[SFDXA] MAJOR SOLAR FLARE

[Bill]

> MAJOR SOLAR FLARE: Earlier today (Nov. 29th at 1311UT), Earth-orbiting satellites detected the biggest solar flare in more than 3 years. NASA's Solar Dynamics Observatory recorded this extreme-ultraviolet movie of the M4.4category blast:
> 
> 
> 
> X-rays and UV radiation from the flare ionized the top of Earth's atmosphere, producing a shortwave radio blackout over the South Atlantic: map. Ham radio operators and mariners may have noticed strange propagation effects at frequencies below 20 MHz, with some transmissions below 10 MHz completely extinquished. 
> 
> Remarkably, this flare was even bigger than it seems. The blast site is located just behind the sun's southeastern limb. As a result, the explosion was partially eclipsed by the body of the sun. It might have been an X-class event.
> 
> The flare also hurled a significant coronal mass ejection (CME) into space, shown here in a coronagraph image from the Solar and Heliospheric Observatory (SOHO):
> 
> 
> 
> This CME will not hit Earth. It is outside the strikezone for geoeffective solar storms. If, however, it were coming our way, we would be anticipating a strong geomagnetic storm. Maybe next time!
> 
> "Next time" could be just days away. The hidden sunspot that produced this major event will rotate onto the Earthside of the sun during the next day or two. Then its ability to spark geomagnetic storms will be greatly increased.  Instant solar flare alerts: SMS Text.
> 
>  	
> 
> 
> Solar wind
> speed: 370.4 km/sec
> density: 1.6 protons/cm3
> more data: ACE, DSCOVR
> Updated: Today at 2005 UT 
> 
> X-ray Solar Flares
> 6-hr max: M1 1409 UT Nov29 
> 24-hr: M4  1311 UT Nov29  
> explanation | more data
> Updated: Today at: 2010 UT 
> 
> 
> 
> Daily Sun: 29 Nov 20
> 
> 
> Sunspot AR2786 has a 'beta-gamma' magnetic field that habors energy for M-class solar flares. Credit: SDO/HMI
> 
> 
> 
> Sunspot number: 67 
> What is the sunspot number?
> Updated 29 Nov 2020
> 
> Spotless Days
> Current Stretch: 0 days
> 2020 total: 206 days (62%)
> 2019 total: 281 days (77%)
> 2018 total: 221 days (61%)
> 2017 total: 104 days (28%)
> 2016 total: 32 days (9%) 
> 2015 total: 0 days (0%) 
> 2014 total: 1 day (<1%)
> 2013 total: 0 days (0%)
> 2012 total: 0 days (0%)
> 2011 total: 2 days (<1%)
> 2010 total: 51 days (14%)
> 2009 total: 260 days (71%)
> 2008 total: 268 days (73%) 
> 2007 total: 152 days (42%)
> 2006 total: 70 days (19%)
> Updated 29 Nov 2020
> 
> Thermosphere Climate Index
> today: 5.83x1010 W Cold
> Max: 49.4x1010 W Hot (10/1957)
> Min: 2.05x1010 W Cold (02/2009)
> explanation | more data: gfx, txt
> Updated 28 Nov 2020
> 
> The Radio Sun 
> 10.7 cm flux: 110 sfu
> explanation | more data
> Updated 29 Nov 2020
> 
> 
> 
> Cosmic Rays Solar minimum is underway. The sun's magnetic field is weak, allowing extra cosmic rays into the solar system. Neutron counts from the University of Oulu's Sodankyla Geophysical Observatory show that cosmic rays reaching Earth in 2020 are near a Space Age peak.
> 
> Oulu Neutron Counts
> Percentages of the Space Age average:
> today: +9.1% High
> 48-hr change: -0.3%
> Max: +11.7% Very High (12/2009)
> Min: -32.1% Very Low (06/1991)
> explanation | more data
> Updated 29 Nov 2020 @ 0700 UT
> 
> 
> 
> 
> 
> 
> Current Auroral Oval: 
> 
> 
> 
> Switch to: Europe, USA, New Zealand, Antarctica
> Credit: NOAA/Ovation
> 
> 
> 
> Planetary K-index
> Now: Kp= 2  quiet
> 24-hr max: Kp= 3 quiet
> explanation | more data
> 
> Interplanetary Mag. Field
> Btotal: 4.7 nT
> Bz: 2.2 nT north 
> more data: ACE, DSCOVR
> Updated: Today at 2005 UT 
> 
> 
> 
> Coronal Holes: 29 Nov 20
> 
> 
> 
> There are no large coronal holes on the Earthside of the sun. Credit: SDO/AIA
> 
> 
> 
> Noctilucent Clouds The northern-hemisphere season for noctilucent clouds has ended. The southern season begins in November. Between now and then, Earth has no noctilucent clouds. 
> 
> 
> 
> 
> Switch view: Europe, USA, Asia, Polar 
> 
> Updated at: 
> 
> 
> 
> SPACE WEATHER
> NOAA Forecasts	
> 
> 
> 
> Updated at: 2020 Nov 28 2200 UTC
> 
> FLARE
> 0-24 hr
> 24-48 hr
> CLASS M
> 15 %
> 15 %
> CLASS X
> 01 %
> 01 %
> 
> 
> 
> Geomagnetic Storms:
> Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm
> 
> Updated at: 2020 Nov 28 2200 UTC
> 
> Mid-latitudes 
> 0-24 hr
> 24-48 hr
> ACTIVE
> 10 %
> 10 %
> MINOR
> 01 %
> 01 %
> SEVERE
> 01 %
> 01 %
> 
> High latitudes 
> 0-24 hr
> 24-48 hr
> ACTIVE
> 20 %
> 20 %
> MINOR
> 20 %
> 20 %
> SEVERE
> 10 %
> 10 %
>  
> 
> https://spaceweather.com
> 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/sfdxa/attachments/20201129/bc6eeb1b/attachment-0001.html>