(reference_list)=
# Reference List

- [The FITS Standard, version 4.0: Definition of the Flexible Image Transport System (FITS),](https://fits.gsfc.nasa.gov/standard40/fits_standard40aa-le.pdf) <https://fits.gsfc.nasa.gov/fits_standard.html>. (Published version, Pence et al, 2010, A&A, 524, A42, 40 pp.)
- Paper I: [Representations of World Coordinates in FITS](http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2002A%26A...395.1061G&db_key=AST&high=3db47576cf14130) (Greisen & Calabretta, 2002, A&A, **395**, 1061-1075, <http://www.aanda.org/articles/aa/pdf/2002/45/aah3859.pdf>)
- Paper II: [Representations of celestial coordinates in FITS](http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2002A%26A...395.1077C&db_key=AST&high=3db47576cf14130) (Calabretta & Greisen, 2002, A&A, **395**, 1077-1122, <http://www.aanda.org/articles/aa/pdf/2002/45/aah3860.pdf>)
- Paper III: [Representations of spectral coordinates in FITS](http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2006A%26A...446..747G&db_key=AST&data_type=HTML&format=&high=42261c2ea130558) (Greisen, Calabretta, Valdes & Allen, 2006, A&A, **446**, 747-771, <http://www.aanda.org/articles/aa/pdf/2006/05/aa3818-05.pdf>)
  - Authors’ web sites, supplemental background: [Eric Greisen](http://www.aoc.nrao.edu/~egreisen/inFITS.html), [Mark Calabretta](http://www.atnf.csiro.au/people/mcalabre/WCS/index.html), <http://www.atnf.csiro.au/people/mcalabre/WCS/index.html>
  - [An unofficial errata for Papers I, II, and II](http://fits.gsfc.nasa.gov/wcs/errata_20071222.pdf)I (Calabretta & Greisen, <http://fits.gsfc.nasa.gov/wcs/errata_20071222.pdf>)
- Paper IV: [Representations of Time Coordinates in FITS](http://hea-www.cfa.harvard.edu/~arots/TimeWCS/) (Rots, 2015, A&A, **574**, A36, <https://www.aanda.org/articles/aa/pdf/2015/02/aa24653-14.pdf>)
- Paper V: [Representations of distortions in FITS world coordinate systems](http://fits.gsfc.nasa.gov/wcs/dcs_20040422.pdf) (Calabretta, Valdes, Greisen, Allen, ADASS, 2004, **314**, <http://fits.gsfc.nasa.gov/wcs/dcs_20040422.pdf>)
- [Coordinate systems for solar image data](http://adsabs.harvard.edu/abs/2006A%26A...449..791T) (Thompson, 2006, A&A, **449**. 791-803, [http://www.aanda.org/articles/aa/pdf/2006/14/aa4262-05.pdf)](http://www.aanda.org/articles/aa/pdf/2006/14/aa4262-05.pdf%29)
- FITS: A Flexible Image Transport System (Wells et al, 1981, A&AS, **44**, 363)
- [Precision effects for solar image coordinates within the FITS world coordinate system](http://www.aanda.org/articles/aa/pdf/2010/07/aa10357-08.pdf) (Thompson, 2010, A&A, **515**, A59, <http://www.aanda.org/articles/aa/pdf/2010/07/aa10357-08.pdf>).
- [The SolarSoft WCS Routines: A Tutorial](ftp://sohoftp.nascom.nasa.gov/solarsoft/stereo/gen/documentation/wcs_tutorial.pdf) (Thompson, [http://hesperia.gsfc.nasa.gov/ssw/gen/idl/wcs/wcs_tutorial.pdf)](http://hesperia.gsfc.nasa.gov/ssw/gen/idl/wcs/wcs_tutorial.pdf%29)
- [SSTRED: Data- and metadata-processing pipeline for CHROMIS and CRISP](https://ui.adsabs.harvard.edu/abs/2021A%26A...653A..68L/abstract) (Löfdahl et al. 2021, A&A, **653**, A68)
- Solar Orbiter SPICE Data Product Description Document (Haugan and Fredvik, 2023, <https://spice-wiki.ias.u-psud.fr/doku.php/data:data_analysis_manual>)
- [S-META-SIM]: SOLARNET Metadata Recommendation for Simulated Data (Haugan and Fredvik, 2023, <http://sdc.uio.no/open/solarnet/> , <http://arxiv.org/abs/2403.12241>
- Binary table extension to FITS (Cotton et al., 1995, A&AS, **113**, 159-166,

