GIADA performance during Rosetta mission scientific operations at comet 67P

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. and Liuzzi, V. (2017). GIADA performance during Rosetta mission scientific operations at comet 67P. Advances in Space Research (Early Access).

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DOI (Digital Object Identifier) Link:	https://doi.org/10.1016/j.asr.2017.07.031
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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.

Item Type:

Journal Item

2017 COSPAR

ISSN:

0273-1177

Project Funding Details:

Funded Project Name	Project ID	Funding Body
Astronomy and Planetary Sciences at the Open University	ST/L000776/1	STFC (Science & Technology Facilities Council)
Planetary Science at The Open University	ST/P000657/1	STFC (Science & Technology Facilities Council)

Keywords:

Rosetta ESA Mission; GIADA; Dust instrument; Inflight calibration; Performance monitoring

Academic Unit/School:

Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)

Item ID:

50397

Depositing User:

Simon Green

Date Deposited:

08 Aug 2017 10:16

Last Modified:

02 May 2018 14:32