Weekly Bulletin on Solar and Geomagnetic Activity
Highlights on 05 - 11.09.2011,
Forecast on 12 - 19.09.2011,
Carrington Rotation  2114 (26,45.08.2011)

SOLAR SUNSPOT ACTIVITY OF THE SUN OF THE LAST PERIOD KEPT AT THE 
AVERAGE LEVEL. ESTIMATED, RATING, WEEKLY AVERAGE OF SUNSPOT NUMBER 
IN THE INTERNATIONAL SYSTEM FOR THE PERIOD WAS MADE W=085+19/-11. 
ON THE VISIBLE DISK OF THE SUN CONSTANTLY THERE IS FROM 6 TO 3 SUN-
SPOT GROUPS, ONE OF WHICH, QUIET, THE AVERAGE SIZES.

NEXT WEEK THE LEVEL OF SUNSPOT ACTIVITY IS EXPECTED TO BE THE HIGH 
AND AVERAGE. THE CALCULATED MOST LIKELY WEEKLY AVERAGE VALUE OF SUN-
SPOT NUMBER IN THE INTERNATIONAL SYSTEM FOR THE NEXT PERIOD W=080+
10/-10.

FLARE ACTIVITY WAS ON A LOW LEVEL. SOHO CORONOGRAPH HAVE REGISTRED 40 
CME.

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      to   tm    te  localization  Class   å(1-8A)  áR   RII/IV  CME
                                  X-ray opt.  J/m-2             
         to      te  central part localization l × ÇÒÁÄ. Fl AR    CME
DSF 13/~2320          ~N23W03L129    ~10       SF  11289  CME/0000
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NEXT WEEK FLARE ACTIVITY IS EXPECTED ON AVERAGE AND LOW LEVELS.
 
ON THE VISIBLE SOLAR DISK DURING THE LAST WEEK THE FOLLOWING CORONAL 
HOLES WERE OBSERVED :
--------------------------------------------------------------------------
  sign N end   å end   S end   W end       EE    R   Observatories
R - solar rotations; KP - KITT PEAK solar observatory;
EE - date of possible geomagnetic disturbation in the Earth's environment.
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AFTER 9.09/21 UT THE EARTH IS IN - SECTOR OF THE INTERPLANETARY MAGNETIC 
FIELD. THE FOLLOWING SECTOR BOOUNDERY - /+ THE EARTH SHOULD PASS ON 30.09.
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SEPTEMBER  12     13     14     15     16     17     18  SEPTEMBER
Wus       097    118    144    167    173    138    144
F10.7     124    129    143    141    143    145    150
èbcg     B6.0   B5.3   B5.6   B6.0   B8.0   B8.2   ÷9.2  GOES
Sp        490    660    890    810    990    910   1000
Nnew       3      1      2                             
IMF        -      -      -      -      -      -      -   ACE
Å>2    8.7å+7 1.0å+8 1.9å+8 3.2å+8 3.2E+8 6.0å+7 6.6å+6  GOES
Nm%                                                      THULE
Ap         32     16     4      5      2      32     5   áÒ
Dst                                                      KIOTO
Amsc       29     14     7      6      6      29     6   IZMIRAN
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THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT VERY HIGH LEVEL 
OF FLUX WAS OBSERVED SEPTEMBER, 12 - 17 .

NEXT WEEK THE GREATER THAN 2 MeV ELECTRON FLUX AT HIGH LEVEL IS NOT EXPECTED. 

GEOMAGNETIC CONDITIONS WERE ON LEVEL MINOR 12-13 SEPTEMBER (G1, Ams=28, ÄÌÉÔ.
= 33 Þ.) ACCORDING IZMIRAN DATA, ACCORDING TO GEOMAGNETIC OBSERVATORIES OF 
THE WESTERN HEMISPHERE DATA THE MAGNETIC STORM WAS MODERATE (G1, Ams=25, ÄÌÉÔ.
=30 Þ.) IN THE END OF DAY AT SEPTEMBER, 17th AFTER ARRIVAL TO THE EARTH DISTUR-
BATIONS FROM SOLAR FILAMENT EJECTION THE MINOR MAGNETIC STORM (G1, Ams=31, dur.
=15 h.) ACCORDING DATA OF éúíéòáî AND MODERATE MAGHETIC STORM (G2, Ams=54, dur. 
=12 h.) ACCORDING TO GEOMAGNETIC OBSERVATORIES OF THE WESTERN HEMISPHERES DATA.

NEXT WEEK GEOMAGNETIC CONDITIONS ARE MOST PROBABLE QUIET AND UNSETTLED.

HIGHLIGHT AND FORECAST COMPOSED FROM DATA OF NOAA SEC
http://www.sec.noaa.gov,
OF THE SOLAR INFLUENCES DATA ANALYSIS CENTER – SIDC, BELGIUM
http://sidc.oma.be/index.php3, 
OF THE IZMIRAN, RUSSIA  http://www.izmiran.ru