Dr. Atul Deep Profile

Dr. Atul Deep

at European Space Research and Techn Ctr

SPIE Involvement:

Author

Publications (14)

Proceedings Article | 26 August 2024 Poster + Paper

nAncestor: an artificial satellite-borne star for accurate frequency calibration of ground-based EPRV spectrographs

F. Pepe, M. Bugatti, A. Baur, J. Berney, E. Bozzo, C. Broeg, B. Crazzolara, A. Deep, F. Droz, J. Figueiredo, H. Haile, L. Jolissaint, S. Lecomte, J. Moerschell, Ch. Mordasini, E. Obrzud, C. Praplan, M. Sarajlic, B. Soja, M. Van den Broeck

Proceedings Volume 13100, 131005W (2024) https://doi.org/10.1117/12.3016547

KEYWORDS: Calibration, Spectrographs, Telescopes, Satellites, Planets, Satellite navigation systems, Exoplanets, Stars, Equipment, Laser frequency

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Proceedings Article | 8 August 2018 Paper

From a demonstration model to the flight model: AIV procedures and results for CHEOPS telescope

M. Bergomi, F. Biondi, D. Magrin, L. Marafatto, R. Ragazzoni, V. Viotto, M. Dima, D. Greggio, J. Farinato, L. Lessio, M. Munari, I. Pagano, E. Portaluri, M. Baroni, E. Battistelli, M. Marinai, A. Novi, M. Salatti, E. Tommasi, A. Deep, T. Beck, D. Piazza, W. Benz

Proceedings Volume 10698, 1069854 (2018) https://doi.org/10.1117/12.2313992

KEYWORDS: Mirrors, Optical alignment, Telescopes, Space telescopes, Wavefronts, Monochromatic aberrations, Modulation transfer functions, Point spread functions, Mechanics, Exoplanets

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Proceedings Article | 12 July 2018 Paper

A comparison between the opto-thermo-mechanical model and lab measurements for CHEOPS

Demetrio Magrin, Valentina Viotto, Thomas Beck, Giordano Bruno, Marco Baroni, Andrea Turella, Massimo Marinai, Maria Bergomi, Federico Biondi, Matteo Munari, Luca Marafatto, Jacopo Farinato, Davide Greggio, Marco Dima, Gaetano Scandariato, Isabella Pagano, Roberto Ragazzoni, Martin Rieder, Martin Diego Busch, Daniele Piazza, Timothy Bandy, Christopher Broeg, Andrea Fortier, Eduardo Hernandez, Virginie Cessa, Willy Benz, Giampaolo Piotto, Ester Giannuzzo, Michele Dami, Enrico Battistelli, Mario Salatti, Elisabetta Tommasi, Luigi De Angelis, Atul Deep, Ivan Ngan, Francesco Ratti, Lisa Gambicorti, Nicola Rando

Proceedings Volume 10698, 106983B (2018) https://doi.org/10.1117/12.2313406

KEYWORDS: Point spread functions, Telescopes, Interfaces, Mirrors, Data modeling, Mathematical modeling, Cryogenics, Spherical lenses, Sensors, Optical benches

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Proceedings Article | 20 November 2017 Open Access

Grating scattering BRDF and imaging performances: A test survey performed in the frame of the flex mission

Bernd Harnisch, Atul Deep, Ramon Vink, Claude Coatantiec

Proceedings Volume 10564, 105642P (2017) https://doi.org/10.1117/12.2309031

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Proceedings Article | 17 November 2017 Open Access

Overview on grating developments at ESA

B. Guldimann, A. Deep, R. Vink, B. Harnisch, S. Kraft, B. Sierk, G. Bazalgette, J.-L. Bézy

Proceedings Volume 10563, 1056314 (2017) https://doi.org/10.1117/12.2304094

KEYWORDS: Diffraction gratings, Manufacturing, Etching, Optical design, Photomasks, Silica, Near infrared, Optics manufacturing, Reflectivity, Astronomical imaging

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Proceedings Article | 25 September 2017 Open Access

Description and performance of the OGSE for VNIR absolute spectroradiometric calibration of MTG-I satellites

W. Glastre, J. Marque, E. Compain, A. Deep, Y. Durand, D. M. A. Aminou

Proceedings Volume 10562, 105624H (2017) https://doi.org/10.1117/12.2296058

KEYWORDS: Calibration, Spectral resolution, Satellites, Spectroscopy, Black bodies, Optical fibers, Infrared imaging, Near infrared, Signal to noise ratio, Signal attenuation

