Fast flying object in Santa Barbara

It was July 4th, and not yet dark.  I was in the tallest building in Santa Barbara, where the radio station was.  I was in the control booth.  I was looking out towards the ocean.  From where I was, you could see the bay and on either side were hills that come up.  Often times you see private plans flying or an occasional airliner descending to the airport further north.  What I saw this day was a very fast moving object that covered the distance between the two hill rises (on either sides of the bay) faster than any plane, or commercial jet could.  It was also lower in the horizon than planes flying in the vicinity.
 I asked the DJ, did you see that?  They had not.  I was then transfixed at the window.  I wanted to see it again.  Lo and behold, it came back the opposite direction about five minutes later.
 That's it.