Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 25476

GRB 190823A: Swift-XRT observations
2019-08-25T19:04:38Z (5 years ago)
Elena Ambrosi at INAF-IASF <>
E. Ambrosi (INAF-IASFPA), A. DAi (INAF-IASFPA) and V. D Elia (ASDC)

report on behalf of the Swift-XRT team:

Swift-XRT has performed follow-up observations of the MAXI-detected

burst GRB 190823A (Iwakiri et al. GCN circ. 25456) in a series of

observations tiled on the sky.

Total exposure time is 1.8 ks, distributed over 7 tiles. The data were

between T0+12.1 ks and T0+18 ks.

One uncatalogued X-ray source has been detected, with the following details:

RA (J2000.0):      279.68736d = 18:38:44.97

Dec (J2000.0):    -43.52789d = -43:31:40.4

Error: 8.6 arcsec (radius, 90% conf.)

Count-rate:   4.1 (+1.7, -1.3) ��10^-2 ct s^ -1

Distance: 18.6 arcmin from MAXI position

The results of the XRT-team automatic analysis of the tiled XRT

observations, including a position-specific upper limit calculator, are

available at .

This circular is an official product of the Swift-XRT team.
Looking for U.S. government information and services? Visit