Added-value interfaces to asteroid photometric and spectroscopic data in the Gaia database. Issue 2 (15th July 2018)

• Record Type: Journal Article
• Authors: Torppa, Johanna; Granvik, Mikael; Penttilä, Antti; Reitmaa, Jukka; Tudose, Violeta; Pelttari, Leena; Muinonen, Karri; Bakker, Jorgo; Navarro, Vicente; O'Mullane, William
• Is Part Of: Advances in space research. Volume 62:Issue 2(2018)
• Page Start: 464
• Page End: 476
• Publication Date: 2018-07-15
• Subjects: Gaia -- Asteroid -- Photometry -- Spectroscopy -- AVI; Space sciences -- Periodicals; Astronautics -- Periodicals; Geophysics -- Periodicals; 500.505
• DOI: 10.1016/j.asr.2018.04.035
• Languages: English
• ISSNs: 0273-1177

Abstract

Abstract: We present two added-value interfaces (AVIs) for analyzing photometric and spectroscopic data observed by the Gaia satellite. The Gaia Added-Value Interface for Temporal Analysis (GAVITEA) is used to calculate an estimate for the spin state and shape of an asteroid from its photometric data, and the Gaia Added-Value Interface for Spectral Classification (GAVISC) provides tools to define the taxonomic type and surface absorption coefficient based on spectroscopic asteroid data. Computations are mainly carried out using well-known methods of asteroid data analysis but the AVIs also offer the possibility to test novel methods that are specifically developed for analyzing temporally sparse photometric data, typical for Gaia.