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1.7.3 (Unreleased)

  • Pin astropy min version to 5.0.4. [#191]

1.7.2 (2021-11-29)

Bug Fixes

  • Fixed bug affecting data with no astrometry database solutions so that they can now be processed successfully. [#189]

1.7.1 (2021-10-20)

  • Filenames for new headerlet files based on updated/new IDCTABs now based on hash of WCSNAME instead of WCSNAME itself. [#183]

1.7.0 (2021-08-10)

  • Make the code more robust when defining extname attribute of a WCS for multi-extension FITS files when their primary header contains 'EXTVER' keyword but not the 'EXTNAME' keywords. [#179]
  • Fix a bug in stwcs.wcsutil.altwcs.archive_wcs due to which a str type ext would raise an exception. [#177]
  • Modify updatewcs to insure that the distortion keywords remain in the same part of the primary header as the rest of the calibration reference file names. [#175]
  • Update build_reference_wcs to accept list of filenames as well single filenames or a single HDUList object as input. [#173]
  • Add support for computing new a priori WCS solutions when running updatewcs. [#170]
  • Add new parameter to updatewcs to limit the astrometry database WCSs appended to the file to only those based on the same IDCTAB as specified in the image header. [#170]
  • Add new parameter to updatewcs to specify whether or not to remove duplicate headerlet extensions from the FITS file when updating the image using the astrometry database. [#172]

1.6.1 (2020-12-09)

  • Fix a bug in wcsutil.wcscorr.init_wcscorr() that would result in crash when run on drizzled images that do not have OPUS WCS (WCS key 'O'). [#165]
  • Make WCS and headerlet name comparisons case-insensitive when applying headerlets. [#163]
  • Deprecate accuracy argument in all_world2pix and replace it with tolerance in order to have compatible function signature with astropy's all_world2pix()'. [#166]

1.6.0 (2020-07-16)

  • Prevent same WCS from being updated from astrometry database headerlet. [#111]
  • Revise how headerlets are applied as primary WCS [#122]
  • Add comments to WCS keywords for IDC*, OCX, OCY, and alternate WCS. [#127]
  • Primary WCS keywords no longer contain trailing spaces which, in the past, lead to duplicate keywords in image headers. [#131]
  • AltWCS: Non-standard WCS keywords defined by, e.g., TweakReg are now archived, read, and restored together with standard WCS keywords. [#135]
  • WCS keywords that are not specific to an alternate WCS (such as MJDREF) are no longer archived. [#141]
  • Fix a bug in _restore() due to which TDDALPHA and TDDBETA were not reset to 0.0 when restoring wrom the 'OPUS' WCS with key 'O'. [#141]
  • Increased reliability of detecting alternate WCS in image headers. [#141]
  • Abbreviated comments for D2IM, CPDIS lookup table distortions. [#142]
  • Add comments to WCSNAMEa header keywords. [#143]
  • Do not archive primary WCS when applying headerlet as primary when existing primary WCS was created from the same headerlet that is being applied, based on the value of 'HDRNAME' keyword. [#147]
  • Added archive_wcs() function with more advanced control over how to archive primary WCS and with more capabilities, such as auto-renaming. [#153]
  • Remove HST-specific WCS keywords from SCI extensions that, following HST convention, are supposed to be present in primary header only. [#159]
  • Do not archive primary WCS when applying headerlet as primary if distortion model changes. [#161]

1.5.3 (2019-09-23)

  • Add stdout to logging handlers. [#108]
  • Correct the logic for replacing headerlets with one which has a different distortion model. [#109]

1.5.2 (2019-08-26)

  • Correct a problem where best WCS solutions were not applied with repeated reruns of updatewcs. [#95]

1.5.1 (2019-07-03)

  • Improve Travis test matrices to include testing with public and dev versions of dependencies. [#87]
  • Fixed a bug in converting a PC to a CD matrix. [#77]
  • Filter out expected warnings from tests. [#78]
  • Allow updatewcs to be called with HDUList objects as input. [#80]
  • Update the XML parser for the astrometry database and switch the default to use the MAST TEST server which is publicly accessible. [#74]
  • Gracefully ignore when the astrometry database returns an empty result for an image. [#84]
  • Insure updatewcs works with WFPC2 data while supporting HDUList inputs. [#85]

1.4.2(2018-08-07)

  • Fix a problem with the build script. [#64]

1.4.1(2018-08-06)

  • Fix a bug in restoring headerlets from a HeaderletHDU to a SCI extension [#60]
  • Fix logic to gracefully handle lack of any WCS solutions from the astrometry database for an exposure. [#62]

1.4.0(2018-01-22)

  • Fix a bug in creating headerlets from a I/O stream. [#39]
  • Added an interface to a new astrometry database which will contain new astrometrically-accurate solutions for the pointing for HST observations. [#40]

1.3.2 (20017-07-05)

  • The clobber parameter in Headerlet.tofile()` was replaced with overwrite. [#24]
  • Fixed a python compatibility bug. [#30]
  • Warning messages from astropy.wcs are filtered out when they are not relevant. [#31]

1.2.5 (2016-12-20)

  • updatewcs() now reads all extension immediately after opening a file to fix a problem after astropy implemented fits lazy loading. [#21]
  • Fixed a bug in updating the D2IM correction in a science file when the a new distortion file was supplied through D2IMFILE keyword. [#22]

1.2.4 (2016-10-27)

  • Fix a bug in removing LookupTable distortion. [#3]
  • Fix a KeyError crash in applying headerlets. [#9]
  • Catch KeyError when deleting header keywords. [#13]
  • Fix for REFFRAME = OTHER. [#14]
  • In cases when the warning is expected, catch INFO messages coming from astropy.wcs. [#16]

1.2.3 (2016-07-13)

  • Move to github.