Dr. Holger Drass Profile

Dr. Holger Drass

at AURA/NOIRlab

SPIE Involvement:

Author

Publications (16)

Proceedings Article | 11 September 2024 Presentation + Paper

Presentation + Paper

Rubin Observatory Simonyi Survey Telescope integrated mount performance

Brian Stalder, Freddy Munoz, Christian Aguilar, Claudio Araya, Karla Aubel, Jeffrey Barr, Anthony Borstad, Charles Claver, Andy Clements, Julio Constanzo, Giovanni Corvetto, Eric Coughlin, Felipe Daruich, Erik Dennihy, Holger Drass, Johnny Esteves, Juan Fábrega, Kevin Fanning, Peter Ferguson, Manuelangel Garcia Fernandez, Miguel Fernandez, Pelayo Fernandez Lobon, Merlin Fisher-Levine, Samuel Bellver Gamundi, Julen Garcia, Ivan Gonzalez, Ronald Harris, Hernan Herrera, Joshua Hoblitt, Alberto Izpizua, David Jimenez Mejias, Brian Johnson, Yijung Kang, Kshitija Kelkar, Craig Lage, Juan Lopez Toro, Guido Maulen, David Mills, Neill Mills, Doug Neill, Oscar Nunez, Ian Ordenes, Juan Orellana, HyeYun Park, Bruno Quint, Kevin Reil, Heinrich Reinking, Michael Reuter, Tiago Ribeiro, Rodrigo Rojas, Sandra Romero, Francisco Manuel Romero Casas, David Sanmartim, Clare Saunders, Bill Schoening, Jacques Sebag, Eduardo Serrano, Adrian Shestakov, Alysha Shugart, Christian Silva, Kevin Siruno, Ioana Sotuela, Anthony Tache, Diego Tapia, Sandrine Thomas, Roberto Tighe, Te-Wei Tsai, Elana Urbach, Luis Vergara, Christopher Walter

Proceedings Volume 13094, 1309409 (2024) https://doi.org/10.1117/12.3019266

KEYWORDS: Telescopes, Mirrors, Observatories

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Proceedings Article | 11 September 2024 Presentation + Paper

Presentation + Paper

The Vera C. Rubin's M2 support system integration and verification at the TMA

Gabriele Rodeghiero, Luca Rosignoli, Rodolfo Canestrari, Enrico Giro, Pablo Zorzi, Te-Wei Tsai, Holger Drass, Yijung Kang, Roberto Tighe, Doug Neil, Franco Colleoni, Felipe Daruich, Mostafa Lutfi, Guillem Megias Homar, Bruno Quint, Tiago Ribeiro, Austin Roberts, Jacques Sebag, Brian Stalder, Kevin Siruno, Malhar Sonaniskar, Kevin Fanning, Peter Ferguson, Petr Kubánek, Sandrine Thomas, Chuck Claver, Andy Clemens, Kevin Reil, Freddy Muñoz Arancibia, John Andrew, Ian Ordenez Jimenez, Robinson Godoy, Mario Rivera, HyeYun Park, David Sanmartim, Paulina Venegas, Karla Aubel, Alysha Shugart, Massimo Brescia, David Cabrera, David Jimenez, Carlos Morales, Angelo Fausti, Chuck Gessner, Russel Owen

Proceedings Volume 13094, 130942D (2024) https://doi.org/10.1117/12.3019210

KEYWORDS: Actuators, Mirrors, Telescopes, Glasses, Safety, Observatories, Control systems, Baffles, Cameras, Interfaces

