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Manned six crew. First flight of space shuttle Discovery; deployed SBS 4, Leasat 1, Telstar 3C. Payloads: Satellite Business System (SBS)-D commu-nications satellite with Payload Assist Module (PAM)-D deployment, Syncom IV-2 communica-tions satellite with its unique stage deployment, Telstar (American Telephone and Telegraph) 3-C with PAM-D deployment, Office of Aeronautics and Space Technology (OAST)-1 experiments. Deployment and restowing of large solar array. Continuous Flow Electrophoresis (CFES). IMAX camera.
Planned shuttle mission. Cancelled due to payload delays.
Manned seven crew. Payloads: Telesat (Canada communications satellite)-I with Payload Assist Module (PAM)-D deployment, Syncom IV-3 communications satellite deploy-ment with its unique stage (unique stage failed to ignite), Continuous Flow Electrophoresis (CFES), Phase Partitioning Experiment (PPE), student experiments, two getaway specials (GAS) Informal science studies (Toys in Space).
Manned seven crew. Deployed Morelos 2, Aussat 2, Satcom K2, OEX. Payloads: Deploy SATCOM (RCA-Satellite Communi-cations) Ku-2 with Payload Assist Module (PAM)-D II. Deploy Morelos (Mexico communications satellite)-B with PAM-D. Deploy AUSSAT (Australian communications satellite)-2 with PAM-D. EASE/ACCESS (Assembly of Structures� Assembly Concept for Construction of Erectable Space Structures) by extravehicular activity (EVA) astronauts, Continuous Flow Electrophore-sis System (CFES), Diffusive Mixing of Organic Solutions (DMOS), IMAX camera, one getaway special (GAS), Linhof camera and Hasseblad camera.
Planned TDRS/IUS deployment shuttle mission. Cancelled after Challenger disaster.
Planned shuttle mission for deployment of commercial communications satellites. Cancelled after Challenger disaster.