Open StuartLittlefair opened 4 months ago
To clarify how the offset pattern is stored in the .fits
images, users define a list of absolute RA and Dec offsets, which are repeated until the end of the run. https://github.com/HiPERCAM/hcam_widgets/pull/28 updated the HiPERCAM control software so these offsets were stored in the 3rd extension of the .fits
files.
grab
already creates a WCS header, which is used for all .hcm
files output. To fix this issue we need grab
to:
The WCS produced by
grab
doesn't use the offset information which is now stored in the.fits
images saved from hipercam data, which is should, so each.hcm
file would have a better WCS