Distance determination method of dust particles using Rosetta OSIRIS NAC and WAC data

Drolshagen, E.; Ott, T.; Koschny, D.; Güttler, C.; Tubiana, C.; Agarwal, J.; Sierks, H.; Barbieri, C.; Lamy, P.I.; Rodrigo, Rafael; Rickman, H.; A'Hearn, M.F.; Barucci, M.A.; Bertaux, J.-L.; Bertini, I.; Cremonese, G.; Deppo, V. Da; Davidsson, B.; Debei, S.; Cecco, M. De; ... (2017). Distance determination method of dust particles using Rosetta OSIRIS NAC and WAC data. Planetary and space science, 143, pp. 256-264. Elsevier 10.1016/j.pss.2017.04.018

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The ESA Rosetta spacecraft has been tracking its target, the Jupiter-family comet 67P/Churyumov-Gerasimenko, in close vicinity for over two years. It hosts the OSIRIS instruments: the Optical, Spectroscopic, and Infrared Remote Imaging System composed of two cameras, see e.g. Keller et al. (2007). In some imaging sequences dedicated to observe dust particles in the comet's coma, the two cameras took images at the same time. The aim of this work is to use these simultaneous double camera observations to calculate the dust particles’ distance to the spacecraft. As the two cameras are mounted on the spacecraft with an offset of 70 cm, the distance of particles observed by both cameras can be determined by a shift of the particles’ apparent trails on the images. This paper presents first results of the ongoing work, introducing the distance determination method for the OSIRIS instrument and the analysis of an example particle. We note that this method works for particles in the range of about 500–6000 m from the spacecraft.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences

UniBE Contributor:

Rodrigo, Rafael and Thomas, Nicolas

Subjects:

500 Science > 520 Astronomy
600 Technology > 620 Engineering

ISSN:

0032-0633

Publisher:

Elsevier

Language:

English

Submitter:

Dora Ursula Zimmerer

Date Deposited:

14 Nov 2017 16:20

Last Modified:

14 Nov 2017 16:20

Publisher DOI:

10.1016/j.pss.2017.04.018

BORIS DOI:

10.7892/boris.106273

URI:

https://boris.unibe.ch/id/eprint/106273

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