Dr. Giorgio Bagnasco Profile

Dr. Giorgio Bagnasco

Instrument Manager & System Engineer at European Space Research and Technology Ctr.

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Publications (16)

Proceedings Article | 11 June 2021 Open Access

Sentinel-4: a geostationary imaging UVN spectrometer for air quality monitoring: integration and alignment of the instrument proto flight model

Pierangelo Marenaci, Luis Estares Otal, Ellart Meijer, Jean-Francois Pittet, Stefan Riedl, Sai Shilpa Suram, Christoph Ehrhart, Grégory Bazalgette Courrèges-Lacoste, Gerard Bulsa, Arnaud Pasquet, Giorgio Bagnasco

Proceedings Volume 11852, 1185267 (2021) https://doi.org/10.1117/12.2600228

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Sentinel-4 is an imaging UVN (UV-VIS-NIR) spectrometer, developed by Airbus Defence and Space GmbH under ESA contract in the frame of the joint EU/ESA COPERNICUS program. The mission objective is the operational monitoring of trace gas concentrations for atmospheric chemistry and climate over Europe. Sentinel-4 will provide accurate measurements of key atmospheric constituents such as ozone, nitrogen dioxide, sulfur dioxide, methane, and aerosol properties. The instrument is a hyperspectral imager. It is composed of two imaging spectrometers covering the spectral ranges of 305 – 500 nm and 750 – 775 nm and a telescope which projects an image of the Earth onto the slits of the spectrometers. The instrument will be placed in a geostationary orbit, and a 3D spectral-spatial data-cube will be acquired thanks to the mirror scanning in East-West direction. The Telescope Spectrograph Assembly (TSA) represents the core of the optical system inside the Optical Instrument Module (OIM). It is composed of one common Telescope, two Spectrographs and two Focal Plane Assemblies integrated and aligned into a three-dimensional supporting structure. The TSA is later integrated into the main instrument structure which already includes the Scan Mirror Unit, Calibration Assembly and Front Baffle; thus completing the full optical chain. This paper gives an overview of the TSA integration and alignment activities for the Proto Flight Model (PFM) performed at the Airbus premises in Ottobrunn, Germany. It describes the alignment philosophy developed to meet the challenging optical requirements, including for example, the spatial co-registration between the two spectrometers and the spatial sampling distance on ground, after the transition from ambient laboratory conditions to the instrument operating conditions in geostationary orbit. The results of the optical tests in operating conditions produced by the Optical Ground Support Equipment are also included and discussed in this paper.

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Proceedings Article | 21 August 2020 Presentation + Paper

Developments on the instrument performance predictions and contamination modelling: the practical approach of ESA’s Sentinel-4 mission

B. Bras, M. Orlandi, M. Lang, S. Riedl, M. Costa, M. Sallusti, G. Bagnasco, R. Rampini

Proceedings Volume 11489, 114890A (2020) https://doi.org/10.1117/12.2568777

KEYWORDS: Contamination, Absorption, Transmittance, Space operations, Sensors, Signal to noise ratio, Signal attenuation, Modeling, Confocal microscopy

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Proceedings Article | 12 July 2019 Open Access

Sentinel 4 UVN: a geostationary imaging UVN spectrometer for air quality monitoring: performance, measurement modes and model philosophy

S. Riedl, M. Harlander, C. Schlosser, M. Kolm, R. Maurer, G. Bazalgette Courrèges-Lacoste, C. Pachot, B. Ahlers, S. Grabarnik, L. Gambicorti, M. Sallusti, G. Bulsa, G. Bagnasco

Proceedings Volume 11180, 1118005 (2019) https://doi.org/10.1117/12.2535924

KEYWORDS: Calibration, Near infrared, Sun, Spectroscopy, Polarization, Scanners, Mirrors, Sensors, Telescopes, Light sources

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Proceedings Article | 17 November 2017 Open Access

Sentinel 4: a geostationary imaging UVN spectrometer for air quality monitoring: status of design, performance and development

S. Gulde, M. Kolm, D. Smith, R. Maurer, G. Bazalgette Courrèges-Lacoste, M. Sallusti, G. Bagnasco

Proceedings Volume 10563, 1056341 (2017) https://doi.org/10.1117/12.2304099

KEYWORDS: Calibration, Near infrared, Sensors, Sun, Polarization, Diffusers, Stars, Spectroscopy, Reflectivity, Optical design

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Proceedings Article | 29 September 2017 Paper

The Copernicus Sentinel 4 mission: a geostationary imaging UVN spectrometer for air quality monitoring

G. Bazalgette Courrèges-Lacoste, M. Sallusti, G. Bulsa, G. Bagnasco, Ben Veihelmann, S. Riedl, D. Smith, R. Maurer

Proceedings Volume 10423, 1042307 (2017) https://doi.org/10.1117/12.2282158

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Proceedings Article | 25 September 2017 Open Access

