[Ips-dsgr] SWS Daily Report - 09 June 20 issued 2330 UT on 09 Jun 2020

Wed Jun 10 09:30:57 EST 2020

SUBJ: SWS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/09 JUNE 2020 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 09 JUNE AND FORECAST FOR 10 JUNE - 12 JUNE
STATUS INDICATORS SOL:GREEN   MAG:GREEN     ION: GREEN
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1A. SOLAR SUMMARY
Activity 09 Jun:  Very low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 09 Jun:  72/8

1B. SOLAR FORECAST
             10 Jun             11 Jun             12 Jun
Activity     Very low to low    Very low to low    Very low to low
Fadeouts     None expected      None expected      None expected
10.7cm/SSN    72/8               72/8               70/5

COMMENT: Solar activity was very low on UT day 09 June. Very 
low to low levels of solar activity are expected for the next 
three days, 10 to 12 June. The filament associated with AR 2765(S23W06) 
appears to have disappeared in H-alpha and may be associated 
with activity 1918-2013 UT observed in SDO images. No returning 
regions expected. No Earthward directed CMEs were observed in 
the available coronagraph images. There was a mild disturbance 
to the solar wind commencing around 1645 UT. The solar wind speed 
range was 352 to 484 km/s peaking at 2106 UT, wind speed is currently 
around 470 km/s. The total IMF (Bt) reached 7 nT and the north-south 
IMF component, Bz, range was -6 to 5 nT. Solar wind conditions 
are expected to remain near nominal levels 10 to 12 June.

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2A. MAGNETIC SUMMARY

Geomagnetic field for Australian Region 09 Jun: Quiet

Estimated Indices 09 Jun : A   K           
   Australian Region       3   11000222
      Cocos Island         2   01010122
      Darwin               2   11000221
      Townsville           3   11101221
      Learmonth            3   11000222
      Alice Springs        3   01000222
      Gingin               2   00000122
      Canberra             1   00000111
      Hobart               2   11000112    

Estimated Antarctic Regional K Indices 09 Jun :
      Macquarie Island     0   00000010
      Casey                4   12100222
      Mawson              22   12100147

Observed Regional daily pc3 Indices 09 Jun : 
      Darwin               0   (Quiet)
      Townsville           0   (Quiet)
      Learmonth            0   (Quiet)
      Alice Springs        0   (Quiet)
      Gingin               2   (Quiet)
      Canberra             2   (Quiet)
      Melbourne           NA

Pc3 pulsations are high frequency (10-45 second period) variations 
of the Earths magnetic field. Daily pc3-indices are the daily sum 
of 20 minute pc3-indices for that station and have been shown to be
well correlated with rejection of high resolution aeromagnetic
survey flight-line data. 

NOTE: Indices may have been generated from data obtained in 
cooperation with the following organisations: Geoscience Australia, 
University of Newcastle Space Physics Group, Australian Government 
Antarctic Division and International Center for Space Weather 
Science and Education, Japan.

Estimated AFr/Ap Indices 09 Jun : A 
           Fredericksburg         4
           Planetary              5                         

Observed AFr/Ap Indices 08 Jun :  A   K
           Fredericksburg         6
           Planetary              6   2310 2111     

2B. MAGNETIC FORECAST 
Date      Ap    Conditions
10 Jun     7    Quiet
11 Jun     7    Quiet
12 Jun     7    Quiet

COMMENT: Geomagnetic conditions in the Australian region were 
quiet on UT day 09 June. The Antarctic region observed quiet 
conditions with a period of storm conditions at Mawson late on 
09 June. Mostly quiet conditions are expected 10 to 12 June.

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3A. GLOBAL HF PROPAGATION SUMMARY
	            Latitude Band
Date        Low            Middle         High 
09 Jun      Normal-fair    Normal-fair    Normal-fair    

PCA Event : No event.

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
10 Jun      Normal         Normal         Normal
11 Jun      Normal         Normal         Normal
12 Jun      Normal         Normal         Normal

COMMENT: Mostly normal HF conditions are expected for the next 
three UT days, 10 to 12 June.

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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY

Date   T index
09 Jun    -1

Observed Australian Regional MUFs
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 35% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 45% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

Monthly T index:
Month  T index
May      1
Jun      -12
Jul      -13

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
10 Jun     0    Near predicted monthly values
11 Jun     0    Near predicted monthly values
12 Jun     0    Near predicted monthly values

COMMENT: MUFs were near predicted monthly values to enhanced 
on 09 June. Sporadic E was observed at Townsville 02-08 UT, sometimes 
blanketing, Darwin 06-11 UT, and in the early evening at some 
other sites. Night spread F observed at most stations. MUFs in 
the Australian region are expected to be mostly near predicted 
monthly values for the next three days, 10 to 12 June.

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5. SPACE ENVIRONMENT SUMMARY

GOES satellite data for 08 Jun
       Daily Proton Fluence >1 MeV:   5.7E+04
       Daily Proton Fluence >10 MeV:  4.7E+04
       Daily Electron Fluence >2 MeV: 1.40E+06   (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 1%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: A3.4

DSCOVR Satellite Solar Wind Day Averaged Data for 08 Jun
Speed: 465 km/sec  Density:    6.2 p/cc  Temp:   220000 K  Bz:   0 nT

(Courtesy Space Weather Prediction Center, Boulder USA)
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Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
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