TITLE: GCN CIRCULAR NUMBER: 7037 SUBJECT: GRB071101: Optical and NIR upper limits by KANATA DATE: 07/11/02 13:46:56 GMT FROM: Makoto Uemura at Hiroshima U M. Uemura, A. Arai, and T. Uehara (Hiroshima Univ.), report on behalf of the KANATA GRB team: We performed optical-NIR observations of the field of GRB 071101 (GCN Circ. 7030) with TRISPEC attached to the "KANATA" 1.5-m telescope. Our images cover about 70% of the south region of the BAT errorbox, in which the nearby galaxy reported in GCN Circ. 7031 is not included and the region of the XRT error circle (GCN Circ. 7034) is included. No fading source or afterglow candidate can significantly be detected in the XRT error circle. Upper limits of magnitude were estimated from neighbor USNO B1.0 stars and 2MASS sources, shown below: time(UT) time after the burst lim. mag. exposure_time 1 Nov. 2007 (sec) (sec) 17:57:36 229 19.7(V) 30 17:57:33 226 17.0(J) 24 17:57:27 220 14.8(Ks) 12 18:16:25 1358 20.8(V) 123 18:16:24 1357 18.0(J) 120 18:16:16 1349 15.5(Ks) 108