Dr. Michael Dumke Profile

Dr. Michael Dumke

Operations Astronomer at European Southern Observatory

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Publications (6)

Proceedings Article | 10 July 2018 Presentation + Paper

APEX beyond 2016: the evolution of an experiment into an efficient and productive Submillimeter Wavelength Observatory

Thomas Klein, Francisco Montenegro-Montes, Miroslaw Ciechanowicz, Claudio Agurto, Juan-Pablo Araneda, Oriel Arriagada, Francisco Azagra, Michael Cantzler, Mauricio Cárdenas, Patricio Caro, Michael Dumke, Edouard González, Christian Herrera, Felipe Mac-Auliffe, Rodrigo Parra, Juan Pablo Pérez-Beaupuits, Jorge Ramírez, Jorge Santana, Karl Torstensson, Paulina Venegas

Proceedings Volume 10704, 107041V (2018) https://doi.org/10.1117/12.2312687

KEYWORDS: Telescopes, Antennas, Control systems, Observatories, Sun, Failure analysis, Photonic integrated circuits, Receivers, Holography, Space telescopes

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The Atacama Pathfinder EXperiment (APEX) operates a 12m submillimeter wavelength telescope in the high Andes in Chile at 5107 m above sea level since 2006¹. Several steps have been taken to improve the operation efficiency of the facility in the given harsh environmental conditions². The developments in remote control and -sensing allowed in 2017 for the transition to a remote science operations scheme, observing 24/7 from the basecamp control center in San Pedro de Atacama. Also engineering and maintenance is in the transition phase to a similar scheme to minimize presence and activities at the very high site. Instrument control servers allowing remote operation even of heterodyne THz instrumentation, with no compromise on instrument performance, had been developed and proven to reliably work³. The transition to full remote science operations required major hardware upgrades on the antenna drive system and a failsafe remote-control system to ensure the safety of the antenna, the Sun Avoidance System (SAS). We report on the layout, the implementation and on the experience of the first year of this new operations model started in April 2017.

The engineering tasks also are in a transition phase to a scheme that minimizes the presence at the antenna. Daily engineering work at the high site for preventive and corrective maintenance can be reduced when all critical hardware systems are integrated in a remote monitoring and control system. We have started with this in 2015 and have stepwise introduced this new scheme. This required the introduction of redundancies of systems as well as the extension of sensing points and remote-control interfaces, throughout all levels in the project breakdown structure of the telescope and its auxiliary systems. We present examples of theses implemented systems and discuss the concept of redundancies.

The APEX observatory is the smallest ESO site in Chile, incorporated as a department of LPO, the ESO La Silla – Paranal Observatory, within the directorate of Operations (DoO). The work presented will attempt an outline of approaches that can be applied to telescopes exposed to similar environmental conditions as well as to larger and distributed operations such as envisaged for the Paranal Observatory extended by the ELT on Cerro Armazones.

Proceedings Article | 24 September 2012 Paper

First results of the polarimeter for the Large APEX Bolometer Camera (LABOCA)

Giorgio Siringo, Attila Kovács, Ernst Kreysa, Frederic Schuller, Axel Weiss, Rolf Guesten, Talayeh Hezareh, Karl Menten, Helmut Wiesemeyer, Michael Dumke, Francisco Montenegro, Rodrigo Parra

Proceedings Volume 8452, 845206 (2012) https://doi.org/10.1117/12.925697

KEYWORDS: Polarization, Bolometers, Polarimetry, Modulation, Telescopes, Mirrors, Modulators, Cameras, Calibration, Dielectric polarization

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Proceedings Article | 30 July 2010 Paper

The APEX calibration plan: goals, implementation, and achievements

Michael Dumke, Felipe Mac-Auliffe

Proceedings Volume 7737, 77371J (2010) https://doi.org/10.1117/12.858020

KEYWORDS: Calibration, Receivers, Telescopes, Bolometers, Opacity, Astronomy, Atmospheric sciences, Absorption, Atmospheric modeling, Data analysis

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Proceedings Article | 30 July 2010 Paper

APEX: five years of operations

Andreas Lundgren, David Rabanus, Rolf Güsten, Karl Menten, Tim de Zeeuw, Hans Olofsson, Andreas Kaufer, Lars-Åke Nyman, Per Bergman, Carlos de Breuck, Friedrich Wyrowski, Claudio Agurto, Francisco Azagra, Michael Dumke, Felipe Mac-Auliffe, Mauricio Martinez, Francisco Montenegro, Dirk Muders, Vincent Reveret, Christophe Risacher, Rodrigo Parra, Giorgio Siringo, Gundolf Wieching

Proceedings Volume 7737, 773708 (2010) https://doi.org/10.1117/12.856985

KEYWORDS: Receivers, Telescopes, Heterodyning, Bolometers, Antennas, Space telescopes, Observatories, Astronomy, Holography, Humidity

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Proceedings Article | 12 July 2008 Paper

Service observing management at the APEX telescope

Michael Dumke

Proceedings Volume 7016, 70161R (2008) https://doi.org/10.1117/12.789547

KEYWORDS: Telescopes, Databases, Receivers, Observatories, Data archive systems, Astronomy, Astronomical telescopes, Heterodyning, Control systems, Bolometers

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Proceedings Article | 22 June 2006 Paper

APEX: the Atacama Pathfinder EXperiment

R. Güsten, R. Booth, C. Cesarsky, K. Menten, C. Agurto, M. Anciaux, F. Azagra, V. Belitsky, A. Belloche, P. Bergman, C. De Breuck, C. Comito, M. Dumke, C. Duran, W. Esch, J. Fluxa, A. Greve, H. Hafok, W. Häupl, L. Helldner, A. Henseler, S. Heyminck, L. Johansson, C. Kasemann, B. Klein, A. Korn, E. Kreysa, R. Kurz, I. Lapkin, S. Leurini, D. Lis, A. Lundgren, F. Mac-Auliffe, M. Martinez, J. Melnick, D. Morris, D. Muders, L. Nyman, M. Olberg, R. Olivares, M. Pantaleev, N. Patel, K. Pausch, S. Philipp, S. Philipps, T. Sridharan, E. Polehampton, V. Reveret, C. Risacher, M. Roa, P. Sauer, P. Schilke, J. Santana, G. Schneider, J. Sepulveda, G. Siringo, J. Spyromilio, K.-H. Stenvers, F. van der Tak, D. Torres, L. Vanzi, V. Vassilev, A. Weiss, K. Willmeroth, A. Wunsch, F. Wyrowski

Proceedings Volume 6267, 626714 (2006) https://doi.org/10.1117/12.670798

KEYWORDS: Telescopes, Receivers, Reflectors, Antennas, Bolometers, Space telescopes, Stars, Calibration, Heterodyning, Mirrors

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Showing 5 of 6 publications

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