STS -44 (English Space Transportation System) is a mission name for the U.S. Space Shuttle Atlantis NASA. The launch took place on 24 November 1991. It was the 44th Space Shuttle mission and the tenth flight of the space shuttle Atlantis.


Home team

  • Frederick Gregory ( third space flight), Commander
  • Terence Henricks ( 1 space flight), Pilot
  • Story Musgrave ( fourth space flight), Mission Specialist
  • Mario Runco ( first space flight), Mission Specialist
  • James Voss ( first space flight), Mission Specialist
  • Thomas Hennen ( first space flight ), Payload Specialist, United States Army

Originally David Walker was assigned as commander. In July 1990 he was relieved of this office because of an Aerial Incident of May 1989 and replaced by Gregory.


  • Michael Belt for hens

Mission overview

The launch had been scheduled first for 19 November, but was postponed due to a defective inertial sensor of the drive stage of a Defense Support Program satellites ( DSP). The unit was replaced and tested, then the start scheduled for November 24. He had to be postponed by a further 13 minutes to allow a spacecraft in orbit safe flyby, and to the external liquid oxygen tank to fill up fully after minor repairs were done to it. The takeoff weight was 117,766 kg.

It was a mission for the Department of Defense ( DoD ). The unclassified payload included the Defense Support Program satellite and its Inertial Upper Stage ( IUS ), which was suspended on the first day of flying. Other payloads in the payload bay and on the middle deck were Interim Operational Contamination Monitor ( IOCM ), Terra Scout, Military Man in Space ( M88 -1 ), Air Force Maui Optical System ( AMOS ), Cosmic Radiation Effects and Activation Monitor ( CREAM ), Shuttle Activation monitor (SAM ), Radiation Monitoring Equipment III (RME III), Visual Function Tester -1 ( VFT -1), Ultraviolet Plume instrument ( UVPI ) Bioreactor flow and Particle Trajectory experiment and Extended Duration Orbiter Medical Project.

The landing took place on December 1, 1991 at 14:34:44 PST on runway 5, Edwards Air Force Base, California. The Ausrollweg was 11,191 feet, the coasting time 107 seconds. The landing had been originally scheduled for December 4, but was brought forward on 30 November, after an error in one of the three inertial sensors of the orbiter had been found. During the landing was for testing purposes only minimally slowed down, which explains the long Ausrollweg. The orbiter returned to the Kennedy Space Center on December 8. The landing weight was 87,918 kg.