Knowing what we breathe: Sentinel 4: a geostationary imaging UVN spectrometer for air quality monitoring

G. Bazalgette Courrèges-Lacoste, M. Sallusti, G. Bulsa, G. Bagnasco, S. Gulde, M. G. Kolm, D. Smith, R. Maurer

Proceedings Volume 10562, 105621J (2017) https://doi.org/10.1117/12.2296106

KEYWORDS: Calibration, Near infrared, Sun, Spectroscopy, Polarization, Scanners, Astronomical imaging, Mirrors, Optical components, Telescopes

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Proceedings Article | 21 September 2012 Paper

The JWST near-infrared spectrograph NIRSpec: status

Pierre Ferruit, Giorgio Bagnasco, Reiner Barho, Stephan Birkmann, Torsten Böker, Guido De Marchi, Bernhard Dorner, Ralf Ehrenwinkler, Massimo Falcolini, Giovanna Giardino, Xavier Gnata, Karl Honnen, Peter Jakobsen, Peter Jensen, Manfred Kolm, Hans-Ulrich Maier, Ralf Maurer, Markus Melf, Peter Mosner, Peter Rumler, Jean-Christophe Salvignol, Marco Sirianni, Paolo Strada, Maurice te Plate, Thomas Wettemann

Proceedings Volume 8442, 84422O (2012) https://doi.org/10.1117/12.925810

KEYWORDS: James Webb Space Telescope, Spectroscopy, Spectral resolution, Spectroscopes, Molybdenum, Sensors, Spectrographs, Astronomical imaging, Galactic astronomy, Near infrared spectroscopy

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Proceedings Article | 5 August 2010 Paper

Status of the NIRSpec instrument

Stephan Birkmann, Torsten Böker, Peter Jakobsen, Guido de Marchi, Marco Sirianni, Giorgio Bagnasco, Peter Jensen, Maurice B. J. te Plate, Peter Rumler, Jean-Christophe Salvignol, Paolo Strada, Manfred Kolm, Xavier Gnata, Karl Honnen, Jess Köhler, Robert Lemke, Marc Maschmann, Markus Melf, Jean-Francois Pittet, Pierre Ferruit, Bernhard Dorner

Proceedings Volume 7731, 77310D (2010) https://doi.org/10.1117/12.858000

KEYWORDS: Calibration, Mirrors, Optical filters, James Webb Space Telescope, Sensors, Staring arrays, Fermium, Frequency modulation, Spectrographs, Spectroscopes

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Proceedings Article | 28 August 2009 Paper

JWST near infrared detectors: latest test results

Erin Smith, Bernard Rauscher, David Alexander, Brian Clemons, Chuck Engler, Matthew Garrison, Robert Hill, Thomas Johnson, Don Lindler, Sridhar Manthripragada, Cheryl Marshall, Brent Mott, Thomas Parr, Wayne Roher, Kamdin Shakoorzadeh, Richard Schnurr, Augustyn Waczynski, Yiting Wen, Donna Wilson, Markus Loose, Giorgio Bagnasco, Torsten Böker, Guido De Marchi, Pierre Ferruit, Peter Jakobsen, Paolo Strada

Proceedings Volume 7419, 741907 (2009) https://doi.org/10.1117/12.826399

KEYWORDS: Sensors, James Webb Space Telescope, Electronics, Near infrared, Calibration, Infrared sensors, Space telescopes, Infrared telescopes, Infrared radiation, Astronomy

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Proceedings Article | 25 July 2008 Paper

James Webb Space Telescope Near-Infrared Spectrograph: dark performance of the first flight candidate detector arrays

Bernard Rauscher, David Alexander, Clifford Brambora, Meng Chiao, Brian Clemons, Rebecca Derro, Charles Engler, Ori Fox, Matthew Garrison, Matthew Greenhouse, Greg Henegar, Robert Hill, Thomas Johnson, Rodolfo Lavaque, Don Lindler, Sridhar Manthripragada, Cheryl Marshall, Brent Mott, Thomas Parr, Wayne Roher, Kamdin Shakoorzadeh, Miles Smith, Augustyn Waczynski, Yiting Wen, Donna Wilson, Mary Ballard, Craig Cabelli, Edward Cheng, James Garnett, Elliott Koch, Markus Loose, Majid Zandian, Joseph Zino, Timothy Ellis, Bryan Howe, Miriam Jurado, Ginn Lee, John Nieznanski, Peter Wallis, James York, Michael Regan, Giorgio Bagnasco, Torsten Böker, Guido De Marchi, Pierre Ferruit, Peter Jakobsen, Paolo Strada

Proceedings Volume 7021, 702124 (2008) https://doi.org/10.1117/12.786550

KEYWORDS: James Webb Space Telescope, Interference (communication), Sensors, Detector arrays, Mercury cadmium telluride, Cadmium sulfide, Space telescopes, Spectrographs, Near infrared, Readout integrated circuits

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Proceedings Article | 23 July 2008 Paper