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The Meteosat Third Generation (MTG) Programme is being realised through the well-established and successful Cooperation between EUMETSAT and ESA. It will ensure the future continuity of MSG with the capabilities to enhance nowcasting, global and regional numerical weather prediction, climate and atmospheric chemistry monitoring data from Geostationary Orbit. This will be achieved through a series of 6 satellites named MTG-I and MTG-S to bring to the meteorological community continuous high spatial, spectral and temporal resolution observations and geophysical parameters of the Earth based on sensors from the geo-stationary orbit. In particular, the imagery mission MTG-I will bring an improved continuation of the MSG satellites series with the Flexible Combined Imager (FCI) a broad spectral range (from UV to LWIR) with better spatial and spectral resolutions. The FCI will be able to take high spatial resolution pictures of the Earth within 8 VNIR and 8 IR channels. As one of the mission of this instrument is to provide a quantitative analysis of atmosphere compounds, the absolute observed radiance needs to be known with a specified accuracy for VNIR as low as to 5% at k=3 over its full dynamic. While the FCI is regularly recalibrated every 6 month at equinoxes, it is however requiring initial ground calibration for the beginning of its mission. The Multi Optical Test Assembly (MOTA) is one of the Optical Ground Support Equipment (OGSE) dedicated to various missions necessary for the integration of the FCI . This equipment, provided by Bertin Technologies, will be delivered to TAS-F by the end of 2016. One of its mission, is the on-ground absolute calibration of VNIR channels. In order to handle this, the MOTA will be placed in front of the FCI under representative vacuum conditions and will be able to project a perfectly known, calibrated radiance level within the full dynamic of FCI instrument. The main difficulty is the very demanding calibration level with respect to primary standards down to 3% (k=3) coupled with constraining environment (vacuum), large dynamic (up to factor 100), high spectral resolution of 3 nm. Another main difficulty is to adapt the specific MOTA etendue (300 mm pupil, 9 mrad field) to available primary standards. Each of these constraints were addressed by specific tool design and production, a fine optimization of the calibration procedure with a large involvement of metrology laboratories. This paper introduces the missions of MTG satellites and particularly of the FCI instrument. The requirements regarding the absolute calibration over the different spectrometric channels and the global strategy to fulfill them are described. The MOTA architecture and calibration strategy are then discussed and final expected results are presented, showing state of the art performances.

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Proceedings Article | 25 September 2017 Open Access

Development of a calibration equipment for spectrometer qualification

C. Michel, B. Borguet, A. Boueé, P. Blain, A. Deep, V. Moreau, M. François, L. Maresi, A. Myszkowiak, M. Taccola, J. Versluys, Y. Stockman

Proceedings Volume 10562, 105624T (2017) https://doi.org/10.1117/12.2296101

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Proceedings Article | 14 October 2015 Paper

The ESA RADGLASS activity: a radiation study of non rad-hard glasses

Ilias Manolis, Jean-Loup Bézy, Alessandra Costantino, Ramon Vink, Atul Deep, Munadi Ahmad, Emmanuel Amorim, Micael Miranda, Roland Meynart

Proceedings Volume 9639, 96391N (2015) https://doi.org/10.1117/12.2193913

KEYWORDS: Glasses, Optical design, Refractive index, Absorption, Aerospace engineering, Ionizing radiation, Cerium, Sensors, Arsenic, Lead

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Proceedings Article | 3 September 2010 Paper

Alignment and integration of ASSIST: a test bench for VLT adaptive optics facility

Atul Deep, Robin Arsenault, Wilfried Boland, Bernard Delabre, Norbert Hubin, Paolo La Penna, Pierre-Yves Madec, Frank Molster, Remko Stuik, Sebastien Tordo, Emiel Wiegers

Proceedings Volume 7793, 77930L (2010) https://doi.org/10.1117/12.860491

KEYWORDS: Monochromatic aberrations, Adaptive optics, Mirrors, Wavefront sensors, Optical alignment, Telescopes, Stars, Tolerancing, Optical benches, Deformable mirrors

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Proceedings Article | 29 July 2010 Paper

Testing the VLT AO facility with ASSIST

Remko Stuik, Robin Arsenault, Wilfried Boland, Atul Deep, Bernard Delabre, Norbert Hubin, Johann Kolb, Paolo La Penna, Frank Molster, Emiel Wiegers

