------------------------------------------------------------------- THE RELATIVE MONTHLY MEAN SUNSPOT NUMBER ON JUNE 2018 HAS MADE Wjune = 9.5 15.9(n) THAT GIVES FOR 107 MONTHS (2017, DECEMBER) OF DEVELOPMENT CURRENT 24 SOLAR CYCLE THE SMOOTHED MONTHLY MEAN SUNSPOT NUMBER W*dec. = 9.1 15.1 - in new system W*nov. = 9.2 15.4 - in new system On July 1, 2015 Centre in Brussels moved to a new system of calcu- lation 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 - X 2020; THE INTERNATIONAL DAILY VALUE OF RELATIVE SUNSPOT NUMBER FOR 2018, JUNE ACCORDING DATA OF 75 SOLAR OBSERVATORIES HAS MADE: 1.. 24 6.. 11 11.. 0m 16.. 14 21.. 50 26.. 14 2.. 22 7.. 10 12.. 12 17.. 14 22.. 41 27.. 14 3.. 13 8.. 0m 13.. 15 18.. 29 23.. 38 28.. 0m 4.. 0m 9.. 0m 14.. 15 19.. 34 24.. 19 29.. 0m 5.. 0m 10.. 0m 15.. 14 20.. 56M 25.. 17 30.. 0m THE MONTHLY MEAN OF OBSERVED RADIO FLUX OF THE 10 cm (2800 MHz ON JUNE 2018, AND SMOOTHES ON 2017, DECEMBER F10.7june = 72.5 F*10.7dec.= 74.4 THE MONTHLY MEAN OF GEOMAGNETIC Ap-index ON JUNE 2018 AND SMOOTHES ON 2017, DECEMBER Ap june = 6.5 Ap*dec. = 9.4 ------------------------------------------------------------------- Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 18 - 24.06.2018, Forecast on 25.06 - 02.07.2018, Carrington Rotation 2005 (12,7.06.2018) Earth out of ecliptic (-0.2 - +0.2) deg. (S25 - N25 is zone of geoeffectiveness) THE SUNSPOT-FORMING ACTIVITY OF THE SUN WAS ON THE VERY LOW LEVEL. AFTER 26.06 THE SUN WAS SPOTLESS (92 DAYS IN CURRENT YEAR). ESTIMATED, MOST LIKELY WEEKLY AVERAGE VALUE OF THE RE- LATIVE SUNSPOT NUMBER IN THE INTERNATIONAL SYSTEM (old) FOR PERIOD W=002+006/-002 (Wn= 004+009/-004). ON THE VISIBLE DISC OF THE SUN ONE SMALL SUNSPOT GROUPS HAVE BEEN OBSERVED. NEXT WEEK THE LEVEL OF SUNSPOT ACTIVITY WILL BE ON THE VERY LOW LEVEL. WITH HIGH PROBABILITY THE SOLAR DISC WILL BE SPOTLESS. LIKELY WEEKLY AVERAGE VALUE OF THE RELATIVE SUNSPOT NUMBER IN THE INTERNATIONAL SYSTEM (old) FOR THE NEXT WEEK IS W=010+10/-10. THE FLARE ACTIVITY WAS ON THE VERY LOW LEVEL. ONE EJECTA OF SO- LAR FILAMENT AND ONE CORONAL MASS EJECTIONS HAVE BEEN OBSERVED. ------------------------------------------------------------------ FLARES >M1 X-RAY CLASSES to tm te local. Class E(1-8A) AR RII/IV CME X-ray/Ïp J/m-2 DSF to te localization l × ÇÒÁÄ. Fl AR CME/to 29.06 >1646 >0530 N35E54L190 11 ------------------------------------------------------------------ NEXT WEEK THE FLARE ACTIVITY IS EXPECTED AT VERY LOW LEVELS. 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. CH - S08L168 S20L317 S40L189 S15L156 26.06 R3 SOHO, STEREO.. 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. ------------------------------------------------------------------------ AFTER 25.06/1100 UT EARTH IS IN "-" SECTOR OF INTERPLANETARY MAG- NETIC FIELD. NEXT SECTOR BOUNDARY -/+ THE EARTH MUST PASS 4.07. JUNE 25 26 27 28 29 30 01 JULY Wus 014 012 000 000 000 000 000 F10.7 073 071 070 070 069 069 068 èbcg á6.4 á3.8 á2.9 á2.2 á1.8 A1.5 á1.4 GOES Sp 040 020 000 000 000 000 000 msh N IMF +/- - - - - - - DSCOVR Å>2 5.0E+7 4.2E+7 1.3å+8 2.2E+8 2.6å+8 2.3å+8 2.5E+8 GOES Ie>2 2919 2438 3939 5571 4596 5197 5240 pfu Ap 12 20 7 5 4 4 2 nô Dst nô KIOTO Amsc 14 23 7 6 4 4 3 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 BEGIN- NING AT 24/1800 UT AND HAVE OBSERVED 24.06 - 1.07. NEXT WEEK THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT IS EXPECTED AFTER 02 - 09.07. THE GEOMAGNETIC CONDITION WAS ACTIVE 26.06 DUE TO EFFECTS ASSO- SHIATED WITH MINOR DISTURBANCES IN THE SOLAR WIND FIELD. IN OTHER DAYS GEOMAGNETIC CONDITION WAS QUITE. THE NEXT WEEK THE GEOMAGNETIC CONDITION IS EXPECTED TO BE PRIMA- RILY QUITE AND UNSETTLED. 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