>>  if it is the big cable then it will take some works to fix.

luckily, it's not one of the big cables.
it's a 17,000 pound auxiliary backup suspension cable.
some details below:

dan


---------- Forwarded message ---------
From: Angel M. Vazquez <[email protected]>
Date: Tue, Aug 11, 2020 at 3:15 PM
Subject: RE: [HamSCI] Damage at Arecibo Observatory from Broken Cable
To: <[email protected]>


Hi Ward et al,

Thanks for sharing this as I have been a little busy Hi Hi. As Ward
mentioned, an auxiliary cable that was installed to stabilize the torque of
the platform with the installation of the dome came out of its socket and
fell on the dish. We have plenty of panels to replace the broken ones on
the dish and dome. We have to remove the 17,000lb cable that is dangling on
the dome and replace that also replace the High Frequency Facility (HF)
sub-reflector that also was lost.

It may take a little while but we’re sure we can do it in due time.

Thanks again to all &73,

Angel WP3R



Angel M. Vazquez

*Head of Telescope Operations & Spectrum Manager*

Arecibo Observatory  –  www.naic.edu

National Astronomy and Ionosphere Center

(787)878-2612 ext.304



*From:* [email protected] <[email protected]> *On Behalf Of *Ward
Silver
*Sent:* Tuesday, August 11, 2020 5:51 PM
*To:* hamsci <[email protected]>
*Subject:* [HamSCI] Damage at Arecibo Observatory from Broken Cable



One of the backup suspension cables for the instrumentation dome broke and
fell into the dish itself, breaking panels and doing various other damage.
Angel WP3R (operations and spectrum manager) says the panels can all be
replaced but the facility will be down for a while.



https://www.ucf.edu/news/broken-cable-damages-arecibo-observatory/



Hopefully, the structure will be secure for any of the fall's hurricanes or
tropical storms!



73, Ward N0AX

Dan Werthimer
Marilyn and Watson Alberts Chair
Astronomy Dept and Space Sciences Lab
University of California, Berkeley


On Tue, Aug 11, 2020 at 7:16 PM Hien Vo Bich <[email protected]> wrote:

> HI DAN. If it is the big cable then it will take some works to fix. I used
> to work there
>
> On Wed, Aug 12, 2020, 06:39 Dan Werthimer <[email protected]> wrote:
>
>>
>>
>>
>> sad news about arecibo damage from broken cable:
>>
>> photo of damaged dish in this news piece:
>>
>>
>> https://www.vice.com/en_us/article/9358be/a-broken-cable-has-wrecked-one-of-earths-largest-radio-telescopes
>>
>>
>> a few details :
>>
>> Becker, Tracy M. [email protected] via
>> <https://support.google.com/mail/answer/1311182?hl=en> berkeley.edu
>> 4:16 AM (10 hours ago)
>> Reply
>> to [email protected]
>>
>> Dear AO Users,
>>
>>
>>
>> We have unfortunate news to share with the AO community. Early yesterday
>> morning one of the auxiliary cables at tower 4 of the Arecibo Observatory
>> experienced a failure.
>>
>>
>>
>> Fortunately, there were no resulting injuries to our team. The cable
>> failure damaged 250 panels of the primary dish, as well as 6-8 panels on
>> the Gregorian Dome.
>>
>>
>>
>> The telescope is currently undergoing inspections so that the following
>> tasks can be accomplished:
>>
>>    - Safely remove debris, preventing them from causing more damage.
>>    - Position the Gregorian dome in a structurally stable (stow)
>>    position.
>>    - Develop a plan for damage repair
>>
>>
>>
>> *There will be no observations at the Arecibo Observatory for at least
>> two weeks.*
>>
>>
>>
>> As soon as we have completed our initial assessment, we will share more
>> details regarding the cable failure and our plans going forward to address
>> this issue.
>>
>>
>>
>> We thank the AO community for their support at this time.
>>
>>
>>
>> Sincerely,
>>
>> Ray Lugo, Francisco Cordova, and the AO management team
>>
>>
>>
>

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