{
  "bibcode": "2011GCN.12754....1H",
  "body": "Veli-Pekka Hentunen, Markku Nissinen and Tuomo Salmi (Taurus Hill\nObservatory, Varkaus, Finland) report:\n\nGRAS 017 (Global-Rent-a-Scope, Nerpio, Spain) CDK17 17\" (0.43 m)\n f/6.8 and FLI ProLine CCD camera were used to detect GRB 111228A\noptical afterglow 9.0 hours after the burst trigger. The observations were \nstarted at 2011-12-29 00:35:06 (UT) and stopped at 2011-12-29 00:58:26 \n(UT). Nine photometric R observations with 120s exposure times were \nmade. The afterglow was detected at following position RA 10 00 16.07\nand DEC +18 17 52.1.\n\nThe following magnitude was obtained from the observations using \nUSNO-B1 1083-0199853 (R2 = 17.28) as the comparison:\n\nTmid(s)+T0    Filter        Exp (sec)     Mag      Mag err   Limit\n32522               R           9x120          18.7        0.2        19.8\n\nA png image of our observations is available at the following URL link:\nhttp://cutenews.kassiopeia.net/data/upimages/GRB111228A_web.png",
  "circularId": 12754,
  "createdOn": 1325136278000,
  "email": "veli-pekka.hentunen@kassiopeia.net",
  "subject": "GRB 111228A: GRAS017 optical observations",
  "submitter": "Veli-Pekka Hentunen at Taurus Hill Obs,A95  <veli-pekka.hentunen@kassiopeia.net>",
  "eventId": "GRB 111228A"
}