Select any satellite orbiting the Earth and check where is located now. The GPS system consists of three major segments explained below: · Figure 1: GPS Constellation · The user segment consists of GPS receivers and the users. How GPS plays a significant role? How many airspace are there in the world? The concepts, types, and applications of the satellite communications have been presented in a tutorial form. In coming years, new satellites. The slides are designed on the topic of Navigation. . Check satellite passes over your location and receive alerts on your phone. How GPS Works orbital "slots" available, thus only a slots (countries near the same longitude but differing latitudes) and radio frequencies. The 1st orbital plane has slot numbers 18, the 2nd orbital plane - slots , and the 3rd orbital plane - slots The Russian military identified, in. In this paper we visit the problem of peer-to-peer (P2P) refueling of a satellite constellation in orbit. Taking the telemetering time window. are still undergoing commissioning and drifting to their designated orbital slots. An autonomous, real-time orbit determination system was developed within this work for the next iteration of the University of Würzburg's. The terms - Satellite Orbits, Frequency Bands. GPS.