Proceedings Volume 7736, 77363M (2010) https://doi.org/10.1117/12.857791

KEYWORDS: Adaptive optics, Mirrors, Stars, Manufacturing, Turbulence, Telescopes, Optical components, Optical simulations, Beam splitters, Deformable mirrors

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Proceedings Article | 28 July 2010 Paper

Manufacturing of the ESO adaptive optics facility

R, Arsenault, P.-Y. Madec, N. Hubin, S. Stroebele, J. Paufique, E. Vernet, W. Hackenberg, J.-F. Pirard, L. Jochum, A. Glindemann, A. Jost, R. Conzelmann, M. Kiekebusch, S. Tordo, J.-L. Lizon, R. Donaldson, E. Fedrigo, C. Soenke, M. Duchateau, A. Bruton, B. Delabre, M. Downing, J. Reyes, J. Kolb, C. Bechet, M. Lelouarn, D. Bonaccini Calia, M. Quattri, I. Guidolin, B. Buzzoni, C. Dupuy, R. Guzman, M. Comin, A. Silber, J. Quentin, P. La Penna, A. Manescau, P. Jolley, V. Heinz, P. Duhoux, J. Argomedo, D. Gallieni, P. Lazzarini, R. Biasi, M. Andrighettoni, G. Angerer, D. Pescoller, R, Stuik, A. Deep

Proceedings Volume 7736, 77360L (2010) https://doi.org/10.1117/12.857973

KEYWORDS: Telescopes, Adaptive optics, Mirrors, Laser guide stars, Sensors, Optics manufacturing, Real-time computing, Manufacturing, Actuators, Cameras

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Proceedings Article | 15 July 2010 Open Access

MICADO: the E-ELT adaptive optics imaging camera

Richard Davies, N. Ageorges, L. Barl, L. Bedin, R. Bender, P. Bernardi, F. Chapron, Y. Clenet, A. Deep, E. Deul, M. Drost, F. Eisenhauer, R. Falomo, G. Fiorentino, N. Förster Schreiber, E. Gendron, R. Genzel, D. Gratadour, L. Greggio, F. Grupp, E. Held, T. Herbst, H.-J. Hess, Z. Hubert, K. Jahnke, K. Kuijken, D. Lutz, D. Magrin, B. Muschielok, R. Navarro, E. Noyola, T. Paumard, G. Piotto, R. Ragazzoni, A. Renzini, G. Rousset, H.-W. Rix, R. Saglia, L. Tacconi, M. Thiel, E. Tolstoy, S. Trippe, N. Tromp, E. Valentijn, G. Verdoes Kleijn, M. Wegner

Proceedings Volume 7735, 77352A (2010) https://doi.org/10.1117/12.856379

KEYWORDS: Adaptive optics, Calibration, Stars, Sensors, Mirrors, Point spread functions, Optical filters, Imaging spectroscopy, Cameras, Galactic astronomy

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Proceedings Article | 16 July 2008 Paper

ASSIST: the test setup for the VLT AO facility

Remko Stuik, Robin Arsenault, Ralf Conzelmann, Atul Deep, Bernard Delabre, Pascal Hallibert, Laurent Jolissaint, Norbert Hubin, Sarah Kendrew, Pierre-Yves Madec, Frank Molster, Jerome Paufique, Evert Pauwels, Stefan Stroebele, Emiel Wiegers

Proceedings Volume 7015, 70154F (2008) https://doi.org/10.1117/12.789225

KEYWORDS: Adaptive optics, Calibration, Telescopes, Stars, Mirrors, Turbulence, Deformable mirrors, Atmospheric optics, Device simulation, Laser guide stars

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Proceedings Article | 18 September 2007 Paper

ASSIST: development of a test-infrastructure for the VLT AO facility

Remko Stuik, Robin Arsenault, Atul Deep, Bernard Delabre, Pascal Hallibert, Laurent Jolissaint, Norbert Hubin, Sarah Kendrew, Pierre-Yves Madec, Jerome Paufique, Stefan Stroebele

Proceedings Volume 6691, 669104 (2007) https://doi.org/10.1117/12.736157

KEYWORDS: Adaptive optics, Mirrors, Telescopes, Calibration, Stars, Optical design, Turbulence, Image quality, Sodium, Optical components

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Showing 5 of 14 publications

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