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  2. 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 ...

  3. Boeing Orbital Flight Test - Wikipedia

    en.wikipedia.org/wiki/Boeing_Orbital_Flight_Test

    This delay resulted in an abnormal orbit and excessive fuel use. The decision was made to scratch the ISS rendezvous/docking since the spacecraft burned too much fuel to reach orbit even after Mission control center fixed the MET clock issue. NASA and Boeing officials placed the spacecraft in a different orbit and the entire flight plan had to ...

  4. Maintenance of the International Space Station - Wikipedia

    en.wikipedia.org/wiki/Maintenance_of_the...

    On 25 September 2008, NASA announced significant progress in diagnosing the source of the starboard SARJ problem and a programme to repair it on orbit. The repair programme began with the flight of the Space Shuttle Endeavour on STS-126. The crew carried out servicing of both the starboard and port SARJs, lubricating both joints and replacing ...

  5. Launch window - Wikipedia

    en.wikipedia.org/wiki/Launch_window

    Animation of InSight 's trajectory InSight · Earth · Mars Mars launch windows and distance from Earth In the context of spaceflight, launch period is the collection of days, and launch window is the time period on a given day, during which a particular rocket must be launched in order to reach its intended target.

  6. Orbital mechanics - Wikipedia

    en.wikipedia.org/wiki/Orbital_mechanics

    From a circular orbit, thrust applied in a direction opposite to the satellite's motion changes the orbit to an elliptical one; the satellite will descend and reach the lowest orbital point (the periapse) at 180 degrees away from the firing point; then it will ascend back. The period of the resultant orbit will be less than that of the original ...

  7. Oberth effect - Wikipedia

    en.wikipedia.org/wiki/Oberth_effect

    The thrust produced by a rocket engine is independent of the rocket’s velocity relative to the surrounding atmosphere. A rocket acting on a fixed object, as in a static firing, does no useful work on the rocket; the rocket's chemical energy is progressively converted to kinetic energy of the exhaust, plus heat.

  8. Mariner 9 - Wikipedia

    en.wikipedia.org/wiki/Mariner_9

    Mariner 9 (Mariner Mars '71 / Mariner-I) was a robotic spacecraft that contributed greatly to the exploration of Mars and was part of the NASA Mariner program.Mariner 9 was launched toward Mars on May 30, 1971, [2] [3] from LC-36B at Cape Canaveral Air Force Station, Florida, and reached the planet on November 14 of the same year, [2] [3] becoming the first spacecraft to orbit another planet ...

  9. STS-51-F - Wikipedia

    en.wikipedia.org/wiki/STS-51-F

    STS-51-F (also known as Spacelab 2) was the 19th flight of NASA's Space Shuttle program and the eighth flight of Space Shuttle Challenger.It launched from Kennedy Space Center, Florida, on July 29, 1985, and landed eight days later on August 6, 1985.