------------------------------------------------------------------- THE RELATIVE MONTHLY MEAN SUNSPOT NUMBER ON OCTOBER 2017 HAS MADE Woct. = 07.9 13.2(n) THAT GIVES FOR 98 MONTHS (2017, APRIL) DEVELOPMENT CURRENT 24 CYCLE OF SOLAR ACTIVITY THE SMOOTHED MONTHLY MEAN SUNSPOT NUMBER W*апр. = 14.9; 24.9 - в новой системе W*март = 15.5; 25.8 - в новой системе 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, OCTOBER ACCORDING DATA OF 81 SOLAR OBSERVATORIES HAS MADE: 1.. 36M 6.. 23 11.. 0m 16.. 0m 21.. 11 26.. 23 31.. 11 2.. 24 7.. 11 12.. 0m 17.. 0m 22.. 11 27.. 23 3.. 25 8.. 11 13.. 0m 18.. 0m 23.. 23 28.. 24 4.. 27 9.. 0m 14.. 11 19.. 0m 24.. 23 29.. 23 5.. 26 10.. 0m 15.. 0m 20.. 0m 25.. 23 30.. 21 THE MONTHLY MEAN OF OBSERVED RADIO FLUX OF THE 10 cm (2800 MHz ON 2017, OCTOBER, AND SMOOTHES ON 2017, APRIL F10.7oct. = 92.0 F*10.7apr.= 78.6 THE MONTHLY MEAN OF GEOMAGNETIC Ap-index ON 2017, OCTOBER, AND SMOOTHES ON 2016, APRIL Ap oct. = 9.90 Ap*apr. = 11.5 ------------------------------------------------------------------- Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 30.10 - 05.111.2017, Forecast on 06 - 13.11.2017, Carrington Rotation 2196, 2197 (10,01.10; 03,61.12.2017) Earth above the ecliptic (4.9 - 4,3) deg. (S25 - N30 is geoeffectiveness zone) SUNSPOT-FORMING ACTIVITY WAS ON THE LOW AND VERY LOW LEVELS. SIN- CE NOVEMBER 1 THE SUN WAS SPOTLESS (72 SPOTLESS DAYS IN CURRENT YEAR). THE ESTIMATED, MOST LIKELY WEEKLY AVERAGE VALUE OF THE RELATIVE SUNSPOT NUMBER IN THE INTERNATIONAL SYSTEM (old) FOR THE PERIOD W=003+10/-3 (Wn=05+16/-5). ON THE VISIBLE SOLAR DISK TWO SMALL AND QUITE SUNSPOT GROUP HAVE BEEN OBSERVED. NEXT WEEK LEVEL OF SUNSPOT-FORMING ACTIVITY WILL REMAIN AT THE VERY LOW LEVELS. WITH HIGH PROBABILITY THE VISIBLE DISK WILL BE SPOTLESS. MOST LIKELY WEEKLY AVERAGE VALUE OF THE RELATIVE SUN- SPOT NUMBER IN THE INTERNATIONAL SYSTEM (old) FOR THE NEXT WEEK IS W= 010+10/-10. THE FLARE ACTIVITY WAS AT THE VERY LOW LEVEL. THERE WAS TWO SO- LAR FILAMENT EJECTIONS OCCURRENCES ON THIS PERIOD. ACCORDING TO THE DATA FROM SOHO AND STEREO CORONOGRAPHS THREE CME HAVE BEEN OBSERVED. ---------------------------------------------------------------------- FLARES to tm te local. Class E(1-8A) AR RII/IV CME X-ray/оp J/m-2 DSF to te координаты l в град. Fl AО CME/to 02.11 >0940 >2223 N52E27L014 11 03.11 0647 0804 N40E11L019 12 --------------------------------------------------------------------- NEXT WEEK THE FLARE ACTIVITY IS EXPECTED AT 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. CH - S02L101 S12L076 S45L076 S10L106 28900 01.11 5 G0 SDO, SOHO... CH + N50L342 N40L327 N20L005 N22L152 43000 06.11 4 G1 SDO, SOHO... CH* + N05L015 N00L000 S15L015 S02L020 08.11 1 SDO, SOHO... * CH was formed 4.11 in the center of a visible disk; 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. ------------------------------------------------------------------------ 31.10/07 UT THE EARTH IS IN "-" SECTOR OF THE INTERPLANETARY MAGNE- TIC FIELD. NEXT SECTOR BOUNDARY +/- EARTH SHOULD BE PASSED 0N 06.11. OCTOBER 30 31 01 02 03 04 05 NOVEMBER Wus 022 011 000 000 000 000 000 F10.7 076 075 073 074 073 072 071 Хbcg А5.7 А5.5 A5.3 A5.2 A5.4 A5.0 A4.2 GOES Sp 010 000 000 000 000 000 000 msh N IMF + +/- - - ~/- ~/- -/+ DSCOVR е>2 2.0+8 1.7Е+8 6.9E+7 4.2Е+6 1.6Е+6 1.8Е+6 2.7Е+6 GOES Ie>2 3668 3054 2866 337 pfu Ap 1 2 3 8 9 3 2 nТ Dst nТ KIOTO Amsc 3 3 4 6 10 3 1 nТ IZMIRAN --------------------------------------------------------------------- е>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 HAS BE- GIN 24.10/1245 UT AND 24.10-1.11 HAVE BEEN OBSERVED. NEXT WEEK THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSYNCHRONOUS OR- BIT IS EXPECTED AFTER 08.11. THE GEOMAGNETIC CONDITION WAS UNSETTLED AND QUIET ALL DAYS. NEXT WEEK THE GEOMAGNETIC CONDITION WILL BE UNSETTLED AND QUIET ALL DAYS. 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