! Swift/XRT hardness ratio of trigger: 21547, name: GRB 230307A ! T0 for this burst is Swift MET=699896677.17 s, = 2023 Mar 07 at 15:44:06.289 UT "; ! T0 for this burst is Swift MET=699896677.17, = 2023 Mar 07 at 15:44:06.289 UT " if ( defined(699896677.17) && defined(2023 Mar 07 at 15:44:06.289 UT) ); ! The hard band is 1.51-10 keV "; ! The soft band is 0.3-1.5 keV "; ! For details of light-curve production, see Evans et al. 2007, A&A, 469, 379 "; ! There are 3 datasets: Hard, Soft, and the ratio "; ! Columns are as labelled ! BINMODE: READ TERR 1 READ SERR 2 NO NO NO NO NO ! PC -- hard data !Time Err (pos) Err(neg) Rate Error 136355.935 266565.587 -52765.534 0.003049 0.000835 NO NO NO NO NO ! PC -- soft data !Time Err (pos) Err(neg) Rate Error 136355.935 266565.587 -52765.534 0.005891 0.001133 NO NO NO NO NO ! PC -- hardness ratio data !Time Err (pos) Err(neg) Rate Error 136355.935 266565.587 -52765.534 0.517631 0.173227