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The M2 secondary mirror of the Vera C. Rubin Observatory, scheduled to be commissioned on-sky in 2024, will be the first active secondary mirror of 3.5m diameter in operation. Its substantial dimensions and advanced functionalities place it in league with the secondary mirrors of the upcoming 30m class telescopes. Characterizing its performance serves as a critical step towards comprehending and controlling the optics of the next generation of Extremely Large Telescopes (ELTs). This study focuses on testing and validating the M2 cell in the Observatory’s integration hall and at the Telescope Mount Assembly (TMA). We also report on the integration steps of the M2 cell onto the TMA itself, including installing the light baffle. During the testing campaign, the M2 cell is equipped with an aluminum mirror surrogate for safety reasons regarding the glass mirror. To ensure integrity when the thin glass mirror (10cm) is installed onto the telescope, the M2 support system must be actively controlled during any M2 cell movement. This prompted the development of a dedicated control system to enable closed loop mode for transporting the M2 cell with the glass mirror from the integration hall to the telescope. The tests in the integration hall were conducted with the M2 cell mounted on a rotating cart, allowing different orientations with respect to gravity as it will experience on the telescope. Upon reaching the telescope, static and dynamic tests are conducted at progressively higher telescope performance, increasing slewing speed, acceleration, and jerk. A significant novelty introduced by Rubin to astronomical instrumentation is the Verification & Validation architecture as part of the model-based Systems Engineering approach where requirements, test procedures and executions are merged into an interlaced and dynamic flow. This report presents the experimental results from the distinct test campaigns covering a wide range of M2 cell functionalities. These include characterization of actuator behavior in terms of maximum stroke and force limits, evaluation of closed-loop (active) and open-loop (passive) support system operation for the M2, system settling time and Force Balance response to different slewing speeds of the telescope.

Proceedings Article | 11 September 2024 Presentation + Paper

Presentation + Paper

Rubin M1M3 support system dynamic performance

Bruno Quint, Felipe Daruich, Petr Kubánek, Douglas Neill, Guillem Megias, Adrian Shestakov, Alysha Shugart, Andrea Jeremie, Benjamin Levine, Brian Stalder, Craig Lage, David Sanmartim, Dominique Boutigny, Elana Urbach, Erik Dennihy, Freddy Muñoz Arancibia, Holger Drass, HyeYun Park, Ignacio Sevilla-Noarbe, Ioana Sotuela, Jacques Sebag, Joaquín Hernández, Jeffrey Carlin, Karla Aubel, Kevin Fanning, Kevin Reil, Laura Toribio San Cipriano, Merlin Fisher-Levine, Peter Ferguson, Roberto Tighe, Sandrine Thomas, Tiago Ribeiro, Yijung Kang

Proceedings Volume 13094, 1309429 (2024) https://doi.org/10.1117/12.3019268

KEYWORDS: Mirrors, Telescopes, Actuators, Safety, Glasses, Accelerometers, Observatories, Control systems, Dynamical systems

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Proceedings Article | 26 August 2024 Paper

Paper

Rubin Observatory technical challenges and resolutions

Jacques Sebag, Douglas Neill, Christian Aguilar, John Andrew, Claudio Araya, Jeffrey Barr, Rodolfo Canestrari, Andy Clements, Franco Colleoni, Julio Constanzo, Felipe Daruich, Holger Drass, Juan Fábrega, Enrico Giro, Robinson Godoy, Hernan Herrera, David Jimenez Mejias, Victor Krabbendam, Petr Kubanek, Craig Lage, Juan Lopez, Luis Matemala, Guido Maulen, Gonzalo Meneses, Dave Mills, Freddy Munoz, Oscar Nunez, Ian Ordenes, Juan Orellana, Roberto Olivares, Maria Fernanda Parra, Claudio Pasten, Bruno Quint, Jose Miguel Quintero, Mario Rivera, Gabriele Rodeghiero, Luca Rosignoli, Rodrigo Rojas, Sandra Romero, Edgard Sepulveda, Eduardo Serrano, Cristian Silva, Brian Stalder, Diego Tapia, Sandrine Thomas, Roberto Tighe, Te-Wei Tsai, Luis Vergara, Tomislav Vucina, Pablo Zorzi

Proceedings Volume 13100, 131004Z (2024) https://doi.org/10.1117/12.3018152

KEYWORDS: Laser tracking, Telescopes, Mirrors, Cameras, Observatories, Capacitors, Control systems, Mirror surfaces, Coating, Large Synoptic Survey Telescope

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Proceedings Article | 24 August 2024 Presentation

Presentation

Rubin systems engineering processes for image quality tracking, CMMS selection, FRACAS handling, and hazard mitigation analysis

Holger Drass, Cristian Silva, Charles Claver, David Cabrera, Diane Hascall, Eduardo Serrano, Enrico Giro, Gabriele Rodeghiero, Jeff Barr, Kevin Siruno, Luca Rosignoli, Matthew Rumore, Mostafa Lutfi, Pablo Zorzi, Rodolfo Canestrari, Sandrine Thomas, Wouter van Reeven

Proceedings Volume 13099, 130990M (2024) https://doi.org/10.1117/12.3019106

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Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

