It started in the Western sky as a single bright light. Then I noticed it was moving zat a high ratre going East just slightly South of my location. It was silent, w/thje single light and leaving no contrail. It was also

clearly at high Sirius passing over lower cumulus clouds. As it passed my location even with the very bright light it appeared circular in shape. I kept looking for someone to confirm what I was seeing. I saw a neighbor walking toward me and showed her the object which had come to a stop and now was reversing itself heading West. She saw it and was as amazed as i was. Clearly not a small object but end to end (radius) as big as a F4 jet but traveling very fast which my neighbor commented on as well!! It then disappeared in the western sky as a single non pulsing light!!