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deepskystacker / DSS

DeepSkyStacker
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FITS header DATE-OBS missing in output file #197

Closed dkracht closed 11 months ago

dkracht commented 11 months ago

When DDS writes the results file (autosave.fit) with a nice FITS header, the keyword/value pair "DATE-OBS" is not used although beeing exisitent in the subframes. Shoul be the UTC date and time at the start of the (first) exposure.

perdrix52 commented 11 months ago

The FITS output files on my system contain DATE-OBS based on the first light image included in the stack.

SIMPLE = T / file does conform to FITS standard BITPIX = -32 / number of bits per data pixel NAXIS = 3 / number of data axes NAXIS1 = 5192 / length of data axis 1 NAXIS2 = 3452 / length of data axis 2 NAXIS3 = 3 / length of data axis 3 EXTEND = T / FITS dataset may contain extensions COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H ISOSPEED= 800 EXPTIME = 300. / Exposure time (in seconds) EXPOSURE= 300. / Exposure time (in seconds) NCOMBINE= 5 / Number of stacked frames SOFTWARE= 'DeepSkyStacker 5.1.4 Beta 1' DATE-OBS= '2016-10-11T00:41:57'

Otherwise see #195