What factor determines the distance spectators can stand during a launch?

The distance that spectators can stand during a rocket launch is primarily determined by guidelines set by the Safety Monitor. This is because the Safety Monitor is responsible for assessing the unique aspects of each launch, including the potential hazards and risks associated with the specific rocket being launched.

These guidelines take into account various factors including the power of the rocket, the type of motor used, and inherent safety concerns that could arise during the launch. The Safety Monitor applies industry standards and regulations, ensuring that the area designated for spectators is safe, thus minimizing risk to participants and onlookers.

While the type of rocket, weather conditions, and altitude may influence planning and safety considerations, it is the Safety Monitor who ultimately establishes the safest distance for observers based on a comprehensive understanding of all these variables.