EIT Offset


The background of the EIT images consists of the sum of the dark current, the read out noise and the offset introduced by the analog to digital converter (ADC). The background is regularly measured by taking the median of zero second full resolution images. These data (crosses) are plotted as a function of time in the above figure. The red line corresponds to a Fourier series representation with 36 components. This parametrisation is returned by the function. This plot is updated every few months.


Web curator: Frédéric Auchère
Responsible NASA official: Joseph B. Gurman, Facility Scientist, Solar Data Analysis Center
+1 301 286-4767
NASA Goddard Space Flight Center
Solar Physics Branch / Code 682

Last revised: Friday, October 30, 2015 11:56 AM - F. Auchère