Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 22 - 28.06.2020, Forecast on 29.06 - 05.07.2020, Carrington Rotation 2232 (21,88.05.2020) Earth out of ecliptic (-1.1 - -0.5) deg. (S25 - N25 is zone of geoeffectiveness) THE SUNSPOT-FORMING ACTIVITY REMAINED ON VERY LOW LEVEL. THE SUN's VISIBLE DISK WAS SPOTLESS ALL DAYS (135 SPOTLESS DAYS AT 2020). ES- TIMATED, MOST LIKELY WEEKLY AVERAGE VALUE OF THE RELATIVE SUNSPOT NUMBER IN THE INTERNATIONAL SYSTEM (old) FOR PERIOD W =0 (Wn=0). 26. 06 NEAR THE WESTERN LIMB, A SMALL ACTIVE REGION FORMED WITH THE OR- DER OF POLARITY OF THE NEXT CYCLE IN WHICH A LITTLE SUNSPOT IS FOR- MED. 06.06. SUNSPOT DISAPPEARED BEHIND THE WESTERN LIMB, NOT GETTING NUMBERS IN THE SUN NOAA SERVICE. NEXT WEEK THE LEVEL OF SUNSPOT ACTIVITY WAS ON VERY LOW LEVEL. LIKE- LY WEEKLY AVERAGE VALUE OF THE RELATIVE SUNSPOT NUMBER IN THE INTER- NATIONAL SYSTEM (old) FOR NEXT WEEK IS W=010+10/-10. FLARE ACTIVITY WAS AT VERY LOW LEVEL. 1 SOLAR FLARE OF VERY LOW X-RAY CLASS "A" AND ONE CORONAL MASS EJECTION 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 deg. Fl AR CME/to -------------------------------------------------------------------- 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 Spacecraft * - low geoeffectivity, the substorms with duration <6 h. only. 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. ---------------------------------------------------------------------- FROM 26.06/1230 UT, THE EARTH IS IN THE "-" SECTOR OF THE INTERPLANE- TARY MAGNETIC FIELD, BUT IN PERIOD AFTER 23/13 UT "+" SECTOR HAVE BEEN OBSERVED. THE FOLLOWING THE NEXT SECTOR BOUNDARY "+/-" IT CAN EXPECT 04.07. ---------------------------------------------------------------------- JUNE 22 23 24 25 26 27 28 JUNE Wus 000 000 000 000 000 000 000 F10.7 068 067 067 069 068 069 069 èbcg >A1.0 >A1.0 >A1.0 >A1.0 >A1.0 >A1.0 >A1.0 GOES Sp 000 000 000 000 000 000 000 msh N IMF - -/+ + + +\- - - DSCOVR Å>2 1.3E+6 1.2å+6 1.2E+6 1.4E+6 1.3E+6 1.3E+6 1.3å+6 GOES Ie>2 130 150 157 179 144 198 111 pfu Ap 4 4 5 3 6 7 4 nô Dst nô KIOTO Amsc 3 5 5 4 8 9 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- OBSERVED. NEXT WEEK THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSYNCHRONOUS OR- BIT IS NOT EXPECTED. THE GEOMAGNETIC CONDITION REMAINED QUITE AND UNSETTLED ALL PERIOD. NEXT WEEK THE MOST PROBABLY QUIET AND UNSETTLED GEOMAGNETIC CONDI- TION WILL OBSERVED. 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