"The Asgard have developed a system of disruptor satellites that can deploy the beam in space."
Samantha Carter[src]

A disruptor satellite is a planet-defending version of the smaller Replicator disruptor, designed to disintegrate Replicator vessels on a planetary scale. The disruptor itself was based on Ancient technology, although the Asgard were able to adapt it for their own uses. The satellite was compatible with human computers and could be remodulated to target Replicator ships who had made themselves immune to previous attacks by the technology. This remodulation could occur while the satellite was in orbit.

According to Thor, the most effective deployment would be geosynchronous orbit above the protected location with zero degrees inclination.

A satellite was used to protect the Alpha Site from Fifth, and was fired by Replicator Carter destroying him and his ship. (SG1: "Gemini")

A disruptor satellite arrives at the Alpha Site