The USS Saratoga (NCC-1887) was a 23rd century Federation Miranda-class starship operated by Starfleet. In 2286, while patrolling Sector 5, Neutral Zone, the Saratoga encountered a probe of unknown origin on a direct course to Earth. As the crew attempted to make contact, however, the ship was neutralized by the probe, the transmissions of which were being carried on an amplification wave of enormous power, impacting on all ship's systems. (Star Trek IV: The Voyage Home)