  We conducted optical polarimetry and near-infrared spectroscopy of JAXA's
Hayabusa2# mission target, (98943) 2001 CC21, in early 2023. Our new
observations indicated that this asteroid has a polarimetric inversion angle of
~21 deg, absorption bands around 0.9 and 1.9 um, and a geometric albedo of
0.285 +- 0.083. All these features are consistent with those of S-type but
inconsistent with L-type. Based on this evidence, we conclude that JAXA's
Hayabusa2# spacecraft will explore an S-type asteroid with albedo and size
(0.42-0.56 km when we assume the absolute magnitude of 18.6) similar to (25143)
Itokawa.
