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Thread: Osiris-Rex mission to bring back samples from astroid Bennu

  1. #31
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    NASA on what they will be doing over the next few months as they approach Bennu.

    https://www.nasa.gov/feature/goddard...tions-campaign

    During the mission’s approach phase, OSIRIS-REx will:

    regularly observe the area around the asteroid to search for dust plumes and natural satellites, and study Bennu’s light and spectral properties;
    execute a series of four asteroid approach maneuvers, beginning on Oct. 1, slowing the spacecraft to match Bennu's orbit around the Sun;
    jettison the protective cover of the spacecraft’s sampling arm in mid-October and subsequently extend and image the arm for the first time in flight; and
    use OCAMS to reveal the asteroid’s overall shape in late-October and begin detecting Bennu’s surface features in mid-November.
    I am because we are
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  2. #32
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    OSIRIS-REx has started adjusting its approach to asteroid Bennu.

    http://www.spacedaily.com/reports/NA...euver_999.html

    NASA's OSIRIS-REx spacecraft executed its first Asteroid Approach Maneuver (AAM-1) today putting it on course for its scheduled arrival at the asteroid Bennu in December.

    The spacecraft's main engine thrusters fired in a braking maneuver designed to slow the spacecraft's speed relative to Bennu from approximately 1,100 mph (491 m/sec) to 313 mph (140 m/sec).

    The mission team will continue to examine telemetry and tracking data as they become available and will have more information on the results of the maneuver over the next week.
    I am because we are
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  3. #33
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    OSIRIS-REx is less than 100,000km from Bennu.

    https://www.cnet.com/news/nasa-osiri...-target-bennu/

    Officially beginning "Asteroid Operations" in August, NASA's asteroid chasing spacecraft is slowing itself down for its arrival at asteroid Bennu on Dec. 3. In the meantime, NASA has provided a "tale of the tape" for its approach -- a series of images stitched together that documents OSIRIS-REx's approach.

    Shot between Aug. 17 and Oct. 1, OSIRIS-REx's PolyCam imager snapped the obsidian black of the cosmos and a tiny, slowly brightening spot of light: 101955 Bennu. Over that period the spacecraft moved from 2.2 million kilometres away to a measly (in space terms) 192,000 kilometres, taking a snapshot every Monday, Wednesday and Friday (asteroid chasers -- and their engineers -- need weekends, too). That decreasing distance saw Bennu grow from 0.017 pixels to a whopping 0.19 pixels in size, giving us the following enticing but grainy photoset below.
    I am because we are
    (African saying)

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