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/L2A_EGS NASA NumericalData TIMED SEE Level2A EGS Solar Irradiance Data 2025-12-04T13:32:06Z 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 2025-12-04T13:32:06Z Added MetadataRightsList. Updated to 2.7.1. ZCB The EUV Grating Spectrograph (EGS) aboard SEE performs measurements of the Sun for about 3 minutes every orbit (97 minutes) which usually gives 14-15 measurements per day. The Level 2A data is time averaged over each measurement, 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 L2A EGS Data Information http://lasp.colorado.edu/home/see/data/observational-averages/level-2a-egs/ spase://VITMO/NumericalData/TIMED/SEE/L2A_EGS spase://VSPO/NumericalData/TIMED/SEE/L2A_EGS 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 EGS_2A 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 2A EGS Solar Irradiance data Level 2A 10 spase://SMWG/Instrument/TIMED/SEE Irradiance 2002-02-08T00:00:00.000 P2D Sun TIMED SEE EGS Sun Date DATE Date of observations YYYY-DOY 8 Dimensions: [Number_of_observations] - where Number_of_observations is the number of observations in the file. Other Wavelength intervals WAVE Array of wavelength intervals, half-Angstrom centers nm 8 1690 Dimensions: [Number_of_observations, Number_of_wavelength_intervals] - where Number_of_observations is the number of observations in the file, and Number_of_wavelength_intervals is the number of wavelength intervals. Other EGS median solar irradiance FLUX_MEDIAN Array of median solar irradiances for each wavelength interval. This is the spectrum. W / m^2 / nm 8 1690 Dimensions: [Number_of_observations, Number_of_wavelength_intervals] - where Number_of_observations is the number of observations in the file, and Number_of_wavelength_intervals is the number of wavelength intervals. Electromagnetic Wavelength 26.05 194.95 nm Median-averaged differences DIFF_MA Array of differences between the median and weighted averaged solar irradiances for each wavelength interval W / m^2 / nm 8 1690 Dimensions: [Number_of_observations, Number_of_wavelength_intervals] - where Number_of_observations is the number of observations in the file, and Number_of_wavelength_intervals is the number of wavelength intervals. Other Total error ERR_TOT Accuracy of solar irradiance Fractional 8 1690 Dimensions: [Number_of_observations, Number_of_wavelength_intervals] - where Number_of_observations is the number of observations in the file, and Number_of_wavelength_intervals is the number of wavelength intervals. Other Measurement error ERR_MEAS Measurement precision Fractional 8 1690 Dimensions: [Number_of_observations, Number_of_wavelength_intervals] - where Number_of_observations is the number of observations in the file, and Number_of_wavelength_intervals is the number of wavelength intervals. Other Measurement standard deviation STDEV_MEAS Standard deviation of the median Fractional 8 1690 Dimensions: [Number_of_observations, Number_of_wavelength_intervals] - where Number_of_observations is the number of observations in the file, and Number_of_wavelength_intervals is the number of wavelength intervals. Other Number of points NUMPT Array of the Number of points (1-Angstrom-gridded measurements) used in determining the observation average for each wavelength interval NONE 8 1690 Dimensions: [Number_of_observations, Number_of_wavelength_intervals] - where Number_of_observations is the number of observations in the file, and Number_of_wavelength_intervals is the number of wavelength intervals. Other Order sorting correction COR_OS_MED Order Sorting correction applied to flux_median W/m^2/nm 8 1690 Dimensions: [Number_of_observations, Number_of_wavelength_intervals] - where Number_of_observations is the number of observations in the file, and Number_of_wavelength_intervals is the number of wavelength intervals. Other AU correction factor COR_1AU AU correction factor for date 1 / (AU^2) 8 Dimensions: [Number_of_observations] - where Number_of_observations is the number of observations in the file. Other Slit state SLIT 0 is calibration slit, 1 is normal slit none 8 Dimensions: [Number_of_observations] - where Number_of_observations is the number of observations in the file. Other Start times START_TIME Array of observation start times UT seconds of day 8 Dimensions: [Number_of_observations] - where Number_of_observations is the number of observations in the file. Other Stop times STOP_TIME Array of observation stop times UT seconds of day 8 Dimensions: [Number_of_observations] - where Number_of_observations is the number of observations in the file. Other Observation identifiers ODC_ID Array of observation identifiers (1-254), A value of 0 means the observation did not produce data used in routine products. none 8 Dimensions: [Number_of_observations] - where Number_of_observations is the number of observations in the file. Other Flare ratio FLARE Ratio of observation flux_median to daily flux_median none 8 Dimensions: [Number_of_observations] - where Number_of_observations is the number of observations in the file. Other