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The DREAMS Experiment Onboard the Schiaparelli Module of the ExoMars 2016 Mission: Design, Performances and Expected Results

Francesca Esposito 1 Stefano Debei 2 C. Bettanini 2 C. Molfese 1 I. Arruego Rodríguez 3 G. Colombatti 2 A.-M. Harri 4 Franck Montmessin 5 C. Wilson 6 A. Aboudan 2 P. Schipani 1 L. Marty 1 F. Álvarez 3 V. Apestigue 3 G. Bellucci 7 Jean-Jacques Berthelier 5 J. Brucato 8 S. Calcutt 6 S. Chiodini 2 F. Cortecchia 9 F. Cozzolino 1 F. Cucciarrè 2 N. Deniskina 1 Grégoire Déprez 5 G. Di Achille 10 F. Ferri 2 François Forget 11 G. Franzese 1, 12 E. Friso 2 M. Genzer 4 Rafik Hassen-Khodja 13 H. Haukka 4 M. Hieta 4 J. Jimenez 3 J.-L. Josset 14 H. Kahanpää 4 Ö. Karatekin 15 G. Landis 16 Laurent Lapauw 13 R. Lorenz 17 J. Martinez-Oter 3 V. Mennella 1 D. Möhlmann 18 David Moirin 13 R. Molinaro 1 T. Nikkanen 4 E. Palomba 7 M. Patel 19 Jean-Pierre Pommereau 20 C. Popa 1 S. Rafkin 21 Pascal Rannou 22 N. Renno 23 J. Rivas 3 W. Schmidt 4 E. Segato 2 S. Silvestro 1 A. Spiga 11 D. Toledo 24 R. Trautner 25 F. Valero 26 Francis Vivat 13 O. Witasse 25 M. Yela 3 R. Mugnuolo 27 E. Marchetti 27 S. Pirrotta 27
Abstract : The first of the two missions foreseen in the ExoMars program was successfully launched on 14th March 2016. It included the Trace Gas Orbiter and the Schiaparelli Entry descent and landing Demonstrator Module. Schiaparelli hosted the DREAMS instrument suite that was the only scientific payload designed to operate after the touchdown. DREAMS is a meteorological station with the capability of measuring the electric properties of the Martian atmosphere. It was a completely autonomous instrument, relying on its internal battery for the power supply. Even with low resources (mass, energy), DREAMS would be able to perform novel measurements on Mars (atmospheric electric field) and further our understanding of the Martian environment, including the dust cycle. DREAMS sensors were designed to operate in a very dusty environment, because the experiment was designed to operate on Mars during the dust storm season (October 2016 in Meridiani Planum). Unfortunately, the Schiaparelli module failed part of the descent and the landing and crashed onto the surface of Mars. Nevertheless, several seconds before the crash, the module central computer switched the DREAMS instrument on, and sent back housekeeping data indicating that the DREAMS sensors were performing nominally. This article describes the instrument in terms of scientific goals, design, working principle and performances, as well as the results of calibration and field tests. The spare model is mature and available to fly in a future mission.
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Submitted on : Tuesday, August 21, 2018 - 3:21:11 PM
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Francesca Esposito, Stefano Debei, C. Bettanini, C. Molfese, I. Arruego Rodríguez, et al.. The DREAMS Experiment Onboard the Schiaparelli Module of the ExoMars 2016 Mission: Design, Performances and Expected Results. Space Science Reviews, Springer Verlag, 2018, 214 (6), 103. ⟨10.1007/s11214-018-0535-0⟩. ⟨insu-01858965⟩



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