arts-tools 1.0

Tools to read or process ARTS data

ARTS tools

Processing scripts for Apertif Radio Transient System data

Requirements

• Python >= 3.6
• Numpy >= 1.17

Installation

pip install arts_tools

Fixing archival FITS files

FITS files retrieved from the Apertif Long-Term Archive (ALTA) from before 2020/04/08 can be made readable using arts_fix_fits. Four fixes are applied:

1. The NAXIS2 value in the header is changed from zero to the correct value
2. The data size is expressed in bytes instead of bits
3. The frequency and time axes of the data are swapped
4. The frequency order of the data and weights, scales, offsets, and frequencies columns is flipped

By default, the script appends _fixed to the filename. Run arts_fix_fits -h for more options.