# The ESO's Extremely Large Telescope Working Groups **Authors:** Paolo Padovani (ESO), Michele Cirasuolo (ESO), Remco van der Burg,, Faustine Cantalloube, Elizabeth George, Markus Kasper, Kieran Leschinski,, Carlos Martins, Julien Milli, Sabine M\"ohler, Mark Neeser, Benoit Neichel,, Angel Otarola, Rub\'en S\'anchez-Janssen, Benoit Serra, Alain Smette, Elena, Valenti, Christophe Verinaud, Jo\"el Vernet, Olivier Absil, Guido Agapito,, Morten Andersen, Carmelo Arcidiacono, Matej Arko, Pierre Baudoz, Olivier, Beltramo-Martin, Enrico Biancalani, Thomas Bierwirth, Leonard Burtscher,, Giulia Carl\`a, Julio A. Castro-Almaz\'an, Anne-Laure Cheffot, Lodovico, Coccato, Carlos Correia, Romain Fetick, Giuliana Fiorentino, Thierry Fusco,, Bego\~na Garc\'ia-Lorenzo, Nicola Gentile Fusillo, Oscar Gonzalez, Andrea, Grazian, Marco Gullieuszik, Olivier Hainaut, Valentin Ivanov, Melanie, Kaasinen, Darshan Kaddad, Tomasz Kami\'nski, Wolfgang Kausch, Florian Kerber,, Stefan Kimeswenger, Rosita Kokotanekova, Arseniy Kuznetsov, Alexis Lau, Miska, Le Louarn, Fr\'ed\'eric Lemmel, Jochen Liske, Gaspare Lo Curto, David, Lucsanyi, Lars Lundin, Stefan Noll, Sylvain Oberti, James Osborn, Elena, Masciadri, Dinko Milakovi\'c, Michael T. Murphy, Fernando Pedichini, Miguel, Pereira Santaella, Roberto Piazzesi, Javier Piqueras L\'opez, C\'edric, Plantet, Thibaut Prod'homme, Norbert Przybilla, Mathieu Puech, Derryck T., Reid, Ansgar Reiners, Rutger Rijnenberg, Myriam Rodrigues, Fabio Rossi,, Laurence Routledge, Hans Smit, Mathias Tecza, Niranjan Thatte, Roy van, Boekel, Aprajita Verma, Arthur Vigan arXiv: 2302.14375 ยท 2023-03-01 ## TL;DR The paper discusses the development of ESO's Extremely Large Telescope, highlighting the formation of thirteen working groups to coordinate science operations, calibration, and community efforts for this groundbreaking 39-meter telescope. ## Contribution It details the goals and achievements of the working groups that support the development and operation of the ESO's Extremely Large Telescope. ## Key findings - Establishment of thirteen specialized working groups. - Achievements in science operations and calibration planning. - Coordination efforts between ESO, instrument consortia, and the community. ## Abstract Since 2005 ESO has been working with its community and industry to develop an extremely large optical/infrared telescope. ESO's Extremely Large Telescope, or ELT for short, is a revolutionary ground-based telescope that will have a 39-metre main mirror and will be the largest visible and infrared light telescope in the world. To address specific topics that are needed for the science operations and calibrations of the telescope, thirteen specific working groups were created to coordinate the effort between ESO, the instrument consortia, and the wider community. We describe here the goals of these working groups as well as their achievements so far. --- Source: https://tomesphere.com/paper/2302.14375