Q. Which astronomical observatory has been identified as the optimal site for satellite-based quantum communications?
Answer: Indian Astronomical Observatory (IAO), Ladakh
Notes: The Indian Astronomical Observatory (IAO) in Hanle, Ladakh, has been identified as the optimal site for satellite-based quantum communications due to its unique geographical features, such as low atmospheric water vapor levels and extreme cold temperatures. This research by the Raman Research Institute aims to enhance global quantum communication capabilities. The study also highlights the importance of atmospheric conditions in determining suitable locations for quantum key distribution and uplink transmission through the atmosphere.

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