When I was Image Calibrating my Ha flats (50 flats images) the first 26 went fine, images 27-50 blew up on me with the following error. Consequently, I am unable to even open the Flats image? All 50 OIII images have this error? Any ideas what is causing this error? Do I need to re-shoot my Flats?
Here is a text of the error message. Image below. Thanks in advance for your help.
PCL Legacy FITS Format Support: Unable to open FITS file: D:/NGC6888/Flats/Ha/Target 1_Flat_Ha_2.57sec_0027_2019-07-10_-10C.fit
CFITSIO error message stack:
01 : ffopen could not interpret primary array header of file:
02 : D:\NGC6888\Flats\Ha\Target 1_Flat_Ha_2.57sec_0027_2019-07-10_-10C.fit
*** Unable to open file: D:/NGC6888/Flats/Ha/Target 1_Flat_Ha_2.57sec_0027_2019-07-10_-10C.fit
Mike