UFO spotted near a rocket over Cape Canaveral

On February 11, 2015, a person watched a rocket launch in Cape Canaveral, Florida. He took several photos without seeing nothing unusual. But, later, he noticed a strange UFO on these photos. What is it?

Witness report:

I was watching a rocket launch from my front porch on 2/11/15. The rocket launched from Cape Canaveral, FL. I took several photos of the rocket as it gained altitude. I saw nothing unusual while taking photos.
It wasn't until I loaded the photos on my computer and looked at them that I noticed an object on one photo only in the same shot as the rocket.
It wasn't there on the photo before and it wasn't there on the photo after. There were only a few seconds between photos.
I send the three photos to Gary Mobley, the Florida Mufon State Section Director to view. He stated that if you blow the object up, it appears to be a cylinder.
He told me to report it.