hydra_tod Documentation

Bayesian calibration and map-making for radio intensity mapping experiments

hydra_tod implements joint Bayesian inference of sky temperature maps, instrument gains, and correlated noise parameters from radio telescope time-ordered data (TOD). It uses Gibbs sampling with MPI parallelization to efficiently handle multi-receiver, multi-scan datasets.

The package accompanies the paper:

Zhang, Z., Bull, P., Santos, M. G., & Nasirudin, A. (2026). Joint Bayesian calibration and map-making for intensity mapping experiments. RAS Techniques and Instruments, rzag024.

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