Which of the following is NOT part of the pre-launch safety assessment?

The pre-launch safety assessment is critical for ensuring that all elements of a rocket launch meet safety standards before lifting off. Options that are part of this assessment include checks and balances that verify that the rocket is in the proper condition to be launched safely.

Post-flight data analysis, however, involves reviewing and assessing data after the rocket has already been launched. This assessment includes looking at the rocket's performance, its trajectory, and any anomalies that occurred during the flight. This process is crucial for improving future missions and understanding the performance of the rocket and its systems, but it occurs after the launch, making it external to the pre-launch safety assessment.

In contrast, fueling checks, weighing the rocket, and verifying the operational readiness of safety equipment are all essential aspects that must be completed before launch, ensuring that everything is set for a safe mission. Therefore, post-flight data analysis does not fall within the scope of pre-launch activities.