Here's something...not the definitive closure I'm seeking...but better than nothing...
The Russian International News Agency has the story...
Smoking Gun?
"In February 2012, it transpired that one of two processors in a pair of TsVM-22 computers in the probe's flight control system had failed and had to be deactivated during preparations for launch. To make matters worse, the second remaining channel in this computer started conflicting with its counterparts in the second remaining TsVM-22 machine. As a result, the decision was made to shut off one TSVM-22 computer entirely, even though it remained physically onboard. Therefore, Phobos-Grunt would have to fly with only a single operational computer, leaving no redundancy in the flight control system."
More from Anatoly Zak.
If there's more in the coming days, I'll put up another Phobos/Grunt Update...
Stay tuned!
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