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Getting Started with the TART telescope

This will describe some basic things that can be done with a TART telescope.

Imaging from Visibilities

The script image_from_vis.py creates a synthesis image from visibilities downloaded from the telescope.

Three requests to the telescope get the configuration, calibration gains, and visibility data

config = api_handler.get_config(api)
gains = api.get('calibration/gain')
visibility_data = api.get('imaging/vis')

This data is processed using synthesis imaging to produce a crude image.

Plotting Raw Data

The script time_sampled_signals.py uses a raw data (HDF) file manually downloaded from the telescope (via the web interface), opens the file and prints some samples from antenna 0.

Imaging from Raw Data

The script image_from_raw.py create a very basic image from visibilities downloaded from the telescope.

First download a data file from the telescope web front end (remember to set the telescope to 'raw' mode and check the 'save data' option) to get a recent file. Then execute the following file:

python3 image_from_raw.py --file  ~/Downloads/data_2019-07-24_22_47_14.353231.hdf

Image generated from raw data