Notes. The full table is available at the CDS. All data are in AB magnitudes and not corrected for Galactic foreground extinction. X-Shooter, UVOT-ubv and white filters, and GROND data result from subtracting the constant emission from the host and the nearby star, while the remaining UVOT bands, REM and MASTER data are not affected noticeably by additional components. Midtimes are derived with the geometric mean of start and stop times: $t=\sqrt{(t_1-t_0)\times (t_2-t_0)}$, hereby t_1.2 are the absolute start and stop times, and t₀ is the Swift trigger time.