{
  "bibcode": "2014GCN.16281....1V",
  "body": "A. Volnova (IKI), E. Klunko (ISTP), M. Eselevich (ISTP), I. Korobtsev\n(ISTP), A. Pozanenko (IKI) report on behalf of larger GRB follow-up \ncollaboration:\n\nWe continued observation of the Swift GRB 140419A (Marshall et al., GCN \n16118) with AZT-33IK telescope of Sayan observatory (Mondy) on Apr.\n25-26. We took several images in R-filter with the exposure of 60 \nseconds. On a stacked image from Apr. 25 we detect the optical afterglow\n(Zheng et al., GCN 16119; Guver et al., GCN 16120; Butler et al., GCN \n16121; Kuin et al., GCN 16123; Hentunen et al., GCN 16126). On the \nstacked frame from Apr. 26 in the Swift/XRT error circle (Osborne et \nal., GCN 16124) we do not detect any source.\n\nDetails of a photometry are the following:\n\ndate         UT start   t-T0      Filter   Exp.     OT\n                         (mid, days)        (s)\n2014-04-25   14:48:25   6.47713   R        90*60    22.81+/-0.17\n2014-04-26   14:21:55   7.45841   R        90*60   >21.7 (3 sigma)\n\nThe photometry is based on nearby SDSS star, R (gri -> R transformations \nby Lupton 2005):\n\nSDSS id               R\nJ082752.69+461357.4   17.381+/-0.018",
  "circularId": 16281,
  "createdOn": 1400255352000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 140419A: Continued Mondy optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 140419A"
}