{
  "circularId": 40688,
  "eventId": "EP250610a",
  "bibcode": "2025GCN.40688....1B",
  "createdOn": 1749642987095,
  "format": "text/plain",
  "submittedHow": "web",
  "subject": "EP250610a: TNG NIR upper limit",
  "submitter": "Riccardo Brivio at INAF-OAB <riccardo.brivio@inaf.it>",
  "body": "R. Brivio, P. D'Avanzo, M. Ferro, S. Campana (INAF-OAB), L. Izzo (INAF - OACn), D. B. Malesani (DAWN/NBI & Radboud Univ.), R. Salvaterra (INAF-IASF Milan), A. Melandri (INAF-OAR), V. Lorenzi (INAF-TNG) report on behalf of the CIBO collaboration:\n\n\nWe observed the field of EP250610a detected by EP/WXT (Zhang et al., GCN 40660) with the Italian 3.6m TNG telescope, located in Canary Islands (Spain), equipped with the near-infrared camera NICS in imaging mode. A series of images were obtained with the J filter on 2025-06-11 at a mid-time of about 18.1 hours after the burst.  \n\nNo clear afterglow candidate is detected within the XRT position (source 1, Evans et al., GCN 40662) down to a 3-sigma limiting magnitude of J ~ 22 (Vega; calibrated against the 2MASS catalogue)."
}