Rubin Observatory hexapods: issues and upgrades

Douglas R. Neill, Brian Johnson, Myung Cho, Felipe Daruich, Holger Drass, Mostafa Lutfi, Kevin Sirano, Roberto Tighe, Te-Wei Tsai, Oliver Wiecha

Proceedings Volume 12188, 1218817 (2022) https://doi.org/10.1117/12.2628999

KEYWORDS: Actuators, Telescopes

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Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

Rubin Observatory Commissioning Camera: summit integration

Brian Stalder, Kevin Reil, Christian Aguilar, Claudio Araya, Anthony Borstad, Boyd Bowdish, Myung Cho, Stephen Cisneros, Chuck Claver, Julio Constanzo, Giovanni Corvetto, Holger Drass, Frossie Economou, Erik Dennihy, Alan Eisner, Juan Fabrega, Angelo Fausti Neto, Merlin Fisher-Levine, Ivan Gonzalez, Ronald Harris, Diane Hascall, Justine Haupt, Josh Hoblitt, James Howard, Mike Huffer, Tim Jenness, David Jiménez Mejías, Brian Johnson, Tony Johnson, K. Simon Krughoff, Craig Lage, Travis Lange, Ming Liang, Juan Lopez, Margaux Lopez, Robert Lupton, Guido Maulen, Felipe Menanteau, Neill Mills, Glenn Morris, Freddy Munoz, Homer Neal, Douglas Neill, Scott Newbry, Andrei Nomerotski, Dmitry Onoprienko, Ian Ordenes, Juan Orellana, Shawn Osier, HyeYun Park, Steve Pietrowicz, Andres Plazas, Gary Poczulp, Brian Qiu, Bruno Quint, Heinrich Reinking, Michael Reuter, Tiago Ribeiro, Rodrigo Rojas, Sandra Romero, Rafe Schindler, Bill Schoening, Jacques Sebag, Alysha Shugart, Cristian Silva, Ioana Sotuela, Anthony Tache, Diego Tapia, John Thayer, Sandrine Thomas, Roberto Tighe, Tei-Wei Tsai, Max Turri, Tony Tyson, Luis Vergara, Christopher Walter, Oliver Wiecha, Van Xiong

Proceedings Volume 12184, 121840J (2022) https://doi.org/10.1117/12.2630184

KEYWORDS: Cameras, Telescopes, Imaging systems, Observatories, Interfaces, Control systems, Safety, Electronics, Device simulation

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Proceedings Article | 29 August 2022 Presentation

Presentation

Overview and status of Vera C Rubin Observatory system integration, test and commissioning

Charles Claver, Sandrine Thomas, Kevin Reil, Keith Bechtol, Holger Drass, Leanne Guy, Patrick Ingraham, Robert Lupton, Austin Roberts, Brian Stalder

Proceedings Volume 12187, 121870G (2022) https://doi.org/10.1117/12.2630643

KEYWORDS: Observatories, System integration, Imaging systems, Data processing, Data acquisition, Control systems, Cameras, Telescopes, Image processing, Software development

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

ELT-HIRES, the high resolution spectrograph for the ELT: the Phase A study and the path to construction

A. Marconi , M. Abreu, V. Adibekyan, M. Aliverti, C. Allende Prieto, P. Amado, M. Amate, E. Artigau, S. Augusto, S. Barros, S. Becerril, B. Benneke, E. Bergin, P. Berio, N. Bezawada, I. Boisse, X. Bonfils, F. Bouchy, C. Broeg, A. Cabral, R. Calvo-Ortega, B. Canto Martins, B. Chazelas, A. Chiavassa, L. Christensen, R. Cirami, I. Coretti, S. Covino, G. Cresci, S. Cristiani, V. Cunha Parro, G. Cupani, V. D'Odorico, I. de Castro Leão, J. de Medeiros, M. de Souza, P. Di Marcantonio, I. Di Varano, R. Doyon, H. Drass, P. Figueira, A. Fragoso, J. Fynbo, E. Gallo, M. Genoni, J. González Hernández, R. Gratton, M. Haehnelt, C. Hansen, J. Hlavacek-Larrondo, I. Hughes, P. Huke, A. Humphrey, H. Kjeldsen, A. Korn, D. Kouach, M. Landoni, J. Liske, C. Lovis, D. Lunney, R. Maiolino, L. Malo, T. Marquart, C. J. A. P. Martins, P. Maslowski, E. Mason, G. Micela, P. Molaro, J. Monnier, M. Monteiro, C. Mordasini, T. Morris, A. Mucciarelli, G. Murray, A. Niedzielski, E. Niemczura, B. Nisini, N. Nunes, E. Oliva, L. Origlia, E. Pallé, G. Pariani, P. Parr-Burman, L. Pasquini, J. Peñate, F. Pepe, G. Pietrzynski, E. Pinna, N. Piskunov, A. Pollo, J. Rasilla, R. Rebolo, P. Rees, A. Reiners, M. Riva, D. Romano, S. Rousseau, N. Sanna, M. Sarajlic, T.-C. Shen, F. Sortino, D. Sosnowska, S. Sousa, E. Stempels, K. Strassmeier, F. Tenegi, A. Tozzi, S. Udry, L. Valenziano, L. Vanzi, M. Weber, M. Woche, M. Xompero, E. Zackrisson, M. R. Zapatero Osorio

