hera-sim 4.3.4

Features

• Systematic Models: Many models of instrumental systematics in various forms, eg. thermal noise, RFI, bandpass gains, cross-talk, cable reflections and foregrounds.

• HERA-tuned: All models have defaults tuned to HERA, with various default “sets” available (eg.H1C, H2C)

• Interoperability: Interoperability with pyuvdata datasets and pyuvsim configurations.

• Ease-of-use: High-level interface for adding multiple systematics to existing visibilities in a self-consistent way.

• Visibility Simulation: A high-level interface for visbility simulation that is compatible with the configuration definition from pyuvsim but is able to call multiple simulator implementations.

• Convenience: Methods for adjusting simulated data to match the times/baselines of a reference dataset.

Documentation

At ReadTheDocs. In particular, for a tutorial and overview of available features, check out the tour.

Installation

The best and easiest way to install hera_sim is with uv:

uv add hera_sim

Or if you are using the pip-style interface:

uv pip install hera_sim

You can install optional extras as well – for exapmle to get all the dependencies required for simulating visibilities:

uv add hera_sim --extra vis

Available extras are vis, bda, and cal (for also installing hera-calibration).

conda install -c conda-forge numpy scipy pyuvdata attrs h5py healpy pyyaml

git clone git@github.com/hera-team/hera_sim.git
cd hera_sim
uv sync --all-extras

Versioning

We use semantic versioning (major.minor.patch) for the hera_sim package (see SemVer documentation). To briefly summarize, new major versions include API-breaking changes, new minor versions add new features in a backwards-compatible way, and new patch versions implement backwards-compatible bug fixes.