GIADA performance during Rosetta mission scientific operations at comet 67P

DOI: 
10.1016/j.asr.2017.07.031
Publication date: 
27/09/2018
Main author: 
Sordini R.
IAA authors: 
Lopez-Moreno, J.J.;Rodriguez, J.;Morales, R.;Herranz, M.
Authors: 
Sordini R., Della Corte V., Rotundi A., Rotunno S., Ferrari M., Ivanovski S.L., Colangeli L., Palumbo P., Lopez-Moreno J.J., Rodriguez J., Fulle M., Green S.F., Mazzotta-Epifani E., Morales R., Accolla M., Palomba E., Cosi M., Herranz M., Liuzzi V.
Journal: 
Advances in Space Research
Refereed: 
Yes
Publication type: 
Article
Volume: 
62
Pages: 
1987-1997
Abstract: 
The Grain Impact Analyser and Dust Accumulator (GIADA) instrument onboard Rosetta studied the dust environment of comet 67P/Churyumov–Gerasimenko from 3.7 au inbound, through perihelion, to 3.8 au outbound, measuring the dust flow and the dynamic properties of individual particles. GIADA is composed of three subsystems: (1) Grain Detection System (GDS); (2) Impact Sensor (IS); and (3) Micro-Balances System (MBS). Monitoring the subsystems’ performance during operations is an important element for the correct calibration of scientific measurements. In this paper, we analyse the GIADA inflight calibration data obtained by internal calibration devices for the three subsystems during the period from 1 August 2014 to 31 October 2015. The calibration data testify a nominal behaviour of the instrument during these fifteen months of mission; the only exception is a minor loss of sensitivity for one of the two GDS receivers, attributed to dust contamination. © 2017 COSPAR
Database: 
SCOPUS
ADS
URL: 
https://ui.adsabs.harvard.edu/#abs/2018AdSpR..62.1987S/abstract
ADS Bibcode: 
2018AdSpR..62.1987S
Keywords: 
Dust instrument; GIADA; Inflight calibration; Performance monitoring; Rosetta ESA mission