Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 17 - 23.06.2019, Forecast on 24.06 - 01.07.2019, Carrington Rotation 2218, 2219 (29.5.06; 29,5.06.2019) Earth out of ecliptic (-1.5 - 0.0) deg. (S25 - N25 is zone of geoeffectiveness) THE SUNSPOT-FORMING SOLAR ACTIVITY WAS AT THE VERY LOW LEVEL AND THE SOLAR DISC IS SPOTLESS (109 SPOTLESS DAYS IN CURRENT YEAR). ESTIMATED, MOST LIKELY WEEKLY AVERAGE VALUE OF THE RE- LATIVE SUNSPOT NUMBER IN THE INTERNATIONAL SYSTEM (old) FOR PERIOD W = 0 (Wn = 0). NEXT WEEK THE LEVEL OF SUNSPOT ACTIVITY WAS ON VERY LOW LE- VELS. THE VISIBLE SOLAR DISK EXPECTED SPOTLESS. LIKELY WEEKLY AVERAGE VALUE OF THE RELATIVE SUNSPOT NUMBER IN THE INTERNATI- ONAL SYSTEM (old) FOR THE NEXT WEEK IS W=010+20/-10. FLARE ACTIVITY WAS AT THE VERY LOW LEVEL. 2 SOLAR FILAMENT AND 4 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 1906 >1640 >0438 N42E30L152 6 1906 >1640 >0438 S36W36L158 37 -------------------------------------------------------------------- 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. Sch - CH area in % solar hemisphere near the central meridian on https://www.solarmonitor.org/; n/d - no data; R - solar rotations; EE-date of possible geomagnetic disturbance in the Earth's environment. G(0-5)-geoeffectivity in last solar rotation on the middle latitudes. A-active geomagnetic condition. THE CORONAL "PSEUDOHOLES", EXCLUDING THE POLAR CH, ON CONDITION OF ENVI- RONMENT DO NOT HAVE A SIGNIFICANT EFFECT. ---------------------------------------------------------------------- AFTER 03.06/1629 UT EARTH IS IN "+" SECTOR OF THE INTERPLANETARY MAG- NETIC FIELD. THE SIGN OF THE FIELD IS UNSTABLE AND OFTEN VARIABLE IN VERY SMALL VALUES. NEXT SECTOR BOUNDARY +/- THE EARTH MUST PASS 25.06. ----------------------------------------------------------------------- JUNE 17 18 19 20 21 22 23 JUNE Wus 000 000 000 000 000 000 000 F10.7 066 067 068 068 067 066 067 èbcg á6.3 á6.3 á6.3 á6.3 A6.2 A6.3 á6.5 GOES Sp 000 000 000 000 000 000 000 msh N IMF + + + + + + + DSCOVR Å>2 3.4E+6 3.6E+6 1.1E+6 3.6E+5 6.6E+5 5.7E+5 5.3å+5 GOES Ie>2 pfu Ap 3 3 3 7 6 4 4 nô Dst nô KIOTO Amsc 4 4 4 6 11 7 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 GOES-15 in (electrons/cm2.s.sr) for events > 1000 pfu. THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT NOT OB- SERVED. NEXT WEEK THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSYNCHRONOUS OR- BIT IS NOT EXPECTED. The GEOMAGNETIC CONDITION AT MIDDLE LATITUDES ALL DAYS REMAINED QUIET AND UNSETTLED. NEXT WEEK THE GEOMAGNETIC CONDITION IS MOST PROBABLE QUIET AND UNSET- TLED. 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