TITLE: GCN CIRCULAR NUMBER: 31395 SUBJECT: GRB 220101A: further TNG NIR observations DATE: 22/01/06 12:52:54 GMT FROM: Paolo D'Avanzo at INAF-OAB P. D'Avanzo (INAF-OAB), A. Melandri (INAF-OAB), D. Fugazza (INAF-OAB), S. Campana (INAF-OAB), D. B. Malesani (Radboud Univ. and DAWN/NBI), V. D'Elia (ASI-SSDC), M. De Pasquale (Univ. Messina), E. Palazzi (INAF-OAS), S. Piranomonte (INAF-OAR), A. Rossi (INAF-OAS), G. Tagliaferri (INAF-OAB); V. Lorenzi, D. Carosati (INAF-TNG), Paolo Giacobbe (INAF-OATO) on behalf of the CIBO collaboration report: We observed the field of GRB 220101A (Tohuvavohu et al., GCN Circ. 31347; Arimoto et al., GCN Circ. 31350; Ursi et al., GCN Circ. 31354; Lesage & Meegan, GCN Circ. 31360) with the Italian 3.6m TNG telescope equipped with the near-infrared camera NICS. A series of images were obtained with the J and K filters on 2022-01-05 from 19:31:36 UT to 20:55:35 UT (i.e. at a mid time of about 4.63 days after the burst). The NIR afterglow (D’Avanzo et al., GCN Circ. 31373) is clearly detected in all bands. From preliminary photometry we derive the following magnitude: J = 19.71 +/- 0.10 (Vega; calibrated against the 2MASS catalogue).