Weekly Bulletin on Solar and Geomagnetic Activity
Highlights on 19 - 25.03.2012,
Forecast on 26.03 - 01.04.2012,
Carrington Rotations 2121, 2122 (04,62.03; 31,93.03.2012)

SOLAR SUNSPOT ACTIVITY OF THE LAST PERIOD KEPT AT THE AVERAGE LEVEL. 
ESTIMATED, RATING, WEEKLY AVERAGE OF SUNSPOT NUMBER  IN THE INTERNA-
TIONAL SYSTEM FOR THE PERIOD WAS MADE W = 043+9/-8.  ON THE VISIBLE 
DISK OF THE SUN CONSTANTLY THERE ARE FROM 4 TO 6 SMALL QUITE SUNSPOT 
GROUPS.

NEXT WEEK THE LEVEL OF SUNSPOT ACTIVITY IS EXPECTED TO BE 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 AVERAGE LEVEL AT 23.03 WHEN IN THE SMALL SUN-
SPOT GROUP THAT CAME OUT FROM EAST LIMB OCCURENCED AVERAGE SOLAR FLARE,
IN OTHER DAYS FLARE ACTIVITY WAS ON A LOW LEVEL. SOHO CORONOGRAPH HAVE 
REGISTRED 54 CORONAL MASS EJECTION WHICH THEM 5 WERE "PARTIAL HALO II"
AND ONE - III.
 
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      to   tm    te  localization  Class   å(1-8A)  áR   RII/IV  CME
                                  X-ray opt.  J/m-2
23.03 1934 1940 >1944 S23E87L029 M1.0/   3.0E-3 11445

DSF     to     te  central part l × ÇÒÁÄ. Fl AR    CME
20.03  1211   1414  N33W30L179       8
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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 :
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  sign N end   å end   S end   W end      EE    R   Observatories
CH +  N55L114 N48L112 N38L122 N40L142   25.03   1   KP, SDO, SOHO....
CH +  S35L062 S46L051    Ps   S48L075   29.03   3   KP, SDO, SOHO....
CH -  S18L048 S20L043 S24L048 S21L052   30.30   3   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 23.03/91 UT THE EARTH IS IN + SECTOR OF THE INTERPLANETARY MAGNE-
TIC FIELD. THE FOLLOWING SECTOR BOUNDERY + /- THE EARTH SHOULD PASS ON 
29.03.

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MARCH     19     20     21     22     23     24     25    MARCH
Wus      058    074    062    086    074    065    084
F10.7    102    100    100    102    105    103    101
èbcg    ÷1.8   B2.0   B2.3     -    B3.3   B1.9   ÷2.2    GOES
Sp       320    400    240    180    180    200    390
Nnew             2      1      3      2             1 
IMF       -      -      -      -     -/+     +      +      ACE
Å>2   4.9å+8 9.3å+8 1.2å+9 7.4å+8 3.4E+6 1.3å+7 1.2å+7     GOES
Nm%                                                        THULE
Ap        8      4      4      6      6      4      4      áÒ
Dst                                                        ëIïôï
Amsc      11     8      8      11     8      12     8      IZMIRAN
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THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT VERY HIGH 
LEVEL OF FLUX WAS OBSERVED 19 - 22.03.

NEXT WEEK THE GREATER THAN 2 MeV ELECTRON FLUX AT HIGH LEVEL IS NOT EX-
PECTED. 

GEOMAGNETIC CONDITIONS WERE QUITE AND UNSETTLED ALL PERIOD.

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