SDO/EVE Level 2B: Solar Extreme Ultraviolet Irradiance Measurements

Version 8 data from the NASA Solar Dynamics Observatory's Extreme Ultraviolet Variability Experiment (EVE). The data, processed by the Laboratory for Atmospheric and Space Physics, includes new line irradiance headers and updated long-term degradation corrections for instrument channels. This release adds new emission lines to the level 2B lines data product.

Use Cases

• Modeling solar spectral irradiance based on reported line irradiance from MEGS-A and MEGS-B channels
• Studying long-term instrument degradation trends based on the updated corrections for MEGS-B and ESP
• Comparing overlapping spectral lines based on the new header-data units that allow cross-channel comparison
• Analyzing solar activity and variability using the added new emission lines in the data product

Strengths

• Data originates from NASA's Solar Dynamics Observatory, a flagship space mission
• Includes updated long-term degradation corrections for key instrument channels
• Version 8 introduces new header-data units for improved line irradiance comparison

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data files are in BIN, PDF, and HTML formats, which may require specialized tools for analysis

Provenance

Source

National Aeronautics and Space Administration (NASA), Solar Dynamics Observatory (SDO)

Collection Method

Collected by the Extreme Ultraviolet Variability Experiment (EVE) instrument and processed by the Laboratory for Atmospheric and Space Physics (LASP) Science Processing and Operations Center (SPOC)

Time Range

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Freshness

Last updated 2026-03-13 04:58:45.404857

Geography

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