Huge ball of light being escorted by 2 helicopters

I ran outside of my house when I heard a loud noise like a helicopter directly above me house. Once outside I saw a big ball of white light heading from the hills towards my house (I was in the backyard at the time). The ball of light was very large and incredibly bright and had no signs of blinking lights that an aircraft should have. Next to it were to large helicopters (both helicopters had blinking lights that a normal aircraft would have) the object and the helicopters flew directly over my house and continued towards the Santa cruz mountains. The light had no discernable shape. It was just a ball of light. I didn't hear any other noise coming from the ball of light all I could hear were the helicopters.
I'm just trying to figure out what it was I saw last night. Any info would help.