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15th Feb 2024: Astro Pixel Processor 2.0.0-beta29 released - macOS native File Chooser, macOS CMD-Q fixed, read-only Fits on network fixed and other bug fixes

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FITS header information

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(@scotty38)
White Dwarf
Joined: 3 years ago
Posts: 17
Topic starter  

Hi all,

This may have an obvious answer but I'm not sure what it is.

I have integrated some files and when I look at the finished file its FITS info has been modified so, for example, if I tried to run PCC in PI it would fail.

Ignore the PI example but am I missing something here?

Many thanks in advance....


   
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(@vincent-mod)
Universe Admin
Joined: 7 years ago
Posts: 5707
 

It has its own header on the integrated file yes, but that should be for the integration and not the original files. I don't know what PI needs for PCC in that sense though.


   
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(@scotty38)
White Dwarf
Joined: 3 years ago
Posts: 17
Topic starter  

Thanks it's the integrated file I'm speaking of, not the originals, they're fine of course. There may be many others needed but take for example RA and DEC info, they're missing from the integrated file and PCC needs those at the very least so it knows where the image is so it can compare with its databases.


   
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(@vincent-mod)
Universe Admin
Joined: 7 years ago
Posts: 5707
 

Right, yes, I guess (I have to ask Mabula for that) that some info is removed as these values are probably different between frames and wouldn't make sense in the integration header. Not sure why that would be for Ra and Dec though, I can ask.


   
Martin Scott reacted
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(@scotty38)
White Dwarf
Joined: 3 years ago
Posts: 17
Topic starter  

Thanks, much appreciated. This is more of a learning exercise for me rather than any real fundamental issue if that makes sense.


   
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(@wvreeven)
Quasar
Joined: 6 years ago
Posts: 2133
 

@scotty38 It is true that they are not included in the FITS header of the integration result and Vincent has reported that to Mabula.

In the mean time as a workaround, in the PCC window you can either enter the coordinates manually or search for the object that you imaged so PI enters those coordinates. It is not a solution and I repeat that it has been reported to Mabula but that way at least you can go ahead and continue post-processing in PI. you also need to enter the correct observation date.

If you need further help with PCC then please ask in the PI forum.


   
Martin Scott reacted
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(@scotty38)
White Dwarf
Joined: 3 years ago
Posts: 17
Topic starter  

Thank you very much appreciated and yes I realise I can enter the info manually. I suppose I wanted to make sure I wasn't doing anything odd on my side to "remove" the info as it were.

Oh and this is not a PI vs APP thing at all, it's all for me to understand what I am doing and if I am doing things incorrectly.


   
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(@wvreeven)
Quasar
Joined: 6 years ago
Posts: 2133
 

@scotty38 Thanks Martin. It is not regarded as an APP vs PI thing at all. It can be hard to be stuck between a rock and a hard place, or in this case between the APP and PI forums where one will point at the other and vice versa. It looks like you're doing this correctly.


   
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(@vincent-mod)
Universe Admin
Joined: 7 years ago
Posts: 5707
 

No problem Martin, we don't mind at all talking about the packages people use, it's more just to keep the thread focused in that sense. 😉 If it makes sense to have it included, I'm sure Mabula will add it. Thanks for notifying us about it!


   
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(@scotty38)
White Dwarf
Joined: 3 years ago
Posts: 17
Topic starter  

Thanks both really appreciated. I'm still fairly new to all of this so I'm always wary of the problem being me doing the wrong thing and making "obvious" mistakes or just plain misunderstanding how things work.


   
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(@vincent-mod)
Universe Admin
Joined: 7 years ago
Posts: 5707
 

That's exactly how I learn things, so good job. 🙂


   
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(@scotty38)
White Dwarf
Joined: 3 years ago
Posts: 17

   
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(@vincent-mod)
Universe Admin
Joined: 7 years ago
Posts: 5707
 

Yes, that's correct, Mabula will have a look at it. 😉 Some of that info is changing which is why it wouldn't make sense to put that in the end-result, but for the Ra and Dec I do think that should be possible. We'll update this thread when Mabula had time to look at it.


   
Martin Scott reacted
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(@scotty38)
White Dwarf
Joined: 3 years ago
Posts: 17
Topic starter  

Great thank you!


   
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 HE04
(@heylers)
Red Giant
Joined: 1 year ago
Posts: 25
 

Looks like the image coordinates are still not in the FITS header for a stacked image, even if the subs have them. That seems to be a major shortcoming especially considering how easily it could be fixed ... even if it was approximate, that would be a great help with further file processing!


   
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