Measuring radio flux density with ds9
v 1.0: initial release v 1.1: major bugfixes v 1.2: refactor to deal with spectral cubes
https://www.extragalactic.info/~mjh/radio-flux.html
git clone https://github.com/mhardcastle/radioflux
cd radioflux/
sudo python setup.py install
Tested on Ubuntu 22 + DS9 8.3 and DS9 8.4b2