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LISIRD supplied Composite Lyman Alpha

Published by LISIRD | National Aeronautics and Space Administration | Catalog Last Checked: September 23, 2026 at 12:49 AM | Dataset Last Updated: September 21, 2026
This data product contains daily irradiance levels (photons/s/cm**2) of solar Lyman alpha (121.5 nm) radiation from multiple spacecraft and modelling sources, including AE-E/ESUM, SME/SUVM, UARS/SOLSTICE, TIMED/SEE and SORCE/SOLSTICE spacecraft and F10.7 and Mg models. Data are available from 1947 to near-current, both graphically and, in txt/csv format, digitally, from the LISIRD interface at U.Colorado/LASP.

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