Well, since I brought the mystery up, I thought I'd try and solve it.
The numbers on the footage give the aircraft's exact location.
From the numbers for longtitude and latitude and how they change over time, I worked out that the aircraft is just a little below Escarcega and is flying eastward at 9 degrees to the left of due East.
Now, there are two other important numbers on the footage:
One number (actually just a pointer) is just left of zero and has a range -180 to 0 to +180. And it is pointing at around -140 or so.
The other number is azimuth which is around -140 degrees or so.
Which could mean the camera is pointing left and behind, pointing to the Northwest.
Ciudad del Carmen is to the Northwest...
At about the right distance...
And it has an
airport...
As you can see from that little map above.
The airport is has a single runway and operates from 1 PM to 1 AM. I don't think it's very busy place.
http://www.azworldairports.com/airports/p2090cme.htm
Why would it have a lot of strong heat signatures which appear randomly, stay on for a matter of minutes and disappear?
Might be this...
Maybe it was balloons taking off at Ciudad del Carmen airport?
Now I have no idea if balloons take off from there, though.
Well, that's my theory anyway.
But if that number and the pointer mean the camera is pointing Northwest, then it is pointing at a town big enough to have a small airport.
You could have all sorts of heat sources from a big town if something was going on there.