Silent, unblinking white light moving slowly ENE at a time when no air or satellite traffic in area.

Took brief walk before sunrise and stopped to look at clear, cloudless sky. Saw several bright stars and possibly planets. Then noted one, about as bright as Venus, was actually moving toward the ENE at or near the speed of a high altitude jetliner. The single white light never blinked, and after it passed slowly overhead, I still heard no sound.
Shortly after it first appeared to be moving, it may have veered slightly off course twice, and there may have been one or two tiny white lights moving near it, but not certain about either of those observations because my vision is not flawless.
Checked my phone for the time, but preferred to watch the moving light, rather than attempt a photo.
Later checked Flightradar24 website, which showed no flights near Cape Cod at that time, and the In the Sky satellite tracking website, which showed only one satellite heading NE well off the coast of Cape Cod near that time.