PixInsight Copy Coordinates Script

NGC 2077 Telescope Live

PixInsight Copy Coordinates Script

Here’s another useful PixInsight script that comes in handy when you need to replace FITS Header data that can get lost when using Pixel Math to generate a new image.  This is especially important when you need to retain astrometric solution data that you previously had in the FITS Header from a previous plate solution you may have completed in an earlier process.  

As an example, I wanted to create an annotated image of 1-Click NGC 2077 data.  I’d done a Pixel Math combine of the starless image with the stars and the resulting new image lost all of the FITS Header information.  With this information lost, creating an annotated image isn’t possible.  The choice at this point is to do another plate solution using the Image Solver script or to use the Copy Coordinates script and copy the FITS Header information from a prior image file that contains this information.  To get to the Copy Coordinates Script, go to Scripts -> Utilities -> Copy Coordinates.  

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Copy Coordinates Script Selection Tree

When you open it, you’ll get the dialog as shown below.  You’re asked for the Source Image - this is the image that contains the FITS Header information that you need to copy from.  After that, there are 2 choices (1) Simple Copy where you're just copying the info from the source image to the FITS Header of the image you need to fill in, and (2) Transform Copy - this selection is used if the image you need to fill the FITS Header with if this image had some change made that would degrade the astrometric solution such as performing a Dynamic Crop.  

Copy Coordinates Script Dialog

When you're ready, click Ok and the work is done.  All the FITS Header data including the astrometric info will be copied over to the file you’ve designated.

Clear skies….

Astro Image Credits:

NGC 2077 - Telescope Live 1-Click Observation Data, Processed using PixInsight by Reggie Jones