{
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of luca.izzo@inaf.it",
  "format": "text/plain",
  "submitter": "luca.izzo@inaf.it",
  "createdOn": 1781250878465,
  "eventId": "GRB 260610B",
  "editedOn": 1781361705888,
  "subject": "GRB 260610B / AT2026owq: OASDG optical observations",
  "submittedHow": "web",
  "body": "L. Izzo (INAF-OACn, DARK/NBI, OASDG) reports:\n\nWe observed the counterpart of GRB 260610B (Fermi GBM team, GCN #44901) using the 0.5-m T1 telescope of the Osservatorio Astronomico S. Di Giacomo (OASDG), located in Agerola, Italy. Our observations started on 2026 June 11 at 21:44 UT, 0.917 days after the GRB trigger. We acquired a series of 8 × 300 s images in the Rc and Ic filters.\n\nThe optical counterpart, also reported as AT2026owq (O'Neill et al., GCN #44903; Watson et al., GCN #44905; Zhu et al., GCN #44909; Gillanders et al., GCN #44910; Akl et al., GCN #44911; O'Neill et al., GCN #44914; Moskvitin et al., GCN #44918; Perley et al., GCN #44919), is clearly detected in both stacked images.\n\nWe measure the following preliminary magnitudes (AB), which have been calibrated against nearby stars from the Pan-STARRS catalog and appropriately transformed to Rc and Ic magnitudes. \n\nRc = 19.44 +/- 0.16 mag\nIc = 19.28 +/- 0.16 mag ",
  "version": 2,
  "circularId": 44920
}