SORA: Stellar occultation reduction and analysis

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Gomes-Junior A. R., Morgado B. E., Benedetti-Rossi G., Boufleur R. C., Rommel F. L., Banda-Huarca M., ...More

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol.511, no.1, pp.1167-1181, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 511 Issue: 1
  • Publication Date: 2022
  • Doi Number: 10.1093/mnras/stac032
  • Journal Name: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Communication Abstracts, INSPEC, Metadex, zbMATH, DIALNET, Civil Engineering Abstracts
  • Page Numbers: pp.1167-1181
  • Keywords: methods: data analysis, software: data analysis, occultations, ASTROMETRY, ATMOSPHERE, RADIUS, RINGS, PACKAGE, BODIES, PLUTO, SHAPE, SIZE
  • Akdeniz University Affiliated: Yes

Abstract

The stellar occultation technique provides competitive accuracy in determining the sizes, shapes, astrometry, etc., of the occulting body, comparable to in-situ observations by spacecraft. With the increase in the number of known Solar system objects expected from the LSST, the highly precise astrometric catalogs, such as Gaia, and the improvement of ephemerides, occultations observations will become more common with a higher number of chords in each observation. In the context of the Big Data era, we developed sora, an open-source python library to reduce and analyse stellar occultation data efficiently. It includes routines from predicting such events up to the determination of Solar system bodies' sizes, shapes, and positions.