My guess it is headed to kings bay ga. My second guess it is exploring our nuke bases with probably some kind of nuke detectors. If it is so amicable a devise why did blinken cancel a meeting in chicom land. Almost like the U2 incident.
The greatest probability is that the balloon is loose and drifting aimlessly because it is not now and never was under directional control
Further, the balloon ascended until it was balanced. The altitude is maximized when the lift capability of the contained gas, hydrogen or helium, equals the weight.