There are a couple of problems with this theory

1) Recon satellites are not able to monitor a given ship 24/7
They are typically in polar orbits and a given satellite will only overfly
a specified target for a matter of minutes per day

True but a ship can only move so far each day and once you start using
multiple
sats you can get the location of the carrier down well enough for a
maritime recon.
BUFF to get a fix. Then you always have the shadow ships, subs, planes
SOSUS (if in area) ...
Its not like we are talking about Brazil having a potent navy with
(pehaps) few major Air Force
and Navy bases in theatre. We have Taiwan to help out, Japan, S. Korea
etc. and major bases. With
the end of the Cold War we have a large lack of true demand for our
naval assets especially our submarines...the Navy
would gladly track that ship to ensure its budget.

2) The typical antiship missile used by the B-52 is the AGM-84 Harpoon
Since this has a relatively short range you wouldnt want to risk
an unescorted B-52 that close to a carrier.

Easier solution. Two or three F/A-22s with LGB bunker busters into the
flight deck. It would probably be the fastest carrier to sink.

JK


Keith