Skip banner and navigation tools.

 |  site map

01

About these products.

Get another light curve.

Swift-XRT light curves of GRB 180721A

Last updated after receiving ObsID 00849018003, version 6

Data were analysed using HEASOFT version 6.32

Rebin this light curve| About these products.

Jump to: Energy light curves | Count-rate light curves.

From 2016 March, the light curve plots support interactive zooming and exploring. See the jsPlot documentation for details.

8 snapshots of PC data are unreliable because no centroid could be determined. 3 bins are affected and have been hidden [Why does this matter?]. List affected times/bins.

Energy light curves

Flux Light Curve

For this burst, 1 count = 3.01 x 10-11 erg cm-2 (observed flux) (Automatic spectrum).

Note that this is an time-averaged conversion factor: the true value may evolve with time.

   [What is this?][View systematics and position variation]

Show plot axis controls.

—
—

Generate postscript plot | Data file.

This webpage uses the HTML <canvas> element, which your browser does not support. Please either view the old, no-canvas page or update your browser. This webpage uses the HTML <canvas> element, which your browser does not support. Please either view the old, no-canvas page or update your browser. Working icon

Count-rate light curves

Basic Light Curve

   [What is this?][View systematics and position variation]

Show plot axis controls.

—
—

Generate postscript plot | Data file.

This webpage uses the HTML <canvas> element, which your browser does not support. Please either view the old, no-canvas page or update your browser. This webpage uses the HTML <canvas> element, which your browser does not support. Please either view the old, no-canvas page or update your browser. Working icon

Detailed Light Curve

   [What is this?][View systematics and position variation]

Show plot axis controls.

—
—
—

Generate postscript plot | Data file.

This webpage uses the HTML <canvas> element, which your browser does not support. Please either view the old, no-canvas page or update your browser. This webpage uses the HTML <canvas> element, which your browser does not support. Please either view the old, no-canvas page or update your browser. Working icon

Hardness Ratio

   [What is this?][View systematics and position variation]

Show plot axis controls.

—
—
—
—

Generate postscript plot | Data file.

This webpage uses the HTML <canvas> element, which your browser does not support. Please either view the old, no-canvas page or update your browser. This webpage uses the HTML <canvas> element, which your browser does not support. Please either view the old, no-canvas page or update your browser. Working icon

DETX and systematic error

Hide this plot.

Show plot axis controls.

—
—
—
—

Generate postscript plot | Data file.

This webpage uses the HTML <canvas> element, which your browser does not support. Please either view the old, no-canvas page or update your browser. This webpage uses the HTML <canvas> element, which your browser does not support. Please either view the old, no-canvas page or update your browser. Working icon

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.)