Volume 597, January 2017
|Number of page(s)||12|
|Section||Catalogs and data|
|Published online||19 December 2016|
OIFITS 2: the 2nd version of the data exchange standard for optical interferometry⋆
1 Univ. Grenoble Alpes, IPAG, 38000 Grenoble, France
2 CNRS, IPAG, 38000 Grenoble, France
3 Cavendish Laboratory, University of Cambridge, J J Thomson Avenue, Cambridge, UK
4 European Southern Observatory, Karl-Schwarzschild-Str. 2, 85748 Garching, Germany
Received: 24 April 2015
Accepted: 2 August 2016
This paper describes version 2 of the Optical Interferometry exchange Format (OIFITS), the standard for exchanging calibrated data from optical (visible or infrared) interferometers. This IAU-endorsed standard has been in use for 10 years at most of the past and current optical interferometer projects, including COAST, NPOI, IOTA, CHARA, VLTI, PTI and the Keck interferometer. Software is available for reading, writing and merging OIFITS files. This version 2 provides definitions of additional data tables (for example for polarisation measurements), addressing the needs of future interferometric instruments. Also included are data columns for a more rigorous description of measurement errors and their correlations. In that, this document is a step towards the design of a common data model for optical interferometry. Finally, the main OIFITS header is expanded with several new keywords summarising the content to allow doing data base searches.
Key words: virtual observatory tools / standards / techniques: interferometric / instrumentation: interferometers / techniques: image processing / methods: data analysis
We request that comments and suggestions related to OIFITS be directed to the OLBIN email list. (See http://www.jmmc.fr/olbin-forum for information on how to subscribe and post to the list.)
© ESO, 2016
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