The IRT exhibited a bias of the analog voltage output that caused problems with the
signals from the other SKYRAD radiometers. The bias was due to corrosion between the power and
signal connections in the IRT cable. The IRT was disconnected on 10/18/2006 at 01:20 and
replaced on 11/6/2006 at 23:00 but it too appeared to have grounding problems due to
internal corrosion and was disconnected on 11/11/2006 at 11:42 and then intermittently
reconnected for testing. A second spare was installed on 12/4/2006 which did not cause problems
with the signals from the other instruments. |