Silent white oval hovering above house

My daughter with autism told my husband and myself that there was an astronaut in the sky. Our younger daughter then looked up and seen it too and told us to come look. So we looked for ourselves. There was a white oval shape hovering above our backyard. It started to move slowly, not increasing or decreasing elevation. Just slowly moving west. I started filming, the video just shows a dot but with the naked it was very clearly oval. It did not look as high as a plane would be and had no wings or lights. It was completely and eerily silent. In the video you can see it suddenly changes direction and then disappears. I’m only reporting because we were certain it was not a drone as there was no sound or propellers. It was definitely not a plane or helicopter. It was close enough for us to make that distinction. We didn’t think it was a balloon because it didn’t appear to be rising and was still before it started moving.