{
  "bibcode": "2022GCN.32302....1S",
  "body": "M.H. Siegel (PSU) reports on behalf of the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 220627A\n130224 s after the LAT trigger (Di Lalla, et al., GCN Circ. 32283).\nNo optical afterglow consistent with the optical position (de Wet et al., \nGCN Circ. 32289, Izzo et al., GCN Circ. 33391) or X-ray afterglow\n(Gropp et al., GCN Circ. 32296) is detected in the initial UVOT exposures.\nPreliminary 3-sigma upper limits using the UVOT photometric system\n(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the initial exposures are:\n\nFilter         T_start(s)   T_stop(s)      Exp(s)         Mag\n\nu               130224       148828         4854         >22.0\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.047 in the direction of the burst\n(Schlegel et al. 1998).",
  "circularId": 32302,
  "createdOn": 1656593999000,
  "email": "mhs18@psu.edu",
  "subject": "GRB 220627A: Swift/UVOT Upper Limits",
  "submitter": "Mike Siegel at PSU/Swift MOC  <mhs18@psu.edu>",
  "eventId": "GRB 220627A"
}