Multiwavelength light curve of OP 313. The red vertical band indicates the period when LST-1 detected OP 313. a: Fermi-LAT light curve at E > 100 MeV. b: Swift-XRT X-ray light curve from 0.3 keV to 10 keV. c: Swift-UVOT light curve in the optical/UV bands. d: Optical light curve from several facilities and filters: CRTS V-filter (cV), KAIT R-filter (kR), Tuorla R-filter (tR), ATLAS o (Ao) and c-filters (Ac), and Palomar ZTF g, r, and i-filters (zG, zR, and zI). The label zGzR refers to ZTF observations using both g and r filters. e: Radio Single Dish FERMI-GST AGN Multi-frequency Monitoring Alliance (F-GAMMA) light curves above 15 GHz, Submillimeter Array (SMA) data at 225, 273 and 350 GHz, including SMAPOL data at 225 GHz light curves, Metsähovi at 37 GHz and VLBA-BU-BLAZAR at 43 GHz light curves. f: Radio Single Dish F-GAMMA light curves below 15 GHz and MOJAVE VLBA light curve.