A GPS tracker is disposed on launch hardware that separates from a spacecraft launch vehicle during ascent to orbit with the launch hardware having a suborbital trajectory from launch to impact while being tracked so as to track the launch hardware during suborbital flight, such as for tracking separated fuel stages, external tanks, external boosters, and payload fairings that return to earth. Various components are provided to a Module designer for selection, and the designer defines the interface APIs specifying the component functionalities. Each of the pictures comprises macroblocks that can be further divided into smaller blocks. A reverse cone-shaped disc is formed at an inner end of the stem.