spaceflightnow.com
1552 GMT (11:52 a.m. EDT)
T+plus 38 minutes, 30 seconds. The maneuvering engines have ignited for the two-minute orbit raising burn.
spaceflightnow.com
1555 GMT (11:55 a.m. EDT)
T+plus 40 minutes, 30 seconds. Atlantis has completed the OMS burn.