------------------------------------------------------------------- THE RELATIVE MONTHLY MEAN SUNSPOT NUMBER ON MAY 2018 HAS MADE Wmay. = 8.0 13.2(n) THAT GIVES FOR 106 MONTHS (2017, NOVEMBER) OF DEVELOPMENT CURRENT 24 SOLAR CYCLE THE SMOOTHED MONTHLY MEAN SUNSPOT NUMBER W*nov. = 9.2 15.4 - in new system W*oct. = 10.0 16.7 - 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, MAY ACCORDING DATA OF 70 SOLAR OBSERVATORIES HAS MADE: 1.. 0m 6.. 15 11.. 11 16.. 0m 21.. 11 26.. 27 31.. 22 2.. 0m 7.. 14 12.. 13 17.. 0m 22.. 13 27.. 36M 3.. 0m 8.. 20 13.. 12 18.. 0m 23.. 28 28.. 19 4.. 13 9.. 23 14.. 0m 19.. 0m 24.. 35 29.. 23 5.. 14 10.. 11 15.. 0m 20.. 0m 25.. 30 30.. 20 THE MONTHLY MEAN OF OBSERVED RADIO FLUX OF THE 10 cm (2800 MHz ON MAY 2018, AND SMOOTHES ON 2017, NOVEMBER F10.7may = 70.8 F*10.7nov.= 74.6 THE MONTHLY MEAN OF GEOMAGNETIC Ap-index ON MAY 2018 AND SMOOTHES ON 2017, NOVEMBER Ap may. = 7.16 Ap*nov. = 9.5 ------------------------------------------------------------------- Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 02 - 10.06.2018, Forecast on 11 - 18.06.2018, Carrington Rotation 2004 (16,45.05.2018) Earth out of ecliptic (-0.5 - -0.3) deg. (S25 - N25 is zone of geoeffectiveness) THE SUNSPOT-FORMING ACTIVITY OF THE SUN WAS ON LOW AND VERY LOW LEVELS. THE ESTIMATED, MOST LIKELY WEEKLY AVERAGE VALUE OF THE RELATIVE SUNSPOT NUMBER IN THE INTERNATIONAL SYSTEM (old) FOR THE PERIOD W = 004+008/-004 (Wn=006 +013/-006). ON THE VISIBLE DISC OF THE SUN, 1 SMALL SUNSPOT GROUPS. NEXT WEEK THE LEVEL OF SUNSPOT ACTIVITY WILL BE ON THE VERY AND LOW LEVELS. 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 LOW LEVEL 06.05 AND VERY LOW IN OTHER DAYS. THREE SOLAR FILAMENT EJECTIONS AND 1 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 06.06 >1316 >0431 N27E25L045 9 09.06 0709 0744 S49W23L353 6 09.06 >1536 >0517 S54E21L051 6 --------------------------------------------------------------------- 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 - S02L025 S20L060 S30L040 S04L020 12.06 R6 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 30.05/1800 UT EARTH IS IN "-" SECTOR OF INTERPLANETARY MAG- NETIC FIELD. NEXT SECTOR BOUNDARY -/+ THE EARTH MUST PASS 21.06. JUNE 02 03 04 05 06 07 08 09 10 JUNE Wus 020 016 011 000 000 000 000 000 000 F10.7 074 076 071 071 071 069 068 067 070 èbcg á5.0 á4.4 á4.1 á4.2 á2.8 2 7.4E+8 7.9E+8 9.1E+8 6.9å+8 6.7å+8 8.4E+7 7.3E+7 7.8E+7 7.1E+8 GOES Ie>2 28659 26889 22123 579 19491 6304 2574 2016 1939 pfu Ap 17 9 5 6 7 6 4 4 3 nô Dst nô KIOTO Amsc 14 9 5 6 7 7 5 4 4 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 01/1610 UT AND HAVE OBSERVED 01 - 10.06. NEXT WEEK THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT IS EXPECTED 11 - 13.06. MINOR MAGNETIC STORM (G1, Ams= 31, dur.= 15 h.) ACCORDING DATA OF BOULDER CENTER AND (G0, Ams= 27, dur.=15 h.) ACCORDING IZMIRAN DA- TA WAS REGISTERED 1-2 JUNE, AS RESULT PASSING OF HIGH SPEED STREAM FROM TRANS-EQUATORIAL CORONAL HOLE. IN OTHER DAYS THE GEOMAGNETIC CONDITION WAS QUITE AND UNSETTLED. 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