>>3139870 pb
Someone is up flying CAP and needs some gas. Unlikely you'll see them broadcasting an ADSB though.
Interesting. Keep watch just in case.
Could also be drill weekend for ANG/ AFRES units. Close to Fiscal Year end and they need to finish out annual flying hours. Both would be from same unit.
Still interesting. Keep watch.
Such is the life of a KC-135 aircrew. Fly to these coordinates. Orbit for long periods of time in a racetrack pattern. Other air refueling capable aircraft meet up and tank. Go off and do their mission. When you're done, fly home.