ACES consisted of two Black Brant rockets, launched from Poker Flat on 29 January. The rockets carried an Auroral research payload for the University of Iowa. ACES-I, using a Black Brant IX, was launched at 09:49 GMT, and ACES-II, which used a Black Brant VB, followed 90 seconds later.
Read more about this topic: Suborbital Spaceflight In 2009, January