MEEECOOOOO! Good job, Endeavour!
Nominal MECO, OMS-1 is not required.
OMS-1 refers to an OMS burn done at MECO+3 minutes. The engines are always referred to as "left" and "right".funny when ever i launch in orbiter i always need both OMS engines
OMS is the pods and the engines. OMS-1 is a trajectory correction manuever designation.really i thought it was those 2 smaller engines next to the main engines
They are, OMS-1 refers to the maneuver sometimes required to trim the orbit the SSMEs put the Orbiter into. OMS-2 refers to a maneuver done at Apogee to raise the orbit from Suborbital to Orbital. They are called OMS-x because they use the OMS engines exclusively (ok, some RCS probably too).