The fireball was a very bright green. Comparable to the color of a green light at an intersection. I was out on a call at this location which is set slightly on a hill with little or minimal light pollution. My partner also observed fireball. The fireball appeared to almost fall straight from the sky at a slight angle to my left as I was facing it. The event lasted for approximately 1.5 to 2 seconds. There was no tail. The sky was completely clear. Also about a minute later 3 air Force cargo planes flu by one behind the other. I'm fairly certain they would have observed it as well.