Analysis Workbench for Access

When you have STK generate access intervals for a pair of objects, STK generates an access "object" for the pair that is not part of the Object Browser but is available in STK's Analysis Workbench (AWB) capability. This access object provides certain access components that you can use in AWB. The following sections describe these components.

Vector Geometry components

Access generation provides Points, Axes, and Systems, built from each of the access’s objects, as well as the relative position and relative velocity vectors from each object’s perspective. The elevation angle of the relative position vector, as measured from the XY plane of an object’s body axes, is also available for each object involved in the access.

Time components

Calculating access provides several time components to AWB, including the input times over which STK computes an access (ConsideredIntervals), the computed times when access is available (AccessIntervals), and the satisfaction intervals for each constraint (ConstraintIntervals).

Calculation components

Access calculations provide parameter sets describing the relative position vector between the objects, in several different representations (Cartesian, Spherical, Cylindrical). In addition, an access between a transmitter and a receiver provides a CommLinkInformation parameter set from which you can obtain many communications metrics at a given point in the access interval.