[Ips-dsgr] SWS Daily Report - 22 June 20 issued 2331 UT on 22 Jun 2020

Tue Jun 23 09:31:26 EST 2020

SUBJ: SWS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/22 JUNE 2020 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 22 JUNE AND FORECAST FOR 23 JUNE - 25 JUNE
STATUS INDICATORS SOL:GREEN   MAG:GREEN     ION: GREEN
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1A. SOLAR SUMMARY
Activity 22 Jun:  Very low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 22 Jun:  68/2

1B. SOLAR FORECAST
             23 Jun             24 Jun             25 Jun
Activity     Very low           Very low           Very low
Fadeouts     None expected      None expected      None expected
10.7cm/SSN    68/2               68/2               68/2

COMMENT: Solar activity was Very Low on UT day 22 June. There 
are currently no numbered active regions on the visible solar 
disk. Very Low solar activity is expected for the next three 
UT days, 23-25 June. GONG Halpha imagery showed some small filaments 
in the NW quadrant, they are monitored for any lift off. No Earthward 
directed CMEs were observed in the available coronagraph images. 
During UT day 22 June, the solar wind speed remained under 320 
km/s. The total IMF (Bt) varied between 2-4 nT and the north-south 
IMF component (Bz) varied mostly between +/- 2 nT. Solar wind 
conditions are expected to remain mostly at background levels 
on UT days 23-25 June.

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2A. MAGNETIC SUMMARY

Geomagnetic field for Australian Region 22 Jun: Quiet

Estimated Indices 22 Jun : A   K           
   Australian Region       0   00000000
      Cocos Island         0   01000000
      Darwin               0   01100000
      Townsville           1   01100001
      Learmonth            0   00000000
      Alice Springs        0   00000000
      Gingin               0   00000000
      Canberra             0   10000000
      Hobart               1   10110000    

Estimated Antarctic Regional K Indices 22 Jun :
      Macquarie Island     0   00010000
      Casey                1   01001100
      Mawson               1   11001001

Observed Regional daily pc3 Indices 22 Jun : 
      Darwin               0   (Quiet)
      Townsville           0   (Quiet)
      Learmonth            0   (Quiet)
      Alice Springs        0   (Quiet)
      Gingin               0   (Quiet)
      Canberra             0   (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 22 Jun : A 
           Fredericksburg         4
           Planetary              4                         

Observed AFr/Ap Indices 21 Jun :  A   K
           Fredericksburg         4
           Planetary              4   1101 1111     

2B. MAGNETIC FORECAST 
Date      Ap    Conditions
23 Jun     5    Quiet
24 Jun     5    Quiet
25 Jun     5    Quiet

COMMENT: On UT day 22 June, geomagnetic conditions were Quiet 
in the Australian and Antarctic regions. Global geomagnetic activity 
is expected to remain at Quiet levels on UT days 23-25 June.

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3A. GLOBAL HF PROPAGATION SUMMARY
	            Latitude Band
Date        Low            Middle         High 
22 Jun      Normal         Normal         Normal         

PCA Event : No event.

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
23 Jun      Normal         Normal         Normal
24 Jun      Normal         Normal         Normal
25 Jun      Normal         Normal         Normal

COMMENT: Mostly normal HF conditions are expected for the next 
three UT days, 23-25 June.

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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY

Date   T index
22 Jun    -6

Observed Australian Regional MUFs
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 30% 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
23 Jun    -5    Near predicted monthly values
24 Jun    -5    Near predicted monthly values
25 Jun    -5    Near predicted monthly values

COMMENT: MUFs were near predicted monthly values to slightly 
enhanced on UT day 22 June. Sporadic E and spread F were observed 
at times over some Australian sites. MUFs in the Australian region 
are expected to be mostly near predicted monthly values for the 
next three UT days, 23-25 June.

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5. SPACE ENVIRONMENT SUMMARY

GOES satellite data for 21 Jun
       Daily Proton Fluence >1 MeV:   6.3E+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: <A1.0

DSCOVR Satellite Solar Wind Day Averaged Data for 21 Jun
Speed: 311 km/sec  Density:    5.2 p/cc  Temp:    17500 K  Bz:   1 nT

(Courtesy Space Weather Prediction Center, Boulder USA)
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Bureau of Meteorology
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