! Swift/XRT detailed lightcurve of trigger: 1315630, name: GRB 250520A ! T0 for this burst is Swift MET=769401772.48 s, = 2025 May 20 at 02:42:16.831 UT ! Data covers 0.3-10 keV ! For details of light-curve production, see Evans et al. 2007, A&A, 469, 379 ! BINMODE: READ TERR 1 2 READ SERR 3 !Time T_+ve T_-ve Rate Ratepos Rateneg BGrate BGerr FracExp ! WT data 153.834 5.400 -6.118 2.851263e+00 5.514322e-01 -5.515610e-01 1.114729e-01 7.882324e-02 1.000000 NO NO NO NO NO ! PC data 178.646 7.871 -12.188 2.262208e+00 5.072875e-01 -5.072875e-01 2.808742e-03 1.621628e-03 1.000000 205.846 18.280 -19.329 1.223232e+00 2.743029e-01 -2.743029e-01 1.497992e-03 8.648660e-04 1.000000 240.967 15.755 -16.840 1.393988e+00 3.125939e-01 -3.125939e-01 1.728452e-03 9.979225e-04 1.000000 295.848 33.585 -39.127 6.684677e-01 1.466659e-01 -1.466659e-01 1.549648e-03 6.326412e-04 1.000000 396.641 68.188 -67.207 3.023683e-01 6.826315e-02 -6.826315e-02 1.396822e-03 4.417139e-04 0.999988 556.412 98.973 -91.583 9.702364e-02 2.554706e-02 -2.554706e-02 1.513005e-03 3.906563e-04 1.000000 799.121 157.141 -143.736 8.216551e-02 1.873629e-02 -1.873629e-02 1.277650e-03 2.856912e-04 1.000000 1202.687 187.336 -246.424 7.319001e-02 1.482953e-02 -1.482953e-02 1.905418e-03 2.905735e-04 1.000000 22018.298 12458.921 -5316.826 8.047782e-03 1.542204e-03 -1.542204e-03 3.569572e-04 1.723406e-05 0.305941 NO NO NO NO NO ! PC upper limits 45639.429 280705.228 -1643.547 9.8670e-04 0.0000e+00 0.0000e+00 1.1243e-04 3.9168e-06 0.0440