{
  "bibcode": "2020GCN.28724....1A",
  "body": "H. A. Ayala Solares (PSU), D.F. Cowen (PSU), J. DeLaunay (PSU),\nD. B. Fox (PSU), A. Keivani (Columbia U.), J.P. Osborne (U. Leicester),\nF. Krauss (PSU), T. Gregoire (PSU), P.A. Evans (U. Leicester) and\nJ.A. Kennea (PSU) report:\n\nSwift observed the field of IceCube 201021A (GCN Circ. 28715) between 08:56:50\n2020 October 21 and 12:05:31 on 2020 October 21, collecting a total of 3.4 ks of\ncleaned photon counting (PC) mode data. The observations used a 4-point tiling\npattern with a radius of ~0.3 degrees.\n\nWe found 4 X-ray sources, as detailed below. All of these are either known X-ray\nsources, consistent with catalogued fluxes, or are unknown but with count rate\nconsistent with the previous non-detections. We therefore do not claim any of\nthem as the likely counterpart to IceCube 201021A.\n\nThe 3-sigma upper limit in the field was in the range 5-8 x 10^-3 ct/sec.\n\nThe detected sources were:\n\nSource no:   1\nRA (J2000):  260.80883 [degrees] = 17h 23m 14.12s\nDec (J2000): +14.3492 [degrees] = +14d 20' 57.2\"\nError:       +4.5 [arcsec, 90% conf. radius]\nCount rate (0.3-10 keV): 1.2 (+0.7, -0.5) x 10-2 ct s-1\nFlux (0.3-10 keV):       5.3 (+3.2, -2.3) x 10-13 erg cm-2 s-1\nNotes: This source is consistent with 1RXS J172314.4+142103\n\n\nSource no:   2\nRA (J2000):  261.04703 [degrees] = 17h 24m 11.29s\nDec (J2000): +14.7320 [degrees] = +14d 43' 55.3\"\nError:       +5.2 [arcsec, 90% conf. radius]\nCount rate (0.3-10 keV): 7 (+4, -3) x 10-3 ct s-1\nFlux (0.3-10 keV):       3.1 (+1.9, -1.3) x 10-13 erg cm-2 s-1\n\n\nSource no:   3\nRA (J2000):  260.59538 [degrees] = 17h 22m 22.89s\nDec (J2000): +14.7598 [degrees] = +14d 45' 35.3\"\nError:       +6.3 [arcsec, 90% conf. radius]\nCount rate (0.3-10 keV): 7.2 (+2.9, -2.3) x 10-3 ct s-1\nFlux (0.3-10 keV):       3.10 (+1.27, -1.00) x 10-13 erg cm-2 s-1\n\n\nSource no:   4\nRA (J2000):  260.84848 [degrees] = 17h 23m 23.63s\nDec (J2000): +14.7720 [degrees] = +14d 46' 19.3\"\nError:       +5.0 [arcsec, 90% conf. radius]\nCount rate (0.3-10 keV): 7.4 (+3.6, -2.7) x 10-3 ct s-1\nFlux (0.3-10 keV):       3.2 (+1.5, -1.2) x 10-13 erg cm-2 s-1",
  "circularId": 28724,
  "createdOn": 1603299765000,
  "email": "tmg5746@psu.edu",
  "subject": "Swift-XRT observations of IceCube 201021A",
  "submitter": "Timothee Gregoire at Penn State  <tmg5746@psu.edu>",
  "eventId": "IceCube-201021A"
}