Tracking a Starship launch using two intensity probes

On November 19, 2024, Space-X launched the sixth test flight of their Starship rocket. Measurements were made at 21 different locations around the launch pad, including two 3-m radius intensity probes located roughly 2 km north and 2 km south of the pad. There was also an array of measurement stations near the coast ranging from 3 km south of the pad to 27 km north. Using a broadband time-correlation technique, the direction of the sound source can be determined. Having two intensity probes allows themeasurement of the trajectory of the rocket as it lifts off. It also allows the determination of the position of the sound source relative to the rocket, assuming the trajectory is already known. Methods of correcting and compensating for the fact that the intensity probes were on uneven ground will be discussed. Because of a communication problem with the tower, the super-heavy booster did not return to the launch site but was instead diverted to the Gulf of Mexico. There were two transient events that occurred after the launch which were associated with the booster return. The characterization and localization of those events using the intensity probes and other measurement sites will also be discussed.