29 July 2016 Recent achievements on ASPIICS, an externally occulted coronagraph for PROBA-3
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Abstract
This paper presents the current status of ASPIICS, a solar coronagraph that is the primary payload of ESA’s formation flying in-orbit demonstration mission PROBA-3. The “sonic region” of the Sun corona remains extremely difficult to observe with spatial resolution and sensitivity sufficient to understand the fine scale phenomena that govern the quiescent solar corona, as well as phenomena that lead to coronal mass ejections (CMEs), which influence space weather. Improvement on this front requires eclipse-like conditions over long observation times. The space-borne coronagraphs flown so far provided a continuous coverage of the external parts of the corona but their over-occulting system did not permit to analyse the part of the white-light corona where the main coronal mass is concentrated. The PROBA-3 Coronagraph System, also known as ASPIICS (Association of Spacecraft for Polarimetric and Imaging Investigation of the Corona of the Sun) is designed as a classical externally occulted Lyot coronagraph but it takes advantage of the opportunity to place the external occulter on a companion spacecraft, about 150m apart, to perform high resolution imaging of the inner corona of the Sun as close as ~1.1 solar radii. The images will be tiled and compressed on board in an FPGA before being down-linked to ground for scientific analyses. ASPIICS is built by a large European consortium including about 20 partners from 7 countries under the auspices of the European Space Agency. This paper is reviewing the recent development status of the ASPIICS instrument as it is approaching CDR.
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Etienne Renotte, Etienne Renotte, Steve Buckley, Steve Buckley, Ileana Cernica, Ileana Cernica, François Denis, François Denis, Richard Desselle, Richard Desselle, Lieve De Vos, Lieve De Vos, Silvano Fineschi, Silvano Fineschi, Karl Fleury-Frenette, Karl Fleury-Frenette, Damien Galano, Damien Galano, Camille Galy, Camille Galy, Jean-Marie Gillis, Jean-Marie Gillis, Estelle Graas, Estelle Graas, Rafal Graczyk, Rafal Graczyk, Petra Horodyska, Petra Horodyska, Nektarios Kranitis, Nektarios Kranitis, Michal Kurowski, Michal Kurowski, Michal Ladno, Michal Ladno, Sylvie Liebecq, Sylvie Liebecq, Davide Loreggia, Davide Loreggia, Idriss Mechmech, Idriss Mechmech, Radek Melich, Radek Melich, Dominique Mollet, Dominique Mollet, Michał Mosdorf, Michał Mosdorf, Mateusz Mroczkowski, Mateusz Mroczkowski, Kevin O’Neill, Kevin O’Neill, Karel Patočka, Karel Patočka, Antonis Paschalis, Antonis Paschalis, Radek Peresty, Radek Peresty, Bartlomiej Radzik, Bartlomiej Radzik, Miroslaw Rataj, Miroslaw Rataj, Lucas Salvador, Lucas Salvador, Jean-Sébastien Servaye, Jean-Sébastien Servaye, Yvan Stockman, Yvan Stockman, Cédric Thizy, Cédric Thizy, Tomasz Walczak, Tomasz Walczak, Alicja Zarzycka, Alicja Zarzycka, Andrei Zhukov, Andrei Zhukov, "Recent achievements on ASPIICS, an externally occulted coronagraph for PROBA-3", Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99043D (29 July 2016); doi: 10.1117/12.2232695; https://doi.org/10.1117/12.2232695
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