Apollo+40: CSM/LM Separation Maneuver

100:43:47 (CAPCOM): "Apollo 11, Houston. You are looking good for separation. You are GO for separation, Columbia."

Before bidding his comrades farewell for their descent to the lunar surface, CMP Mike Collins radioed the following:

100:37:31 (CMP): "I think you've got a fine looking flying machine there, Eagle, despite the fact you're upside-down."

100:37:36 (CDR): "Somebody's upside-down."

At 100:39:52, Mike Collins fired Columbia's thrusters to move his craft away from Eagle. Spacecraft checks continue. Mission control is reviewing status, and we're awaiting GO/NO-GO for DOI.