Significant milestones in the development of FITS.
|1979||Initial FITS Agreement and first interchange of files|
|1981||Published original (single HDU) definition (Wells et al. 1981)|
|1981||Published random groups definition (Greisen & Harten 1981)||Sect. 6|
|1982||Formally endorsed by the IAU (IAU 1983)|
|1988||Defined rules for multiple extensions (Grosbøl et al. 1988)|
|1988||IAU FITS Working Group (IAUFWG) established|
|1988||Extended to include ASCII table extensions (Harten et al. 1988)||Sect. 7.2|
|1988||Formal IAU approval of ASCII tables (IAU 1988)||Sect. 7.2|
|1990||Extended to include IEEE floating-point data (Wells & Grosbøl 1990)||Sect. 5.3|
|1994||Extended to multiple IMAGE array extensions (Ponz et al. 1994)||Sect. 7.1|
|1995||Extended to binary table extensions (Cotton et al. 1995)||Sect. 7.3|
|1997||Adopted 4-digit year date format (Bunclark & Rots 1997)||Sect. 4.4.2|
|2002||Adopted conventions for world coordinate systems (Greisen & Calabretta 2002)||Sect. 8|
|2002||Adopted conventions for celestial coordinates (Calabretta & Greisen 2002)||Sect. 8.3|
|2004||Adopted MIME types for FITS data files (Allen & Wells 2005)||App. G|
|2005||Extended to support variable-length arrays in binary tables||Sect. 7.3.5|
|2005||Adopted conventions for spectral coordinate systems (Greisen et al. 2006)||Sect. 8.4|
|2005||Extended to include 64-bit integer data type||Sect. 5.2.4|
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