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Old 22-09-2018, 03:28 PM
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silv (Annette)
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GOES x-ray flux plot: 3 artefacts/disturbances

On Sept 20 between 9 and 9.30am UTC three spikes appear on the GOES X-ray flux plotted with data from SWPC. What do you think could have caused these?

http://www.polarlicht-vorhersage.de/...-20_102000.png

The usual plot looks like this - the regular 1.5 hour plateau apparently is a new "feature" from the past four 24-hour cycles.
http://www.polarlicht-vorhersage.de/goes/2018-09-04_055900_2018-09-21_105900.png


What's also notable is that the spikes get normalized out/disappear somehow when you choose different data sets. E.g. in this image which includes 43 hours more data they're gone http://www.polarlicht-vorhersage.de/...-22_035900.png

You can play with data sets by replacing the date and time stamp in the URL itself. Or by choosing them from the original webpage http://www.polarlicht-vorhersage.de/goes_archive


With the same timestamp, other GOES monitoring systems don't report a spike. But ~ 12 hours later, at 9pm UTC, GOES-15 hp value goes literally south. https://www.swpc.noaa.gov/products/goes-magnetometer (attch as screenshot bc it'll vanish in a few hours)
I guess, this could be a normal incident in the fluctuating planetary field around the equinox? (Goes-15 is stationed above ~135* longitude West. hp = "magnetic field vector component, points northward, perpendicular to the orbit plane which for a zero degree inclination orbit is parallel to Earth's spin axis".)

And the graph for incoming solar wind "Radial Speed km/s" dips at 6.45am UTC.
http://www.polarlicht-vorhersage.de/...-20_102000.png

.

My first idea was actually that the new Chinese satellites could have bumped the GOES satellite during positioning. The Chinese rocket launch/booster burn on Sept 19 2pm UTC was documented here on ISS http://www.iceinspace.com.au/forum/s...d.php?t=170199
The 2nd idea was that the new plateau feature indicates a malfunction and the 3 spikes are one more symptom of the error.
The 3rd idea is the relation to the equinox phenomenon. Archived data would be needed , reaching further back than the 365 days provided in the first URL.

What's your idea?
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Click for full-size image (www.polarlicht-vorhersage.de:ace:2018-09-19_205900_2018-09-20_102000.png.png)
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Old 23-09-2018, 12:59 PM
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The bug became a feature when it repeated itself yesterday.
In the same time frame, the one with the plateau - but at different time stamps compared to Sept 20th. http://www.polarlicht-vorhersage.de/...-22_104800.png
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Old 23-09-2018, 01:49 PM
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It may just be an Xray spike trying to find Donald Trump's brain - they need a fair bit of power to try to find it, and it caused a massive disturbance in the Continuum.
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