Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 11 - 17.01.2016, Forecast on 18 - 25.01.2016, Carrington Rotations 2172, 2173 (25,50.12.2015; 21,83.05.2016) SUNSPOT-FORMING ACTIVITY WAS AT THE LOW LEVEL 12-13.01 AND ON THE MIDDLE LEVEL IN OTHER DAYS. ESTIMATED, WEEKLY AVERAGE VALUE OF THE RELATIVE SUNSPOT NUMBER IN THE INTERNATIONAL SYSTEM (old) WAS W =22+7/-6 (Wn = 35+10/-10). ON THE VISIBLE DISK OF THE SUN 2 - 3 QUIET AND SMALL SUNSPOT GROUPS, TWO OF WHICH IS THE LATITUDE COMP- LEX OF ACTIVE REGION IN THE NORTHERN HEMISPHERE, WERE CONSTANTLY OBSERVED. THE MIDDLE AND THE LOW LEVELS OF THE SUNSPOT-FORMING ACTIVITY IS EXPECTED ON THE NEXT WEEK. AS ESTIMATED, THE MOST LIKELY WEEKLY AVERAGE VALUE OF THE RELATIVE SUNSPOT NUMBER IN THE INTERNATIONAL SYSTEM FOR THE NEXT WEEK IS W = 030+15/-10. FLARE ACTIVITY 12 AND 13.01 WAS AT THE LOW LEVEL, AND AT THE VERY LOW LEVELS IN OTHER DAYS. ONE EJECTION OF SOLAR FILAMENTS HAVE BE- EN OBSERVED IN THIS PERIOD. ACCORDING TO SOHO AND STEREO CORONO- GRAPHS DATA >28 CMEs, ONE OF THEM WAS "PARTIAL HALO II" TYPE HAVE BEEN OBSERVED. --------------------------------------------------------------------- FLARES to tm te c/p local.Class E(1-8A) AR RII/IV CME X-ray/Ïp J/m-2 DSF to te Localization l × ÇÒÁÄ. Fl Aï CME 14.01 1803 2048 S25W08L104 17 óíå/2312 ---------------------------------------------------------------------- NEXT WEEK FLARE ACTIVITY WILL BE ON THE LOW AND VERY LOW LEVELS. ON THE VISIBLE SOLAR DISK THE FOLLOWING CORONAL HOLES WERE OBSERVED: ------------------------------------------------------------------------ sign N end Å end S end W end Sch EE R G Observatories CH - N28L141 N25L139 N17L162 N18L164 9600 13.01 4 G0 SDO, SOHO.. óî - S39L046 S45L031 Ps S40L058 >138900 21.01 SDO, SOHO.. Sch - CH Square in Mm*2 (in square megameters) near the central meri- dian on http://sdowww.lmsal.com/suntoday/; R - solar rotations; EE-date of possible geomag. disturbance in the Earth's environment. G(0-5) - geoeffectivity in last solar rotation. A-active geomagnetic condition. ------------------------------------------------------------------------ FROM 16.01/11 UT THE EARTH IS IN "+" SECTOR OF THE INTERPLANETARY MAGNE- TIC FIELD. THE FOLLOWING SECTOR BOUNDARY -/+ THE EARTH HAS TO PASS 19.01. JANUARY 04 05 06 07 08 09 10 JANUARY Wus 060 029 038 057 080 084 073 F10.7 095 095 100 103 109 107 109 èbcg ÷2.2 ÷2.2 B3.0 B2.8 ÷2.4 B2.2 B2.4 GOES Sp 160 100 160 300 340 390 270 msh N 1 1 1 2 1 IMF + + + + + + + áóå Å>2 2.7å+8 2.3å+8 6.5å+7 1.7å+7 2.1E+8 1.8E+8 1.0å+8 GOES Ie>2 7407 6152 2110 5126 5724 3899 2874 pfu GOES Ap 5 6 21 16 8 5 6 nT BOULDER Dst nô KIOTO Amsc 7 8 24 14 10 5 7 nT IZMIRAN -------------------------------------------------------------------- Å>2 - Daily Electron Fluency e/(cm2-ster-day) with E>2 MeV. Ie>2 - the maximum intensity of electron flux in geostationary orbits in days according to GOES 15 in (electrons/cm2-s-sr) for events > 1000 pfu. THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT WAS BE- GINNING AT 1.01/2035 UT AND WAS OBSERVED 1- 10.01. NEXT FLUX WAS BE- GINNING AT 13.01/1420 UT AND WAS OBSERVED 13 - 17.01. THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSTATIONARY ORBIT OF VERY HIGH LEVEL IS EXPECTED 18 - 19.01. THE GEOMAGNETIC CONDITION WAS UNSETTLED AND QUIET. NEXT WEEK THE ACTIVE GEOMAGNETIC CONDITIONS CAN BE EXPECTED UNSET- TLED AND QUITE. HIGHLIGHT AND FORECAST COMPOSED FROM DATA: NOAA SWPC, BOULDER, USA http://www.swpc.noaa.gov, THE SOLAR INFLUENCES DATA ANALYSIS CENTRE, SIDC, BRUSSELS, BELGIUM http://sidc.oma.be/index.php3, THE IZMIRAN, MOSCOW, TROITSK, RUSSIA http://www.izmiran.ru