In recent years small satellites have proven great potential in scientific, communication and military applications. “Opportunities space” is the word for small satellite systems. Small satellite systems strive to indentify future technological advancement to make successful programs. The Indian space Research organization which has launched more than 40 satellites to orbit encourages the small satellite systems, designed and developed, by universities. SRMSAT is one such university satellite designed and developed by the undergraduate students of SRM University. SRMSAT is a Nano-satellite of less than 10 kg designed to monitor green house gases, namely CO2 and H2O. The satellite will be launched by PSLV as a piggy back to the main satellite and will take up the orbit of the main satellite such that the orbit will be a LEO between 600-800 km altitudes.