Hello Fabrice,
The error states that the `bufwidth` must be a positive scalar; please check whether you have assigned the correct value to the variable `bufwidth`. Additionally, to simulate satellite coverage of the Iridium constellation over Mauritian airspace, ensure you have the correct geographical coordinates. Also, verify that 'Mauritius' is included in the 'landareas.shp' file when adding a grid of ground stations covering 'Mauritius'.
For further inromation on this topic, please refer to the following documentation:
Regards.
