Design and performances of microcameras and photometers instruments on TARANIS satellite for an advanced characterization of Transient Luminous Event in the upper atmosphere

Fanny Le Mer-Dachard; Elodie Cansot; Philippe Hébert; Thomas Farges; Karen Ravel; Stéphanie Gaillac

doi:10.1117/12.2194992

16 October 2015 Design and performances of microcameras and photometers instruments on TARANIS satellite for an advanced characterization of Transient Luminous Event in the upper atmosphere

Fanny Le Mer-Dachard , Elodie Cansot, Philippe Hébert, Thomas Farges, Karen Ravel, Stéphanie Gaillac

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Proceedings Volume 9640, Remote Sensing of Clouds and the Atmosphere XX; 964007 (2015) https://doi.org/10.1117/12.2194992
Event: SPIE Remote Sensing, 2015, Toulouse, France

Abstract

The TARANIS mission aims at studying upper atmosphere coupling with a scientific nadir-pointing microsatellite - CNES Myriade family – at a low-altitude orbit (700 km). The main objectives are to measure the occurrence of Transient Luminous Event (TLE), impulsive energetic optical phenomena generated by storms according to recently discovered process, and Terrestrial Gamma-ray Flash (TGF), their emissions and trigger factors. TARANIS instruments are currently in manufacturing, assembly, integration and testing phase. The MicroCameras and Photometers instruments (MCP) are in charge of the remote sensing of the sprites and the lightning in optical wavelengths. MicroCameras instrument [MCP-MC] is an imager in the visible and Photometers instrument [MCP-PH] is a radiometer with four bands from UV to NIR, able to detect TLEs on-board and to trigger the whole payload. The satellite will provide a complete survey of the atmosphere in low resolution together with a high resolution data of sites of interest automatically detected on board. For MC and PH instruments, CEA defined scientific needs and is in charge of processing data and providing scientific results. CNES described the technical requirements of these two instruments and will run in-flight commissioning. Design, manufacturing and testing is under responsibility of Sodern for MicroCameras and Bertin Technologies for Photometers. This article shortly describes physical characteristics of TLEs and presents the final design of these instruments and first measured performances.

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Fanny Le Mer-Dachard , Elodie Cansot, Philippe Hébert, Thomas Farges, Karen Ravel, and Stéphanie Gaillac "Design and performances of microcameras and photometers instruments on TARANIS satellite for an advanced characterization of Transient Luminous Event in the upper atmosphere", Proc. SPIE 9640, Remote Sensing of Clouds and the Atmosphere XX, 964007 (16 October 2015); https://doi.org/10.1117/12.2194992

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KEYWORDS

Thallium

Photometry

Cameras

Optical filters

Sensors

Calibration

Microchannel plates

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