Retirement of CCD Module 4 confirmed - Kepler & K2
http://keplerscience.arc.nasa.gov/retirement-of-ccd-module-4-confirmed.html
As reported in detail in the latest Kepler Mission Manager Update, additional spacecraft telemetry appears to confirm
the loss of CCD Module 4 during K2's current Campaign 10.
Module 4 is the third of the 21 science modules to have failed in-flight. Such hardware failures were foreseen in the
initial mission planning, and the system design is robust and compartmentalized to minimize the impacts. After more
than seven years in the harsh conditions of space, 85 percent of Kepler's original detectors are still operating.
Campaign 10 science observations were interrupted between July 20 and August 3 as a result of the anomaly. Observations
have since returned to normal and no further interruptions are expected.