Weekly Bulletin on Solar and Geomagnetic Activity
                  Highlights on 07 - 13.06.2021,
                   Forecast on 14 - 21.06.2021,
    Carrington Rotation 2244, 2245 (11,48.05; 07,69.06.2021)   
             Earth out of ecliptic (-1.9 - -1.4) deg. 
             (S32 - N32 is zone of geoeffectiveness)

THE SUNSPOT-FORMING SOLAR ACTIVITY REMAINED ON LOW LEVEL AND
13.06 THE SUN WAS SPOTLESS (46 SPOTLESS DAY AT 2021). THE ES-
TIMATED MOST LIKELY  WEEKLY AVERAGE VALUE OF THE SUNSPOT NUM-
BER IN THE INTERNATIONAL SYSTEM (old) FOR PERIOD IS W=15+17/
-15 (Wn=25+28/-25). ON THE VISIBLE SOLAR DISK 4 SMALL SUNSPOT 
GROUPS WERE OBSERVED SIMULTANEOUSLY.
  
 NEXT WEEK SUNSPOT ACTIVITY WILL BE ON VERY LOW AND LOW LEVEL. 
WEEKLY AVERAGE VALUE OF THE RELATIVE SUNSPOT NUMBER IN THE IN-
TERNATIONAL SYSTEM (old) FOR NEXT WEEK IS W=020+10/-10. 

 FLARE ACTIVITY WAS AT LOW LEVELS.  6 SOLAR FLARE OF X-RAY "C"
CLASS, 57 -"B" AND 5 CORONAL MASS EJECTIONS (8, 9.06) WAS HAVE
BEEN OBSERVED AT THE PERIOD. 
-------------------------------------------------------------------
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 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  Sp/craft 
* - 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. 
----------------------------------------------------------------------

 7/0940 -12.06/1230 UT THE EARTH IS IN THE "-" SECTOR OF THE INTER-
PLANETARY MAGNETIC FIELD. FOLLOWING SECTOR BOUNDARY "+/-" IT CAN BE 
EXPECT 09.06.
---------------------------------------------------------------------- 
MAY      07     08     09     10     11     12     13  JUNE
Wus     053    034    027    029    013    000    022
F10.7   081    080    079    073    077    078    069   
èbcg   ÷1.0   ÷1.5   ÷2.4   ÷1.1   á8.4   á7.7   á6.3  GOES
Sp      170    090    030    020    010    000    140  msh   
N        1             1                           1   
IMF     +/-     -      -      -      -     -/+     +   DSCOVR   
Å>2  1.3å+6 1.3E+6 1.6å+6 1.3E+6 1.3E+6 1.5E+6 1.4å+6  GOES
Ie>2    223     -     149    151    165    112    189  pfu
Ap       12     5      4      5      10     10     6   nô  
Dst                                                    nô KIOTO
Amsc     14     5      4      5      8      12     5   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 NOT OBSERVED. 
 
NEXT WEEK THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSYNCHRONOUS 
ORBIT IS NOT EXPECTED.

THE GREATER THAN 10 MeV PROTON FLUX REFLECTED A SLIGHT ENHANCE-
MENT TO JAST OVER 1 PFU AT 09/1600 UT FROM THE CME THAT ERUPTED 
OFF FROM AROUND THE WEST LIMB.

 THE GEOMAGNETIC CONDITION  REMAINED QUIET AND UNSETTLED.

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