Unusual Atlas Air activity at KPSM today 2/26

Atlas Air frequents PSM on a near daily basis as a fuel stop for their military charters overseas and is normally nothing to remark about. Today was weird though… I heard a bunch of loud and distinctive rumbling sounds coming from PSM this morning and wondered “what the heck is going on up there?”. It sounded like 5 or 6 take-offs by large jets in a span of an hour or two… and it kind of caught my attention.

After looking at the FlightAware page for Pease today I see the following:

Atlas Air 3572 (747)-
http://flightaware.com/live/flight/GTI3572/history/20130226/1453Z/KPSM/KPSM

Atlas Air 2732 (767)-
flightaware.com/live/flight/GTI2 … /KNGU/KPSM (originally Norfolk to Frankfurt, but diverted to KPSM?)
flightaware.com/live/flight/GTI2 … /KPSM/KPSM
flightaware.com/live/flight/GTI2 … /KPSM/EDFH

Am I interpreting the data wrong or did Atlas have a really strange day here in New Hampshire?
Here is a screen cap of the activity in question: