US Missile Defense Agency jet tracked over South Dakota

A US Missile Defense Agency (MDA) Gulfstream V aircraft, with the callsign HALO51 and registration N551HA, was tracked operating over the central United States. The jet, which is associated with missile defense testing and sensor calibration missions, was observed flying northwest over eastern South Dakota after departing from Tulsa, Oklahoma. This type of aircraft is often used for high-altitude observation and data collection in support of ballistic missile defense programs. The flight pattern is consistent with routine testing or training operations conducted by the agency.