Install casacore-data by entering the following commands in the terminal:
sudo apt update sudo apt install casacore-data
Data for Common Astronomy Software Applications core library
This package will install a basic set of data tables to be used by Common Astronomy Software Applications core library at runtime and test: . * IGRF: International Geomagnetic Reference Field data * Sources: Table of ICRF2 reference source coordinates * Lines: Table of spectral line frequencies * Observatories: Table of radio observatory coordinates * TAI_UTC: Difference table between TAI and UTC . Note that the ephemerides and earth orientation data are not available yet.