UFO Sighting appeared to be shaped like a rectangular pillow with small antennas on both sides, the object was first noticed well above tree top level and continued to rise while following a North direction. While the UFO Sighting was traveling it appeared to flip end over end, causing the one side of the UFO Sighting to reflect the sun or appearing to flash on one side or give off a bright light. The opposite side seemed to be dull grey or lead color, at altitude it appeared to turn black or subdued in color. It stayed under the clouds and remained visible even for the small size it was. mufon cms# 109160 South San Francisco California 5/29/20 Region has had 10,799 to date.