Subject: Making a region FITS file from FITS image
From: Takahiro Kikuchi <firstname.lastname@example.org>
Date: Wed, 9 May 2018 21:51:45 +0900
Sorry, I had mistakes, following is corrected one.
> 1. How do I convert (IM_X, IM_Y) in given pixel to (X, Y) in 0.05 arcsec
> 2018/05/09 21:09...email@example.com ...............
> Full_Name: Takahiro Kikuchi
> Submission from: (NULL) (184.108.40.206)
> Hello, help desk.
> Could you tell me answer for following question. I want to make a FITS
> from FITS image, pixel by pixel. Actually, the FITS image is 1 or 0 map in
> (IM_X, IM_Y) image pixel.
> #Now, I use 900x900 and 2.5 arcsec/pixel
> When more than ten thousand pixels are converted to (X, Y) in 0.05 arcsec
> FITS region, I'm going to do following conversion, (IM_X, IM_Y) -> (X,
> using header keywords. And making a FITS region listing more than ten
> pixels to apply my event file.
> 1. How do I convert (IM_X, IM_Y) in degrees to (X, Y) in 0.05 arcsec pixel?
> Please tell me equation with using FITS header keywords. Note that I
> know equation for converting (IM_X, IM_Y) -> (RA, DEC) in degree.
> 2. How do I create FITS region file which have list row for more than ten
> thousand pixel BOX?
> If you have any different idea, please tell me.
> Actually, I created a new FITS region file by using tool of "region" with
> source list, however, NAXIS2 doesn't have more than 1028. So I can not
> all pixels in the FITS region.
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