Monitor's satellite

The Monitor's Satellite is a spherical orbital station used by the cosmic entity known as the Monitor. Along with his assistant, Harbinger, he was able to monitor events taking place on Earth of alternate realities. The Monitor also used the station to coordinate the sale of advanced weaponry to various criminal enterprises. The motivations behind this have never been fully revealed. During the Crisis on Infinite Earths, the Monitor used the station to coordinate the efforts of many of Earth's heroes in a campaign to save the Multiverse from being destroyed by the Anti-Monitor. The Anti-Monitor took control of Harbinger and used her to assassinate the Monitor inside of his private chamber aboard the satellite.

In recent times, a collective race of Monitors have taken to using a similar station as a de facto police station, wherein they analyze discrepancies taking place on the fifty-two replicated realities created in the wake of the Infinite Crisis event.

Residents

 * The Monitor
 * Harbinger, Lyla Michaels