------------------------------------------------------------------- THE RELATIVE MONTHLY MEAN SUNSPOT NUMBER ON JUNE 2017 HAS MADE Wjune = 11.6 19.4(n) THAT GIVES FOR 95 MONTHS (2016, DECEMBER) DEVELOPMENT CURRENT 24 CYCLE OF SOLAR ACTIVITY THE SMOOTHED MONTHLY MEAN SUNSPOT NUMBER W*dec. = 17.1; 28.5 - on new system W*nov. = 17.4; 29.9 - on new system On July 1, 2015 Centre in Brussels moved to a new system of cal- culation the relative number of sunspots and practically all of the values were replaced throughout the numbered series of Wolf numbers (see link). While there is addictive, I recalculated (0.6) to the old system, but only W*, and present below the new values for the minimum and maximum of 24 cycles SA. THE BEGINNING OF 24 SOLAR CYCLE - I 2009 with W*=1.8; (2.2) THE TIME OF THE CURRENT CYCLE MAXIMUM - IV 2014, - Wmax = 82;(116.4) THE END OF 24 SOLAR CYCLE (THE POINT OF MINIMUM) - IV - VI 2020; THE INTERNATIONAL DAILY VALUE OF RELATIVE SUNSPOT NUMBER FOR 2017, JUNE ACCORDING DATA OF 79 SOLAR OBSERVATORIES HAS MADE: 1.. 15 6.. 24 11.. 0m 16.. 30 21.. 35 26.. 21 2.. 23 7.. 14 12.. 0m 17.. 30 22.. 24 27.. 19 3.. 24 8.. 14 13.. 11 18.. 29 23.. 23 28.. 17 4.. 26 9.. 0m 14.. 11 19.. 27 24.. 26 29.. 12 5.. 36M 10.. 0m 15.. 31 20.. 32 25.. 17 30.. 11 THE MONTHLY MEAN OF OBSERVED RADIO FLUX OF THE 10 cm (2800 MHz ON 2017, JUNE, AND SMOOTHES ON 2016, DECEMBER F10.7june = 74.8 F*10.7 dec.= 80.0 THE MONTHLY MEAN OF GEOMAGNETIC Ap-index ON 2017, JUNE, AND SMOOTHES ON 2016, DECEMBER Ap june = 5.8 Ap*dec. = 11.4 ------------------------------------------------------------------- Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 26.06 - 02.07.2017, Forecast on 03 - 10.07.2017, Carrington Rotation 2192 (23,05.06.2017) Earth above the ecliptic (-0,2; 0,7) deg. (S35 - N35 is geoeffectiveness zone) SUNSPOT-FORMING ACTIVITY WAS ON THE LOW LEVEL 26.06 AND VERY LOW IN OTHER DAYS. THE ESTIMATED, MOST LIKELY WEEKLY AVERAGE VALUE OF THE RELATIVE SUNSPOT NUMBER IN THE INTERNATIONAL SYSTEM (old) FOR THE PERIOD IS W=008+2/-1 (Wn=013+3/-5). ON THE VISIBLE DISC OF THE SUN 1 SMALL SUNSPOT GROUP HAVE BEEN OBSERVED. NEXT WEEK SUNSPOT-FORMING ACTIVITY IS EXPECTED AT THE LOW AND VE- RY LOW LEVELS. THE ESTIMATED, MOST LIKELY WEEKLY AVERAGE VALUE OF THE RELATIVE SUNSPOT NUMBER IN THE INTERNATIONAL SYSTEM (old) FOR THE NEXT WEEK IS W = 10+10/-10. FLARE ACTIVITY WAS AT THE VERY LOW LEVEL. NO SOLAR FILAMENT EJEC- TIONS OCCURRENCES THROUGH THE PERIOD. ACCORDING TO THE DATA FROM SOHO AND STEREO CORONOGRAPHS, > 3 CMEs, ONE WAS OF TYPE II (angu- lar width is 90 - 180 deg.) HAVE BEEN OBSERVED. ---------------------------------------------------------------------- FLARES to tm te local. Class E(1-8A) AR RII/IV CME X-ray/Ïp J/m-2 DSF to te ËÏÏÒÄÉÎÁÔÙ l × ÇÒÁÄ. Fl Aï CME/to --------------------------------------------------------------------- NEXT WEEK FLARE ACTIVITY IS EXPECTED TO BEAT THE VERY LOW LEVEL. ON THE VISIBLE SOLAR DISK THE FOLLOWING CORONAL HOLES WERE OBSERVED: --------------------------------------------------------------------- sign N end E end S end W end Sch EE R G Space Obser. óî - N03L240 S10L227 S30L240 S05L265 03.06 1 SDO, SOHO... Sch - CH Square in Mm**2 (in square megameters) near the central meri- dian on http://sdowww.lmsal.com/suntoday/; n/d - no data; R - solar rotations; EE-date of possible geomag. disturbance in the Earth's environment. G(0-5)-geoeffectivity in last solar rotation on the middle latitudes. A-active geomagnetic condition. ------------------------------------------------------------------------ 23.06/0630 UT THE EARTH IS IN "+" SECTOR OF THE INTERPLANETARY MAGNETIC FIELD. NEXT SECTOR BOUNDARY +/- EARTH SHOULD BE PASSED 0N 5.07. JUNE 26 27 28 29 30 01 02 JULY Wus 019 017 013 012 011 011 011 F10.7 074 074 072 072 072 071 071 èbcg A5.2 A5.3 A5.2 á4.3 A3.7 A3.4 A3.5 GOES Sp 090 100 060 050 050 020 020 msh N IMF + + + + + + + DSCOVR Å>2 7.5å+6 2.0E+7 3.3E+7 1.4å+7 1.3å+7 2.7å+6 1.5å+6 GOES Ie>2 227 449 167 548 305 204 pfu Ap 7 4 4 5 4 12 21 nô Dst nô KIOTO Amsc 9 5 5 5 5 8 22 nô IZMIRAN ------------------------------------------------------------------ Å>2 - Daily Electron Fluency e/(cm2-ster-day) with E>2 MeV. Ie>2 - the maximum intensity of electron flux in geostationary or- bits in days according to GOES15 in (electrons/cm2.s.sr) for events > 1000 pfu. THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT WAS NOT OBSERVED. THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSTATIONARY ORBIT OF VERY HIGH LEVEL IS NOT EXPECTED. GEOMAGNETIC CONDITION WAS QUIET AND UNSETTLED ALL DAYS EXCEPT 2.07 WHEN AFTER ARRIVAL OF THE INTERPLANETARY SHOCK (SI-01/1712 UT) IN THE MIDDLE OF THE DAY, THE PLANETARY SUBSTORM OF INTENSITY (G1) AND DURATION < 6 h. ACCORDING TO THE CENTER IN BOULDER DATA AND < 9 h. ACCORDING IZMIRAN DATA IS NOTED. ON THE NEXT WEEK THE QUIET AND UNSETTLED GEOMAGNETIC CONDITION BE EX- PECTED. 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 V. Ishkov