 Each footprint is separated by 60 m along track, with an across-track distance of about 600 m between each of the eight tracks.GEDI is expected to produce about 10 billion cloud-free observations during its nominal 24-month mission length.Using a 0.8mm Telescope attached to the bottom of the instrument, GEDI will be able to receive the pulses of light that bounce back from the Earth' surface and collect information on the 3D structure of the area in question.