Glossary

Contamination (related to the XRT)

Contamination refers to the accumulation of contaminating material on the XRT CCD and focal plane filters (FPFs), which results in a decrease in sensitivity. Refer to Section 2.5.3 Contamination in the SolarSoft XRT Analysis Guide in the SolarSoft XRT Analysis Guide for more information about the XRT contamination.

DN

Data number (DN) per unit.

Solar-Emission-Spectra

Solar emission spectra are a collection of plasma emission spectra corresponding to different temperatures. They provide information about the emitted radiation at various temperatures.

Temperature response

Temperature response refers to the instrument’s temperature response function for a specific filter channel. Units measured in DN cm⁵ s⁻¹ pix^-1.