{
  "bibcode": "2009GCN..9180....1K",
  "body": "Brajesh Kumar, Rupak Roy, Brijesh Kumar and S. B. Pandey (ARIES, NainiTal,\nIndia, on behalf\nof larger Indian GRB collaboration).\n\nWe observed swift GRB 090417B (GCN 9135) using 104 cm Sampurnanand optical\ntelescope\nat A.R.I.E.S. Nainital on 17th April, 2009 at 16.244 hrs UT, under good sky\nconditions using\n2k*2k CCD detector.\n\nNo afterglow candidate was found in our co-added R_c band image (exp time =\n5*300 sec)\nwithin the error region of BAT. Photometry of the stacked frame poses an\nupper limit of\n~ 21 mag, in comparison to nearby USNO-B1 stars.",
  "circularId": 9180,
  "createdOn": 1240288080000,
  "email": "rupakroy1980@gmail.com",
  "subject": "GRB 090417B: Optical observation",
  "submitter": "Rupak Roy at ARIES  <rupakroy1980@gmail.com>",
  "eventId": "GRB 090417B"
}