{
  "eventId": "GRB 261113A",
  "circularId": 46260,
  "format": "text/plain",
  "subject": "GRB 261113A: TNG NIR afterglow detection",
  "submitter": "Riccardo Brivio at INAF-OAB <riccardo.brivio@inaf.it>",
  "body": "R. Brivio, P. D'Avanzo (INAF-OAB), D.B. Malesani (DAWN/NBI and Radboud), A. Melandri (INAF-OAR), V. Lorenzi, H. Stoev (INAF-TNG) report on behalf of the CIBO collaboration:\n\nWe observed the field of GRB 261113A, detected by SVOM/ECLAIRs (Saccardi et. al., GCN 46244) with the Italian 3.6m TNG telescope equipped with the near-infrared camera NICS.                    \nThe observations were carried out in the J and K bands, started on 2026-11-13 at 19:07:27 UT (i.e. 4.6 hr after the burst), and lasted for about 1 hr.\n\nFrom preliminary photometry, we detect the optical/NIR counterpart (Lin et al., GCN 46247; Lei et al., GCN 46248; Li et al., GCN 46249; Yin et al., GCN 46250; Chen et al., GCN 46251; Wu et al., GCN 46252; Zhao et al., GCN 46253; Li et al., GCN 46254; Saikia et al., GCN 46256; Adami et al., GCN 46257; Gress et al. GCN 46258; Izzo et al., GCN 46259) with the following magnitudes:\n\nJ = 19.2 +/- 0.1 (Vega; calibrated against the 2MASS catalogue),\n at a mid-time of 5.4 hr after the trigger;\n\nK = 18.1 +/- 0.2 (Vega; calibrated against the 2MASS catalogue),\n at a mid-time of 4.9 hr after the trigger.",
  "eventType": [
    "GRB",
    "Afterglow"
  ],
  "submittedHow": "web",
  "createdOn": 1794613445524
}