HSTCAL

Calibration software for HST/WFC3, HST/ACS, and HST/STIS.

Install using Conda (Complete Calibration Environment)

HSTCAL can be obtained as part of the Space Telescope Environment (stenv), a conda environment. The instructions found at this URL describe choosing the stenv release, building the stenv environment from the YAML file, and activating your new environment. Once your environment is activated, you can invoke any of the HSTCAL executables.

# Use HSTCAL
$ calacs.e [...]
$ calwf3.e [...]
$ cs[...].e

Install using Conda (HSTCAL only)

The HSTCAL package is resident on conda-forge and you can use the following command to perform the installation:

$ conda install -c conda-forge hstcal==X.Y.Z

The X.Y.Z is the desired version number.

Source Installation

See detailed installation instructions.

Environment Variables

The following environment variables must be defined for the respective cal[...].e pipelines to be able to find calibration reference files. For more information, see the CRDS user guide.

ACS

jref must point to a path containing ACS reference files. For example:

export jref="/grp/crds/cache/references/hst/"

For more information, please see the ACS Data Handbook.

WFC3

iref must point to a path containing WFC3 reference files. For example:

export iref="/grp/crds/cache/references/hst/"

For more information, please see the WFC3 Data Handbook.

STIS

oref must point to a path containing STIS reference files. For example:

export oref="/grp/crds/cache/references/hst/"

For more information, please see the STIS Data Handbook.

Dev notes

Nightly regression test results are available from RegressionTests hstcal workflow.

HSTCAL conda-forge recipe is hosted at hstcal-feedstock.

DMS deliveries are managed by stasis.

Help Desk

If you need further assistance, please contact HST Help Desk.