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Build Swift-XRT products.

This facility is not designed for bulk processing of large numbers of datasets, please do not submit more than 2-3 jobs at any time, especially if they are likely to be long running (e.g. they use many datasets). If you have a large project you wish to perform, please contact us on

Using this form you can build an XRT light curve, spectrum or enhanced position of any object observed by Swift. Full documentation for this process is given in the online documentation. If you enter your e-mail address on the form below, an e-mail will be sent to you when the processing is complete, we may also contact you if your jobs are producing errors. Fields marked with a * are mandatory.

This service is designed for point-sources only. Results for extended sources may be incorrect.

There are still open issues related to the analysis of Swift-XRT data. Please read the XRT digest pages before drawing conclusions from the products you generate here.

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Processing will be performed using HEASOFT v6.26.1.

Select products

To reduce the load on our servers, please select only the independent products you require.

Object details

Global options

Show advanced pile-up controls?

Light curve details

*Bin length (s):

*Hardness ratio bin length (s):

Use Bayesian when below:

Spectral details

*Use which observations?

*You can specify up to 4 time regions below:

Position details

*Use which observations?


Image details

*Use which observations?