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Proceedings Paper

Recent advances in electronics and software for the METIS coronagraph aboard solar orbiter
Author(s): M. Focardi; M. Pancrazzi; G. Nicolini; E. Magli; M. Ricci; M. Uslenghi; M. Romoli; F. Landini; E. Antonucci; S. Fineschi; G. Naletto; P. Nicolosi; D. Spadaro; V. Andretta; W. Errico; F. Bigongiari; L. Fontani; Marco Orlandi; Annamaria Colonna
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Paper Abstract

METIS is a visible and UV externally inversely occulted coronagraph selected to fly aboard the Solar Orbiter space mission. Thanks to its own capabilities and exploiting the peculiar opportunities offered by the SO mission profile, the instrument will address some of the still open issues in understanding the physics driving the observed processes in the corona and characterizing the slow and fast components of the solar wind. Recently the METIS design went thorough a significant revision involving the overall electronics configuration and software functionalities, comprehensive of descoping of some features but also aiming at the improvement of the instrument’s reliability. As a result the electronics architecture has been simplified enabling an effective cold-strapped redundancy scheme of some subsystems, while the preliminary SW database has been defined as well. We also identified the scientific processing algorithms implementing the instrument functionalities and the imagecompression capabilities able to match the selected HW resources providing an optimal compromise between complexity and compression ratio. This paper describes the revised electronics and software design developed in order to maximize the overall scientific returns with the updated instrument configuration approaching the Phases C/D of the project.

Paper Details

Date Published: 26 September 2013
PDF: 13 pages
Proc. SPIE 8862, Solar Physics and Space Weather Instrumentation V, 88620U (26 September 2013); doi: 10.1117/12.2023256
Show Author Affiliations
M. Focardi, INAF - Osservatorio Astrofisico di Arcetri (Italy)
M. Pancrazzi, INAF - Osservatorio Astrofisico di Arcetri (Italy)
G. Nicolini, INAF - Osservatorio Astronomico di Torino (Italy)
E. Magli, Politecnico di Torino (Italy)
M. Ricci, Politecnico di Torino (Italy)
M. Uslenghi, INAF - IASF Milano (Italy)
M. Romoli, Univ. degli Studi di Firenze (Italy)
F. Landini, INAF - Osservatorio Astrofisico di Arcetri (Italy)
E. Antonucci, INAF - Osservatorio Astronomico di Torino (Italy)
S. Fineschi, INAF - Osservatorio Astronomico di Torino (Italy)
G. Naletto, Univ. degli Studi di Padova (Italy)
Istituto di Fotonica e Nanotecnologie, CNR (Italy)
P. Nicolosi, Univ. degli Studi di Padova (Italy)
Istituto di Fotonica e Nanotecnologie, CNR (Italy)
D. Spadaro, INAF - Osservatorio Astrofisico di Catania (Italy)
V. Andretta, INAF - Osservatorio Astronomico di Capodimonte (Italy)
W. Errico, Sitael S.p.a. (Italy)
F. Bigongiari, Sitael S.p.a. (Italy)
L. Fontani, Sitael S.p.a. (Italy)
Marco Orlandi, Sitael S.p.a. (Italy)
Annamaria Colonna, Sitael S.p.a. (Italy)


Published in SPIE Proceedings Vol. 8862:
Solar Physics and Space Weather Instrumentation V
Silvano Fineschi; Judy Fennelly, Editor(s)

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