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Registered FITS Convention
OIFITS: A Data Standard for Optical Interferometry Data
- Description: OIFITS is a standard for exchanging calibrated, time-averaged data from astronomical optical interferometers, based on the FITS Standard. OIFITS may be used to combine data from multiple interferometer arrays for joint analysis and/or image reconstruction. OIFITS-format files can be prepared from the raw interferometer data without using information about the detailed structure of the target object (i.e. without doing any astrophysical interpretation), yet once the data is in the format, it can be analysed without knowing the details of the instrument. Calibrated data from different interferometers can be treated in the same way (provided there are no residual systematic errors).
- Submitted: June 2007 by Thomas Pauls (Naval Research Lab)
- Registered: July 2007
- Date and Place of First Usage:
- 2004, in the Interformetry Imaging Beauty Contest
- First Publication: Monnier et al., 2004, ApJ, 605, 436
- Extent of Usage: This standard is supported by the majority of optical interferometer projects, including COAST, NPOI, IOTA, CHARA, VLTI, PTI, and the Keck Interferometer.
- Full Documentation: T. A. Pauls, J. S. Young, W. D. Cotton, and J. D. Monnier (2005). A data exchange standard for optical (visible/IR) interferometry. Pub. Astron. Soc. Pac., 117, 1255.
The paper T. A. Pauls, J. S. Young, W. D. Cotton, and J. D. Monnier (2004), Proc. SPIE 5491, 1231 is intended as a companion to the Format Specification, and gives an overview of OIFITS, explains some of the design decisions, and outlines some software resources for reading and writing the format.
Version 2 of the OIFITS2 standard: OIFITS2
An online validator tool: OIVAL
- Sample FITS File (from the 2006 Beauty Contest):
- Sample Header Listing:
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