Analysis Workbench (AWB) Constraints

These constraints employ Analysis Workbench components to constrain access computations. You can also opt to exclude time intervals that satisfy a given constraint.

When an access involves a child object (i.e., sensor, transmitter, receiver, antenna, or radar), use the child object's parent or grandparent in the table below to determine whether STK can use the constraint for computing access to that child object. For example, if STK can use a constraint for accesses to all vehicles, then it can also use that constraint for any child object of a vehicle.

The table below describes the Analysis Workbench (AWB) component constraints available:

Constraint	Description
AWB Angle	Restricts access to intervals when the selected angle is within the specified minimum and maximum limits.
AWB Condition	Restricts access to intervals when the selected object satisfies the selected condition. This vector constraint is not valid for star objects.
AWB Scalar	Restricts access to intervals when the selected scalar calculation (CalcScalar) is within the specified minimum and maximum limits.
AWB Vector Magnitude	Restricts access to intervals when the selected vector is within the specified minimum and maximum limits.

For a constraint based on an AWB component (i.e., Angle, Condition, Scalar, Vector), STK can only compute it during times when the AWB component is available. Thus, the use of an AWB component as a constraint limits access times in two ways:
- Times are restricted to when STK can compute the AWB component .
- Times are restricted to when the constraint's value meets the specified limits you set.