Total knee-jerk amusing tin-foil-hat theory: Somebody in the US military wanted to test a satellite-killing system. Maybe the X37B left an orbiting payload containing a satellite-to-satellite laser...

Seed some stealthy units ahead of time, let then linger until you need to start taking out enemy surveillance/communications.

China has satellite-killing technology already deployed. This is more likely to have been a result of that being tested than anything else ..

military weather satellite... weather... exploding.... yea sure... What did they meashure the weather with??? Warheads?

Edit: I know perfectly well that sattelites carry small amaounts of fuel, but this is just too... hmmm