The ESO's ELT construction status

Over the last few years, the ESO’s ELT has made tremendous progress in defining and procuring the many components of one of the future world largest optical-infrared telescopes. More than two dozen large scale contracts have been placed to industry to design and manufacture several items, among them the dome, the telescope structure, the mirrors and their supports, the control system, the infrastructure, and more. In addition, four agreements were signed with consortia of astronomical research institutes to develop the first suite of scientific instruments. As of today, this represents a financial commitment of more than 90% of the total ESO material budget for the ELT.

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[7]  P. La Penna,et al.  Extremely Large Telescope Prefocal Station A system concept , 2018, Astronomical Telescopes + Instrumentation.

[8]  Luigi Andolfato,et al.  Designing and managing software interfaces for the ELT , 2018, Astronomical Telescopes + Instrumentation.

[9]  Luigi Andolfato,et al.  ESO ELT M1 local control system software design and development status (Conference Presentation) , 2018 .

[10]  Matteo Accardo,et al.  Cryogenic cooling systems for the ELT instruments , 2018, Astronomical Telescopes + Instrumentation.