This panel discussion looks at the implications of new space-based capabilities to collect, store and process information on the maritime environment, from the user perspective. Major technologies, including space-based automatic identification systems (AIS) and synthetic aperture radar (SAR), are covered, with a detailed focus on the key challenges like payload design challenges and interference mitigation. Data collection and fusion capabilities are of critical importance in the maritime surveillance environment, so this discussion also looks at the integration of different satellite data streams with conventional ship reporting systems.