EXCUSE ME....if the tank is full....fire it and put it back into orbit!!!!!
The problem is that the satellite is dead -- no computers, no power. It's a very expensive rock in space.
First of all it is the guidance computer that has failed and can not be controlled, thus we can not put it back into orbit.
Second hydrozine is a hypergolic substance, that means it creats it’s own o2 while in a “burning” state. The shuttle carries 50 + gallons of it for it’s on board genteators. It is a really nasty stuff, but very effective as a rocket fuel in a 0 O2 envirment.
Hard to do, considering they lost contact with this satellite shortly after it was inserted into orbit......
Apparently something isn’t quite right or I’m sure they would have thought of that. If it is fireable though, why not just run it out of fuel. Lack of control must be an issue or they would have done that as well.