While maintaining lock on the uplink beacon using a closed loop control system and a two-axis gimbal, the OPALS flight system will downlink a modulated laser beam with a formatted video. As the ISS travels across the sky, a laser beacon will be transmitted from the ground telescope to OPALS and be tracked. The objective is to demonstrate optical communication by transferring a video from the OPALS payload on the ISS to a ground receiver at JPL's OCTL (Optical Communications Telescope Laboratory) in Wrightwood, California. OPALS is a NASA/JPL optical technology instrument to be flown to the ISS (International Space Station) in the spring of 2014. Overview Launch Mission Status OPALS HDEV References ISS Utilization: OPALS (Optical PAyload for Lasercomm Science) and HDEV (High Definition Earth Viewing)
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