TITLE: GCN CIRCULAR NUMBER: 30882 SUBJECT: IceCube-210922A: JCMT/SCUBA2 observations DATE: 21/09/26 12:09:36 GMT FROM: Kuiyun Huang at IANCU/NTNU <kuiyun@gmail.com> Y. Urata and K. Huang on behalf of a larger collaboration We observed the field of IceCube-210922A (GCN Circ. 30862) using Scuba-2 attached to JCMT. The observation was started at 2021/09/24 13:15 UTC and SCUBA-2 imaged the field centered at RA 04:02:55.200, Dec -04:10:48.00 with 50 arcmin diameter. There is one bright submm source with ~70 mJy/beam at 850um not listed in the Planck catalog of compact sources. The position is RA 04:02:05.362 Dec -04:24:28.80 Within the JCMT beam (14 arcsec), there are two catalog sources, WISEA J040205.29-042428.5 and NVSS J040205-042434. Based on the Pan-STARRS1 images, there are no optical sources. Additional monitoring observation with Scuba-2 is scheduled. Further detailed multi-wavelength investigation of the source is encouraged. We would like to thank Harriet Parsons and JCMT staff.