It was debug Tandem day, but it went really well. The motor RPM were down. We suspected the hall effect sensors but it turned out to be software. We found the problem just before we started unsoldering sensors.
We also mounted down the main controller and tracking system and chased down a timing problem in the motor controller subsystem. We had taken out the computer in the sensor controller to use it on the Samsung mission. We reinstalled it and it’s all fine except the compass calibration data in the e-prom is wiped. Tandem now thinks North is somewhere toward Hawaii…. Oh well, another thing on the todo list.