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  2. STS-41-C - Wikipedia

    en.wikipedia.org/wiki/STS-41-C

    STS-41-C post flight presentation, narrated by the astronauts (19 minutes). STS-41-C launched successfully at 8:58 a.m. EST on April 6, 1984. The mission marked the first direct ascent trajectory for the Space Shuttle; Challenger reached its 533 km (331 mi) - high orbit using its Orbiter Maneuvering System (OMS) engines only once, to ...

  3. List of Space Shuttle rollbacks - Wikipedia

    en.wikipedia.org/wiki/List_of_Space_Shuttle...

    STS-41-D: Abort Space shuttle main engine (SSME) #3 replaced after a launch abort. 3 1985-03-05 Challenger: STS-51-E. STS-51-B. Payload Challenger was rolled back from Pad 39A due to a timing problem with the primary payload, the Tracking and Data Relay Satellite-B (TDRS-B). The vehicle was de-stacked in the VAB and the orbiter returned to ...

  4. STS-41 - Wikipedia

    en.wikipedia.org/wiki/STS-41

    STS-41 was the 36th Space Shuttle mission and the eleventh mission of the Space Shuttle Discovery. The four-day mission had a primary objective of launching the Ulysses probe as part of the " International Solar Polar Mission " (ISPM).

  5. Manned Maneuvering Unit - Wikipedia

    en.wikipedia.org/wiki/Manned_Maneuvering_Unit

    It was first tested on February 7 during mission STS-41-B by astronauts Bruce McCandless II and Robert L. Stewart. Two months later, during mission STS-41-C , astronauts James van Hoften and George Nelson attempted to use the MMU to capture the Solar Maximum Mission satellite and to bring it into the orbiter's payload bay for repairs and servicing.

  6. 1984 in spaceflight - Wikipedia

    en.wikipedia.org/wiki/1984_in_spaceflight

    STS-41-B Challenger: Bruce McCandless II Robert L. Stewart Continued testing the MMUs and practice with tools and procedures to be used with recovery and repair of the SMM satellite. [5] 8 April 14:18 2 hours 38 minutes 16:56 STS-41-C Challenger: George Nelson James van Hoften: Nelson rode the MMU to the SMM satellite.

  7. Space Shuttle abort modes - Wikipedia

    en.wikipedia.org/wiki/Space_Shuttle_abort_modes

    An orbit near the craft's planned orbit was established, and the mission continued despite the abort to a lower orbit. [7] [8] The Mission Control Center at Johnson Space Center observed an SSME failure and called "Challenger-Houston, abort ATO." The engine failure was later determined to be an inadvertent engine shutdown caused by faulty ...

  8. List of spacewalks and moonwalks 1965–1999 - Wikipedia

    en.wikipedia.org/wiki/List_of_spacewalks_and...

    STS-41-B EVA 2 Bruce McCandless Robert Stewart: 9 February 1984 10:24 9 February 1984 16:41 6 h 17 min McCandless and Stewart continued testing the MMUs. They also continued practice with tools and procedures to be used with recovery and repair of the SMM satellite. [59] 50. STS-41-C EVA 1 George Nelson James van Hoften: April 8, 1984 14:18 ...

  9. Earth Radiation Budget Satellite - Wikipedia

    en.wikipedia.org/wiki/Earth_Radiation_Budget...

    ERBS was launched on October 5, 1984, by the Space Shuttle Challenger during the STS-41-G mission and deactivated on October 14, 2005. [4] It re-entered the Earth's atmosphere on January 8, 2023, over the Bering Sea near the Aleutian Islands. [5] [6] NASA's CERES instruments have continued the ERB data record after 1997.