(All information courtesy of the instrument teams.)
Previous IAU Circulars
RA(J2000) = 20h 56m 38.44s Dec(J2000) = -12d 02' 36.53"(5.5 arcsec uncertainty, 90% containment). We cannot determine whether the source is fading.
RA(J2000) = 20h 55m 42.49s Dec(J2000) = -11d 57' 58.8"(2.3 arcsec uncertainty, 90% containment). This position is 4 arcsec away from the catalogued XMM Slew Survey object XMMSL1 J205542.2-115756. The 1-sigma uncertainty on the positions in the slew catalogue is 8 arcsec; thus, this X-ray source is consistent with being XMMSL1 J205542.2-115756 and is unrelated to GRB 130821A.