A python package for calculating the expected sensitivities of 21cm experiments to the Epoch of Reionization power spectrum. For details of the observing strategy assumed by this code, and other relevant scientific information, please see

Pober et al. 2013AJ….145…65P


Pober et al. 2014ApJ…782…66P.


Clone/download the package and run pip install [-e] . in the top-level.

If you are a conda user (which we recommend), you may want to install the following using conda rather than them being automatically installed with pip:

$ conda install numpy scipy pyyaml astropy


There are two ways to use this code: as a python library or via the CLI. The simplest possible usage is by using the CLI as follows:

$ sense calc-sense <SENSITIVITY_CONFIG_FILE.yml>

Other options to the calc-sense program can be read by using:

$ sense calc-sense --help

An example config file is in this repository under example_configs/sensitivity_hera.yml, which details the various parameters that can be set. In all, three configuration files are required – one defining an observatory, another defining an observation, and the sensitivity one already mentioned.

The CLI can also be used in a two-step process, by running:

$ sense grid-baselines <OBSERVATION_CONFIG_FILE.yml>

and then:

$ sense calc-sense <SENSITIVITY_CONFIG_FILE.yml> --array-file=<ARRAY_FILE.pkl>

where the ARRAY_FILE is produced in the first step (and its location is printed during the execution).


If you use this code in any of your work, please acknowledge

Pober et al. 2013AJ….145…65P


Pober et al. 2014ApJ…782…66P

and provide a link to this repository.

Indices and tables