#Telescope Simulator

Simulates visibilities given a sky model, and then images. The visibilities are simulated using MeqTrees and/or LWIMAGER. You can image using LWIMAGER, WSCLEAN, or the CASA imager (clean task).

To run this simulator, you need supply the simulator a configuration file; parameters.json is an example.

This is what you need to install

You can find most of debeian packages for most these here, or git repositories here

1. Meqtrees Timba
2. Meqtrees Cattery, Owlcat, Purr
3. simms
4. Pyxis
5. LWIMAGER
6. WSClean
7. Casacore, casacore data
8. CASAPY
9. PyMORESANE

Once you have all these installed, you can run the simulator in src folder. Run it as:

pyxis CFG=config_file OUTDIR=output_folder azishe

for help run:

pyxis help[azishe]

Fisrt make sure you have docker(>=1.3); not the default Ubuntu docker.io package.
https://docs.docker.com/installation/ubuntulinux/#ubuntu-trusty-1404-lts-64-bit

Once you got docker set up. You can run the simulator as follows:

1. Download casapy $ make download
2. Build container $ make build
3. Run simulation $ make run config=json_config_file

Please Note

• You only have to run make download once
• You will need to re-build the container (run make build) everytime the pipeline changes
• The container will always be rebuilt using cached data, unless you run make force-build, in which case everything will be rebuilt from scratch.
• You don't have to re-build the container each time you modify your config file. But your config file has to be placed in input/