Philae has been found

Remember Philae, the comet lander that bounced a bit too much on the surface when it’s ground hooks didn’t work and got lost? This happened in November 2014.

The orbiter Rosetta has taken high resolution images that have enabled identification of Philae, wedged on it’s side in the shade of a rock .

ESA: PHILAE FOUND!

philae_found_large

Less than a month before the end of the mission, Rosetta’s high-resolution camera has revealed the Philae lander wedged into a dark crack on Comet 67P/Churyumov–Gerasimenko.

The images were taken on 2 September by the OSIRIS narrow-angle camera as the orbiter came within 2.7 km of the surface and clearly show the main body of the lander, along with two of its three legs.

The images also provide proof of Philae’s orientation, making it clear why establishing communications was so difficult following its landing on 12 November 2014.

philae_close-up_labelled_medium

“With only a month left of the Rosetta mission, we are so happy to have finally imaged Philae, and to see it in such amazing detail,” says Cecilia Tubiana of the OSIRIS camera team, the first person to see the images when they were downlinked from Rosetta yesterday.

“After months of work, with the focus and the evidence pointing more and more to this lander candidate, I’m very excited and thrilled that we finally have this all-important picture of Philae sitting in Abydos,” says ESA’s Laurence O’Rourke, who has been coordinating the search efforts over the last months at ESA, with the OSIRIS and Lander Science Operations and Navigation Center (SONC, CNES) teams.

Philae was last seen when it first touched down at Agilkia, bounced and then flew for another two hours before ending up at a location later named Abydos, on the comet’s smaller lobe.

After three days, Philae’s primary battery was exhausted and the lander went into hibernation, only to wake up again and communicate briefly with Rosetta in June and July 2015 as the comet came closer to the Sun and more power was available.

However, until today, the precise location was not known.

“This remarkable discovery comes at the end of a long, painstaking search,” says Patrick Martin, ESA’s Rosetta Mission Manager. “We were beginning to think that Philae would remain lost forever. It is incredible we have captured this at the final hour.”

“This wonderful news means that we now have the missing ‘ground-truth’ information needed to put Philae’s three days of science into proper context, now that we know where that ground actually is!” says Matt Taylor, ESA’s Rosetta project scientist.

I understand them wanting to find out what happened to the lost lander, but the must have used quite a bit of their resources searching.

“Now that the lander search is finished we feel ready for Rosetta’s landing, and look forward to capturing even closer images of Rosetta’s touchdown site,” adds Holger Sierks, principal investigator of the OSIRIS camera.

The discovery comes less than a month before Rosetta descends to the comet’s surface. On 30 September, the orbiter will be sent on a final one-way mission to investigate the comet from close up, including the open pits in the Ma’at region, where it is hoped that critical observations will help to reveal secrets of the body’s interior structure.

The mission is far from a failure already and this will add to knowledge gained.

Leave a comment

2 Comments

  1. Kitty Catkin

     /  6th September 2016

    ‘Imaged’ ? Ouch.

    Reply
  2. Pickled Possum

     /  6th September 2016

    Oh Miss cooee Miss ….. Waves frantically! Ova here.

    Imaged
    To make or produce a likeness of: Imaged the poet in bronze.

    To mirror or reflect: a statue Imaged in the water.

    To make a visual representation of (an object) using remote scanning or technology such as magnetic resonance imaging: Imaged the diseased kidneys; imaged the surface of Mars.

    To transmit (an exact replica of the contents of a storage device) to another storage device: Imaged the hard drive to the server.

    Ouch hmmm means Sore?
    If this is a granma test, how did I do?

    Reply

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