{
  "bibcode": "2014GCN.17093....1M",
  "body": "E. Mazaeva (IKI), E. Klunko (ISTP), A. Volnova (IKI), M. Eselevich \n(ISTP), I. Korobtsev (ISTP), A. Pozanenko (IKI) report on behalf of \nlarger GRB follow-up collaboration:\n\nWe observed the field of GRB 141121A (Lien et al., GCN 17075) with \nAZT-33IK telescope of Sayan observatory (Mondy) on Nov., 23  starting on \n(UT) 20:57:39.  We obtained several  images in R-filter. In a combined \nimage we clearly  detect optical  afterglow (Tanga et al., GCN 17078; \nPerley et al., GCN 17081).\n\nA preliminary photometry is based on nearby SDSS  stars:\n\ndate       UT start   t-T0     Filter   Exp.    OT    OT_err\n                               (mid, days)       (s)\n\n2014-11-23 20:57:39   2.74025  R        39*120  20.53 0.04\n\nWe confirm re-brightening of the afterglow reported early (Watson et al. \nGCN 17090; Kuroda et al. GCN  17091; Dichiara  et al. GCN 17092).",
  "circularId": 17093,
  "createdOn": 1416848188000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 141121A: Mondy optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 141121A"
}