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HAPPY NEW YEAR FOR ALL USERS

Weekly Bulletin on Solar and Geomagnetic Activity
Highlights on 24 - 30.12.2012,
Forecast on 31.12.2012 -05.01.2013,
Carrington Rotations 2131, 2132 (02,17; 29,50.12.2012)

SUNSPOT-FORMING ACTIVITY OF THE SUN AT THE LAST TWO DAYS WERE ON THE
LOW AND OTHER DAYS - THE AVERAGE LEVELS. WEEKLY, THE AVERAGE OF SUN-
SPOT NUMBER IN THE INTERNATIONAL SYSTEM FOR THE PERIOD WAS MADE
W=035+14/-12. ON THE VISIBLE SOLAR DISK CONSTANTLY THERE WERE PRESENT
5 - 2 SMALL SUNSPOTS GROUPS.

NEXT WEEK THE LEVEL OF SUNSPOT ACTIVITY IS EXPECTED TO BE THE LOW
AND AVERAGE. THE CALCULATED MOST LIKELY WEEKLY AVERAGE VALUE OF SUN-
SPOT NUMBER IN THE INTERNATIONAL SYSTEM FOR THE NEXT WEEK IS
EXPECTED W = 040+20/-10.

FLARE ACTIVITY WAS AT A LOW LEVEL ALL DAYS, EXCEPT DECEMBER 28 AND
30. BY SOHO AND STEREO CORONOGRAPHS DATA THERE WERE OBSERVED 47 CME
TWO OF WHICH WAS THE "PARTIAL HALO II".

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FLARES to tm te c/p local. Class E(1-8A) AR RII/IV CME
X / opt. J/m-2
DSF to te c/p local. l in deg. Fl AR CME
25.12 >1418 <0959 S32W06L049 08
27.12 2309 N08E20L357 10
c/p local. - central part localization
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ON THE FOLLOWING WEEK FLARE ACTIVITY IS EXPECTED ON THE LOW AND THE
AVERAGE LEVELS.

ON THE VISIBLE SOLAR DISK THE FOLLOWING CORONAL HOLES WERE OBSERVED:
---------------------------------------------------------------------
sign N end е end S end W end EE R Observatories
CH - N12L070 S08L067 S09L070 S01L087 25.12 4 SDO, SOHO..
CH + S42L050 S50L040 S52L040 S48L053 27.12 1 SDO, SOHO..
CH + s08L004 S09l002 S12L010 S09L011 31.12 1 SDO, SOHO..
R - solar rotations; KP - KITT PEAK solar observatory;
EE-date of possible geomag. disturbation in the Earth's environment.
----------------------------------------------------------------------

AFTER 23.12/1330 UT THE EARTH IS IN "-" SECTOR INTERPLANETARY MAGNETIC
FIELDS. THE FOLLOWING SECTOR BOUNDARY -/+ EARTH SHOULD PASS AT 06.01.

DECEMBER 24 25 26 27 28 29 30 DECEMBER
Wus 053 058 082 078 054 049 037
F10.7 113 113 110 107 106 104 107
Хbcg В2.1 В2.9 В3.0 B2.3 В2.0 В2.0 B2.2 wt/m-2 GOES
Sp 330 320 210 300 570 240 220 м.д.п.
N 1
IMF - - - - - -/+/- - АСЕ
е>2 5.6Е+6 2.9E+6 1.9E+6 2.0Е+6 2.1Е+6 1.0Е+6 1.1E+6 GOES
Ie>2 GOES
Nm% THULE
Ap 2 2 2 1 0 2 4 nТ Ар
Dst КIOTO
Amsc 7 8 6 7 8 8 9 nТ IZMIRAN
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е>2 - a fluence in (electrons/cm2-day-sr) with E>2 MeV.
Ie>2 - the maximum intensity of a flux of electrons in geostationary
orbits in days according to GOES 15 in (electrons/cm2-s-sr) for events
> 1000 p.f.u.

THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSTATIONARY ORBIT VERY HIGH
LEVEL WAS NOT OBSERVED.

THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSTATIONARY ORBIT VERY HIGH
LEVEL IS NOT EXPECTED.

THE GEOMAGNETIC CONDITIONS REMAINED QUIET AND UNSETTLED.

NEXT WEEK THE GEOMAGNETIC CONDITION IS EXPECTED UNSETTLED AND QUIET.

HIGHLIGHT AND FORECAST COMPOSED FROM DATA
OF NOAA SWPC 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