What is the first radio telescope primarily dedicated to SETI research that can also track satellites?

• A. Allen Telescope Array
• B. Arecibo Observatory
• C. Very Large Array
• D. Parkes Observatory

Answer: (A)

The main idea is a radio telescope built specifically for searching for extraterrestrial intelligence. The Allen Telescope Array was created by the SETI Institute to focus on SETI research, while also functioning as a versatile radio telescope for general astronomy. Its design uses multiple steerable dishes that can quickly reorient and observe large portions of the sky, which means it can both survey for potential ET signals and track moving objects like satellites. This combination of dedicated SETI focus with agile tracking sets it apart from other facilities that were built primarily for traditional radio astronomy rather than for SETI. The other observatories listed are major general-purpose radio telescopes and have not been designed as the first facility dedicated to SETI research.