Proceedings Volume 11447, 1144726 (2020) https://doi.org/10.1117/12.2560489

KEYWORDS: Spectrographs, Large telescopes, Telescopes, Exoplanets, Atmospheric sciences, Atmospheric sensing, Spectral resolution

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Proceedings Article | 13 July 2018 Presentation + Paper

Presentation + Paper

Rising MOONS: an update on the VLT’s next multi-object spectrograph as it begins to grow

William Taylor, Michele Cirasuolo, Jose Afonso, Marcella Carollo, Chris Evans, Hector Flores, Roberto Maiolino, Stephane Paltani, Leonardo Vanzi, Manuel Abreu, Jean-Phillipe Amans, David Atkinson, Joe Barrett, Steven Beard, Celementine Béchet, Martin Black, David Boettger, Saskia Brierley, David Buscher, Alexandre Cabral, William Cochrane, João Coelho, Miriam Colling, Ralf Conzelmann, Francesco Dalessio, Louise Dauvin, George Davidson, Holger Drass, Rolando Dünner, Alasdair Fairley, Giles Fasola, Debora Ferruzzi, Martin Fisher, Mauricio Flores, Bianca Garilli, Julien Gaudemard, Oscar Gonzalez, Isabelle Guinouard, Pablo Gutierrez, Peter Hammersley, Régis Haigron, Chris Haniff, Mahmoud Hayati, Derek Ives, Olaf Iwert, Philippe Laporte, David Lee, Gianluca Li Causi, Yerko Luco, Alastair Macleod, Vincenzo Mainieri, Charles Maire, Basile-Thierry Melse, Johannes Nix, Ernesto Oliva, António Oliveira, Livia Origlia, Ian Parry, Fernando Pedichini, Roberto Piazzesi, Phil Rees, Florent Reix, Myriam Rodrigues, Felipe Rojas, Stefano Rota, Frédéric Royer, Pedro Santos, Robin Schnell, Tzu-Chiang Shen, Michael Sordet, Jonathan Strachan, Xiaowei Sun, Graham Tait, Miguel Torres, Andre Tozzi, Simon Tulloch, Álvaro Valenzuela Navarro, Lauren Von Dran, Chris Waring, Stephen Watson, Brian Woodward, Yanbin Yang

Proceedings Volume 10702, 107021G (2018) https://doi.org/10.1117/12.2313403

KEYWORDS: Cameras, Optical fibers, Telescopes, Sensors, Metrology, Calibration, Spectrographs, Galactic astronomy, Astronomical imaging, Stars

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Proceedings Article | 6 July 2018 Presentation + Paper

Presentation + Paper

ELT-HIRES, the high resolution spectrograph for the ELT: results from the Phase A study

A. Marconi, C. Allende Prieto, P. Amado, M. Amate, S. Augusto, S. Becerril, N. Bezawada, I. Boisse, F. Bouchy, A. Cabral, B. Chazelas, R. Cirami, I. Coretti, S. Cristiani, G. Cupani, I. de Castro Leão, J. R. de Medeiros, M. A. F. de Souza, P. Di Marcantonio, I. Di Varano, V. D'Odorico, H. Drass, P. Figueira, A. B. Fragoso, J. P. U. Fynbo, M. Genoni, J. I. González Hernández, M. Haehnelt, I. Hughes, P. Huke, H. Kjeldsen, A. Korn, M. Landoni, J. Liske, C. Lovis, R. Maiolino , T. Marquart, C. J. A. P. Martins, E. Mason, M. Monteiro, T. Morris, G. Murray, A. Niedzielski, E. Oliva, L. Origlia, E. Pallé, P. Parr-Burman, V. C. Parro, F. Pepe, N. Piskunov, J. L. Rasilla, P. Rees, R. Rebolo, M. Riva, S. Rousseau, N. Sanna, N. Santos, T.-C. Shen, F. Sortino, D. Sosnowska, S. Sousa, E. Stempels, K. Strassmeier, F. Tenegi, A. Tozzi, S. Udry, L. Valenziano, L. Vanzi, M. Weber, M. Woche, M. Xompero, E. Zackrisson

