The majority of the commercial space industries have concentrated on placing small satellites in the LEO (Low Earth Orbit), a step that the U.S. military needs to follow.
Most of the companies are manufacturing small satellites a move from the traditional large satellites. The number of CubeSat’s in Leo has increased since the 1990s. Optical imaging or observation by radar using smaller satellites is easy to attain in the current days because of the advancement in the technology used in camera and computer miniaturization. In recent days, some companies such as SpaceX and OneWeb, including the planet, have deployed from space large size satellites. The large satellites could create space for many space satellites that will have different types of communications as they observe the Earth.
Satellites on Leo have different types of advantages. The placement of the satellites in the low orbit is effective due to the size smaller of the sensor. The sensor resolution of the sensor is best in the lower orbit and detection of a shorter transmission, which delays between the space and the Earth. The satellite needs less power to transmit signals, unlike when the orbit. Fleets of small satellites are easier and in-expensive to launch compared to large satellites when sent to the higher orbit. Also, to refill and update technology changes in constellation satellites.
For surveillance, the lower Earth’s orbit allows the satellites to move orbit on the world, unlike being at a permanent place. The surveillance might fit naturally on the military of the U.S., especially on the Northern Sky Research analyst, this, according to Brad Grady, who was speaking to space. Com.
The military of the United States is keen on the defense department of space development Agency (SDA), and the military is considering the use of LEO satellite constellations for some of the applications, which include communication, an alternative navigation system, or the advanced missile defense to GPS. The information above came from George Nacouzi, who is RAND Corporation Senior engineer, when communication to space.com in a mail. DARPA (Defense Advanced Research Project Agency) started this project in 2018 through the tactical technology office that wants to investigate how LEO constellation is essential and will help the military.
Nacouzi said that if LEO satellite handling is proper, its amount of security risk is minimal. The satellite will increase the adaptation of the system. He added the satellites are hard to handle because of their vulnerability, especially on an individual basis.