The use of GPS has also become prevalent in support of satellite operations, enabling improvements in operational efficiencies for orbital maneuvers, rendezvous and docking and station-keeping. However, there is little information on the presence or effect of GPS interference on space operations. Many GPS interference sources are unintentionally created from high power transmitters that leak interference into the GPS band. Even unintentional interference could have significant effect on space operations. For example, L2 is particularly susceptible to interference, but is critical for precision relative navigation operations, for example for wide-lane carrier cycle ambiguity resolution. For low earth orbiting platforms, high powered emissions from the ground could affect their GPS operations. It is also possible that space-based interference sources could exist that cannot be easily detected by current monitoring systems but could affect GPS based space operations.