Proceedings Volume 10702, 107021Y (2018) https://doi.org/10.1117/12.2311664

KEYWORDS: Spectrographs, Stars, Physics, Galactic astronomy, Astronomy, Exoplanets, Spectral resolution, Calibration, Absorption, Spectroscopy

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Proceedings Article | 6 July 2018 Paper

Paper

ELT high resolution spectrograph: phase-A software architecture study

P. Di Marcantonio, R. Cirami, G. Cupani, I. Di Varano, H. Drass, P. Figueira, M. A. F. de Souza , M. Genoni, O. Gonzalez, M. Landoni, G. Li Causi, T. Marquart, E. Mason, M. Monteiro, V. C. Parro, S. Augusto, S. Rousseau, N. Sanna, T. Shen, D. Sosnowska, S. Sousa, M. Xompero, I. Boisse, A. Marconi

Proceedings Volume 10707, 107071T (2018) https://doi.org/10.1117/12.2311296

KEYWORDS: Spectrographs, Cameras, Control systems, Calibration, Computer architecture, Device simulation, Sensors, Polarimetry, Telescopes, Data acquisition

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Proceedings Article | 20 February 2017 Paper

Paper

Conceptual design for an AIUC multi-purpose spectrograph camera using DMD technology

S. Rukdee, F. Bauer, H. Drass, L. Vanzi, A. Jordan, F. Barrientos

Proceedings Volume 10117, 101170J (2017) https://doi.org/10.1117/12.2251557

KEYWORDS: Spectrographs, Digital micromirror devices, Cameras, Astronomical imaging, Spectroscopes, Telescopes, Astronomical instrumentation, Astronomy, Spectral resolution, Image quality, Imaging systems, Mirrors, Charge-coupled devices

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Proceedings Article | 9 August 2016 Paper

Paper

Development of the fibre positioning unit of MOONS

David Montgomery, David Atkinson, Stephen Beard, William Cochrane, Holger Drass, Isabelle Guinouard, David Lee, William Taylor, Phil Rees, Steve Watson

Proceedings Volume 9908, 990895 (2016) https://doi.org/10.1117/12.2234183

KEYWORDS: Spectrographs, Astronomical imaging, Prototyping, Switches, Electronics, Computer programming, Diodes, Metrology, Interfaces, Signal detection

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Proceedings Article | 9 August 2016 Paper

Paper

Implementation and performance of the metrology system for the multi-object optical and near-infrared spectrograph MOONS

Holger Drass, Leonardo Vanzi, Miguel Torres-Torriti, Rolando Dünner , Tzu-Chiang Shen, Francisco Belmar, Lousie Dauvin, Tomás Staig, Jonathan Antognini, Mauricio Flores, Yerko Luco, Clémentine Béchet, David Boettger, Steven Beard, David Montgomery, Stephen Watson, Alexandre Cabral, Mahmoud Hayati, Manuel Abreu, Phil Rees, Michele Cirasuolo, William Taylor, Alasdair Fairley

Proceedings Volume 9908, 99088E (2016) https://doi.org/10.1117/12.2232654

KEYWORDS: Metrology, Spectrographs, Cameras, Astronomical imaging, Time metrology, Calibration, Electroluminescent displays, Target detection, Staring arrays, Telescopes

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Proceedings Article | 18 July 2014 Paper

Paper

ACS (Alma Common Software) operating a set of robotic telescopes

C. Westhues, M. Ramolla, R. Lemke, M. Haas, H. Drass, R. Chini

Proceedings Volume 9152, 915210 (2014) https://doi.org/10.1117/12.2054758

KEYWORDS: Telescopes, Cameras, Control systems, Robotics, Observatories, IRIS Consortium, Infrared telescopes, Lanthanum, Computer programming, Stars

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Showing 5 of 16 publications

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