Discovery STS-51-I 20th Space Shuttle Flight Highlights 19

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'Commander: Joe H. Engle
Pilot: Richard O. Covey
Mission Specialists: James D.A. van Hoften, William F. Fisher, John M. "Mike" Lounge
Dates: August 27-September 3, 1985
Vehicle: Discovery OV-103
Payloads: ASC-1, AUSSAT-1/PAM-D, SYNCOM IV-4/PAM-D (LEASAT-4), and PVTOS
EVA: (Tethered) retrieved, repaired, and deployed SYNCOM IV-3 (LEASAT-3)
Landing site: Runway 23 dry lakebed at Edwards AFB, CA

Narrated by the Commander and crew, this program contains footage selected by the astronauts, as well as their comments on the mission. Footage includes launch, onboard crew activities, and landing.'

NASA film JSC-876.

Originally a public domain film from NASA, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied.
The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original).

en.wikipedia.org/wiki/STS-51-I
Wikipedia license: creativecommons.org/licenses/by-sa/3.0/

STS-51-I (formerly STS-27) was the 20th mission of NASA's Space Shuttle program and the sixth flight of Space Shuttle Discovery. During the mission, Discovery deployed three communications satellites into orbit. The mission launched from Kennedy Space Center, Florida, on August 27, 1985, and landed at Edwards Air Force Base, California, on September 3...

Mission summary

Discovery launched at 6:58 am EDT on August 27, 1985. Two earlier launch attempts, one on August 24 and another on August 25, were scrubbed – the first because of poor weather, and the second because the backup orbiter computer failed and had to be replaced. The successful launch on August 27 took place just as an approaching storm front reached the launch pad area.

The five-man STS 51-I crew included Joe H. Engle, commander; Richard O. Covey, pilot; and James van Hoften, John M. Lounge, and William F. Fisher, mission specialists. Their primary mission was to deploy three commercial communications satellites and retrieve and repair the Syncom IV-3 satellite, which had been deployed during the STS 51-D mission in April 1985, but had malfunctioned. In addition, a mid-deck materials processing experiment, the Physical Vapor Transport Organic Solid Experiment (PVTOS), was flown aboard Discovery.

The three communications satellites were Aussat 1, a multi-purpose spacecraft owned by Australia; ASC-1, owned and operated by the American Satellite Company; and Syncom IV-4, leased to the Department of Defense by its builder, Hughes Co. Both Aussat 1 and ASC-1 were deployed on the day of the launch, 27 August. Syncom IV-4 was deployed two days later. All three achieved their planned geosynchronous orbits and became operational.

On the fifth day of the mission, astronauts Fisher and van Hoften began repair efforts on the malfunctioning Syncom IV-3, following a successful rendezvous maneuver by Discovery. The effort was slowed by a problem in the Remote Manipulator System elbow joint. After a second EVA by Fisher and van Hoften, the satellite's control lever was repaired, permitting commands from the ground to activate the spacecraft's systems and eventually send it into its proper geosynchronous orbit. The two EVAs lasted a total of 11 hours and 46 minutes.

Discovery landed on Runway 23 at Edwards Air Force Base at 6:16 am PDT on September 3, 1985. The flight lasted a total of 7 days, 2 hours, 18 minutes and 42 seconds, during which the shuttle completed 111 orbits of the Earth...

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