! Swift/XRT hardness ratio of trigger: 1320335, name: GRB 250603A ! T0 for this burst is Swift MET=770605858.816 s, = 2025 Jun 03 at 01:10:23.093 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: GRB-like (counts) READ TERR 1 READ SERR 2 NO NO NO NO NO ! PC -- hard data !Time Err (pos) Err(neg) Rate Error 161.217 89.051 -48.853 0.832873 0.112707 725.640 803.362 -475.372 0.265131 0.019765 NO NO NO NO NO ! PC -- soft data !Time Err (pos) Err(neg) Rate Error 161.217 89.051 -48.853 0.302001 0.068050 725.640 803.362 -475.372 0.043624 0.008051 NO NO NO NO NO ! PC -- hardness ratio data !Time Err (pos) Err(neg) Rate Error 161.217 89.051 -48.853 2.757844 0.724876 725.640 803.362 -475.372 6.077696 1.209668