https://github.com/steviecurran/multi-dish
Scripts to reduce data from large radio telescopes (GMRT, VLA)
https://github.com/steviecurran/multi-dish
data-analysis interferometer pipeline radio-astronomy telescopes
Last synced: 12 months ago
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Scripts to reduce data from large radio telescopes (GMRT, VLA)
- Host: GitHub
- URL: https://github.com/steviecurran/multi-dish
- Owner: steviecurran
- Created: 2023-03-23T07:52:42.000Z (almost 3 years ago)
- Default Branch: main
- Last Pushed: 2025-02-14T21:35:18.000Z (12 months ago)
- Last Synced: 2025-02-14T22:28:13.315Z (12 months ago)
- Topics: data-analysis, interferometer, pipeline, radio-astronomy, telescopes
- Language: Shell
- Homepage:
- Size: 17.6 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
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Metadata Files:
- Readme: README.md
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README
# multi-dish
Scripts to reduce data from large radio telescopes (GMRT, VLA)
These scripts run the [MIRIAD](https://www.atnf.csiro.au/computing/software/miriad/) package for the reduction of interferometric (mult-dish) data. While this is fine for the six dish Australia Telescope Compact Array (ATCA), which has 15 antenna baseline pairs and limited bandwidth, for the large interfometers - the Giant Metrewave Radio Telescope ([GMRT](http://www.gmrt.ncra.tifr.res.in)) and Very Large Array ([VLA](https://public.nrao.edu/telescopes/vla/)), up to 30 dishes (435 antenna pairs) and very low frequnecies (for hydrogen at high redshift) in a hostile radio frequency environment, mean that some automation is required.
prep-freq.csh - loads and calibrates the data
prep-freq.csh - is a version of this which splits the data down into smaller frequency bands (for wide-band data)
rms.csh - will measure the rms noise level of each baseline pair
flag_rms.csh - will remove the baseline pairs with a noise level above a specified threshold
image-*csh - will produce an image and 3D cube of the remaining data (by frequency band)
