{
  "bibcode": "2015GCN.17670....1M",
  "body": "E. Mazaeva (IKI), A. Volnova (IKI), E. Klunko (ISTP), I. Korobtsev (ISTP), \nM. Eselevich (ISTP), A. Pozanenko (IKI) report on behalf of larger GRB \nfollow-up collaboration:\n\nWe additionally observed the field of the GRB 150323C (Amaral-Rogers  et \nal., GCN 17621) with AZT-33IK telescope of Sayan observatory (Mondy) on \nMar., 27 and Mar. 30 under good weather conditions and mean FWHV of 1.8 \narcsec. We obtained several images in R-filter of 120 s  exposure. In both \nepochs we detect a source in coordinates (J2000) 12 50 27.90 +50 11 29.0 \n(+/- 0.45\" ) which is within afterglow coordinates (Xu et al., GCN 17625) \nand within the enhanced Swift-XRT position (Osborne et al., GCN 17633). Our \nobject is apparently the same object suggested as a possible host galaxy \n(Malesani et al., GCN 17655). Preliminary photometry of the source is \nfollowing\n\nDate       UT start           t-T0        Filter   Exp.       OT    Err.\n                                       (mid, days)       (s)\n\n2015-03-27 18:22:30   4.11333  R        85*120  22.7 0.25\n2015-03-30 14:09:29   7.02068  R      194*120  22.3 0.15\n\nPhotometry is based on SDSS DR9 stars:\n\nSDSS9_id            R(Lupton)\nJ125023.08+501048.2 16.84\nJ125032.04+501021.5 18.37\n\nAlso we note that our photometry reported early (Mazaeva et al., GCN 17639) \nmay by significantly  be significantly influenced by the possible  host \ngalaxy.",
  "circularId": 17670,
  "createdOn": 1428146189000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 150323C: additional  optical observations in Mondy",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 150323C"
}