Multi-wavelength light curves of SDSS J164100.10+345452.7. The optical, UV, and X-ray light curves were collected by Swift from 2019-12-09 to 2020-08-17 (first year campaign), from 2021-01-31 to 2021-07-28 (second year), which are shown with 1σ errorbars. The data at 37 GHz were collected at Metsähovi (< 4σ non-detections represented by crosses). Grey bands mark the Metsähovi detections. Top axis reports representative dates during the campaigns.