I’m watching this since the last “no transponder” day:
https://globe.adsbexchange.com/?icao=ae5dec
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Starting from the sea near Key West (from the carrier?)
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Going to Guantanamo and back.
There is some pink point on MarineTraffic in the same Key West location but I don’t know how to check what’s that:
https://www.marinetraffic.com/en/ais/home/centerx:-82.1/centery:24.5/zoom:10
Click on the pink dot.
Or out of Boca Chica NAS...maybe they turn on their transponders once in the air.