The first satellite for the University of Georgia, the Spectral Ocean Color Satellite (SPOC) will study coastal ecosystems and their health as climate change has a larger impact. Using a multispectral payload, SPOC will take in multiple bands of light and gather data for the Center for Geospatial Research at UGA. SPOC is funded by the Undergraduate Student Instrument Project by NASA.
Mission Concept of Operations
SPOC will operate in a pushbroom fashion to gather data over Georgia's Sapelo Island. Final ConOps will be available post-CDR.
The SPOC payload (SPOCEye) is a hyperspectral sensor which is being developed by the Small Satellite Research Laboratory and Cloudland Instruments. The payload will study eight different bands, which are of importance to the study of Georgia's Sapelo Island. These bands will be binned spectrally to increase the Signal-to-Noise Ratio (SNR). Spatial binning will occur to further increase the SNR if necessary. These binning schemes are currently in progress.
As discussed above, SPOCEye is a hyperspectral instrument. Rather than using bandpass filters, our design allows for full spectrum analysis, and band picking can occur at processing or at later times. By gathering the full spectrum, we allow ourselves to be able to use the same data in the future if other bands are needed for a certain target. The payload works by focusing light through a single slit, a collimating lens, blazed diffraction grating, and onto a CMOS sensor. Current specs show a spatial resolution of 120 m. This can be improved with a better sensor, with none to minor changes to the optical system.
The core of SPOC is a bus from Clyde Space. Additional details about the components will be available post-CDR.