Hovering at a distance. flashing multi lights; observed in binoculars. then moved upward as it grew larger heading gradually westward. stopped in the air. changed light pattern and proceeded to fly se as it lost altitude. speed picked up. proceeded over my house and continued se till out of sight. made a hushed jet sound (much diminished from a jet plane at that altitued).
as it went over my it had two whitish lights on its forward edges. a center red light. each white light had an additional strobe.
the shape was triangular. no tail. no other lights. very dark color that was somewhat illuminated by reflected ground light.