Metalic sphere moving at approximately 3000ft elevation

Metalic sphere moving from east to west just south of my home. No noise, no lights. Flying low level at about 3000ft elevation. You could see lines on the side of the sphere (structural ?). Moving fast than normal aircraft. Encounter lasted about a minute before it went out of sight. Size was roughly 3x's the size of our local medical helo, who routinely flies a similar path. It could be a bit bigger. I have video of the encounter. The video is not great but look left of the top of tree. This is the latter part of the encounter. When I first saw it...it was much closer and it took me a few second to get video going and track in on it.