Image Details
Caption: Figure 16.
Left panel: the differences in gain between beam 1 and beam 14 of FAST on 2024 November 15. Right panel: the differences in gain between beam 1, beam 12, and beam 14 of FAST on 2025 July 7 (nearest date to 2025 July 9).
© 2026. The Author(s). Published by the American Astronomical Society.