JASON-2 IN-FLIGHT EXPERIENCE

The SED16 star tracker has been operating for more than two years onboard JASON-2 satellite. The proton rich radiation environment experienced on JASON-2 orbit has a noticeable impact on CCD performance. Dark current non-uniformity and charge transfer inefficiency degradation have been recorded and compared to prediction model based on ground testing. Although significant, the degradations of performance were consistent with expectations.