STS-42

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STS-42
STS-42 view of payload bay.jpg
Spacelab Module LM2 in Discovery's payload bay, serving as the International Microgravity Laboratory (IML).
Names Space Transportation System-42
Mission type International Microgravity Laboratory-1
Operator NASA
COSPAR ID 1992-002A OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 21846 OOjs UI icon edit-ltr-progressive.svg
Mission duration8 days, 1 hour, 14 minutes, 44 seconds
Distance travelled4,701,140 km (2,921,150 mi)
Orbits completed129
Spacecraft properties
Spacecraft Space Shuttle Discovery
Launch mass110,400 kg (243,400 lb)
Landing mass98,924 kg (218,090 lb) [1]
Payload mass13,066 kg (28,806 lb)
Crew
Crew size7
Members
Start of mission
Launch dateJanuary 22, 1992, 14:52:33 (January 22, 1992, 14:52:33)  UTC (9:52:33 am  EDT)
Launch site Kennedy, LC-39A
Contractor Rockwell International
End of mission
Landing dateJanuary 30, 1992, 16:07:17 (January 30, 1992, 16:07:17) UTC (8:07:17 am  PDT)
Landing site Edwards, Runway 22
Orbital parameters
Reference system Geocentric orbit
Regime Low Earth orbit
Perigee altitude 291 km (181 mi)
Apogee altitude 307 km (191 mi)
Inclination 57.00°
Period 90.50 minutes
Sts-42-patch.png
STS-42 mission patch
Sts-42.jpg
From left: Oswald, Bondar, Thagard, Grabe, Hilmers, Merbold and Readdy
  STS-44 (44)
STS-45 (46) 

STS-42 was a NASA Space Shuttle Discovery mission with the Spacelab module. Liftoff was originally scheduled for 8:45 EST (13:45 UTC) on January 22, 1992, but the launch was delayed due to weather constraints. Discovery successfully lifted off an hour later at 9:52:33 EST (14:52:33 UTC) on her 14th flight. [1] The main goal of the mission was to study the effects of microgravity on a variety of organisms. The shuttle landed at 8:07:17 PST (16:07:17 UTC) on January 30, 1992, on Runway 22, Edwards Air Force Base, California. [1] STS-42 was the first of two flights in 1992 of Discovery, the second of which occurred during STS-53, which launched on December 2, 1992. The mission was also the last mission of the Space Shuttle Discovery to have a seven-member crew until STS-82, which was launched on February 11, 1997.

Contents

Crew

Position Astronaut
Commander Flag of the United States.svg Ronald J. Grabe Solid blue.svg
Third spaceflight
Pilot Flag of the United States.svg Stephen S. Oswald Solid blue.svg
First spaceflight
Mission Specialist 1 Flag of the United States.svg Norman Thagard Solid blue.svg
Fourth spaceflight
Mission Specialist 2
Flight Engineer
Flag of the United States.svg William F. Readdy Solid red.svg
First spaceflight
Mission Specialist 3 Flag of the United States.svg David C. Hilmers Solid red.svg
Fourth and last spaceflight
Payload Specialist 1 Flag of Canada (Pantone).svg Roberta Bondar, CSA Solid blue.svg
Only spaceflight
Payload Specialist 2 Flag of Germany.svg Ulf Merbold, ESA Solid red.svg
Second spaceflight
Solid blue.svg Member of Blue Team
Solid red.svg Member of Red Team

The astronauts were divided into a red team and a blue team to allow around-the-clock monitoring of experiments. [2]

The crew of STS-42 included the first non-American astronauts on a shuttle mission since the Challenger disaster, Ulf D. Merbold and Roberta Bondar. Merbold was West Germany first astronaut and was making his second flight on the shuttle. Bondar was Canada's first female astronaut.

Mary L. Cleave was originally selected to fly as Mission Specialist 3 for this mission but withdrew herself for personal reasons. She was replaced by Manley Lanier "Sonny" Carter Jr., who died seven months prior to the launch in a plane crash. David Hilmers was then chosen to replace him.

Backup crew

Position Astronaut
Payload Specialist 1 Flag of Canada (Pantone).svg Ken Money, CSA Solid blue.svg
Would have been first spaceflight
Payload Specialist 2 Flag of the United States.svg Roger Crouch Solid red.svg
Would have been first spaceflight
Crouch eventually flew on STS-83 and STS-94, both in 1997.

Crew seat assignments

Seat [3] LaunchLanding Space Shuttle seating plan.svg
Seats 1–4 are on the flight deck.
Seats 5–7 are on the mid-deck.
1Grabe
2Oswald
3ThagardHilmers
4Readdy
5HilmersThagard
6Bondar
7Merbold

Mission highlights

Discovery lifts off at the start of STS-42. STS-42 Launch.jpg
Discovery lifts off at the start of STS-42.

STS-42 was launched on January 22, 1992, 9:52:33 a.m. EST. The launch was delayed by one hour due to weather constraints. The launch weight was 243,396 lb (110,403 kg).

Discovery carried into orbit the International Microgravity Laboratory-1 (IML-1), a pressurized crewed Spacelab module, to explore in depth the complex effects of weightlessness on living organisms and materials processing. The international crew, divided into Red and Blue teams, conducted experiments on the human nervous system's adaptation to low gravity and the effects of microgravity on other life forms such as shrimp eggs, lentil seedlings, fruit fly eggs and bacteria. Low gravity materials processing experiments included crystal growth from a variety of substances such as enzymes, mercury, iodine and a virus. Other payloads included 10 Get Away Special (GAS) canisters, a number of middeck payloads, two Shuttle Student Involvement Program (SSIP) experiments, and an Australian developed ultraviolet telescope Endeavour. [4] Middeck payloads included Gelation of SOLS: Applied Microgravity Research (GOSAMR), Investigations into Polymer Membrane Processing (IPMP) and the Radiation Monitoring Experiment (RME-III).

The mission landed on January 30, 1992, 8:07:17 a.m. PST, Runway 22, Edwards Air Force Base, California, after being extended by a day for continued scientific experimentation. The rollout distance was 9,811 ft (2,990 m). The orbiter returned to Kennedy Space Center on February 16, 1992. The landing weight was 218,016 lb (98,890 kg).

Mission insignia

The four stars in the lower blue field and two stars in the upper blue field of the insignia symbolize the flight's numerical designation in the Space Transportation System's mission sequence. The single gold star above the horizon on the right is in honor of astronaut Manley Lanier "Sonny" Carter Jr., who was killed in the crash of Atlantic Southeast Airlines Flight 2311 in Brunswick, Georgia while on a commercial airplane traveling for NASA. Carter was originally assigned as a mission specialist on STS-42 at the time of his death.

See also

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References

  1. 1 2 3 "STS-42" (PDF). NASA. September 2011. Retrieved February 8, 2022.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  2. Evans, Ben (January 14, 2017). "'Traumatic Decisions': 25 Years Since STS-42 Inaugurated International Space Year (Part 1)". AmericaSpace. Retrieved July 31, 2024.
  3. "STS-42". Spacefacts. Retrieved February 26, 2014.
  4. "Endeavour". sworld.com.au. Retrieved July 22, 2019.