Awful news: Broken Cable Damages Arecibo Observatory

Discussion in 'Science' started by callan, Aug 12, 2020.

  1. Quadbox

    Quadbox Member

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    It'd been operating down a reaction wheel for quite a while before then, and they lost another reaction wheel. And it was out of fuel. So there was really no way to keep it going. It's been effectively replaced by TESS, and now also the european CHEOPS which are both performing similar roles
     
    Last edited: Nov 20, 2020
  2. MR CHILLED

    MR CHILLED D'oh!

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    After reading the just other day that the platform was near collapse this doesn't come as any surprise. Sad day : (
     
  3. 7nothing

    7nothing Member

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    Clearly they were getting too close, and the aliens had to put a stop to it.
     
  4. boneburner

    boneburner Member

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    Aaaaannd..... it's collapsed.

    As feared, the loss of the second cable was too much for the structure to bear . The 900 ton platform usually suspended above the dish has vanished from view and is, probably, not much more than a twisted pile of scrap metal.

    [​IMG]
     
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  5. Hive

    Hive Member

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  6. RobRoySyd

    RobRoySyd Member

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    It seems what was the initial trigger of this sad chain of events was a small earthquake. That was the straw that broke the camel's back that was already weakened by a lack of maintenance.
     
  7. OP
    OP
    callan

    callan Member

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    I Read about it this morning. Nothing more needs be said, I'm afraid. A sad end indeed.
     
  8. cvidler

    cvidler Member

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    couldn't they have lowered it gracefully - or was hat part of golden eye fantasy?
     
  9. Phido

    Phido Member

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    It was structurally unsafe. They looked at it, and basically said don't go near it, it could give way at anytime.
    Normally yes they can lower it for upgrades and maintenance.
     
  10. cvidler

    cvidler Member

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    you'd think attempting to lower it would be a safer option, falling from even 1m lower would be less dangerous than the full height. (but again I assume smart people with more detailed knowledge of the entire situation know what they're doing).

    would also make the clean up easier, if they could've disassembled it, rather than now, they'll have a tangled mess of steel to cut up and remove.
     
  11. Sphinx2000

    Sphinx2000 Member

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    What a mess.
    RIP Arecibo Telescope 1963-2020.

     
  12. MR CHILLED

    MR CHILLED D'oh!

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    "wow, this hurts........"this, it hurts" :(

     
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  13. Tinian

    Tinian Member

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    [​IMG]

    That's a sad picture.

    In August, an auxiliary cable failed after slipping from its socket in one of the towers and left a 30m gash in the dish below. Engineers were assessing the damage and how to repair it when a main cable connected to the same tower broke on November 6.

    Before Tuesday, a controlled demolition had been planned to avoid an unexpected collapse.
     
    Last edited: Dec 3, 2020
  14. boneburner

    boneburner Member

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    Drone monitoring equipment captures the moment it all went pear shaped

     
  15. OP
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    callan

    callan Member

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    and this makes me sad....
     
  16. Phido

    Phido Member

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    Yeh it will likely be the lack of searching and tracking orbital objects that will be the biggest loss. While there are others, there aren't enough, and it was a large and particularly useful on that mission.
     
  17. mAJORD

    mAJORD Member

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    Amazing footage.

    How unexpected was this really though? Was it mentioned anywhere what the design life for the structure was? and under what maintaince reigime?

    it's pretty Niche. and Delicate
     
  18. luke o

    luke o Member

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    Goodbye fair telescope! Contact made you famous, still one of my favourite movies.
     
  19. MR CHILLED

    MR CHILLED D'oh!

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    Maybe we should see this as a golden opportunity to build a bigger and better one?
     
  20. Quadbox

    Quadbox Member

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    Maybe we should see this as yet another example of how the US treats infrastructure in puerto rico and just make them a bloody state already :p
     

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