STS-94

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STS-94
STS094-737-071 Columbia and Spacelab Module LM1.jpg
Spacelab Module LM1 in Columbia's payload bay, serving as the Microgravity Science Laboratory
Names Space Transportation System-94
Mission typeMicrogravity research
Operator NASA
COSPAR ID 1997-032A OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 24849
Mission duration15 days, 16 hours, 45 minutes, 29 seconds
Distance travelled10,000,000 kilometres (6,200,000 mi)
Spacecraft properties
Spacecraft Space Shuttle Columbia
Landing mass117,802 kilograms (259,709 lb)
Payload mass10,169 kilograms (22,419 lb)
Crew
Crew size7
Members
Start of mission
Launch date1 July 1997, 18:02:02 (1997-07-01UTC18:02:02Z) UTC
Launch site Kennedy LC-39A
End of mission
Landing date17 July 1997, 10:47:29 (1997-07-17UTC10:47:30Z) UTC
Landing site Kennedy SLF Runway 33
Orbital parameters
Reference system Geocentric
Regime Low Earth
Perigee altitude 296 kilometres (184 mi)
Apogee altitude 300 kilometres (190 mi)
Inclination 28.45 degrees
Period 90.5 minutes
Sts-94-patch.png STS-83 crew.jpg
Left to right – Front row: Voss, Halsell, Still, Thomas; Back row: Crouch, Linteris, Gernhardt [note 1]
  STS-84 (84)
STS-85 (86) 
 

STS-94 was a mission of the United States Space Shuttle Columbia , launched on 1 July 1997.

Contents

Crew

Position Astronaut
Commander James D. Halsell
Fourth spaceflight
Pilot Susan L. Still
Second and last spaceflight
Mission Specialist 1 Janice E. Voss
Fourth spaceflight
Mission Specialist 2 Michael L. Gernhardt
Third spaceflight
Mission Specialist 3 Donald A. Thomas
Fourth and last spaceflight
Payload Specialist 1 Roger Crouch
Second and last spaceflight
Payload Specialist 2 Greg Linteris
Second and last spaceflight

STS-94 was flown by the same crew that flew STS-83, the only time in the history of human spaceflight that two missions with more than one crewmember had exactly the same crew. [1]

Mission highlights

Launch of STS-94 Sts-94 launch.jpg
Launch of STS-94

This was a reflight of the STS-83 Microgravity Science Laboratory (MSL) mission. MSL was originally launched on 4 April 1997 at 2:20 pm EST and was intended to be on orbit for 15 days, 16 hours. The mission was cut short due to a problem with Fuel Cell #2 and Columbia landed on 8 April 1997 after 3 days 23 hours.

The primary payload on STS-83 was the Microgravity Science Laboratory (MSL). MSL was a collection of microgravity experiments housed inside a European Spacelab Long Module (LM). It built on the cooperative and scientific foundation of the International Microgravity Laboratory missions (IML-1 on STS-42 and IML-2 on STS-65), the United States Microgravity Laboratory missions (USML-1 on STS-50 and USML-2 on STS-73), the Japanese Spacelab mission (Spacelab-J on STS-47), the Spacelab Life and Microgravity Science Mission (LMS on STS-78) and the German Spacelab missions (D-1 on STS-61-A and D-2 on STS-55).

MSL featured 19 materials science investigations in 4 major facilities. These facilities were the Large Isothermal Furnace, the EXpedite the PRocessing of Experiments to the Space Station (EXPRESS) Rack, the Electromagnetic Containerless Processing Facility (TEMPUS) and the Coarsening in Solid-Liquid Mixtures (CSLM) facility, the Droplet Combustion Experiment (DCE) and the Combustion Module-1 Facility. Additional technology experiments were to be performed in the Middeck Glovebox (MGBX) developed by the Marshall Space Flight Center (MSFC) and the High-Packed Digital Television (HI-PAC DTV) system was used to provide multi-channel real-time analog science video.

The Large Isothermal Furnace was developed by the Japanese Space Agency (NASDA) for the STS-47 Spacelab-J mission and was also flown on STS-65 IML-2 mission. It housed the Measurement of Diffusion Coefficient by Shear Cell Method Experiment, the Diffusion of Liquid Metals and Alloys Experiment, the Diffusion in Liquid Led-Tin-Telluride Experiment, the Impurity Diffusion in Ionic Melts Experiment, the Liquid Phase Sintering II Experiment (LIF), and the Diffusion Processes in Molten Semiconductors Experiment (DPIMS).

The Combustion Module-1 (CM-1) facility from the NASA Lewis Research Center housed experiments on Laminar Soot Processes Experiment and the Structure of Flame Balls at Low Lewis-number Experiment (SOFBALL).

The Droplet Combustion Experiment (DCE) is designed to investigate the fundamental combustion aspects of single, isolated droplets under different pressures and ambient oxygen concentrations for a range of droplet sizes varying between 2 millimetres (0.079 in) and 5 millimetres (0.20 in). The DCE apparatus is integrated into a single width MSL Spacelab rack in the cargo bay.

STS-94 crew on orbit Sts-94 crew.jpg
STS-94 crew on orbit

The EXPRESS rack replaces a Spacelab Double rack and special hardware will provide the same structural and resource connections the rack will have on the Space Station. It will house the Physics of Hard Spheres (PHaSE) experiment and the Astro/PGBA Experiment.

The Electromagnetic Containerless Processing Facility (TEMPUS) is used for the Experiments on Nucleation in Different Flow Regimes, Thermophysical Properties of Advanced Materials in the Undercooled Liquid State Experiment, Measurements of the Surface Tension of Liquid and Undercooled Metallic Alloys by Oscillating Drop Technique Experiment, Alloy Undercooling Experiments, the Study of the Morphological Stability of Growing Dendrites by Comparative Dendrite Velocity Measurements on Pure Ni and Dilute Ni–C Alloy in the Earth and Space Laboratory Experiment, the Undercooled Melts of Alloys with Polytetrahedral Short-Range Order Experiment, the Thermal Expansion of Glass Forming Metallic Alloys in the Undercooled State Experiment, the AC Calorimetry and Thermophysical Properties of Bulk Glass-Forming Metallic Liquids experiment and the Measurement of Surface Tension and Viscosity of Undercooled Liquid Metals experiment.

There were also experiments on measuring microgravity. They included the Space Acceleration Measurement System (SAMS), the Microgravity Measurement Assembly (MMA), the Quasi-Steady Acceleration Measurement System and the Orbital Acceleration Research Experiment (OARE).

The Middeck Glovebox (MGBX) facility supported the Bubble and Drop Nonlinear Dynamics (BDND) Experiment, the Study of the Fundamental Operation of a Capillary-driven Heat Transfer (CHT) Device in Microgravity Experiment, the Internal Flows in a Free Drop (IFFD) experiment and the Fiber Supported Droplet Combustion experiment (FSDC-2).

See also

Notes

  1. This image is the crew portrait of the STS-83 mission, which has the same crew composition as this flight

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References

  1. "STS-94". NASA. Retrieved 11 April 2024.

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