Space Tracking and Surveillance System (STSS) is a network of satellites, ground-based radars, and other sensors that work together to track and monitor objects in space. It is designed to provide early warning of potential collisions, debris threats, and other potential hazards in orbit.
The STSS network consists of two types of satellites: the STSS Demo satellite and the STSS-ATRR satellite. The STSS Demo satellite is a technology demonstrator that was launched in 2009 to test the capabilities of the system. The STSS-ATRR satellite is a more advanced version that was launched in 2011 and is designed to provide continuous monitoring of objects in space.
The STSS network also includes ground-based radars, such as the Space Fence radar, which is a high-frequency radar system that can detect small objects in low Earth orbit. These radars work in conjunction with the satellites to provide a more comprehensive view of the space environment.
In addition to tracking and monitoring objects in space, the STSS network is also used to detect and track missile launches, including those that may be a threat to the United States. The system is operated by the U.S. Air Force Space Command and is a key component of the U.S. missile defense system.
The STSS network is an important tool for ensuring the safety and security of space-based assets and activities. It helps to prevent collisions and reduce the risk of debris in orbit, which can damage satellites and other spacecraft. It also helps to protect against potential threats to national security, such as missile launches.
Overall, the Space Tracking and Surveillance System is a critical component of space situational awareness and plays a vital role in ensuring the safety and security of space-based assets and activities.