In GAIA you can make your catalogue interactively or from the output of the PHOT which is linked through the Starlink suite. If your image has no WCS you can still make a catalogue based on X,Y and plot over the image. GAIA and the original Sk圜at Tool can load directly many online and offline catalogues in various formats and over-plot on the image. Take a look at their websites there is a lot of useful info out there.Ģ. Mind you the GAIA itself is based on “The ESO Sk圜at Tool” which is also quite a powerful tool and its wort to consider alone. Take a look at that … this is what I’ve been using from my PhD times again by inertia but I’m totally happy with it. The whole suit is about 2GB when installed which contains almost everything imaginable to reduce, analyse and process almost any kind of astronomical data. The soft is a part of Starlink Software Suite which is no longer officially supported by the original institution but good people at JAC still continue that support and regular releases. I use GAIA (Starlink) to view any 2-3D FITS files. Hi there, I completely understand what do you mean using by inertia:) Here is my approach to the problem.ġ. One thing I always end up wanting is a Gaussian fitter… but I keep thinking that someone MUST have programmed one as an analysis tool… I also customize my buttons bar so that “match frames”, “match colorbars”, and “match scales” are included in the “frame” menu, since I use those often.įinally, Bill Joye and the SAORD team have done a very good job of keeping DS9 up to date and are very responsive to bug reports and feature requests. Once you learn some of the most common command-line options, it becomes very flexible. Most of my ds9 sessions start from the command line and look something like “ds9 *.fits -cmap hsv -log -scale limits -0.1 1 -wcs galactic -match frames wcs -lock crosshairs wcs”. I’m not sure how to set the lower limit while keeping the upper set at max, though, that’s a good question. Re: Marshall – you could just alias ds9 to “ds9 -log -scale 0 (something)”. However, I’ve moved to APLpy for publication images because you’re less limited by screen size (though it is possible to save ds9 images larger than your screen if you use XPA commands). It’s a little learning curve, but mostly just learning the syntax of the things you already knew how to do interactively. I’ve written xpaset scripts to make figures for publication, and they work pretty well. I usually stick to region files or simple ascii coordinate lists. Are you asking whether it’s possible to make a catalog in image coordinates? Don’t know about that. Still ds9.reg files are easy to edit and reasonably flexible.ģ. ds9, and I firmly support it as it’s the only fits viewer that will display multi-GB files on a reasonable timescaleĢ.
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