There has been a major upheaval in the space department of the US, with the Department of Defense taking in the reigns and getting more freedom in making decisions and having fewer regulations. Most of the satellites launched by the space agency against enemy missiles stayed in the geostationary satellite. However, Gen. John Hyten, the commander of the U.S strategic command is of the opinion that more satellites should be employed in the lower orbits for the more efficient functioning of the Department of Defense.
Hyten has also been nominated as the next vice chairman of Joint Chief of Staff and he will be entrusted with dealing with few of the most sensitive satellites under the jurisdiction of the military in order to track enemy missiles. Hyten believes that at present the constellations are too far from the orbit and insists that more satellites should be closer to the Earth which can warn against any attacks much before than what it is doing right now. The main architecture should be aimed at developing that.
Nowadays, hypersonic missiles have emerged as a major threat which is launched into space and then it glides into the atmosphere and does not have a fixed trajectory after that. The only way to track these satellites is through the low orbit ones which will enable you to have more global coverage. Thus, more steps should be taken to develop a constellation on the lower orbit. The Missile Defense Agency has been working on a project to develop a sensor which can be deployed in the proposed space and can track the hypersonic missiles.
However, the work seems to be a little directionless. The responsibility of development of the sensors will lie with the Space Development Agency which is under less bureaucratic hurdles which is instrumental for keeping up the innovations with the changing times. The upgraded appointment of Hyten will usher in the changes sooner.