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TIMED SEE Level2A XPS Solar Irradiance Data

Published by SEE_POC | National Aeronautics and Space Administration | Catalog Last Checked: September 09, 2026 at 12:11 AM | Dataset Last Updated: September 08, 2026
The 12 X-Ray Photometers (XP) aboard SEE perform full-disk irradiance measurements of the Sun for about 3 minutes every orbit (97 minutes) which usually gives 14-15 measurements per day. 8 of the XPs produce XUV signals (more info on XP coatings) and one other XP provides a hydrogen Lyman-alpha measurement (121.5 nm). The XPS Level 2A data is time averaged over each measurement, after being 1-AU corrected and removing flares. The 1-AU correction is provided.

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