{
  "bibcode": "2010GCN.10786....1D",
  "body": "A. de Ugarte Postigo (OAB-INAF), A.J. Castro-Tirado (IAA-CSIC),\nA. Guijarro and M. Alises (CAHA) report on behalf of a larger\ncollaboration:\n\n\"We have observed the field of GRB 100522A (Troja et al. GCNC\n10784) with the 3.5m CAHA telescope (+Omega2000) in J and Ks\nbands. The observations were obtained during twilight, with a\nvery high background. In a preliminary analysis we do not detect\nany source within the XRT error circle in any of the images. The\n3x60s combined J-band exposure, has a mean time  04:20:27 UT\nand a 3-sigma limiting magnitude of 17.9. The 4x60s combined\nK-band exposure has a mean time of 04:31:50 and a limiting\nmagnitude of 16.3.\"",
  "circularId": 10786,
  "createdOn": 1274508880000,
  "email": "deugarte@iaa.es",
  "subject": "GRB 100522A: NIR observations from CAHA",
  "submitter": "Antonio Deugarte at IAA-CSIC  <deugarte@iaa.es>",
  "eventId": "GRB 100522A"
}