.. _api-sb_definition_observing_constraints:

**************************************************
ska_oso_pdm.sb_definition.observing_constraints
**************************************************

The ska_oso_pdm.sb_definition.observing_constraints module models SB entities
concerned with observational limits such as solar, lunar and planetary
separation constraints, altitude limits, local sidereal time windows and
receptor selection constraints. The contents of the module are presented in
the diagram below.

.. figure:: ../../uml/ska_oso_pdm_sb_definition_observing_constraints.svg
   :align: center

   Class diagram for the observing_constraints module

An example serialisation of this model to JSON is shown below.

.. literalinclude:: ../../../../tests/unit/ska_oso_pdm/serialisation_cases/sb_definition/observing_constraints_payload.json
    :language: JSON

.. automodule:: ska_oso_pdm.sb_definition.observing_constraints
    :members:
    :exclude-members: model_computed_fields,model_config,model_fields,model_post_init,handle_units