<http://adsabs.harvard.edu/abs/1995A%26AS..113..159C>).

- [Checksum Keyword Convention](file:///Users/steinhh/Dropbox%20%28UiO%29/sf/idl/solarnet/fits-docs/Checksum%20Keyword%20Convention) ([http://fits.gsfc.nasa.gov/registry/checksum.html)](http://fits.gsfc.nasa.gov/registry/checksum.html%29)
- [The FITS Header Inheritance Convention](https://fits.gsfc.nasa.gov/registry/inherit/fits_inheritance.txt) (<https://fits.gsfc.nasa.gov/registry/inherit/fits_inheritance.txt>
- [The CONTINUE Long String Keyword Convention](https://fits.gsfc.nasa.gov/registry/continue_keyword.html) (<https://fits.gsfc.nasa.gov/registry/continue_keyword.html>)
- [Space Physics Archive Search and Extract (SPASE) instrument types](http://www.spase-group.org/data/reference/spase-2_2_2/spase-2_2_2_xsd.htm#InstrumentType) ([http://www.spase-group.org/data/reference/spase-2_2_8/spase-2_2_8_xsd.htm - InstrumentType](http://www.spase-group.org/data/reference/spase-2_2_8/spase-2_2_8_xsd.htm#InstrumentType) and <http://www.spase-group.org/docs/dictionary/spase-2_2_8.pdf>)
- [Recommendations for Data & Software Citation in Solar Physics](http://sdac.virtualsolar.org/docs/SPD2012/2012_SPD_citation.pdf) ([2012AAS…22020127H](http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012AAS...22020127H&db_key=AST&link_type=ABSTRACT&high=4f79c699ae09002))
- [Best Practices for FITS Headers](http://sdac.virtualsolar.org/docs/SPD2012/2012_SPD_FITS_headers.pdf) ([2012AAS...22020128H](http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012AAS...22020128H&db_key=AST&link_type=ABSTRACT&high=4f79c699ae09002), <http://sdac.virtualsolar.org/docs/SPD2012/2012_SPD_FITS_headers.pdf>)
- VSO Checklists, <http://virtualsolar.org/checklists>
- VSO Minimum Information for Solar Observations, <http://docs.virtualsolar.org/wiki/MinimumInformation>
- The Unified Content Descriptors, Version 1+ (UCD1+) <http://www.ivoa.net/documents/latest/UCDlist.html>

**Other sources of keywords with established use:**

- [Metadata Definition for Solar Orbiter Science Data](https://issues.cosmos.esa.int/solarorbiterwiki/display/SOSP/Metadata+Definition+for+Solar+Orbiter+Science+Data) (<https://issues.cosmos.esa.int/solarorbiterwiki/display/SOSP/Metadata+Definition+for+Solar+Orbiter+Science+Data>)
- STEREO Standard FITS keywords (<http://jsoc.stanford.edu/doc/keywords/STEREO/STEREO_site_standard_fits_keywords.txt>)
- SDO/AIA FITS keyword definitions (<https://www.lmsal.com/sdodocs/doc?cmd=dcur&proj_num=SDOD0019&file_type=pdf>)
- IRIS FITS keyword definitions ([http://www.lmsal.com/iris_science/irisfitskeywords.pdf)](http://www.lmsal.com/iris_science/irisfitskeywords.pdf%29)