  WINERED is a newly built high-efficiency (throughput$ > 25-30\%$) and
high-resolution spectrograph customized for short NIR bands at 0.9-1.35 ${\rm
\mu}$m. WINERED is equipped with ambient temperature optics and a cryogenic
camera using a 1.7 ${\rm \mu}$m cut-off HgCdTe HAWAII-2RG array detector.
WINERED has two grating modes: one with a conventional reflective echelle
grating (R$\sim$28,300), which covers 0.9-1.35 $\mu$m simultaneously, the other
with ZnSe or ZnS immersion grating (R$\sim$100,000). We have completed the
development of WINERED except for the immersion grating, and started
engineering and science observations at the Nasmyth platform of the 1.3 m Araki
Telescope at Koyama Astronomical Observatory of Kyoto-Sangyo University in
Japan. We confirmed that the spectral resolution ($R\sim$ 28,300) and the
throughput ($>$ 40\% w/o telescope/atmosphere/array QE) meet our
specifications. We measured ambient thermal backgrounds (e.g., 0.06 ${\rm
[e^{-}/sec/pixel]}$ at 287 K), which are roughly consistent with that we
expected. WINERED is a portable instrument that can be installed at any
telescope with Nasmyth focus as a PI-type instrument. If WINERED is installed
on a 10 meter telescope, the limiting magnitude is expected to be J=18-19,
which can provide high-resolution spectra with high quality even for faint
distant objects.
