{
  "bibcode": "2015GCN.17506....1N",
  "body": "A. Nicuesa Guelbenzu (TLS Tautenburg), P. Wiseman, P. Schady and J. \nGreiner (all MPE Garching) report on behalf of the GROND team:\n\nWe continued to observe the field of GRB 150222A (Swift trigger 632180; \nBernadini et al., GCN 17486) for a second night, simultaneously in \ng'r'i'z'JHK with GROND (Greiner et al. 2008, PASP 120, 405) mounted at \nthe 2.2 m MPG telescope at ESO La Silla Observatory (Chile).\n\nObservations began at 06:25:38 UT on February 24, ~34 hours after the \nGRB trigger. They were performed at an average seeing of 1.3\" and at an \naverage airmass of 1.1//.\nIn 106 min of total exposures in g'r'i'z', we detect a source in all \noptical bands towards the north-eastern edge of the the 1.7\" enhanced \nSwift-XRT error circle (Beardmore et al., GCN 17494) , at a position \nconsistent with that reported in Nicuesa Guelbenzu et al. (GCN 17495).\nIn 115 min of total NIR exposures in the JHK bands, no source is \ndetected within the enhanced XRT error circle.\n\nWe detect no fading of the source between the two epochs, and therefore \nsuggest that this is not the afterglow, but could be the host galaxy \ninstead, unless we caught an afterglow plateau phase.",
  "circularId": 17506,
  "createdOn": 1424961945000,
  "email": "wiseman@mpe.mpg.de",
  "subject": "GRB 150222A: Further GROND Observations",
  "submitter": "Philip Wiseman at MPE/Swift  <wiseman@mpe.mpg.de>",
  "eventId": "GRB 150222A"
}