On April 19, 1985, after a week-long flight, Discovery conducted the fifth shuttle landing at KSC. The shuttle suffered extensive brake damage and a ruptured tire during landing. This forced all subsequent shuttle landings to be done at Edwards Air Force Base, California, until the development and implementation of nose wheel steering made landings at KSC more feasible.
Seats 1–4 are on the Flight Deck. Seats 5–7 are on the Middeck.
S1
Bobko
Bobko
S2
Williams
Williams
S3
Seddon
Hoffman
S4
Griggs
Griggs
S5
Hoffman
Seddon
S6
Walker
Walker
S7
Garn
Garn
Mission summary
During STS-51-D, the shuttle crew deployed two communications satellites: Telesat-I (Anik C1) and Syncom IV-3 (also known as Leasat-3); both were Hughes-built satellites. Telesat-I was attached to a Payload Assist Module (PAM-D) motor and successfully deployed. Syncom IV-3, however, failed to initiate antenna deployment and spin-up, or ignite its perigee kick motor upon deployment. The mission was consequently extended by two days to ensure that the satellite's spacecraft sequencer start lever was in its proper position. Griggs and Hoffman performed an unscheduled Extra-Vehicular Activity (EVA) to attach homemade "Flyswatter" devices to the shuttle's Remote Manipulator System (Canadarm). Seddon then engaged the satellite's start lever using the RMS, but again the post-deployment sequence did not begin.[4] The satellite was subsequently retrieved, repaired and successfully redeployed during the STS-51-I mission later that year.
Discovery's other mission payloads included the Continuous Flow Electrophoresis System III (CFES-III), which was flying for sixth time; two Shuttle Student Involvement Program (SSIP) experiments; the American Flight Echo-cardiograph (AFE); two Getaway specials (GASs); a set of Phase Partitioning Experiments (PPE); an astronomical photography verification test; various medical experiments; and "Toys in Space", an informal study of the behavior of simple toys in a microgravity environment, with the results being made available to school students upon the shuttle's return.[5]
During the shuttle's landing at KSC on April 19, 1985, extensive brake damage was suffered, and a landing gear tire ruptured. This prompted future shuttle flights to land at Edwards Air Force Base, California, until effective nose wheel steering could be implemented to reduce risks during landing.
Wake-up calls
NASA began a tradition of playing music to astronauts during the Project Gemini, and first used music to wake up a flight crew during Apollo 15. Each track is specially chosen, often by the astronauts' families, and usually has a special meaning to an individual member of the crew, or is applicable to their daily activities.[6]
^"SATCAT". Jonathan's Space Report. Retrieved March 24, 2014.
^NASA. "STS-51D Press Kit" (PDF). Retrieved December 16, 2009. This article incorporates text from this source, which is in the public domain.
^"STS-51D". Spacefacts. Retrieved February 26, 2014.
^Walker, Charles D. (April 14, 2005). "Oral History Transcript" (PDF) (Interview). Interviewed by Johnson, Sandra. NASA Johnson Space Center Oral History Project. Retrieved December 29, 2011. This article incorporates text from this source, which is in the public domain.
^"STS-51D". NASA. February 18, 2010. Retrieved January 16, 2018. This article incorporates text from this source, which is in the public domain.
^Fries, Colin (June 25, 2007). "Chronology of Wakeup Calls" (PDF). NASA. Retrieved August 13, 2007. This article incorporates text from this source, which is in the public domain.
External links
NASA mission summary
STS-51D Video Highlights July 19, 2012, at the Wayback Machine
February 06, 2023
16th, flight, nasa, space, shuttle, program, fourth, flight, space, shuttle, discovery, launch, from, kennedy, space, center, florida, april, 1985, delayed, minutes, after, boat, strayed, into, restricted, solid, rocket, booster, recovery, zone, third, shuttle. STS 51 D was the 16th flight of NASA s Space Shuttle program and the fourth flight of Space Shuttle Discovery 2 The launch of STS 51 D from Kennedy Space Center KSC Florida on April 12 1985 was delayed by 55 minutes after a boat strayed into the restricted Solid Rocket Booster SRB recovery zone STS 51 D was the third shuttle mission to be extended STS 51 DThe crew attempt to activate Syncom IV 3 via a flyswatter device attached to Discovery s CanadarmNamesSpace Transportation System 16Mission typeCommunications satellite deploymentOperatorNASACOSPAR ID1985 028ASATCAT no 15641Mission duration6 days 23 hours 55 minutes 23 seconds achieved Distance travelled4 650 658 km 2 889 785 mi Orbits completed110Spacecraft propertiesSpacecraftSpace Shuttle DiscoveryLaunch mass113 802 kg 250 890 lb Landing mass89 818 kg 198 015 lb Payload mass13 039 kg 28 746 lb CrewCrew size7MembersKarol J BobkoDonald E WilliamsMargaret Rhea SeddonS David GriggsJeffrey A HoffmanCharles D WalkerJake GarnEVAs1EVA duration3 hours 6 minutesStart of missionLaunch dateApril 12 1985 13 59 05 UTCRocketSpace Shuttle DiscoveryLaunch siteKennedy Space Center LC 39AContractorRockwell InternationalEnd of missionLanding dateApril 19 1985 13 54 28 UTCLanding siteKennedy Space Center SLF Runway 33Orbital parametersReference systemGeocentric orbit 1 RegimeLow Earth orbitPerigee