TITLE: GCN CIRCULAR NUMBER: 35620 SUBJECT: GRB 240123A: Mondy continued optical observations and the PL decay index DATE: 24/01/24 15:44:05 GMT FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru> N. Pankov (HSE, IKI), A. Pozanenko (IKI), E. Klunko (ISTP), S. Belkin (IKI) report on behalf of GRB IKI FuN: We continued to observe the afterglow of GRB 240123A (D'Ai et al., GCN 35602; Pankov et al., GCN 35605, GCN 35609; Sasada et al., GCN 35618; Moskvitin at al., GCN 35619) with AZT-33IK telescope of Mondy observatory in R-filter. Using previously reported photometry (Pankov et al., GCN 35605, GCN 35609; Moskvitin at al., GCN 35619) and photometry obtained on t-T0 0.400722 we approximate the light curve with a PL model with the index of PL alpha = -1.1, see Figure at http://grb.rssi.ru/GRB240123A/GRB240123A_LC_approximation.jpg View this GCN Circular online at https://gcn.nasa.gov/circulars/35620. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...