Encyclopedia Astronautica
STS-41-D



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STS-41-D
View of launch of orbiter Discovery on 41-D mission
Credit: NASA
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STS-41-D
Credit: www.spacefacts.de - www.spacefacts.de
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STS-41-D
View of foot restraint strayed from Discovery
Credit: NASA
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STS-41-D
Payload specialist Charles Walker works with CFES experiment
Credit: NASA
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STS-41-D
Mission specialist Judith Resnik at interdeck access hatch
Credit: NASA
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STS-41-D
Deployment of the SBS-4 communications satellite
Credit: NASA
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STS-41-D
View of the SBS-4 communications satellite in orbit above the earth
Credit: NASA
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STS-41-D
Deployment of the Syncom IV (Leasat-2) satellite
Credit: NASA
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STS-41-D
View of the Syncom IV satellite in orbit over the earth
Credit: NASA
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Deployment of the Telstar communications satellite
Credit: NASA
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View of Mission Specialist Judith Resnik on the middeck
Credit: NASA
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Crew of STS 41-D makes a visual post-flight inspection of orbiter
Credit: NASA
Crew: Coats, Hartsfield, Hawley, Mullane, Resnik, Walker. First flight of shuttle Discovery. Manned six crew. First flight of space shuttle Discovery; deployed SBS 4, Leasat 1, Telstar 3C. First launch aborted at T-3 seconds after SSMEs ignited, Toilet failed. First occurrence of blow-by in SRB field joints.

Manned six crew. First flight of space shuttle Discovery; deployed SBS 4, Leasat 1, Telstar 3C. Payloads: Satellite Business System (SBS)-D commu-nications satellite with Payload Assist Module (PAM)-D deployment, Syncom IV-2 communica-tions satellite with its unique stage deployment, Telstar (American Telephone and Telegraph) 3-C with PAM-D deployment, Office of Aeronautics and Space Technology (OAST)-1 experiments. Deployment and restowing of large solar array. Continuous Flow Electrophoresis (CFES). IMAX camera.

Orbits of Earth: 96. Distance traveled: 4,007,266 km. Orbiter Liftoff Mass: 119,511 kg. Orbiter Mass at Landing: 91,476 kg. Payload to Orbit: 21,552 kg. Payload Returned: 5,123 kg. Landed at: Runway 17 dry lake bed at Edwards Air Force Base, . Landing Speed: 370 kph. Touchdown miss distance: 765 m. Landing Rollout: 3,131 m. A student experiment, sponsored by Rockwell International, of indium crystal growth using the float zone technique was successful, although a blown fuse resulted in a premature shutdown.

NASA Official Mission Narrative

Mission Name: 41-D (12)
DISCOVERY (1)
Pad 39-A (24)
12th Shuttle Mission
1st Flight OV-103
RSLS Abort after SSME Ignition (1)
2nd Rollback

Crew:
Henry W. Hartsfield (2), Jr., Commander
Michael L. Coats (1), Pilot
Judith A. Resnik (1), Mission Specialist 1
Steven A. Hawley (1), Mission Specialist 2
Richard M. Mullane (1), Mission Specialist 3
Charles D. Walker (1), Payload Specialist 1

Milestones:
OPF-Nov. 10,1983
VAB-Dec. 9,1983
(storage)
Flow A:
OPF - Jan. 10, 1984
VAB - May 12,1984
PAD - May 19,1984
Flow B (rollback):
VAB - July 14, 1984
OPF - July 17,1984
VAB - Aug. 1,1984
PAD - Aug. 9, 1984

Payload:
SBS-D,TELSTAR-3C,LEASAT-1,OAST-1,CFES(5),RME(3),SSIP(x1),CLOUDS,
IMAX-CAMERA(2)
Mission Objectives:

Launch:
August 30, 1984, 8:41:50 a.m, EDT. Launch attempt June 25 scrubbed during T-9 minute hold due to failure of orbiter's back-up general purpose computer (GPC). Launch attempt June 26 aborted at T-4 seconds when GPC detected anomaly in orbiter's number three main engine. Discovery returned to OPF and number three main engine replaced. (To preserve launch schedule of future missions, 41-D cargo remanifested to include payload elements from both 41-D and 41-F flights; 41-F mission cancelled.) Shuttle restacked and returned to pad. Third launch attempt Aug. 29 delayed when discrepancy noted in flight software of Discovery's master events controller relating to solid rocket booster fire commands. A software patch was verified and implemented to assure all three booster fire commands were issued in the proper time interval. Launch Aug. 30 delayed six minutes, 50 seconds when private aircraft intruded into warning area off coast of Cape Canaveral. Launch Weight: 263,477 lbs.
Orbit:
Altitude: 184nm
Inclination: 28.5 degrees
Orbits: 97
Duration: Six days, zero hours, 56 minutes, four seconds.
Distance: 2,490,000 miles

Hardware:
SRB: BI-011
SRM: 013LW(HPM)
ET : 13/LWT-6
MLP : 2
SSME-1: SN-2109
SSME-2: SN-2018
SSME-3: SN-2021

Landing:
September 5, 1984, 8:37:54 s.m. PDT, Runway 17, Edwards Air Force Base, Calif. Rollout distance: 10,275 feet. Rollout time:60 seconds. Landing planned for Edwards desert runway because it was Discovery's first flight. Orbiter returned to KSC Sept. 10, 1984. Landing Weight: 201,674 lbs.

