
Proceedings Paper
On-board CME detection algorithm for the Solar Orbiter-METIS coronagraphFormat | Member Price | Non-Member Price |
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Paper Abstract
The METIS coronagraph is one of the instruments part of the payload of the ESA – Solar Orbiter mission to be launched
in 2017. The spacecraft will operate much like a planetary encounter mission, with the main scientific activity taking
place with the remote-sensing instruments during three 10-days intervals per orbit: optimization of the different
instrument observing modes will be crucial. One of the key scientific targets of METIS will be the study of transient
ejections of mass through the solar corona (Coronal Mass Ejections – CMEs) and their heliospheric evolution. METIS
will provide for the first time imaging of CMEs in two different wavelengths: VL (visible light 580- 640 nm) and UV
(Lyman-α line of HI at 121.6 nm). The detection of transient phenomena shall be managed directly by the METIS
Processing and Power Unit (MPPU) by means of both external triggers (“flags”) coming from other Solar Orbiter
instruments, and internal “flags” produced directly by the METIS on-board software. METIS on-board algorithm for the
automatic detection of CMEs will be based on running differences between consecutive images re-binned to very low
resolution and thresholded for significant changes over a minimum value. Given the small relative variation of white
light intensity during CMEs, the algorithm will take advantage of VL images acquired with different polarization angles
to maximize the detection capability: possible false detections should be automatically managed by the algorithm. The
algorithm will be able to provide the CME first detection time, latitudinal direction of propagation on the plane of the
sky (within 45 degrees), a binary flag indicating whether a "halo CME" has been detected.
Paper Details
Date Published: 18 July 2014
PDF: 11 pages
Proc. SPIE 9152, Software and Cyberinfrastructure for Astronomy III, 91520K (18 July 2014); doi: 10.1117/12.2055511
Published in SPIE Proceedings Vol. 9152:
Software and Cyberinfrastructure for Astronomy III
Gianluca Chiozzi; Nicole M. Radziwill, Editor(s)
PDF: 11 pages
Proc. SPIE 9152, Software and Cyberinfrastructure for Astronomy III, 91520K (18 July 2014); doi: 10.1117/12.2055511
Show Author Affiliations
A. Bemporad, INAF - Osservatorio Astronomico di Torino (Italy)
V. Andretta, INAF - Osservatorio Astronomico di Capodimonte (Italy)
M. Pancrazzi, INAF - Osservatorio Astrofisico di Arcetri (Italy)
Univ. degli Studi di Firenze (Italy)
M. Focardi, INAF - Osservatorio Astrofisico di Arcetri (Italy)
Univ. degli Studi di Firenze (Italy)
T. Straus, INAF - Osservatorio Astronomico di Capodimonte (Italy)
C. Sasso, INAF - Osservatorio Astronomico di Capodimonte (Italy)
D. Spadaro, INAF - Osservatorio Astrofisico di Catania (Italy)
M. Uslenghi, INAF - IASF Milano (Italy)
V. Andretta, INAF - Osservatorio Astronomico di Capodimonte (Italy)
M. Pancrazzi, INAF - Osservatorio Astrofisico di Arcetri (Italy)
Univ. degli Studi di Firenze (Italy)
M. Focardi, INAF - Osservatorio Astrofisico di Arcetri (Italy)
Univ. degli Studi di Firenze (Italy)
T. Straus, INAF - Osservatorio Astronomico di Capodimonte (Italy)
C. Sasso, INAF - Osservatorio Astronomico di Capodimonte (Italy)
D. Spadaro, INAF - Osservatorio Astrofisico di Catania (Italy)
M. Uslenghi, INAF - IASF Milano (Italy)
E. Antonucci, INAF - Osservatorio Astronomico di Torino (Italy)
S. Fineschi, INAF - Osservatorio Astronomico di Torino (Italy)
L. Abbo, INAF - Osservatorio Astronomico di Torino (Italy)
G. Nicolini, INAF - Osservatorio Astronomico di Torino (Italy)
F. Landini, Univ. degli Studi di Firenze (Italy)
M. Romoli, Univ. degli Studi di Firenze (Italy)
G. Naletto, Univ. degli Studi di Padova (Italy)
P. Nicolosi, Univ. degli Studi di Padova (Italy)
S. Fineschi, INAF - Osservatorio Astronomico di Torino (Italy)
L. Abbo, INAF - Osservatorio Astronomico di Torino (Italy)
G. Nicolini, INAF - Osservatorio Astronomico di Torino (Italy)
F. Landini, Univ. degli Studi di Firenze (Italy)
M. Romoli, Univ. degli Studi di Firenze (Italy)
G. Naletto, Univ. degli Studi di Padova (Italy)
P. Nicolosi, Univ. degli Studi di Padova (Italy)
Published in SPIE Proceedings Vol. 9152:
Software and Cyberinfrastructure for Astronomy III
Gianluca Chiozzi; Nicole M. Radziwill, Editor(s)
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