Mi Zhang, Xing Gao (Xingming Observatory), report the possible optical counterpart of GRB 211024B ( 18.14 r ). The transient was discovered on several 40-s survey images ( limiting mag about 19.0 ) taken by Xing Gao at Xingming Observatory #3 ( N88 ) around Oct. 24.93302, 2021 UT using a unfiltered CCD ( + 0.6-m f/8 Ritchey-Chretien telescope ). Images can be found at: http://xjltp.china-vo.org/xm59mz.html
NET UCAC-4
XM59MZ C2021 10 24.93302 10 18 51.10 +24 34 05.2 18.14r N88
XM59MZ C2021 10 24.93376 10 18 51.09 +24 34 05.0 18.02r N88
XM59MZ C2021 10 24.93449 10 18 51.11 +24 34 05.2 17.24r N88
XM59MZ C2021 10 24.93535 10 18 51.10 +24 34 05.1 17.43r N88
XM59MZ C2021 10 24.93631 10 18 51.10 +24 34 05.2 17.45r N88
XM59MZ C2021 10 24.93727 10 18 51.11 +24 34 05.2 17.51r N88
XM59MZ C2021 10 24.93823 10 18 51.11 +24 34 05.2 17.72r N88
XM59MZ C2021 10 24.93938 10 18 51.10 +24 34 05.2 17.86r N88
XM59MZ C2021 10 24.94069 10 18 51.09 +24 34 05.0 17.93r N88
XM59MZ C2021 10 24.94200 10 18 51.10 +24 34 05.2 17.99r N88
XM59MZ C2021 10 24.94331 10 18 51.10 +24 34 05.1 18.25r N88
XM59MZ C2021 10 24.94463 10 18 51.10 +24 34 05.2 18.26r N88
XM59MZ C2021 10 24.94595 10 18 51.10 +24 34 05.1 18.48r N88
XM59MZ C2021 10 24.94726 10 18 51.09 +24 34 05.3 18.51r N88
XM59MZ C2021 10 24.94859 10 18 51.10 +24 34 05.1 18.62r N88
XM59MZ C2021 10 24.94991 10 18 51.10 +24 34 04.9 18.81r N88
XM59MZ C2021 10 24.95123 10 18 51.12 +24 34 05.0 18.52r N88
XM59MZ C2021 10 24.95256 10 18 51.10 +24 34 05.1 18.47r N88
XM59MZ C2021 10 24.95383 10 18 51.10 +24 34 05.1 18.96r N88
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| Discovery image taken around 2021 Oct. 24.93302 UT at N88 | PS Image |