Averaged SED of 1ES 1011+496 compiled from simultaneous 2011 and 2012 MWL observations marked in red. We combine deabsorbed (Domínguez et al. 2011) VHE γ-ray observations (circles) by MAGIC and HE γ-ray data (triangles) from Fermi-LAT; Swift data from 2012 March 27 (filled squares) and 31 (open squares) in X-rays and UVOT bands (squares), the latter corrected for Galactic extinction (Fitzpatrick 1999); optical data in the R-band (star) from KVA (corrected for host galaxy contribution; Nilsson et al. 2007) and radio data at 15 GHz (diamond) and 37 GHz (cross) provided by the OVRO and Metsähovi telescopes. The solid (dashed) line represents the fit with a one-zone SSC model considering the X-ray spectrum from March 27 (March 31). The parameters are listed in Table 4. Previous MAGIC observations carried out in 2007 (black diamonds; Albert et al. 2007a) and 2008 (gray circles; Ahnen et al. 2015) are corrected for EBL absorption according to the model by Domínguez et al. (2011). The inset is a zoom into the HE to VHE γ-ray band. Archival data (gray squares) are taken from the ASDC²⁰.