Thursday, December 22, 2011

AIA Camera-4 Fault

AIA's Telescope Assembly ATA-1 suffered a misnamed Camera-4 anomaly. It is visible in the Sun Today images as well as in the FITS files. Here is an example from the 335 channel, where the dark area circled and the "scan lines" pointed at are example of a Camera-4 fault. The fault is automatically cleared within a few images but tends to reoccur until the camera is reset. These flaws will be visible is some 335 and 131 images between 12/22 13:15:17 UT and the reset at 19:37:54.