  Understanding telescope pointing (i.e., line of sight) is important for
observing the cosmic microwave background (CMB) and astronomical objects. The
Moon is a candidate astronomical source for pointing calibration. Although the
visible size of the Moon ($\ang{;30}$) is larger than that of the planets, we
can frequently observe the Moon once a month with a high signal-to-noise ratio.
We developed a method for performing pointing calibration using observational
data from the Moon. We considered the tilts of the telescope axes as well as
the encoder and collimation offsets for pointing calibration. In addition, we
evaluated the effects of the nonuniformity of the brightness temperature of the
Moon, which is a dominant systematic error. As a result, we successfully
achieved a pointing accuracy of $\ang{;3.3}$. This is one order of magnitude
smaller than an angular resolution of $\ang{;36}$. This level of accuracy
competes with past achievements in other ground-based CMB experiments using
observational data from the planets.
