{
  "bibcode": "2022GCN.32488....1K",
  "body": "N. P. M. Kuin (UCL-MSSL) and R. Caputo (GSFC)\nreport on behalf of the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 220826A\n91 s after the BAT trigger (Caputo et al., GCN Circ. 32484).\nA source consistent with the XRT position (Beardmore et al. GCN Circ. 32485)\nis detected in the initial UVOT exposures.\n\nThe preliminary UVOT position is:\n    RA  (J2000) =  13:45:38.51 = 206.41047 (deg.)\n    Dec (J2000) = -44:02:19.2  = -44.03866 (deg.)\nwith an estimated uncertainty of 0.45 arc sec. (radius, 90% confidence).\n\nPreliminary detections and 3-sigma upper limits using the UVOT photometric\nsystem\n(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the early exposures\nare:\n\nFilter         T_start(s)   T_stop(s)      Exp(s)           Mag\n\nwhite               91          240          147         18.12 +/- 0.05\nv                  632          827           39        >18.4\nb                  559          753           39        >18.6\nu                  303          553          246         18.69 +/- 0.13\nw1                 682          702           19        >17.7\nm2                 831          851           19        >17.8\nw2                 608          802           39        >19.2\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.110 in the direction of the burst\n(Schlegel et al. 1998).",
  "circularId": 32488,
  "createdOn": 1661539657000,
  "email": "npkuin@gmail.com",
  "subject": "GRB 220826A: Swift/UVOT Detection",
  "submitter": "Paul Kuin at MSSL  <npkuin@gmail.com>",
  "eventId": "GRB 220826A"
}