VASCO: VLBI and SMILE-based CASA Optimizations
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vasco
VASCO: VLBI and SMILE source based CASA Optimizations
This is a helper tool for CASA based optimizations to use rPICARD and CASA for VLBI in general and in particular for the SMILE sources.
UNDER DEVELOPMENT : Version 0.3.0 releasing soon.
Installation
pip install vasco
Manual
git clone --recurse-submodules https://github.com/avikhagol/vasco.git
Usage
Pipeline
Usage: vasco pipe run [OPTIONS] [STPS]...
_______________________
pipeline steps:
- preprocess_fitsidi
- fits_to_ms
- phaseshift
- vasco_avg
- vascometa_ms
- vasco_snr
- vasco_fill_input
- vasco_split_ms
- rpicard
________________________
╭─ Arguments ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ stps [STPS]... steps for execution [default: preprocess_fitsidi, fits_to_ms, vasco_avg, vascometa_ms, vasco_snr, vasco_fill_input, vasco_split_ms, rpicard] │
╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
╭─ Options ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ --f,--fitsfilenames TEXT fitsfile names comma separated │
│ --t,--target TEXT Selected field / sourc name │
│ --configfile TEXT config file containing key=value [default: vasco.inp] │
│ --help Show this message and exit. │
╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
Manipulating FITS-IDI
To check known FITS-IDI issues run the following:
Usage: vasco fitsidi_check [OPTIONS] [FITSFILENAMES]... COMMAND [ARGS]...
validate and fix, known FITS-IDI problems
╭─ Arguments ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ fitsfilenames [FITSFILENAMES]... │
╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
╭─ Options ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ --fix --no-fix [default: no-fix] │
│ --desc --no-desc [default: no-desc] │
│ --help Show this message and exit. │
╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
Example
vasco validate VLBA_VSN005412_file3.uvfits
+--------------------+---------+-------+-------+----------------+----------+
| hdu | fixable | total | fixed | problem_code | affected |
+==========================================================================+
| ARRAY_GEOMETRY | 0 | 8 | 0 | [] | [] |
| ANTENNA | 0 | 16 | 0 | [] | [] |
| FREQUENCY | 0 | 8 | 0 | [] | [] |
| PHASE-CAL | 0 | 12 | 0 | [] | [] |
| PRIMARY | 1 | 10 | 0 | ["extra_byte"] | [""] |
| SOURCE | 0 | 8 | 0 | [] | [] |
| FLAG | 0 | 12 | 0 | [] | [] |
| UV_DATA | 0 | 8 | 0 | [] | [] |
| GAIN_CURVE | 0 | 8 | 0 | [] | [] |
| SYSTEM_TEMPERATURE | 0 | 8 | 0 | [] | [] |
+--------------------+---------+-------+-------+----------------+----------+
To get the information on the observation run the following:
vasco listobs [FITSFILENAMES]...
Development
After you clone the repo
$ cd vasco
$ pip install -e .[dev]
Attribution
When using VASCO, please add a link to this repository in a footnote.
Acknowledgement
"VASCO was developed within the "Search for Milli-Lenses" (SMILE) project. SMILE has received funding from the European Research Council (ERC) under the HORIZON ERC Grants 2021 programme (grant agreement No. 101040021).
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