How to tell Flats with Bias Subtraction versus Flat Darks

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GaryS
Posts: 192
Joined: Sun Mar 31, 2019 5:18 pm
Location: Boston, USA/Jackson Hole, USA

How to tell Flats with Bias Subtraction versus Flat Darks

#1

Post by GaryS »

Hi
I've been testing the effects of these two options for making flats and happen to notice that there's no record of whether Bias or Flat Darks were subtracted from the averaged flat frames. There's no indication on the Notepad file and none on the mini Fits Header that is produced. so, my questions:

1. How can I tell which Flat was made with Bias subtraction versus Flat Dark subtraction?

2. Is it possible in the (near) future to have a more complete and useful FITS Header?

Thank you,
Gary
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Re: How to tell Flats with Bias Subtraction versus Flat Darks

#2

Post by admin »

Hi Gary,

yes, you are right, I think there is no record of which was chosen stored, I will have to fix that.

cheers,

Robin
GaryS
Posts: 192
Joined: Sun Mar 31, 2019 5:18 pm
Location: Boston, USA/Jackson Hole, USA

Re: How to tell Flats with Bias Subtraction versus Flat Darks

#3

Post by GaryS »

Much appreciated Sir….
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