TITLE: GCN CIRCULAR NUMBER: 30891 SUBJECT: IceCube-210922A: SMA observation for the JCMT candidate DATE: 21/09/28 07:10:02 GMT FROM: Kuiyun Huang at CYCU <kuiyun@gmail.com> Y. Urata, G. Petitpas on behalf of a larger collaboration We observed the JCMT source (GCN 30882) using SMA. The SMA 230GHz observation was started at 2021 Sep 27, 15:21 (UT). The JCMT source was clearly identified at 04h02m05.304s -04d24m28.14s (0.5”) with ~17 mJy/beam. The position is consistent with the cataloged IR source (WISEA J040205.29-042428.5). The radio source, NVSS J040205-042434 is also counterpart when we consider the margin of position error. Further detailed multi-wavelength investigations are encouraged. We would like to thank SMA staff.