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Home > GRB products > ToO GRBs > GRB 250917B > Source 1 > light curve
Swift-XRT light curves of GRB 250917B — Source 1
Last updated at 2025-09-19 at 05:44:16 UTC
0
01
The source position (in the XRT co-ordinate frame) used for these products was: RA (J2000.0) = 291.3458 degrees, Dec (J2000.0) =+11.1143 degrees.
Rebin this light curve
Binned to constant counts/bin
9 snapshots of PC data are unreliable because no centroid could be determined. 2 bins are affected and have been hidden [Why does this matter?].
List affected times/bins.
Snapshots with no centroid
- 141 - 1084 s
- 4620 - 5387 s
- 5654 - 6644 s
- 21305 - 22429 s
- 121788 - 123553 s
- 129152 - 129697 s
- 132964 - 133403 s
- 138557 - 139234 s
- 144167 - 144927 s
PC-mode bins that are not displayed
- 141 - 28359 s
- 121788 - 144927 s
Flux Light Curve
The counts-to-flux conversion is 2.5309991151654E-11 erg cm-2 ct-1, from the automatic spectral fit.
Show plot axis controls.
Generate postscript plot | Data file.
Basic Light Curve
Show plot axis controls.
Generate postscript plot | Data file.
Detailed Light Curve
Show plot axis controls.
Generate postscript plot | Data file.
Hardness Ratio
Show plot axis controls.
Generate postscript plot | Data file.
Data products
Download all light curve files for this burst: [tar file][gzipped tar file][zip file].
Or download individual files: (Includes systematic error.
Includes data with no WT centroid.)