This book provides an overview of Space Domain Awareness. We define Space Domain Awareness (SDA) as the actionable knowledge required to predict, avoid, deter, operate through, recover from, and attribute cause to losing or degrading space capabilities and services.
The primary purpose for SDA is to provide decision makers with a quantifiable and timely body of evidence of behaviors attributable to specific space threats and hazards. SDA encompasses all activities of information tasking—collecting, fusing, exploiting, quantifying and extracting—that end in identifying and predicting credible threats and hazards.