{
  "submittedHow": "email-legacy",
  "body": "Viraj Karambelkar (Caltech), Tomas Ahumada (Caltech), Geoffrey Mo (MIT),\nDanielle Frostig (MIT), Robert Stein (Caltech), Nathan Lourie (MIT), Robert\nSimcoe (MIT), Mansi Kasliwal (Caltech)\n\n\n\nWe observed the field of the GRB 240414A (GCN #36084, #36083, #36087, #36088,\n#36093, #36095, #36097, #36100, #36101) in the near-infrared J-band with\nthe Palomar 1-m telescope, equipped with the 1 square degree WINTER camera\n(Lourie et al. 2020).\n\nOur observations started at UTC 2024-04-14T20:16:20 (MJD 60414.45) and\nlasted a total of 50 minutes. The images were processed through the WINTER\ndata reduction pipeline implemented using mirar (\nhttps://zenodo.org/records/10888437), with image subtraction performed\nrelative to reference images built from the UKIRT Hemisphere Survey (Dye et\nal. 2017).\n\nWe do not detect the optical counterpart reported by GCN #36084, #36085,\n#36097, #36101 in the J-band WINTER images, and derive a limiting mag. of J\n~ 19 mag (AB).\n\nWINTER (Wide-field INfrared Transient ExploreR) is a partnership between\nMIT and Caltech, housed at Palomar Observatory, and funded by NSF MRI, NSF\nAAG, the David and Lucille Packard Foundation, and the MIT Kavli Institute\nfor Astrophysics and Space Research\n",
  "eventId": "GRB 240414A",
  "subject": "GRB240414A : J-band upper limits from WINTER",
  "bibcode": "2024GCN.36103....1K",
  "submitter": "Viraj Karambelkar at Indian Inst of Tech,Bombay <karambelkarvraj21197@gmail.com>",
  "createdOn": 1713135341228,
  "circularId": 36103
}