3-day GOES X-ray Plot

The GOES X-ray Flux plot contains 5 minute averages of solar X-ray output in the 1-8 Angstrom (0.1-0.8 nm) and 0.5-4.0 Angstrom (0.05-0.4 nm) passbands. Data from the SWPC Primay GOES X-ray satellite is shown. As of Feb 2008, no Secondary GOES X-ray satellite data is available. Some data dropouts will occur during satellite eclipses.

August 26, 2008 -- GOES 10 X-ray outages due to spacecraft eclipse season started August 23 and will continue for about 40 days (October 2). Maximum duration will reach 68 minutes in the middle of the interval September 11 from 0330UT to 0438UT. Currently, X-ray sensors (XRS) are not operational on other GOES satellites to fill in during the GOES-10 eclipses.

Other plots of interest: A white background version of this plot; GOES 1-min X-rays; SWPC Real-time Monitors.

SWPC X-ray alerts are issued at the M5 (5x10E-5 Watts/m2) and X1 (1x10E-4 Watts/m2) levels, based upon 1-minute data. Large X-ray bursts cause short wave fades for HF propagation paths through the sunlit hemisphere. Some large flares are accompanied by strong solar radio bursts that may interfere with satellite downlinks.

This page updates dynamically every 5 minutes.

NOAA / Space Weather Prediction Center