The cryogenic refocusing mechanism of NIRSpec opto-mechanical design, analysis, and testing

Matteo Taccola, Giorgio Bagnasco, Reiner Barho, Giulio Cesare Caprini, Marco Di Giampietro, Lionel Gaillard, Giuseppe Mondello, Jean-Christophe Salvignol, Maurice Te Plate, Nazzareno Tonetti

Proceedings Volume 7018, 70181Z (2008) https://doi.org/10.1117/12.787868

KEYWORDS: Mirrors, Cryogenics, Coating, Temperature metrology, Finite element methods, Optical alignment, Silicon carbide, Optomechanical design, James Webb Space Telescope, Optical analysis

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Proceedings Article | 12 July 2008 Paper

The on-ground calibration of the Near Infrared Spectrograph (NIRSpec instrument on-board the James Webb Space Telescope (JWST)

Giorgio Bagnasco, Pierre Ferruit, Torsten Boeker, Martin Closs, Bernhard Dorner, Xavier Gnata, Jess Koehler, Manfred Kolm, Christoph Kuechel, Harald Langenbach, Markus Melf, Jean-Francoise Pittet, Maurice Te Plate, Thomas Wetteman

Proceedings Volume 7010, 701035 (2008) https://doi.org/10.1117/12.788172

KEYWORDS: Calibration, James Webb Space Telescope, Optical filters, Spectral calibration, Sensors, Integrating spheres, Spectrographs, Mirrors, Signal attenuation, Cryogenics

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Proceedings Article | 28 September 2007 Paper

Overview of the near-infrared spectrograph (NIRSpec) instrument on-board the James Webb Space Telescope (JWST)

Giorgio Bagnasco, Manfred Kolm, Pierre Ferruit, Karl Honnen, Jess Koehler, Robert Lemke, Marc Maschmann, Markus Melf, George Noyer, Peter Rumler, Jean-Christophe Salvignol, Paolo Strada, Maurice Te Plate

Proceedings Volume 6692, 66920M (2007) https://doi.org/10.1117/12.735602

KEYWORDS: Mirrors, Staring arrays, James Webb Space Telescope, Calibration, Sensors, Camera shutters, Spectrographs, Silicon carbide, Optical fabrication, Spectroscopy

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Proceedings Article | 18 August 2005 Paper

Opto-mechanical design of the near-infrared spectrograph NIRSpec

Maurice te Plate, Wolfgang Holota, Winfried Posselt, Jess Koehler, Markus Melf, Giorgio Bagnasco, Pierangelo Marenaci

Proceedings Volume 5904, 59040L (2005) https://doi.org/10.1117/12.620772

KEYWORDS: Mirrors, Silicon carbide, James Webb Space Telescope, Staring arrays, Optical filters, Spectral resolution, Calibration, Content addressable memory, Camera shutters, Image quality

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Proceedings Article | 12 October 2004 Paper

Detectors for the James Webb Space Telescope near-infrared spectrograph

Bernard Rauscher, Donald Figer, Michael Regan, Torsten Boeker, James Garnett, Robert Hill, Giorgio Bagnasco, Jesus Balleza, Richard Barney, Louis Bergeron, Clifford Brambora, Joe Connelly, Rebecca Derro, Michael DiPirro, Christina Doria-Warner, Aprille Ericsson, Stuart Glazer, Charles Greene, Donald Hall, Shane Jacobson, Peter Jakobsen, Eric Johnson, Scott Johnson, Carolyn Krebs, Danny Krebs, Scott Lambros, Blake Likins, Sridhar Manthripragada, Robert Martineau, Ernie Morse, Samuel Moseley, D. Brent Mott, Theo Muench, Hongwoo Park, Susan Parker, Elizabeth Polidan, Robert Rashford, Kamdin Shakoorzadeh, Rajeev Sharma, Paolo Strada, Augustyn Waczynski, Yiting Wen, Selmer Wong, John Yagelowich, Monica Zuray

Proceedings Volume 5487, (2004) https://doi.org/10.1117/12.549573

KEYWORDS: Sensors, James Webb Space Telescope, Staring arrays, Calibration, Spectrographs, Readout integrated circuits, Electronics, Detector development, Clocks, Mercury cadmium telluride

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Proceedings Article | 10 November 1998 Paper

XMM flight mirror modules with reflection grating assembly and x-ray baffle testing

Yvan Stockman, Isabelle Domken, Hebert Hansen, Jean Tock, Todd Decker, Andrew Rasmussen, Antonius den Boggende, Jan-Willem den Herder, Frits Paerels, G. Bagnasco, Daniel de Chambure, Christian Erd, Philippe Gondoin

Proceedings Volume 3445, (1998) https://doi.org/10.1117/12.330313

KEYWORDS: Mirrors, X-rays, Extreme ultraviolet, Diffraction, Telescopes, Collimation, Diffraction gratings, Charge-coupled devices, Fermium, Image quality

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Showing 5 of 16 publications

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