Caught this over airport in Houston, Texas

I work at an airport in Houston. I recorded the sky, on Feb. 3rd at 2:00 P.M, to see if I could catch anything while I was at work. No, I dont just stand around and record the sky. I placed the camera in a spot by my work station and just recorded the sky for a couple minutes. My job is a line tech so I’m always outside. When I went on break I reviewed the footage and captured this weird thing in the sky. I thought it was a lense flare initially but I realized it has a shadow in the sky that you can track before and after it appears. Deeper analysis would help. Never caught anything like it again. I tried recording the sky in the same location around the same time the next day and didnt catch anything. Object in top left corner.