The present invention discloses a technique for avoiding a signal collision in a wireless medium to improve communication throughput. In an embodiment, a set of parameters for a satellite includes a force parameter, initial condition parameters and time correction coefficients, which the receiver uses in a numerical integration to predict the position of the satellite. Once dimensions have been determined, overlay reports are generated including color-coded regions depicting relative levels of interaction. Further, each of the plurality of light sources may be located at a different spatial position in the MRI environment. The lower wafer may include landing pads for the contacts.