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STS 26



STS-26 was launched from the Kennedy Space Center utilizing the Shuttle vehicle Discovery. The primary objective of the mission was to deploy the TDRS-C, and to conduct seven mid-deck experiments that were part of NASA's microgravity science and applications program.

This mission marked resumption of Shuttle flights after 1986 51-L accident. The primary payload, NASA Tracking and Data Relay Satellite-3 (TDRS-3) attached to an Inertial Upper Stage (IUS), became second TDRS deployed. After deployment, IUS propelled satellite to geosynchronous orbit. Secondary payloads: Physical Vapor Transport of Organic Solids (PVTOS); Protein Crystal Growth (PCG); Infrared Communications Flight Experiment (IRCFE); Aggregation of Red Blood Cells (ARC); Isoelectric Focusing Experiment (IFE); Mesoscale Lightning Experiment (MLE); Phase Partitioning Experiment (PPE); Earth-Limb Radiance Experiment (ELRAD); Automated Directional Solidification Furnace (ADSF); and two Shuttle Student Involvement Program (SSIP) experiments. Orbiter Experiments Autonomous Supporting Instrumentation System-1 (OASIS-1) recorded variety of environmental measurements during various inflight phases of orbiter.

The Ku-band antenna in the payload bay was deployed; however, a dish antenna command and actual telemetry did not correspond. Also, the orbiter cabin Flash Evaporator System iced up, raising crew cabin temperature to mid-80s.

Alternate Names

  • 19547
  • STS26

Facts in Brief

Launch Date: 1988-09-29
Launch Vehicle: Shuttle
Launch Site: Cape Canaveral, United States
Mass: 21082 kg

Funding Agency

  • NASA-Office of Space Flight (United States)


  • Human Crew

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office


Related Information/Data at NSSDCA


Other Sources of STS 26 Information/Data

STS 26 information (NASA KSC)
STS 26 Press Release images (NASA JSC)

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