Work Begins on Cleaning up Arecibo. The job Could Cost $50 Million – Universe Today

The collapse of Arecibo’s radio telescope was a devastating blow to the radio astronomy group.  On December 1st, the suspended instrument platform got here crashing down, destroying a big a part of the receiver dish and the towers supporting the platform, in addition to inflicting minor harm to some outlying buildings.  Now the National Science Foundation (NSF), the federal government company answerable for working Arecibo is beginning to decide up the items to determine what’s subsequent for the positioning, as they detailed in a short report back to Congress just lately.

There had been a number of main takeaways from the report.  The most essential is that nobody was harm in the course of the collapse.  This is largely due to a number of engineering assessments after a preliminary cable collapse in November that strongly recommended nobody journey close to the 305m dish given then imminent likelihood of collapse. 

Video exhibiting the collapse of the instrument platform at Arecibo.Credit: NSFThe engineering group had recommended a “controlled decommissioning” – a euphemism for blowing up the telescope’s parts in a manner that allowed engineers to reduce threat to surrounding amenities.  Unfortunately they weren’t capable of perform that plan earlier than the platform collapsed of its personal volition, proving their principle about it being unstable.  The report discovered that the harm solely occurred within the exclusion space, and since noone had been allowed in that zone, there was no human price to the collapse. 
A second attention-grabbing word within the report handled clear up.  Currently, the estimated price was someplace between $30-50 million. Work shall be unfold over the following two years and can focus on particles elimination and limiting environmental affect.  Efforts have already began, as evidenced by a picture NSF launched as a part of the report that reveals a number of the particles cleared from the primary dish.
Image of the destroyed 305m telescope with some cleanup began.Credit: NSFDetails of the following steps had been additionally outlined within the report.  It offered a breakdown of what was broken and what was working on the Arecibo facility, which was extra than simply the well-known 305 meter dish.  The web site nonetheless comprises a LIDAR system that’s operational however nonetheless wants restore from Hurricane Maria that struck the island virtually four years in the past.  Additional working components embody a pair of 12 m receivers, a passive optics system, and a customer middle, which the NSF plans to proceed working as quickly as the positioning is deemed protected.
NSF, together with its sub-contracted analysis establishment, the University of Central Florida, who is definitely answerable for working the positioning, plan to take care of a presence there, and probably to leverage the opposite, largely undamaged infrastructure. Its nonetheless unclear what, if any, science would possibly happen on the facility, however the NSF reiterated its dedication to the work that was accomplished at Arecibo and to the group in Puerto Rico surrounding the power.  With luck, possibly there’ll some additional science accomplished on the web site within the not too distant future.
Learn More:NSF – NSF begins planning for decommissioning of Arecibo Observatory’s 305-meter telescope as a consequence of security concernsNSF – Report on the Arecibo ObservatoryUT – Now you’ll be able to Watch Actual Video of Arecibo Collapsing…If You DareUT – Arecibo’s Damage is so Serious and Dangerous, They’re Just Going to Scrap the Observatory Entirely
Lead Image:Image of the 305 meter telescope at Arecibo earlier than the ultimate collapse of the instrument platform.Credit: University of Central Florida
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