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STS-51-A
Part of STS
STS-51-A
STS-51-A
Aerial view of the launch of STS 51-A shuttle Discovery
Credit: NASA
First retrieval of two satellites (Palapa B-2 and Westar Vl) for return to earth. Deployed Anik D2, Leasat 2.

AKA: Discovery. Launched: 1984-11-08. Returned: 1984-11-16. Number crew: 5 . Duration: 7.99 days.

Payloads: Telesat (Canada communications satellite)-H with Payload Assist Module (PAM)-D deployment, Syncom IV-1 communications satellite deployment with its unique stage, retrieval of PALAPA B-2 and WESTAR VI communications satellites with PAM-D which failed to ignite on the STS-41-B mission. Manned maneuvering unit (MMU) used for retrieval. Diffusive Mixing of Organic Solutions (DMOS) experiment.

Orbits of Earth: 126. Distance traveled: 5,293,785 km. Orbiter Liftoff Mass: 119,441 kg. Orbiter Mass at Landing: 94,120 kg. Payload to Orbit: 20,550 kg. Payload Returned: 11,273 kg. Landed at: Runway 15 at Kennedy Space Center, Florida. Landing Speed: 344 kph. Touchdown miss distance: 828 m. Landing Rollout: 2,883 m. EVA: Joseph Allen and Dale Gardner. EVA No. 1 duration, 6 hours, 13 minutes. EVA No. 2 duration, 6 hours and 1 minute. Manned maneuvering unit (MMU) operating time Joseph Allen 2 hours, 22 minutes, Dale Gardner 1 hour, 40 minutes.

NASA Official Mission Narrative

Mission Name: 51-A (14)
DISCOVERY (2)
Pad 39-A (26)
14th Shuttle mission
2nd Flight OV-103
3rd KSC landing

Crew:
Frederick H. Hauck (2), Commander
David M. Walker (1), Pilot
Anna L. Fisher (1), Mission Specialist 1
Dale A. Gardner (2), Mission Specialist 2
Joseph P. Allen (2), Mission Specialist 3

Milestones:
OPF - Sept. 10,1984
VAB - Oct. 18,1984
PAD - Oct. 23, 1984

Payload:
ANIK-D2,LEASAT-2,DMOS,RME(5)
Mission Objectives:

Launch:
November 8, 1984,7:15:00 a.m. EST. Launch attempt Nov. 7 scrubbed during built-in hold at T-20 minutes due to wind shears in upper atmosphere. Countdown Nov. 8 proceeded as scheduled. Launch Weight: 263,324 lbs.
Orbit:
Altitude: 185nm
Inclination: 28.5 degrees
Orbits: 127
Duration: 7 days, 23 hours, 44 minutes, 56 seconds.
Distance: 3,289,406 miles

Hardware:
SRB: BI-014
SRM: 014LW(HPM)
ET : 16/LWT-9
MLP : 2
SSME-1: SN-2109
SSME-2: SN-2018
SSME-3: SN-2012

Landing:
November 16, 1984, 6:59:56 a.m. EST, Runway 15, Kennedy Space Center, Fla. Rollout distance: 9,461 feet Rollout time: 58 seconds. Landing Weight: 207,505 lbs.

Mission Highlights:
Canadian communications satellite TELESAT-H (ANIK), attached to Payload Assist Module-D (PAM-D), deployed into geosynchronous orbit on flight day two. On third day, defense communications satellite SYNCOM IV-I (also known as LEASAT-1) deployed. Allen and Gardner, wearing jet-propelled manned maneuvering units, retrieved two malfunctioning satellites: PALAPA-B2 and WESTAR-VI, both deployed on Mission 41-B. Fisher operated remote manipulator system, grappling satellites and depositing them in payload bay. Middeck payloads: Diffusive Mixing of Organic Solutions (DMOS), and Radiation Monitoring Equipment (RME).


More at: STS-51-A.

Family: Manned spaceflight. People: Allen, Fisher, Gardner, Hauck, Walker, Dave. Country: USA. Spacecraft: Discovery. Projects: STS. Launch Sites: Cape Canaveral. Agency: NASA, NASA Houston.
Photo Gallery

STS-51-ASTS-51-A
View of the launch of STS 51-A shuttle Discovery
Credit: NASA


STS-51-ASTS-51-A
Astronaut Dale Gardner tethered to Discovery's starboard side.
Credit: NASA


STS-51-ASTS-51-A
Astronaut Dale Gardner using MMU to travel to Westar VI satellite
Credit: NASA


STS-51-ASTS-51-A
Astronaut Dale Gardner using MMU to travel to Westar VI satellite
Credit: NASA


STS-51-ASTS-51-A
Astronaut Dale Gardner using MMU to travel to Westar VI satellite
Credit: NASA


STS-51-ASTS-51-A
Astronaut Dale Gardner achieves hard dock with Westar VI satellite
Credit: NASA


STS-51-ASTS-51-A
Astronauts Gardner and Allen bringing Westar VI satellite into payload bay
Credit: NASA


STS-51-ASTS-51-A
Astronauts Gardner and Allen during loading of Westar VI in payload bay
Credit: NASA


STS-51-ASTS-51-A
Astronauts Gardner and Allen during loading of Palapa B-2 in payload bay
Credit: NASA


STS-51-ASTS-51-A
Astronauts Joseph Allen rides cherry picker over stowage area/work station
Credit: NASA


STS-51-ASTS-51-A
Astronauts Gardner and Allen on the RMS after recapture of Westar VI
Credit: NASA


STS-51-ASTS-51-A
Astronaut Dale Gardner holds up for sale sign after EVA
Credit: NASA


STS-51-ASTS-51-A
Astronaut Anna Fisher poses near a 3M experiment involving the DMOS
Credit: NASA


STS-51-ASTS-51-A
Syncom IV-1 satellite leaving Discovery's payload bay
Credit: NASA



1984 November 8 - . 12:15 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. Launch Platform: MLP2. LV Family: Shuttle. Launch Vehicle: Space Shuttle.
1984 November 10 - .
1984 November 12 - . 13:25 GMT - .
1984 November 14 - .
1984 November 14 - .
1984 November 16 - .

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