OCI Main Optics Bench with Collimator Slit Assembly Installed

The Ocean Color Instrument (OCI) Main Optics Bench (MOB) is integrated with the Collimator Slit Assembly (CSA). The CSA is installed to measure the height, width, and depth of the hardware using a Coordinate Measurement Machine. OCI is a highly advanced optical spectrometer that will be used to measure properties of light over portions of the electromagnetic spectrum. It will enable continuous measurement of light at finer wavelength resolution than previous NASA satellite sensors, extending key system ocean color data records for climate studies. OCI is PACE's (Plankton, Aerosol, Cloud, ocean Ecosystem) primary sensor built at Goddard Space Flight Center in Greenbelt, MD.