Water-production rate of comet 46P as a function of time from perihelion during the 2018 apparition. Our measurements and those from Knight et al. (2021) were derived from the OH production rates. Combi et al. (2020) measurements were derived from H Lyman-α spectra using the SWAN instrument on SOHO. iSHELL/IRTF and McKay et al. (2021) data were derived from NIR spectra. Lis et al. (2019) data were derived from far-infrared spectra using the GREAT spectrometer aboard the Stratospheric Observatory for Infrared Astronomy (SOFIA).