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Articles tagged: B-modes

  • Koen Geurts, Philae, Rosetta June 2015 The day Philae landed: how a rough touchdown still made history at the Rosetta Mission

    ... at one: the touchdown signal, harpoon firing, commanding the thruster, switching off the flywheel, changing unit modes, normal telemetry, scientific data. One question occurred immediately: did the harpoons actually fire? They were...

    • Koen Geurts
    • Philae
    • Rosetta
    Authors: Koen Geurts    
  • Cosmic vision, ESA, NASA, Solar Orbiter, Tim Harris June 2015 Ultimate sunbather: NASA and ESA collaborate on Solar Orbiter

    ... and thermal model in the clean room at the test facility in Germany. Careful thruster placement and operating modes in orbit are incorporated into the design to avoid contamination by unspent fuel and all materials used in the...

    • Cosmic vision
    • ESA
    • NASA
    • Solar Orbiter
    • Tim Harris
    Authors: Tim Harris    
  • Copernicus, ESA, Gunther Kohlhammer, Simonetta Cheli, Wolfgang Rathgeber October 2015 Copernicus, ESA’s most ambitious Earth Observation programme

    .... Shortly after the launch of ERS-2 in 1995, ESA operated the two satellites in the first ‘tandem’ mission mode, which lasted for nine months. Beyond the sheer increase in revisiting the same site, this tandem...

    • Copernicus
    • ESA
    • Gunther Kohlhammer
    • Simonetta Cheli
    • Wolfgang Rathgeber
    Authors: Günther Kohlhammer     Simonetta Cheli     Wolfgang Rathgeber    
  • annular ion engine, electric propulsion, evolutionary xenon thruster, innovation, NASA October 2016 Unlocking the potential of annular ion engines

    ... ion optics which the AIE approach affords, could all but eliminate the anticipated first-failure mode of the ion thrusters, yielding ~10x increases in life time. This capability could be leveraged in several ways - by execution...

    • annular ion engine
    • electric propulsion
    • evolutionary xenon thruster
    • innovation
    • NASA
    Authors: Michael J. Patterson    
  • Lockheed Martin, mars, Mars Base Camp, NASA, Orion January 2017 Blueprint for NASA’s journey to Mars

    ... that maintains contact with the surface, pushing towards the surface as necessary, to keep in contact while in walking mode. During the EVAs, one crew member would remain in Orion. Multiple EVAs would be possible during the...

    • Lockheed Martin
    • mars
    • Mars Base Camp
    • NASA
    • Orion
    Authors: Joshua W. Ehrlich     Robert P. Chambers     Scott D. Norris     Stephen A. Bailey     Steven D. Jolly     Timothy Cichan    
  • Churyumov-Gerasimenko, Comet 67P, Philae, Rosetta, Rosetta Mission March 2017 Rosetta – outstanding climax to pioneering mission

    ...! Close flyby. In the night following the wake-up, the team configured the spacecraft to its normal flight mode and looked at the few telemetry indications we had from the long hibernation period. It turned out that...

    • Churyumov-Gerasimenko
    • Comet 67P
    • Philae
    • Rosetta
    • Rosetta Mission
    Authors: Paolo Ferri    
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