let s listen in. all three are still in good shape as are all of the other sims aboard the orbiter. a team of flight controllers watches over all the systems. 4:20 into the flight. endeavour s traveling 5500 miles per hour. altitude 63 miles traveling downrange, about 335 feet in altitude. environmental and control systems officer here reporting a good flash evaporator system reporting cooling to equipment aboard the vehicle. traveling into space on the forward flight deck is mark kelly and greg johnson. between and behind them, flight engineer to ato. rog roger. endeavour can reach orbit on two engines, however, all three are still performing as planned. foistal heading to the international space station for the first time. making the first voyage on the space shuttle after flying to the international space station after soyous spacecraft previously. endeavour, single engine up three. that call indicates that endeavour could reach a transatlantic abort si