Gaia G-band light curve scaled by 6 magnitudes is in black. Highlighted in orange and red are the 2017 and 2023 outbursts, respectively. The dashed black lines are the data of the X-Shooter spectroscopic observations on 19 April 2023 and 25 July 2024. The mean quiescent magnitude is measured as 18.66 ± 0.12. WISE light curves in the W1 (3.35 μm) and W2 (4.6 μm), shown in blue and red respectively. For each date of WISE observations, multiple images are taken, and the photometry of each image is averaged to provide the final values.