FLAGCAL:A flagging and calibration package for radio interferometric data

TL;DR

FLAGCAL is a software pipeline designed for rapid flagging and calibration of GMRT radio interferometric data, enabling quick imaging by identifying corrupted data, solving for calibration, and preparing data for standard imaging tools.

Contribution

It introduces a parallelized C-based pipeline that streamlines flagging and calibration for GMRT data, facilitating faster imaging workflows.

Findings

Efficient identification and flagging of corrupted visibilities.

Calibration solutions computed and interpolated onto target data.

Pipeline enables quick look imaging with standard tools.

Abstract

We describe a flagging and calibration pipeline intended for making quick look images from GMRT data. The package identifies and flags corrupted visibilities, computes calibration solutions and interpolates these onto the target source. These flagged calibrated visibilities can be directly imaged using any standard imaging package. The pipeline is written in "C" with the most compute intensive algorithms being parallelized using OpenMP.