30 14:25:19Z
Note
Updated PublishedBy name to match ROR Registry. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:31:24Z
Note
Added MetadataRightsList. Updated to 2.7.1. ZCB
Description
EVE level 2 data files were created at the Laboratory for Atmospheric and Space Physics in Boulder, Colorado for the NASA Solar Dynamics Observatory (SDO) Extreme Ultraviolet Variability Experiment (EVE). The Science Processing and Operations Center (SPOC) is responsible for creating and maintaining access to all EVE products. For a high-level introduction to the EVE instrumentation please visit:
https://lasp.colorado.edu/eve/science/instrument/
Level 2 products are defined to contain 10-second intervals and span the time range from 2010 day 120 through 2018 day 108. The integration rate was changed to 60-seconds so the level 2B products were created to provide future spectra. This release of EVE Level 2 data products replaces all previous versions. We have made significant effort at verification and validation, but if you have any questions or encounter any problems with the data, please let us know about them.
Two types of EVE level 2 products are routinely created: Spectra (EVS) and Lines (EVL). Level 2 spectra are the merged spectral measurements from the two spectrographs, MEGS-A and MEGS-B. The A detector is designed to measure from 6 –17 nm, and 17–37 nm using two filters, while the B detector is designed to measure 37–106. After the MEGS-A anomaly, MEGS-B was extended down to 33.33 nm.
Level 2 processing stitches these pieces to form one spectrum. This version includes all measured wavelengths. The file spans 3.01-106.99 nm, but this extends beyond where there is no signal on the detectors, so there will be fill values at the extreme ends of the range. All level 2 irradiances are adjusted to 1 AU. Level 2 lines files contain selected lines derived from the level 2 spectra, ESP diode values and bands that correspond to other SDO instruments and some derived proxies.
PublicationInfo
Authors
Laboratory for Atmospheric and Space Physics, University of Colorado (USA); Space Sciences Center, University of Southern California (USA)
PublicationDate
2024-06-13 00:00:00
PublishedBy
Laboratory for Atmospheric and Space Physics
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/Thomas.N.Woods
2.
GeneralContact
spase://SMWG/Person/Don.Woodraska
InformationURL
Name
The SDO EVE Website
URL
https://lasp.colorado.edu/home/eve/
InformationURL
Name
The SDO/EVE Instrument paper
URL
https://doi.org/10.1007/s11207-009-9487-6
InformationURL
Name
README
URL
https://lasp.colorado.edu/eve/data_access/eve_data/products/level2/EVE_L2_V8_README.pdf
AccessInformation
RepositoryID
spase://SMWG/Repository/UCOLO/LASP/SDO
Availability
Online
AccessRights
Open
AccessURL
Name
EVE data access page
URL
https://lasp.colorado.edu/eve/data_access/eve_data/products/level2/
Style
File
Format
FITS
Encoding
GZIP
InstrumentIDs
spase://SMWG/Instrument/SDO/EVE
MeasurementType
Irradiance
MeasurementType
Spectrum
TemporalDescription
TimeSpan
StartDate
2010-04-30 00:00:00
StopDate
2018-04-18 23:59:59
Cadence
PT10S
ObservedRegion
Sun