Y.-D. Hu, X.-Y.Li, E. Fernandez-Garcia, A. Ayala, A. J. Castro-Tirado
(IAA-CSIC), C. Perez del Pulgar, A. Castellon, I. Carrasco (Univ. de
Malaga),�� S. Guziy (Univ. of Nikolaev) and D. Xiong, Y. Fan, X. Zhao, J.
Bai, C. Wang, Y. Xin (Yunnan Nacional Astronomical Observatory) on
behalf of a larger collaboration, report:
"Following the detection of GRB 190220B by INTEGRAL (Gotz et al. GCNC
23915), the 0.6m BOOTES-4/MET robotic telescope at Lijiang Astronomical
Observatory (China) responded to the the burst gathering images starting
at 20:17:12 UT (89 s after trigger, 84 s after notice). No optical
afterglow candidate is found down to 18 mag (g'-band) in the co-added
(5x10s) image within the reported INTEGRAL 2 arcmin radius error box.
Observations are ongoing."