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LYRA: the alternative to GOES flare monitoring

According to http://www.swpc.noaa.gov, the GOES-15 data provision is temporarily interrupted.

PROBA2 LYRA has set-up an alternative for the GOES flare monitoring service using the zirconium channel of the PROBA2/LYRA radiometer (proba2.sidc.be) as a GOES proxy. It is especially useful when GOES is unavailable, as happened on March 21, 22 and 23. See http://solwww.oma.be/users/dammasch/GoesVsLyra.html.

 

Disturbed radio communication and satellite navigation on Jan 22, 2012

The GNSS research group of the Solar-Terrestrial Centre of Excellence measured ionospheric disturbances on Jan 22 which impact the communication and satellite navigation at that moment.

Solar activity - what can be expected?

The Sun has again an activity revival since Jan 16, not an extra ordinary revival, but high. No records were broken. There was a series of plasma ejections, not straight to Earth, but glancing blows from above. The most dangerous aspect up to now is the ongoing proton event.
For aurora-watchers: the chance for aurora in Belgium is very small.

The best of ... 2011!

A compilation of the most memorable space weather moments of 2011 can be found underneath. Using the fantastic (J)Helioviewer software, a ***MOVIE*** was created containing one or more clips of each event.

The Sun in August 2011

Solar Activity

The Sun is shifting to an even higher activity level compared to the previous month. The higher values of the International Sunspot Number and the 10cm flux translated into a series of events: a sequel of Earth-directed CME's and flares, the up to now strongest flare of the current cycle and a proton event.

A spectacular solar plasma eruption

On June 07, 2011, there was a spectacular plasma eruption on the Sun. The shock ahead of the plasma cloud skimmed Earth on June 09, 20:00UT. We give a chronological order of how the Space Weather Forecast Centre of Belgium handled the event.
 

June 07, 08:00UT - 10:00BLT

Sun, Moon and Earth line up for PROBA2

The best of ... 2010!

A compilation of the most memorable space weather moments of 2010 can be found underneath. Using the fantastic (J)Helioviewer software, a ***MOVIE*** was created containing one or more clips of each event.

Looking back at the Seventh European Space Weather Week

European space weather is quickly growing in professionalism and maturity. This has been particarly noticeable at the annual European Space Weather Week, ESWW. Whereas in the past years we still had many wooly discussions of the popular kind, these days we discuss hard core developments, services and new insights. Something is clearly changing.

The 01 August 2010 event - Fully screened

On Aug 01, a series of solar events gave rise to a combination of Earth-directed halo CME's. We screen the event based on SDO and STEREO-Ahead movies, and ACE data.

What is peculiar is the fact that the accompagnied flare was only of a moderate class. It was a combination of different events in a fast sequence. In a way of speaking, all the energies involved in each process added to each other and resulted in a final energetic impact on Earth.

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