The BIORACK facility and its performance during the IML-2 Spacelab mission.

The configuration and performance of the Biorack facility during the Second International Microgravity Laboratory mission (IML-2; 8-23 July 1995) is described in detail. During this Spacelab mission, Biorack flew with two incubators (22 degrees C and 37 degrees C), glovebox, cooler (5 degrees C) and four passive thermal conditioning units (PTCU; 5 degrees C and 10 degrees C) in the stowage. The crew worked more than 40 h to perform 19 Biorack experiments originating from seven European countries. Almost 200 Biorack experiment containers had to be translocated in about 1500 predetermined steps before the Space Shuttle Columbia returned after nearly 14 days: 18 h or 236 orbits in space to Kennedy Space Center, Florida.