  Hitomi (ASTRO-H) carries two Hard X-ray Telescopes (HXTs) that can focus
X-rays up to 80 keV. Combined with the Hard X-ray Imagers (HXIs) that detect
the focused X-rays, imaging spectroscopy in the high-energy band from 5 keV to
80 keV is made possible. We studied characteristics of HXTs after the launch
such as the encircled energy function (EEF) and the effective area using the
data of a Crab observation. The half power diameters (HPDs) in the 5--80 keV
band evaluated from the EEFs are 1.59 arcmin for HXT-1 and 1.65 arcmin for
HXT-2. Those are consistent with the HPDs measured with ground experiments when
uncertainties are taken into account. We can conclude that there is no
significant change in the characteristics of the HXTs before and after the
launch. The off-axis angle of the aim point from the optical axis is evaluated
to be less than 0.5 arcmin for both HXT-1 and HXT-2. The best-fit parameters
for the Crab spectrum obtained with the HXT-HXI system are consistent with the
canonical values.
