STS-43 TCDT

Footage is seen of the simulated ignition of Atlantis' main engines up until about 30 seconds before ignition. The crew's activities of the days before are seen, including emerging from two T-38 aircraft cockpits, suiting up, and leaving for the pad. The Tracking and Data Relay Satellite (TDRS) is seen close-up in the test cell in the Vertical Processing Facility.