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Skylab 3

From Academic Kids

Skylab 3
Mission Insignia
Missing image
Skylab2-Patch.jpg
Skylab 3 insignia

Mission Statistics
Mission Name:Skylab III
Call Sign:Skylab 3
Number of
Crew:
3
Launch:July 28, 1973
11:10:50.5 UTC
Kennedy Space Center
LC 39B
Apogee:441 km
Perigee:423 km
Period:93.2 min
Inclination:50 deg
Station
visit length:
58 d 15 h 39 min 42 s
Station
EVA length:
13 h 44 min
Landing:September 25, 1973
22:19:51 UTC
Template:Coor dm
Duration:59 d 11 h 9 min 34 s
Number of
Orbits:
858
Distance
Traveled:
~24,500,000 mi
(~39,400,000 km)
Mass:CSM 20,121 kg
Crew Picture
Skylab 3 crew portrait (L-R: Garriott, Lousma and Bean)
Skylab 3 crew portrait
(L-R: Garriott, Lousma and Bean)
Skylab 3 Crew

Skylab 3 or SL-3 was the second manned mission to Skylab. The Skylab 3 mission started July 28, 1973, with the launch of three astronauts on the Saturn IB rocket, and lasted 59 days, 11 hours and 9 minutes. A total of 1,084.7 astronaut-utilization hours were tallied by Skylab 3 astronauts performing scientific experiments in the areas of medical activities, solar observations, Earth resources and other experiments.

Contents

Crew

Backup Crew

Support Crew

Mission Parameters

  • Mass: about 20,121 kg
  • Maximum Altitude: 440 km
  • Distance: 24.5 million miles (39.4 million km)
  • Launch Vehicle: Saturn IB

Docking

  • Docked: July 28, 1973 - 19:37:00 UTC
  • Undocked: September 25, 1973 - 11:16:42 UTC
  • Time Docked: 58 days, 15 hours, 39 minutes, 42 seconds

Space walks

  • Garriott and Lousma - EVA 1
  • EVA 1 Start: August 6, 1973, 17:30 UTC
  • EVA 1 End: August 7, 00:01 UTC
  • Duration: 6 hours, 31 minutes
  • Garriott and Lousma - EVA 2
  • EVA 2 Start: August 24, 1973, 16:24 UTC
  • EVA 2 End: August 24, 20:55 UTC
  • Duration: 4 hours, 31 minutes
  • Bean and Garriott - EVA 3
  • EVA 3 Start: September 22, 1973, 11:18 UTC
  • EVA 3 End: September 22, 13:59 UTC
  • Duration: 2 hours, 41 minutes

See also

Mission Highlights

Skylab 3 continued a comprehensive medical research program that extended the data on human physiological adaptation and readaptation to space flight collected on the previous Skylab 2 mission. In addition, Skylab 3 extended the astronauts stay in space from approximately one month to two months. Therefore, the effects of flight duration on physiological adaptation and readaptation could be examined.

A set of core medical investigations were performed on all three Skylab manned missions. These core investigations were the same basic investigations that were performed on Skylab 2, except that the Skylab 3 inflight tests were supplemented with extra tests based on what researchers learned from the Skylab 2 science results. For example, only leg volume measurements, preflight and postflight stereophotogrammetry, and in-flight maximum calf girth measurements were originally scheduled for all three Skylab missions.

In-flight photographs from Skylab 2 revealed the "puffy face syndrome" which prompted the addition of in-flight torso and limb girth measurements to gather more data on the apparent headward fluid shift on Skylab 3. Other additional tests included arterial blood flow measurements by an occlusive cuff placed around the leg, facial photographs taken before flight and during flight to study the "puffy face syndrome", venous compliance, hemoglobin, urine specific gravity, and urine mass measurements. These inflight tests gave additional information about fluid distribution and fluid balance to get a better understanding of the fluid shift phenomena.

The Skylab 3 biological experiments studied the effects of microgravity on mice, fruit flies, single cells and cell culture media. Human lung cells were flown to examine the biochemical characteristics of cell cultures in the microgravity environment. The two animal experiments were entitled Chronobiology of Pocket Mice and Circadian Rhythm in Vinegar Gnats. Both experiments were unsuccessful due to a power failure 30 minutes after launch.

High school students from across the United States participated in the Skylab missions as the primary investigators of experiments that studied astronomy, physics, and fundamental biology. The student experiments performed on Skylab 3 included the study of libration clouds, x-rays from Jupiter, in-vitro immunology, spider web formation, cytoplasmic streaming, mass measurement, and neutron analysis.

The crew's health was assessed on Skylab by collecting data on dental health, environmental and crew microbiology, radiation, and toxicological aspects of the Skylab orbital workshop. Other assessments were made of astronaut maneuvering equipment and of the habitability of the crew quarters, and crew activities/maintenance experiments were examined on Skylab 2 through 4 to better understand the living and working aspects of life in space.

Reference

  1. REDIRECT Template:PD-USGov-NASA

Template:Skylabde:Skylab 3

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