woden_uv2ms.py

Helper script to convert uvfits files to measurement sets using pyuvdata.

Command line running options

Script to transform uvfits filesinto measurement sets. Uses same name of uvfits for the output measurement set

usage: woden_uv2ms.py [-h] [--single_uvfits SINGLE_UVFITS]
                      [--uvfits_prepend UVFITS_PREPEND]
                      [--band_nums BAND_NUMS] [--no_delete]

Named Arguments

--single_uvfits

Convert this single uvfits file into a measurement set e.g. –single_uvfits=./data/nice_uvfits_band01.uvfits

Default: False

--uvfits_prepend
Use in conjunction with –band_nums to process multiple uvfits files, where ‘{:02d}.uvfits’.format(band_num) is tacked onto the end of –uvfits_prepend. For example, setting:

–uvfits_prepend=example_band –band_nums=1,2

will tranform both example_band01.uvfits and example_band02.uvfits

Default: False

--band_nums

Add these numbers to the end of –uvfits_prepend to convert multiple uvfits files. Alternatively, enter required numbers delineated by commas, e.g. –band_nums=1,7,9

Default: 'all'

--no_delete

Defaults to deleting a measurement set with the destination name of the measurement set to be written. by commas, e.g. –band_nums=1,7,9

Default: False

Function documentation

Script to use pyuvdata to convert uvfits files to measurement sets`

woden_uv2ms.get_parser()[source]

Runs the argument parser to get command line inputs - used by sphinx and argparse extension to unpack the help below into the online readthedocs documentation.

Returns:

parser – The populated argument parser used by uv2ms.py

Return type:

argparse.ArgumentParser

woden_uv2ms.main()[source]

Converts UVFITS files to Measurement Sets (MS) using WODEN.

Usage: python woden_uv2ms.py –single_uvfits <filename> [–no_delete] python woden_uv2ms.py –uvfits_prepend <filename_prefix> –band_nums <band_numbers> [–no_delete]

Arguments: –single_uvfits <filename> : Convert a single UVFITS file to an MS. –uvfits_prepend <filename_prefix> : Convert multiple UVFITS files to MSs, where <filename_prefix> is the prefix of the UVFITS files. –band_nums <band_numbers> : Comma-separated list of band numbers to convert. Default is all bands (1-24). –no_delete : Do not delete intermediate files.

Example usage: python woden_uv2ms.py –single_uvfits example.uvfits python woden_uv2ms.py –uvfits_prepend example_ –band_nums 1,3,5 –no_delete

woden_uv2ms.make_ms(uvfits_file, no_delete=False)[source]

Takes a path to a uvfits file, checks it exists, and converts it to a measurement set of the same name at the same location