(All information courtesy of the instrument teams.)
Previous IAU Circulars
--------------------------------------------- RA(2000), deg Dec(2000), deg --------------------------------------------- Center: 284.716 (18h 58m 52s) +16.172 (+16d 10' 20") Corners: 284.892 (18h 59m 34s) +16.078 (+16d 04' 42") 284.882 (18h 59m 32s) +16.153 (+16d 09' 09") 284.540 (18h 58m 10s) +16.265 (+16d 15' 55") 284.550 (18h 58m 12s) +16.191 (+16d 11' 28") ---------------------------------------------The error box area is 84 sq. arcmin, and its maximum dimension is 23 arcmin (the minimum one is 4 arcmin). The Sun distance was 102 deg.
T0+[day] MID-UT T-EXP[sec] 5-sigma limits ------------------------------------------------------------------------------------------------ 5.35 2021-04-29 17:05 1020 g'>18.5, Rc>18.4, Ic>17.8 ------------------------------------------------------------------------------------------------ T0+ : Elapsed time after the burst T-EXP: Total Exposure timeWe used the PS1 catalog for flux calibration. The magnitudes are expressed in the AB system. The images were processed in real-time through the MITSuME GPU reduction pipeline (Niwano et al. 2021, PASJ, Vol.73, Issue 1, Pages 4-24; https://github.com/MNiwano/Eclaire).