Data Access
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.
Version:2.2.2
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.
| Role | Person | StartDate | StopDate | Note | |
|---|---|---|---|---|---|
| 1. | PrincipalInvestigator | spase://SMWG/Person/Thomas.N.Woods |
This web page allows the request of data files for this product. To request data: for the XPS_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.
Date of observation
Dimensions: [Number_of_elements] - where Number_of_elements is the number of elements in the file.
Channel index of the 12 XUV Photometers (1-12)
Dimensions: [Number_of_elements] - where Number_of_elements is the number of elements in the file.
Bandpass wavelength range
Dimensions: [Number_of_elements, Number_of_wavelength_intervals] - where Number_of_elements is the number of elements in the file, and Number_of_wavelength_intervals is the number of wavelength intervals.
Solar irradiance - median for the day
Dimensions: [Number_of_elements] - where Number_of_elements is the number of elements in the file.
Accuracy of solar irradiance averaged over the day
Dimensions: [Number_of_elements] - where Number_of_elements is the number of elements in the file.
Measurement precision averaged over the day
Dimensions: [Number_of_elements] - where Number_of_elements is the number of elements in the file.
Standard deviation of median for good measurements
Dimensions: [Number_of_elements] - where Number_of_elements is the number of elements in the file.
AU correction factor for date
Dimensions: [Number_of_elements] - where Number_of_elements is the number of elements in the file.
Median of Total-Dark-Visible currents from level 1 with FOV and 1-AU corrections applied
Dimensions: [Number_of_elements] - where Number_of_elements is the number of elements in the file.
Number of measurements used in daily average
Dimensions: [Number_of_elements] - where Number_of_elements is the number of elements in the file.
0 means XPS measures flux greater than 3-sigma above the GOES XRS long channel correlation, 1 means the XPS is within 3-sigma of the expected value, 2 is indeterminate due to a lack of available GOES long channel correlation data
Dimensions: [Number_of_elements] - where Number_of_elements is the number of elements in the file.
Memory address of command, valid from 1-254
Dimensions: [Number_of_elements] - where Number_of_elements is the number of elements in the file.
UT time in seconds of day for start integration used in observation
Dimensions: [Number_of_elements] - where Number_of_elements is the number of elements in the file.
UT time in seconds of day for the end integration used in observation
Dimensions: [Number_of_elements] - where Number_of_elements is the number of elements in the file.
Ratio of observation flux_median to daily flux_median
Dimensions: [Number_of_elements] - where Number_of_elements is the number of elements in the file.