2.7.1 https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions spase://NASA/NumericalData/TIMED/SEE/L2_XPS NASA NumericalData TIMED SEE Level2 XPS Solar Irradiance Data 2025-12-04T13:32:07Z 2020-07-07T21:15:38Z Only known prior ReleaseDate of the metadata 2025-11-14T16:01:52Z Added PublicationInfo. 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 2025-12-04T13:32:07Z Added MetadataRightsList. Updated to 2.7.1. ZCB 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 2 data is time averaged over the entire day, after being 1-AU corrected and removing flares. The 1-AU correction is provided. NASA, Thomas N. Woods Woods, Thomas N. 2025-11-14T16:01:52Z Johns Hopkins University Applied Physics Laboratory spase://SMWG/Person/Thomas.N.Woods PrincipalInvestigator L2 XPS Data Information http://lasp.colorado.edu/home/see/data/daily-averages/level-2-xps/ spase://VITMO/NumericalData/TIMED/SEE/L2_XPS spase://VSPO/NumericalData/TIMED/SEE/L2_XPS spase://SMWG/Repository/TIMED/SEE_POC Online Open SEE Data Products web page http://lasp.colorado.edu/home/see/data/ This web page allows the request of data files for this product. To request data: for the XPS 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. NetCDF None NASA, Thomas N. Woods Calibrated SEE Level 2 XPS Solar Irradiance data Level 2 10 spase://SMWG/Instrument/TIMED/SEE Irradiance 2002-01-22T00:00:00.000 P2D Sun TIMED SEE XPS Sun Date of observation DATE Date of observation YYYY-DOY 9 Dimensions: [Number_of_bandpass_wavelength_ranges] - where Number_of_bandpass_wavelength_ranges is the number of bandpass wavelength ranges. Other Channel index CHANNEL Channel index of the 12 XUV Photometers (1-12) NONE 9 Dimensions: [Number_of_bandpass_wavelength_ranges] - where Number_of_bandpass_wavelength_ranges is the number of bandpass wavelength ranges. Other Bandpass wavelength range WAVE(structure_elements, dim1_WAVE) Bandpass wavelength range nm 9 2 Dimensions: [Number_of_bandpass_wavelength_ranges, Bandpass_wavelength_range_limits] - where Number_of_bandpass_wavelength_ranges is the number of bandpass wavelength ranges, and Bandpass_wavelength_range_limits is the pair of values specifying the lower and upper wavelength limits. Other XPS median solar irradiance FLUX_MEDIAN Solar irradiance - median for the day W / m^2 9 Dimensions: [Number_of_bandpass_wavelength_ranges] - where Number_of_bandpass_wavelength_ranges is the number of bandpass wavelength ranges. Electromagnetic Wavelength 0.1 122.0 nm Channel 1: Ti/C-14 coating 0.1 7 Channel 2: Ti/C-10 coating 0.1 7 Channel 3: Al/Sc/C-24 coating 17 23 Channel 5: Ti/Pd-17 coating 0.1 10 Channel 6: Ti/Zr/Au-04 coating 0.1 10 Channel 7: Al/Nb/C-03 coating 17 21 Channel 9: Al/Mn-06 coating 0.1 7 Channel 10: Cr/Al-07 coating 0.1 7.0 Channel 11: Lyman-alpha 121 122 Difference of median and weighted average solar irradiance DIFF_MA Difference of median and weighted average solar irradiance over the day W / m^2 9 Dimensions: [Number_of_bandpass_wavelength_ranges] - where Number_of_bandpass_wavelength_ranges is the number of bandpass wavelength ranges. Other Accuracy of solar irradiance ERR_TOT Accuracy of solar irradiance averaged over the day Fractional 9 Dimensions: [Number_of_bandpass_wavelength_ranges] - where Number_of_bandpass_wavelength_ranges is the number of bandpass wavelength ranges. Other Measurement precision ERR_MEAS Measurement precision averaged over the day Fractional 9 Dimensions: [Number_of_bandpass_wavelength_ranges] - where Number_of_bandpass_wavelength_ranges is the number of bandpass wavelength ranges. Other Standard deviation of median for good measurements STDEV_MEAS Standard deviation of median for good measurements Fractional 9 Dimensions: [Number_of_bandpass_wavelength_ranges] - where Number_of_bandpass_wavelength_ranges is the number of bandpass wavelength ranges. Other AU correction factor COR_1AU AU correction factor for date 1 / (AU^2) 9 Dimensions: [Number_of_bandpass_wavelength_ranges] - where Number_of_bandpass_wavelength_ranges is the number of bandpass wavelength ranges. Other Median of Total-Dark-Visible currents CURRENT Median of Total-Dark-Visible currents from level 1 with FOV and 1-AU corrections applied nanoAmps 9 Dimensions: [Number_of_bandpass_wavelength_ranges] - where Number_of_bandpass_wavelength_ranges is the number of bandpass wavelength ranges. Other Number of measurements used NUMPT Number of measurements used in daily average NONE 9 Dimensions: [Number_of_bandpass_wavelength_ranges] - where Number_of_bandpass_wavelength_ranges is the number of bandpass wavelength ranges. Other Instrument degradation correction factor COR_DEGRADE Instrument degradation correction factor Fractional 9 Dimensions: [Number_of_bandpass_wavelength_ranges] - where Number_of_bandpass_wavelength_ranges is the number of bandpass wavelength ranges. Other Degradation function linear extrapolation/interpolation flag DEGRADE_MODEL Long value = 1 if degradation function is linearly extrapolated, 0 if linearly interpolated None 9 Dimensions: [Number_of_bandpass_wavelength_ranges] - where Number_of_bandpass_wavelength_ranges is the number of bandpass wavelength ranges. Other Atmospheric correction factors average COR_ATMOS.AVG Average of atmospheric correction factors Fractional 9 Dimensions: [Number_of_bandpass_wavelength_ranges] - where Number_of_bandpass_wavelength_ranges is the number of bandpass wavelength ranges. Other Atmospheric correction factors minimum COR_ATMOS.MIN Minimum of atmospheric correction factors Fractional 9 Dimensions: [Number_of_bandpass_wavelength_ranges] - where Number_of_bandpass_wavelength_ranges is the number of bandpass wavelength ranges. Other Atmospheric correction factors maximum COR_ATMOS.MAX Maximum of atmospheric correction factors Fractional 9 Dimensions: [Number_of_bandpass_wavelength_ranges] - where Number_of_bandpass_wavelength_ranges is the number of bandpass wavelength ranges. Other