Iím here on Kodiak island, Alaska.
We went river fishing for salmon nearby the Coast Guard base, COMSTA, Communications Station, and I laid on my back in the warm weather watching contrails from departing Anchorage jets flying southwest towards Hawaii or the Philippines.
I noticed the same exact silvery dot maintaining a precise location in the sky while the contrails drifted and the lower clouds scurried over the mountain tops.
I thought a weather balloon would drift, even a short distance in mild weather.
It was almost windless, but I thought it peculiar anyway. It may well have been a weather balloon.
Still, it was in the contrails and out but never moved anywhere across the sky. Too high for a tether too.