Welcome to the SRT Single Dish Tools documentation!


The Sardinia Radio Telescope Single Dish Tools (SDT) are a set of Python (>=3.8) tools designed for the quicklook and analysis of single-dish radio data, starting from the backends present at the Sardinia Radio Telescope. They are composed of a Python 3.4+ library for developers and a set of command-line scripts to soften the learning curve for new users.

The Python library is written following the modern coding standards documented in the Astropy Coding Guidelines. Automatic tests cover a significant fraction of the code, and are launched each time a commit is pushed to the Github repository, through Github Actions.

In the current implementation, spectroscopic and total-power on-the-fly scans are supported, both as part of standalone flux measurements through “cross scans” and as parts of a map. Maps are formed through a series of scans that swipe the source region.

otf vs xscan

Figure 1. On-the-fly maps vs cross scan strategies for single dish observations. The first is able to produce images, the second is used to obtain quick flux measurements of point-like sources.



Other Python distributions

Install the dependencies with pip (including a few optional but recommended):

$ pip install astropy>=3.8 scipy numpy matplotlib pyyaml h5py statsmodels numba regions

Cloning and installation

Clone the repository:

(py3) $ cd /my/software/directory/
(py3) $ git clone https://github.com/discos/srt-single-dish-tools.git

or if you have deployed your SSH key to Github:

(py3) $ git clone git@github.com:discos/srt-single-dish-tools.git


(py3) $ cd srt-single-dish-tools
(py3) $ pip install .

That’s it. After installation has ended, you can verify that software is installed by executing:

(py3) $ SDTimage -h

If the help message appears, you’re done!


To update the code, simply run git pull and reinstall:

(py3) $ git pull
(py3) $ pip install .


Command line interface

API documentation

Indices and tables