Mission Highlights:
Three satellites deployed: Satellite Business System SBS-D, SYNCOM IV-2 (also known as LEASAT2) and TELSTAR. The 102- foot-tall, 13-loot-wide Office of Application and Space Technology (OAST-1) solar wing extended from payload bay. Wing carried different types of solar cells and extended to full height several times. It demonstrated large lightweight solar arrays for future in building large facilities in space such as Space Station. Other payloads: Continuous Flow Electrophoresis System (CFES) Ill; Radiation Monitoring Equipment (RME); Shuttle Student Involvement Program (SSIP) experiment; lMAX camera, being flown second time; and an Air Force experiment, Cloud Logic to Optimize Use of Defense Systems (CLOUDS).

AKA: Discovery.
First Launch: 1984.08.30.
Last Launch: 1984.09.05.
Duration: 6.04 days.

More... - Chronology...


Associated People
  • Hartsfield Hartsfield, Henry Warren Jr 'Hank' (1933-) American test pilot astronaut. Flew on STS-4, STS-41-D, STS-61-A. More...
  • Mullane Mullane, Richard Michael 'Mike' (1945-) American test engineer mission specialist astronaut. Flew on STS-41-D, STS-27, STS-36. Author of the frankest astronaut biography ever published. Flew 150 combat missions in Vietnam. More...
  • Coats Coats, Michael Lloyd 'Mike' (1946-) American test pilot astronaut. Flew on STS-41-D, STS-29, STS-39. Flew 315 combat missions in Vietnam. More...
  • Walker Walker, Charles David (1948-) American engineer payload specialist astronaut. Flew on STS-41-D, STS-51-D, STS-61-B. More...
  • Resnik Resnik, Dr Judith Arlene 'JR' (1949-1986) Jewish-American engineer mission specialist astronaut. Flew on STS-41-D, STS-51-L. Engineer. Died in Challenger accident. More...
  • Hawley Hawley, Dr Steven Alan (1951-) American astronomer mission specialist astronaut. Flew on STS-41-D, STS-61-C, STS-31, STS-82, STS-93. Was married to astronaut Sally Ride. 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...

Bibliography
  • Mullane, Mike, Riding Rockets, Scribner, New York, 2006.

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-D Chronology


1984 June 26 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. LV Family: Shuttle. Launch Vehicle: Shuttle.
  • Shuttle Discovery Pad Abort - . Nation: USA. Program: STS. Flight: STS-41-D. Spacecraft: Discovery. Summary: The countdown for the second launch attempt for Discovery's maiden flight ended at T- 4 seconds when the orbiter's computers detected a sluggish valve in main engine #3. The main engine was replaced and Discovery was finally launched on August 30, 1984..

1984 August 30 - . 12:41 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. LV Family: Shuttle. Launch Vehicle: Shuttle. LV Configuration: Space Shuttle STS-14/41-D.
  • STS-41-D - . Call Sign: Discovery. Crew: Coats; Hartsfield; Hawley; Mullane; Resnik; Walker. Payload: Discovery F01 / SBS 4[PAM-D] / Telstar 302[PAM-D]. Mass: 21,552 kg (47,514 lb). Nation: USA. Related Persons: Coats; Hartsfield; Hawley; Mullane; Resnik; Walker. Agency: NASA Houston. Program: STS. Class: Manned. Type: Manned spaceplane. Flight: STS-41-D. Spacecraft: Discovery. Duration: 6.04 days. Decay Date: 1984-09-05 . USAF Sat Cat: 15234 . COSPAR: 1984-093A. Apogee: 307 km (190 mi). Perigee: 300 km (180 mi). Inclination: 28.5000 deg. Period: 90.60 min. Manned six crew. First flight of space shuttle Discovery; deployed SBS 4, Leasat 1, Telstar 3C. Payloads: Satellite Business System (SBS)-D commu-nications satellite with Payload Assist Module (PAM)-D deployment, Syncom IV-2 communica-tions satellite with its unique stage deployment, Telstar (American Telephone and Telegraph) 3-C with PAM-D deployment, Office of Aeronautics and Space Technology (OAST)-1 experiments. Deployment and restowing of large solar array. Continuous Flow Electrophoresis (CFES). IMAX camera.

1984 September 5 - .
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