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Earth’s Circumference = 40,000,000 m Satellite Orbit time = 98.9 minutes for L8 <br />Effective Number of Detectors <br />(no. pixels) = ~5,700 for L8 Pixel size = 10 m <br />= 48 days for 1 sat. <br /> or 48 satellites for daily <br />A formula for calculating revisit time for a satellite <br /> (and the number of satellites needed for a daily “Selfie”) <br />constrained by telescope <br />size and signal to noise <br />ratio req. <br />x <br />x <br />Swath Width of Satellite