Encyclopedia Astronautica
STS-41



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STS-41
Rare view of two space shuttles on adjacent KSC Launch Complex (LC) 39 pads
Credit: NASA
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STS-41
Credit: www.spacefacts.de - www.spacefacts.de
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STS-41
Rare view of two space shuttles on adjacent KSC Launch Complex (LC) 39 pads
Credit: NASA
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STS-41
STS-41 Discovery, OV-103, lifts off from KSC Launch Complex (LC) Pad 39
Credit: NASA
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STS-41 external tank (ET) falls back to Earth after release from OV-103
Credit: NASA
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STS-41
STS-41 crewmembers conduct DSO 0472 Intraocular Pressure on OV-103's middeck
Credit: NASA
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STS-41
STS-41 ISAC deployed on remote manipulator system (RMS) lower arm boom
Credit: NASA
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Ulysses spacecraft and its upper stage system are deployed during STS-41
Credit: NASA
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Ulysses spacecraft and its upper stage system are deployed during STS-41
Credit: NASA
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Ulysses spacecraft and its upper stage system are deployed during STS-41
Credit: NASA
Crew: Akers, Cabana, Melnick, Richards, Shepherd. Manned five crew. Deployed Ulysses spacecraft.

Manned five crew. Deployed Ulysses spacecraft. Payloads: Deploy Ulysses, Shuttle Solar Backscatter Ultraviolet, Intelsat Solar Array Coupon, Solid-Surface Combustion Experiment, Investigations Into Polymer Membrane Processing, Chromo-some and Plant Cell Division in Space, Physiological Systems Experiment, Voice Command System, Radiation Monitoring Equipment III, Air Force Maui Optical Site.

Orbits of Earth: 65. Distance traveled: 2,747,866 km. Orbiter Liftoff Mass: 132,911 kg. Orbiter Mass at Landing: 89,803 kg. Payload to Orbit: 22,140 kg. Payload Returned: 4,662 kg. Landed at: Concrete runway 22 at Edwards Air Force Base, Cali. Landing Speed: 359 kph. Touchdown miss distance: 699 m. Landing Rollout: 2,600 m.

NASA Official Mission Narrative

Mission Name: STS-41 (36)
DISCOVERY (11)
Pad 39-B (15)
36th Shuttle mission
11th Flight OV-103

Crew:
Richard N. Richards (2), Commander
Robert D. Cabana (1), Pilot
William M. Shepherd (2), Mission Specialist 1
Bruce E. Melnick (1), Mission Specialist 2
Thomas D. Akers (1), Mission Specialist 3

Milestones:
OPF - May 8, 1990
VAB - Aug. 27, 1990
PAD - Sept. 4, 1990

Payload:
ULYSSES,SSBUV-02,ISAC
Mission Objectives:

Launch:
October 6, 1990, 7:47:15 a.m. EDT. Liftoff occurred 12 minutes after two-and-a-half-hour launch window opened at 7:35 a.m. EDT, Oct.6. Heaviest payload to date. Launch Weight: 259,593 lbs.
Orbit:
Altitude: 160nm
Inclination: 28.45 degrees
Orbits: 66
Duration: 4 days, 2 hours, 10 minutes, 4 seconds.
Distance: 1,707,445 miles

Hardware:
SRB: BI-040
SRM: 360Q013
ET : 39/LWT-32
MLP : 2
SSME-1: SN-2011
SSME-2: SN-2031
SSME-3: SN-2107

Landing:
October 10, 1990, 6:57:18 a.m. PDT, Runway 22, Edwards Air Force Base, Calif. Rollout distance: 8,276 feet. Rollout time: 49 seconds (braking test). Orbiter returned to KSC Oct. 16,1990. Landing Weight: 196,869 lbs.

Mission Highlights:
Primary payload, ESA-built Ulysses spacecraft to explore polar regions of Sun, deployed. Two upper stages, Inertial Upper Stage (IUS) and a mission-specific Payload Assist Module-S (PAM-S), combined together for first time to send Ulysses toward out-of- ecliptic trajectory. Other payloads and experiments: Shuttle Solar Backscatter Ultraviolet (SSBUV) experiment; INTELSAT Solar Array Coupon (ISAC); Chromosome and Plant Cell Division Experiment (CHROMEX); Voice Command System (VCS); Solid Surface Combustion Experiment (SSCE), Investigations into Polymer Membrane Processing (IPMP); Physiological Systems Experiment (PSE); Radiation Monitoring Experiment III (RME III); Shuttle Student involvement Program (SSIP) and Air Force Maui Optical Site (AMOS) experiment.

