HOUSTON: Houston is now controlling. Roll maneuver is under way. Atlantis is heading into a head-down position, on course for a 51.6-degree,
137-by-36 statute-mile orbit. Atlantis already two miles downrange from the Kennedy Space Center at an altitude of 2.8 statute miles.
Engines now at 72 percent, beginning to throttle back up as the vehicle passes through the area
of maximum dynamic pressure. Atlantis, Houston, go at throttle up. ATLANTIS: Copy, go at throttle up.
HOUSTON: All three liquid-fueled engines are back at full throttle. One minute, 20 seconds into the flight. At liftoff, the fully fueled shuttle, boosters
and external tank weighed about four-and-a-half million pounds. It now has burned half of that weight in propellant.
Solid, solid rocket boosters are burning 11,000 pounds of propellant every second. Coming up on one minute, 45 seconds. Standing by for first-stage
separation of the solid rocket boosters. Atlantis is at an altitude of 129,000 feet, 24 miles in altitude, 25 miles downrange. All three engines
are still performing as expected.
SRB separation and staging confirmed. All three electrically producing fuel cells are operating as expected, as are the hydraulic systems, the auxiliary
power units.
And main engine cutoff has been confirmed. ET separation confirmed. Atlantis now off of the external tank. Commander Brent Jett will fire the,
pulse the engines on Atlantis to position it for photography of the tank as it falls away.