STS-34 Galileo spacecraft / IUS deployment sequence in OV-104's payload bay

During STS-34 mission, the Galileo spacecraft mounted atop the inertial upper stage (IUS) is tilted to a 58-degree deployment position by the airborne support equipment (ASE) aft frame tilt actuator (AFTA) table in Atlantis', Orbiter Vehicle (OV) 104's, payload bay (PLB). Visible in the foreground is the ASE forward cradle and the umbilical boom which has fallen away from the IUS. OV-104's orbital maneuvering system (OMS) pods and the Earth's limb appear in the background.