Currently, the world’s population is estimated at 6.5 billion. Within the next 4 decades, projections indicate that the global population will increase by 50% to over 9 billion individuals. Given these numbers, the analysis of demographic data is essential to access vital information on the world’s population for a variety of purposes.
GPS Satellites and Data Collection
At any given time, there are usually a minimum of 24 active GPS satellites orbiting the Earth. Currently, there are over 30 active satellites, which includes several back-ups. These satellites travel at 7,000 miles per hour at 12,5000 miles above the earth’s surface. It takes each satellite 12 hours to circle the planet in its entirety.
It’s interesting to note that a GPS receiver is able to determine what