The GOES X-ray flux plot contains 1 minute averages of solar X-rays 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 Primary and Secondary GOES X-ray satellites are shown. Some data dropouts from the Primary satellite will occur during satellite eclipses.

During the spring and fall, GOES satellites experience eclipses in which the Earth or moon blocks the X-ray instrument view to the sun for a short period every day. Eclipse season lasts for about 45 to 60 days and ranges from minutes to just over an hour. At these times there is a gap in the XRS signal shown.

Other plots of interest: 3-day GOES 5-min X-rays; SWPC Real-time Monitors.

SWPC X-ray alerts are issued at the M5 (5x10E-5 Watts/m2) level, 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.

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NOAA / Space Weather Prediction Center

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