{
  "bibcode": "2020GCN.27110....1D",
  "body": "A. de Ugarte Postigo (IAA-CSIC, DARK/NBI), J. Martikainen (NOT and \nU. Helsinki), D. Perley (LJMU), K.E. Heintz (U. Iceland), D. Xu (NAOC),\nA. Levan (Radboud U.) report on behalf of a larger collaboration:\n\nWe observed the field of GRB 200216B (Fermi GBM team GCN \n27101; D���Avanzo et al. GCN 27102) with the 2.5 m Nordic Optical \nTelescope equipped with AlFOSC. Observations consisted of 5x200s \nimaging in z-band, with mean epoch 17 Feb 2020 00:11:22 UT \n(10.647 hr after the burst). We do not detect any source within the \nrefined XRT error box (Goad et al. GCN 27106) down to a 3-sigma \nlimit of z > 23.3 mag.",
  "circularId": 27110,
  "createdOn": 1581902429000,
  "email": "deugarte@iaa.es",
  "subject": "GRB 200216B: z-band limit from NOT",
  "submitter": "Antonio de Ugarte Postigo at IAA-CSIC  <deugarte@iaa.es>",
  "eventId": "GRB 200216B"
}