Weekly Bulletin on Solar and Geomagnetic Activity
Highlights on 22 - 28.08.2011,
Forecast on 29.08 - 04.09.2011,
Carrington Rotation  2113, 2114 (30,22.07, 26,45.08.2011)

SOLAR SUNSPOT ACTIVITY OF THE SUN OF THE LAST PERIOD KEPT AT THE 
CONFIDENT AVERAGE LEVEL. ESTIMATED, RATING, WEEKLY AVERAGE OF SUNSPOT 
NUMBER IN THE INTERNATIONAL SYSTEM FOR THE PERIOD WAS MADE W=047+11/-9. 
ON THE VISIBLE DISK OF THE SUN CONSTANTLY THERE ARE FROM 4 TO 8 SUNSPOT 
GROUPS, ALL SMALL.

NEXT WEEK THE LEVEL OF SUNSPOT ACTIVITY IS EXPECTED TO BE THE AVERAGE. 
THE CALCULATED MOST LIKELY WEEKLY AVERAGE VALUE OF SUNSPOT NUMBER IN 
THE INTERNATIONAL SYSTEM FOR THE NEXT PERIOD W=050+10/-10.

FLARE ACTIVITY WAS ON A LOW LEVEL 22, 24 AND 26, IN OTHER DAYS AT VERY 
LOW LEVEL. SOHO CORONOGRAPH HAVE REGISTRED 46 CME FROM WHICH 2 WERE 
TYPE PARTIAL HALO II (AUGUST, 24, 25th).

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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
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NEXT WEEK FLARE ACTIVITY IS EXPECTED ON LOW AND VERY LOW LEVELS.
 
ON THE VISIBLE SOLAR DISK DURING THE LAST WEEK THE FOLLOWING CORONAL 
HOLES WERE OBSERVED :
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  sign N end   å end   S end   W end       EE    R   Observatories
CH -   N20L062 N11L060 N00L076 N08L080   23.08   1   KP,SDO,SOHO...
R - solar rotations; KP - KITT PEAK solar observatory;
EE - date of possible geomagnetic disturbation in the Earth's environment.
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AFTER 10.08/1730 UT THE EARTH IS IN - SECTOR OF THE INTERPLANETARY 
MAGNETIC FIELD. THE FOLLOWING SECTOR BOOUNDERY - /+ THE EARTH SHOULD 
PASS ON 02.09.

AUGUST  22     23     24     25     26     27     28     AUGUST
Wus    082    081    075    097    076    063    073
F10.7  108    104    104    104    105    104    101
èbcg  B2.5   B2.4   B2.5   B2.9   B2.7   B2.5   ÷2.2     GOES
Sp     380    370    220    340    330    310    200
Nnew           1                    3             1
IMF     -      -      -      -      -      -      -      ACE
Å>2 1.3å+7 5.2å+6 3.6å+6 5.9å+6 5.8E+6 4.6å+6 1.4å+6     GOES
Nm%                                                      THULE
Ap     7       9      6      4      3      4      6      áÒ
Dst                                                      KIOTO
Amsc   18     18      19     19     19     17     18     IZMIRAN
Data of IZMIRAN is possibly overestimated.
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THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT VERY HIGH 
LEVEL OF FLUX WAS NOT OBSERVED.

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

ALL PERIOD GEOMAGNETIC CONDITIONS WERE UNSETTLED AND QUIET.

NEXT WEEK IT IS MOST PROBABLE QUIET AND UNSETTLED GEOMAGNETIC CONDITIONS.

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
WDC STP MOSCOW