altitude300 km 190 mi Apogee altitude452 km 281 mi Inclination28 45 Period94 40 minutesInstrumentsAmerican Flight Echo cardiograph AFE Continuous Flow Electrophoresis System CFES III Getaway specials GASs Phase Partitioning Experiments PPE STS 51 D mission patchBack row S David Griggs Charles D Walker Jake GarnFront row Karol J Bobko Donald E Williams Rhea Seddon Jeffrey A HoffmanSpace Shuttle program STS 51 C 15 STS 51 B 17 On April 19 1985 after a week long flight Discovery conducted the fifth shuttle landing at KSC The shuttle suffered extensive brake damage and a ruptured tire during landing This forced all subsequent shuttle landings to be done at Edwards Air Force Base California until the development and implementation of nose wheel steering made landings at KSC more feasible Contents 1 Crew 1 1 Spacewalk 1 2 Crew seating arrangements 2 Mission summary 3 Wake up calls 4 Gallery 5 See also 6 References 7 External linksCrew EditPosition AstronautCommander Karol J BobkoSecond spaceflightPilot Donald E WilliamsFirst spaceflightMission Specialist 1 Rhea SeddonFirst spaceflightMission Specialist 2 S David GriggsOnly spaceflightMission Specialist 3 Jeffrey A HoffmanFirst spaceflightPayload Specialist 1 Charles D WalkerSecond spaceflightPayload Specialist 2 Jake Garn U S Senator R UT Only spaceflightGarn was a Republican Senator from Utah acting as a congressionalobserver He was the first sitting member of Congress in space Spacewalk Edit Hoffman and Griggs EVA 1 EVA 1 Start April 16 1985 EVA 1 End April 16 1985 Duration 3 hours 6 minutesCrew seating arrangements Edit Seat 3 Launch Landing Seats 1 4 are on the Flight Deck Seats 5 7 are on the Middeck S1 Bobko BobkoS2 Williams WilliamsS3 Seddon HoffmanS4 Griggs GriggsS5 Hoffman SeddonS6 Walker WalkerS7 Garn GarnMission summary EditDuring STS 51 D the shuttle crew deployed two communications satellites Telesat I Anik C1 and Syncom IV 3 also known as Leasat 3 both were Hughes built satellites Telesat I was attached to a Payload Assist Module PAM D motor and successfully deployed Syncom IV 3 however failed to initiate antenna deployment and spin up or ignite its perigee kick motor upon deployment The mission was consequently extended by two days to ensure that the satellite s spacecraft sequencer start lever was in its proper position Griggs and Hoffman performed an unscheduled Extra Vehicular Activity EVA to attach homemade Flyswatter devices to the shuttle s Remote Manipulator System Canadarm Seddon then engaged the satellite s start lever using the RMS but again the post deployment sequence did not begin 4 The satellite was subsequently retrieved repaired and successfully redeployed during the STS 51 I mission later that year Discovery s other mission payloads included the Continuous Flow Electrophoresis System III CFES III which was flying for sixth time two Shuttle Student Involvement Program SSIP experiments the American Flight Echo cardiograph AFE two Getaway specials GASs a set of Phase Partitioning Experiments PPE an astronomical photography verification test various medical experiments and Toys in Space an informal study of the behavior of simple toys in a microgravity environment with the results being made available to school students upon the shuttle s return 5 During the shuttle s landing at KSC on April 19 1985 extensive brake damage was suffered and a landing gear tire ruptured This prompted future shuttle flights to land at Edwards Air Force Base California until effective nose wheel steering could be implemented to reduce risks during landing Wake up calls EditNASA began a tradition of playing music to astronauts during the Project Gemini and first used music to wake up a flight crew during Apollo 15 Each track is specially chosen often by the astronauts families and usually has a special meaning to an individual member of the crew or is applicable to their daily activities 6 Flight Day Song Artist ComposerDay 2 Top of the World The CarpentersDay 3 Rescue Aid Society Song from the Disney film The RescuersGallery Edit Telesat I during deployment Syncom IV 3 during deployment Hoffman and Griggs attach the flyswatter device to the end of the Canadarm See also Edit Spaceflight portalList of human spaceflights List of Space Shuttle missionsReferences Edit SATCAT Jonathan s Space Report Retrieved March 24 2014 NASA STS 51D Press Kit PDF Retrieved December 16 2009 This article incorporates text from this source which is in the public domain STS 51D Spacefacts Retrieved February 26 2014 Walker Charles D April 14 2005 Oral History Transcript PDF Interview Interviewed by Johnson Sandra NASA Johnson Space Center Oral History Project Retrieved December 29 2011 This article incorporates text from this source which is in the public domain STS 51D NASA February 18 2010 Retrieved January 16 2018 This article incorporates text from this source which is in the public domain Fries Colin June 25 2007 Chronology of Wakeup Calls PDF NASA Retrieved August 13 2007 This article incorporates text from this source which is in the public domain External links EditNASA mission summary STS 51D Video Highlights Archived July 19 2012 at the Wayback Machine Retrieved from https en wikipedia org w index php title STS 51 D amp oldid 1119720003, wikipedia, wiki, book, books, library,
