Advanced Scientific Data Format: Difference between revisions

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Revision as of 08:46, 23 June 2022 edit Tenefifi (talk \| contribs) 9 edits m in first line, modified 'other astronomical data' to 'other scientifc data', since ASDF is a general purpose data format that is not limited to astronomy ← Previous edit		Latest revision as of 20:23, 2 September 2024 edit undo Qwfp (talk \| contribs) Autopatrolled, Extended confirmed users, Pending changes reviewers, Rollbackers 43,213 edits →top: Added links Tags: Mobile edit Mobile app edit Android app edit App select source
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Line 28: \| url = {{URL\|asdf-standard.readthedocs.io}} }} '''Advanced Scientific Data Format''' ('''ASDF''') is a proposed replacement to the [[FITS]] standard for astronomical images and other [[scientific data]].<ref name=Greenfield2015>{{cite journal \|last1=Greenfield \|first1=P. \|last2=Droettboom \|first2=M. \|last3=Bray \|first3=E. \|year=2015 \|title=ASDF: A new data format for astronomy \|journal=Astronomy and Computing \|volume=12 \|pages=240–251 \|doi=10.1016/j.ascom.2015.06.004 \|bibcode = 2015A&C....12..240G\|doi-access=free }}</ref> The [[metadata]] is contained in a [[YAML]] (Human-readable data serialization format) header followed by binary or ASCII data. ASDF is used, notably, as an interchange format for the data processing pipeline of the [[James Webb Space Telescope]].[https://jwst-docs.stsci.edu/understanding-jwst-data-files/jwst-data-formats#JWSTDataFormats-asdfASDFformat] ==Improvements to FITS== The Flexible Image Transport System ([[FITS]]) standard is a widely used data format in astronomy that incorporates metadata and ASCII or binary data in the same file.<ref>{{cite journal \|last1=Wells \|first1=D. C. \|last2=Greisen \|first2=E. W. \|last3=Harten \|first3=R. H. \|title=FITS: A Flexible Image Transport System \|journal=Astronomy and Astrophysics Supplement Series \|volume=44 \|pages=363–370 \|date=June 1981 \|bibcode=1981A&AS...44..363W}}</ref> However, the FITS standard has several limitations that make it difficult to use for complicated and hierarchical data. For example, the FITS 'cards' have keywords limited to only 8 characters, which can make it difficult to properly describe the value associated with it and the value for each keyword and its comment cannot be longer than 68 characters.<ref name=Greenfield2015 /> By using [[YAML]], more sophisticated and nested data structures may be used in ASDF than FITS. ==References== Line 43: {{Portal bar\|Physics\|Astronomy\|Stars\|Outer space\|Science}} ~~[[Category:Astronomy]]~~ [[Category:Astronomical imaging]] [[Category:Graphics file formats]]