Space domain awareness

Space domain awareness is the study and monitoring of satellites orbiting the Earth. It involves the detection, tracking, cataloging and identification of artificial objects, i.e. active/inactive satellites, spent rocket bodies, or fragmentation debris.

Aims

Space domain awareness accomplishes the following:

Predicting when and where a decaying space object will re-enter the Earth's atmosphere;

Preventing a returning space object, which to radar looks like a missile, from triggering a false alarm in missile-attack warning sensors;

Charting the present position of space objects and plot their anticipated orbital paths;

Detecting new human-made objects in space;

Producing a running catalogue of human-made space objects;

Determining which country owns a re-entering space object;

Informing countries whether or not objects may interfere with satellites and International Space Station orbits;

Providing data for future anti-satellite weapons systems.

Systems

Systems include:

The DEEP-Sight prototype, designed by Deepinder Uppal on behalf of the Defense Innovation Unit, this system is designed to provide space domain awareness across a broad-spectrum of SDA use cases to Space Force, the United States Navy and PSRA (Public Satellite Research and Analysis) teams.

The United States Space Surveillance Network which has detectors such as the Space Fence (replacing the now defunct Air Force Space Surveillance System) and Space Surveillance Telescope

The Russian Centre for Outer Space Monitoring with facilities such as Okno and Krona and Sazhen-S, used to analyse the orbital parameters of space craft.