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Proceedings Paper • Open Access

Space flight-model multichannel photometer for spectral detection of stratospheric transient luminous events in Taranis mission
Author(s): S. Gaillac; D. Euzenne; W. Glastre; P. Maquet; H. Philippe; T. Farges; K. Mathieu; E. Bellouard; D. Faye

Paper Abstract

In 1990, scientists discovered and started studying the luminous events which occur above storms at altitudes of 20 to 100km. These Transient Luminous Events (TLE) are associated to high energy particle emissions like X rays, gamma rays… They cannot be easily observed from earth because of clouds and atmospheric absorption. Goal of Taranis satellite which will be launch in 2019 is to collect high resolution data on these TLE.
One of Taranis satellite instruments is a photometer which goals will be to measure emitted light in 4 different wavelength ranges and to distinguish TLE emission from lightning’s emission. Bertin Technology has been assigned the task to design, develop, integrate and validate this optical sensor.
The photometer aims at measuring very low light levels with a high signal to noise ratio and with a good uniformity all over an important field of view. These requirements lead to use high sensitivity detectors, special filtering systems in UV channel (180−220nm) and specific optical system to limit the loss of energy and to flatten the optical response over the field of view.
The development of the photometer was submitted to important environmental constraints: mass, available space, vibration, shocks, temperatures… Bertin’s challenge has been to take into account these strong environmental requirements which specific damping mechanical system working at low temperature. Final performances measured on the flying model are presented.

Paper Details

Date Published: 12 July 2019
PDF: 8 pages
Proc. SPIE 11180, International Conference on Space Optics — ICSO 2018, 111804X (12 July 2019); doi: 10.1117/12.2536096
Show Author Affiliations
S. Gaillac, Bertin Technologies (France)
D. Euzenne, Bertin Technologies (France)
W. Glastre, Bertin Technologies (France)
P. Maquet, Bertin Technologies (France)
H. Philippe, Ctr. National d'Études Spatiales (France)
T. Farges, CEA-DAM Ile-de-France (France)
K. Mathieu, Ctr. National d'Études Spatiales (France)
E. Bellouard, Ctr. National d'Études Spatiales (France)
D. Faye, Ctr. National d'Études Spatiales (France)

Published in SPIE Proceedings Vol. 11180:
International Conference on Space Optics — ICSO 2018
Zoran Sodnik; Nikos Karafolas; Bruno Cugny, Editor(s)

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