{
  "bibcode": "2013GCN.14964....1G",
  "body": "Dirk Grupe (PSU) reports on behalf of the Swift team:\n\nSwift reobserved the field of the ground-detected GRB 130623A \n(Cummings, GCN circ. 14921) again on 2013-June-30 for 10.25 ks. \nThe source reported initially in Grupe et al. (circular 14926) \nseems to have faded. We do not detect the source anymore and \ncan only measure a 3 sigma upper limit at a level of \n1.9e-3 counts/s in the XRT. \nThis measurement suggests that the source reported in\nGrupe et al. (circular 14926) may be the X-ray\nafterglow of GRB 130623A.\n\n\nThe results of the XRT-team automatic analysis are available at\nhttp://www.swift.ac.uk/xrt_products/00020284.\n\nThis circular is an official product of the Swift XRT team.\n\n[GCN OPS NOTE(02-Jul-13),  Per author's request, the typo\n\"...is may be the...\" was changed to \"...may be the...\".]",
  "circularId": 14964,
  "createdOn": 1372772766000,
  "email": "dxg35@psu.edu",
  "subject": "GRB 130623A: Second Swift-XRT  observation",
  "submitter": "Dirk Grupe at PSU/Swift-XRT  <dxg35@psu.edu>",
  "eventId": "GRB 130623A"
}