ARLA/CLUSTER: Condições solares

[Carlos Mourato]

Caros colegas
Condições solares para as 24:00 correntes.
Como podem observar, estamos com o impressionante SSN de "Zero" redondinho.
Assim não existe HF via skywave para ninguem. Tá dificil de começar a haver
propagação com alguma estabilidade!

  SPACE WEATHER
Current conditions  *Solar wind*
speed: *616.8 *km/sec
density: *0.6 *protons/cm3
explanation <http://spaceweather.com/glossary/solarwinddata.html> | more
data <http://www.sec.noaa.gov/ace/MAG_SWEPAM_24h.html>
Updated: Today at 1146 UT   *X-ray Solar Flares*
6-hr max: *B2 *0730 UT Dec19
24-hr: *B4 *0045 UT Dec19
explanation <http://spaceweather.com/glossary/flareclasses.html> |
more data<http://www.sec.noaa.gov/rt_plots/xray_5m.html>
Updated: Today at: 1145 UT     Daily Sun: 19 Dec 07
<http://www.spaceweather.com/images2007/19dec07/midi512_blank.gif?PHPSESSID=bpmfe0mg6dfjv7qsr52nmplic3>



Sunspot 978 has rotated over the sun's western limb leaving the sun once
again blank. Credit: SOHO/MDI
    *Sunspot number: 0 *
What is the sunspot number?
<http://spaceweather.com/glossary/sunspotnumber.html>Updated 19 Dec 2007
<http://spaceweather.com/glossary/sunspotnumber.html>    Far side of the
Sun:  <http://www.spaceweather.com/images2007/16dec07/midi_farside_blank.gif?PHPSESSID=bpmfe0mg6dfjv7qsr52nmplic3>
 This
holographic image <http://spaceweather.com/glossary/farside.html> reveals no
sunspots on the farside of the sun. Image credit: SOHO/MDI    *Planetary
K-index*
Now: *Kp= 2 *quiet
24-hr max: *Kp= 4 *unsettled
explanation <http://www.spaceweather.com/glossary/kp.html> | more data
<http://www.sec.noaa.gov/rt_plots/kp_3d.html>    Current Auroral Oval:
<http://www.sec.noaa.gov/pmap/gif/pmapN.gif>

Switch to: Europe <javascript:setPOESEurope()>, USA <javascript:setPOESUS()>,
New Zealand <javascript:setPOESAustralia()> <javascript:setPOESUS()>,
Antarctica <javascript:setPOESAntarctica()>
Credit: NOAA/POES
Updated: 2007 Dec 19 1016 UT
What is the auroral
oval?<http://www.northern-lights.no/english/what/oval.shtml>

      *Interplanetary Mag. Field*
Btotal: *5.1 *nT
Bz: *0.4 *nT *south *
explanation <http://spaceweather.com/glossary/imf.html> | more
data<http://www.sec.noaa.gov/ace/MAG_24h.html>
Updated: Today at 1147 UT

  Coronal Holes:

  <http://www.spaceweather.com/images2007/16dec07/coronalhole_hinode_blank.jpg?PHPSESSID=bpmfe0mg6dfjv7qsr52nmplic3>

  Earth is inside a solar wind stream flowing from the indicated coronal
hole. Credit: Hinode X-ray Telescope

        SPACE WEATHER
NOAA Forecasts



     Updated at: 2007 Dec 18 2203 UTC

     FLARE
 0-24 hr
 24-48 hr
 CLASS M
 05 %
 01 %
 CLASS X
 01 %
 01 %

      Geomagnetic Storms:
Probabilities for significant disturbances in Earth's magnetic field are
given for three activity levels:
active<http://spaceweather.com/glossary/geostorm.html>,
minor storm <http://spaceweather.com/glossary/geostorm.html>, severe
storm<http://spaceweather.com/glossary/geostorm.html>

  Updated at: 2007 Dec 18 2203 UTC

  Mid-latitudes

   0-24 hr
 24-48 hr
 ACTIVE
 50 %
 50 %
 MINOR
 20 %
 20 %
 SEVERE
 05 %
 05 %

  High latitudes

   0-24 hr
 24-48 hr
 ACTIVE
 50 %
 50 %
 MINOR
 25 %
 25 %
 SEVERE
 10 %
 10 %

-- 
Best 73 from:
regards from:
CT4RK
Carlos Mourato
Sines

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