{
  "bibcode": "2017GCN.20591....1S",
  "body": "E. Sonbas (Adiyaman Univ.), T. Guver, M. De Pasquale (Istanbul Univ.), E.\nGogus (Sabanci Univ.), O. Erece, M. Kocak, H. Kirbiyik, H. Esenoglu (TUG)\nreport on behalf of a larger collaboration\n\n\nWe observed the field of Swift GRB 170202A (Racusin et al., GCN#20575) with\nthe 1.0 meter T100 telescope (Bakirlitepe, TUBITAK National Observatory,\nTurkey), starting February, 2, 20:12:45.56 UT (~ 1.7 hours after the\ntrigger). Observations were carried out in the R filter. The afterglow is\ndetected in the R band images with an exposure time of 300 s.\n\n\nUsing USNO-B1 stars USNO-B1 0950-0184329 (R.A.=152.492, Dec=+5.028) and\nUSNO-B1 0949-0181744 (R.A.=152.514, Dec=+4.993) in the field, the magnitude\nof the OT was estimated as follows;\n\n\nt-t0 (hr) exp.(s) filt mag err (+/-)\n\n1.75 300 R 18.98 0.07\n\n\nAnalysis of further observations with the same filter is ongoing.\n\n\nWe thank to TUBITAK National Observatory for a partial support in using\nT100 telescope with project number 10CT100-95 and technical support.",
  "circularId": 20591,
  "createdOn": 1486117743000,
  "email": "edasonbas@gmail.com",
  "subject": "GRB 170202A: T100 observations",
  "submitter": "Eda Sonbas at NASA/GSFC  <edasonbas@gmail.com>",
  "eventId": "GRB 170202A"
}