Science Payload
"Science instruments and experiments make up the payload, the number and type of which depends upon the objectives of the mission and the size of the individual payload components." (ESA, 2013)
Sources
"Anatomy of a spacecraft". Space Science, ESA. Last modified June 12, 2013.
https://www.esa.int/Our_Activities/Space_Science/Anatomy_of_a_spacecraft.
Accessed February 1, 2019.