Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 05 - 11.07.2021, Forecast on 12 - 19.07.2021, Carrington Rotation 2246 (04,88.07.2021) Earth out of ecliptic (0.8 - 1.4) deg. (S32 - N32 is zone of geoeffectiveness) THE SUNSPOT-FORMING SOLAR ACTIVITY WAS ON MIDDLE AND LOW LEVELS. THE ESTIMATED MOST LIKELY WEEKLY AVERAGE VALUE OF THE SUNSPOT NUMBER IN THE INTERNATIONAL SYSTEM (old) FOR PERIOD IS W=17+13/-3 (Wn=28+15/-5). THERE WERE ONE LARGE AND 4 SMALL QUITE SUNSPOT GROUPS ON THE VISIBLE SOLAR DISK HAS BEEN OBSERVED. NEXT WEEK SUNSPOT ACTIVITY WILL BE ON LOW AND LEVEL. WEEKLY AVE- RAGE VALUE OF THE RELATIVE SUNSPOT NUMBER IN THE INTERNATIONAL SYSTEM (old) FOR NEXT WEEK IS W=020+20/-10. FLARE ACTIVITY WAS AT LOW AND VERY LOW LEVELS. 7 SOLAR FLARE OF X-RAY CLASS "ó", 47- "B", AND 10 CORONAL MASS EJECTIONS (5-7, 9. 07) 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 10.07 >0049 1000 >1248 N46E54L338 20 óíå/1348 -------------------------------------------------------------------- NEXT WEEK THE FLARE ACTIVITY IS EXPECTED AT LOW AND 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 óH* + N40L024 N30L029 N20L016 N30L014 0.9% 07.07 1 SDO,SOHO * - 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. ---------------------------------------------------------------------- AFTER 7.07/13 UT THE EARTH IS IN THE "+" SECTOR OF THE INTERPLANETARY MAGNETIC FIELD. FOLLOWING SECTOR BOUNDARY "+/-" IT CAN BE EXPECT 12.07. ---------------------------------------------------------------------- JUNE 05 06 07 08 09 10 11 éàìø Wus 043 052 025 023 023 024 023 F10.7 089 083 076 073 074 074 074 èbcg ÷1.7 ÷1.7 ÷1.5 A8.7 A7.6 á4.9 á3.4 GOES Sp 530 330 020 020 030 080 070 msh N 1 1 1 IMF ~ - -/+ + + + + DSCOVR Å>2 1.9å+6 1.6E+6 1.6å+6 1.9E+6 1.8E+6 1.4E+6 1.3å+6 GOES Ie>2 325 163 161 205 171 161 159 pfu Ap 7 8 6 5 5 6 3 nô Dst nô KIOTO Amsc 9 8 6 6 7 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 RECURRENT ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT NO OBSERVED. NEXT WEEK THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT IS NOT EXPECTED. THE GEOMAGNETIC CONDITION REMAINED QUIET ALL DAYS. IN THE NEXT WEEK THE MOST PROBABLE IS EXPECTED A QUITE AND UN- SETTLED GEOMAGNETIC CONDITION. 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