Mr. Philippe P. Martin Profile

Philippe P. Martin

at Thales Alenia Space

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Publications (6)

Proceedings Article | 20 October 2023 Presentation

Meteosat third generation (MTG) satellites series overall status: the launch and in-orbit characterisation of the first imagery mission of MTG

Donny M. Aminou, Paul Blythe, A. Palacios, P. Kokou, P. V. D. Braembussche, J. Champion, D. Lamarre, T. Gugenmoser, D. Innorta, G. Fowler, M. Lekouara, A. Burini, B. Viticchie, J. Grandell, F. Olivier, P. Martin, C. Monfort, V. Soulignac, E. Hache, S. Lambert, O. Brize, G. De Roquefeuil, P. Armand, C. Simoncelli, L. Giunti, G. Pastorini, S. Lorenzini, A. Viglione, R. Feckl, F. Carbo, P. Rueda, R. Schoenfeld

Proceedings Volume 12729, 127290S (2023) https://doi.org/10.1117/12.2683410

KEYWORDS: Satellites, Equipment, Ultraviolet radiation, Temperature metrology, Lightning, Infrared imaging, Imaging systems, Geostationary orbit, Air temperature, Temporal resolution

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Proceedings Article | 12 July 2023 Open Access

Meteosat Third Generation : MTG-I FCI PFM instrument radiometric performance

Nadège Remoué, Bruno Chetrite, Geoffroy Bordot, Philippe Martin, Donny Aminou, Micael Miranda, Mark Wilson

Proceedings Volume 12777, 127771G (2023) https://doi.org/10.1117/12.2689288

KEYWORDS: Infrared imaging, Equipment, Thermography, Astronomical imaging, Radio optics, Design and modelling, Video, Satellites, Spatial resolution, Radiometric calibration

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Meteosat Third Generation (MTG) is the new European mission for accurate observation of the Earth dedicated to meteorological applications. MTG Program is being realised through the well-established and successful cooperation between EUMETSAT and ESA. MTG system will ensure continuity and enhancement of operational meteorological (and climate) data from Geostationary Orbit as currently provided by the Meteosat Second Generation (MSG) system. The industrial Prime Contractor for the Space segment of MTG is Thales Alenia Space (France) with a core team consortium including OHB (Germany). This contract includes the provision of six satellites, four Imaging satellites (MTG-I) and two sounding satellites (MTG-S), which will ensure a total operational life of the MTG system in excess of 20 years. MTG-I first satellite will be launched end of 2022, starting point of the in-orbit story of MTG. MTG-I embarks the FCI (Flexible Combined Imager), optical payload developed at Thales Alenia Space in France. The FCI is an imaging radiometer which provides simultaneously to the users 16 spectral channels from Visible to Very Long Wave InfraRed (0.4µm – 13.3µm) delivering full disk services (in 10 minutes) at their nominal sampling distance (1 to 2km). Four channels are also delivered at a smaller spatial sampling distance (down to 500m). FCI also provides local area scanning possibilities with a higher repeat cycle (down to 2.5 minutes). The present paper is dedicated to the FCI end-to-end radiometric performance. After an overview of the FCI and the design specificities of its detection chains, its key radiometric performance will be presented. It will focus on FCI PFM test results, which has successfully passed the on-ground fine radiometric calibration and characterization campaign under optical vacuum in 2021. After 10 years of development at Thales Alenia Space, with a fruitful cooperation of many European sub-contractors, the results of the performance characterization and calibration of the FCI have been successfully demonstrated. This work has been achieved thanks to the major support and supervision of ESA.

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Proceedings Article | 11 June 2021 Open Access

FCI instrument on-board MeteoSat Third Generation satellite: design and development status

Philippe Martin, Yannig Durand, Donny Aminou, Catherine Gaudin-Delrieu, Jean-Luc Lamard

Proceedings Volume 11852, 118520B (2021) https://doi.org/10.1117/12.2599152

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Proceedings Article | 13 April 2018 Paper

Planck Telescope: optical design and verification

Philippe Martin, Jean-Bernard Riti, Daniel de Chambure

Proceedings Volume 10568, 105682D (2018) https://doi.org/10.1117/12.2500108

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Proceedings Article | 12 July 2008 Paper

Herschel payload: straylight design and performance

Philippe Martin, Siegmund Idler

Proceedings Volume 7010, 701007 (2008) https://doi.org/10.1117/12.787811

KEYWORDS: Telescopes, Picture Archiving and Communication System, Mathematical modeling, Space telescopes, Mirrors, Observatories, Sensors, Scattering, Photometry, Spectroscopy

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Proceedings Article | 5 March 2003 Paper

Planck payload module design and performance

Jean-Bernard Riti, Denis Dubruel, Madivanane Nadarassin, Philippe Martin, Emmanuel Gavila, Thierry Lasic, Daniel de Chambure, Bernard Guillaume

Proceedings Volume 4850, (2003) https://doi.org/10.1117/12.461912

KEYWORDS: Telescopes, Space telescopes, Reflectors, Space operations, Reflector telescopes, Interfaces, Cryogenics, Sensors, Optical instrument design, Satellites

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Planck associated to Herschel is one of the next ESA scientific missions. Both satellites will be launched in 2007 on a single ARIANE V launcher to the 2nd Lagrange libration point L2. Planck is a Principal Investigator Survey mission and the Planck spacecraft will provide the environment for two full sky surveys in the frequency range from 30 to 857 GHz. Planck aims to image the temperature anisotropies of the Cosmic Microwave Background (CMB) over the whole sky with a sensitivity of ΔT/T = 2 .10^-6 and an angular resolution of 10 arc-minutes. This will be obtained thanks to a wide wavelength range telescope associated to a cryogenic Payload Module. The Planck mission leads to very stringent requirements (straylight, thermal stability) that can only be achieved by designing the spacecraft at system level, combining optical, radio frequency and thermal engineering. The PLANCK Payload Module (PPLM) is composed of a cryo-structure supporting and a 1.5 m aperture off-axis telescope equipped of two scientific instruments HFI (High Frequency Instrument) and LFI (Low Frequency Instrument). The LFI detectors are based on HETM amplifier technology and need to be cooled down to 20 K. The detectors for the HFI are bolometers operating at 0.1 K. These temperature levels are obtained using 3 different active coolers, a 20K sorption cooler stage, which need pre-cooling stages for normal operation (the coldest one is around 60 K). Finally, the telescope temperature must be lower than 60 K. To meet those requirements, a specific cryo-structure accommodating a multi-stages cryogenic passive radiator has been developed. The design of this high efficiency radiator is basically a black painted open honeycomb surface radiatively insulated from the warm spacecraft by a set of angled shields opened towards cold space, also called "V-grooves". The coldest stage offers a ~1.5 W net cooling capacity around 55 K. Specific design are implemented to guarantee the straylight performance. The impacts of these elements on the Planck straylight performance have been assessed. The Payload Module design, the thermal performances (temperature level and stability) and RF performances as well as the integration logic are presented in this paper.

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