Triumvirate to Venus: the three VenSpec Spectrometers aboard the EnVision Mission

The VenSpec spectrometer suite aboard the EnVision mission to Venus is composed out of three spectrometers that will gather data on various coupled phenomena on our sister planet from the surface to the upper atmosphere. The combined technical system will be able to observe Venus at a variety of wavelengths from UV to IR and will map surface composition and variations in various mesospheric and tropospheric gasses that will enable the common science team to study the coupling between the Venusian surface and atmosphere and enable a comprehensive search for volcanic activity. This paper presents an overview and top-level comparison of the instruments including their common Central Control Unit that provides the electrical interface to the spacecraft. A technical budget overview and key parameters of each unit will be shown. The different design drivers for the different units will be explained, and the particularities of the EnVision mission and their impact on the project delineated.