Random Explosion

Sorry for yet another report, but I felt that this picture and information might clarify some things. My craft once again exploded, but I have more exact details on what happened, as I wasn't in map mode. I was in orbit at about 200 km. (Apoapsis was 201 km, it was relatively circular). I had just detached a satelite portion of my spacecraft, and after detaching, I sent my original craft hurtling out into space. I took over control of my satelite, and used the map to destroy the original craft to keep things clean. I went back into the regular camera, and turned off RCS, and made sure throttle was set to 0, just so I could float through space. A few seconds later, my craft did one cartwheel, started glowing red, and exploded, sending me to an altitude of -1,784m. My physics is set to high, and heat damage is on. I was well above the atmosphere when this happened, so it should not have been heat damage that caused this. On launch, my satellite was protected by fairings, so it would not have been damaged. I don't think I caused this, and again, sorry for the multiple reports, but I felt this information could be useful to someone.