AKA: Discovery.
First Launch: 1990.10.06.
Last Launch: 1990.10.10.
Duration: 4.09 days.

More... - Chronology...


Associated People
  • Richards Richards, Richard Noel 'Dick' (1946-) American test pilot astronaut. Flew on STS-28, STS-41, STS-50, STS-64. More...
  • Cabana Cabana, Robert Donald 'Bob' (1949-) American test pilot astronaut. Flew on STS-41, STS-53, STS-65, STS-88. US Marine Corps More...
  • Shepherd Shepherd, William McMichael 'Bill' (1949-) American engineer mission specialist astronaut. Flew on STS-27, STS-41, STS-52, ISS EO-1. Shepherd was an ex-Navy SEAL and an expert in underwater demolition. More...
  • Melnick Melnick, Bruce Edward 'Mel' (1949-) American engineer mission specialist astronaut. Flew on STS-41, STS-49. More...
  • Akers Akers, Thomas Dale 'Tom' (1951-) American test pilot mission specialist astronaut. Flew on STS-41, STS-49, STS-61, STS-79. More...

Associated Countries
Associated Spacecraft
  • Discovery American manned spaceplane. 39 launches, 1984.08.30 to 2011.02.24. More...

See also
Associated Manufacturers and Agencies
  • NASA American agency overseeing development of rockets and spacecraft. National Aeronautics and Space Administration, USA, USA. More...
  • NASA Houston American agency overseeing development of rockets and spacecraft. Houston, Houston, USA. More...

Associated Programs
  • STS The Space Transportation System (Space Shuttle) was conceived originally as a completely reusable system that would provide cheap, routine access to space and replace all American and civilian military launch vehicles. Crippled by technological overreach, political compromise, and budget limitations, it instead ended up costing more than the expendable rockets it was to have replaced. STS sucked the money out of all other NASA projects for half a century. The military abandoned its use after the Challenger shuttle explosion in the 1980's. More...

Associated Launch Sites
  • Cape Canaveral America's largest launch center, used for all manned launches. Today only six of the 40 launch complexes built here remain in use. Located at or near Cape Canaveral are the Kennedy Space Center on Merritt Island, used by NASA for Saturn V and Space Shuttle launches; Patrick AFB on Cape Canaveral itself, operated the US Department of Defense and handling most other launches; the commercial Spaceport Florida; the air-launched launch vehicle and missile Drop Zone off Mayport, Florida, located at 29.00 N 79.00 W, and an offshore submarine-launched ballistic missile launch area. All of these take advantage of the extensive down-range tracking facilities that once extended from the Cape, through the Caribbean, South Atlantic, and to South Africa and the Indian Ocean. More...

STS-41 Chronology


1990 October 6 - . 11:47 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39B. LV Family: Shuttle. Launch Vehicle: Shuttle. LV Configuration: Space Shuttle STS-41.
  • STS-41 - . Call Sign: Discovery. Crew: Akers; Cabana; Melnick; Richards; Shepherd. Payload: Discovery F11 / Ulysses [IUS + PAM-S]. Mass: 22,140 kg (48,810 lb). Nation: USA. Related Persons: Akers; Cabana; Melnick; Richards; Shepherd. Agency: NASA Houston. Program: STS. Class: Manned. Type: Manned spaceplane. Flight: STS-41. Spacecraft: Discovery. Duration: 4.09 days. Decay Date: 1990-10-10 . USAF Sat Cat: 20841 . COSPAR: 1990-090A. Apogee: 307 km (190 mi). Perigee: 300 km (180 mi). Inclination: 28.5000 deg. Period: 90.60 min. Manned five crew. Deployed Ulysses spacecraft. Payloads: Deploy Ulysses, Shuttle Solar Backscatter Ultraviolet, Intelsat Solar Array Coupon, Solid-Surface Combustion Experiment, Investigations Into Polymer Membrane Processing, Chromo-some and Plant Cell Division in Space, Physiological Systems Experiment, Voice Command System, Radiation Monitoring Equipment III, Air Force Maui Optical Site.

1990 October 10 - .
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