http://www.cenapred.unam.mx/UIVR.html
middle of the pic, just to the right

http://www.vialidad.telmex.net/popo/
the Altzo cam shows something above and to the left.
the Tlam cam shows something half way up on the far right.

The first pic is no doubt something in our atmosphere, as it is clearly in front of the high level cirrus clouds. It could be any number of aircraft.

On the TLamacas cam, I was lucky enough to see it move around, or should I say "float" around. It appears to be either a blimp of some kind, of a large balloon. A large weather balloon makes sense over top a Volcano. They are probably just gathering data.

__________________
"There is no greater illusion than fear. Whoever can see through all fear will always be safe. " --Lao-Tsu

Bug poop. :wink:

__________________
"If a tree is cut down in the rainforest, and is used to make paper to print a book, and the book is really bad, and there's nobody that will read it, do you still hear a sucking sound?"
Charlie in Dayton, A.AsC.

It looked very similar to this.

__________________
"There is no greater illusion than fear. Whoever can see through all fear will always be safe. " --Lao-Tsu