[Ips-dsgr] SWS Daily Report - 09 June 22 issued 2330 UT on 09 Jun 2022 [SEC=OFFICIAL]

Regional Warning Centre rwc at ips.gov.au
Fri Jun 10 09:30:48 EST 2022


SUBJ: SWS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/09 JUNE 2022 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
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx
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1A. SOLAR SUMMARY
Activity 09 Jun:  R0

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 09 Jun: 106/55


1B. SOLAR FORECAST
             10 Jun             11 Jun             12 Jun
Activity     R0-R1		R0-R1		   R0-R1
Fadeouts     None expected      None expected      None expected
10.7cm/SSN   105/54             110/60             110/60

COMMENT: Solar activity on UT day 09-Jun was at R0 level, with 
several low-level C-class flares. A currently unnumbered sunspot 
group located west of AR3029 (S21W00) at S22W13 has a beta magnetic 
classification, and was responsible for most of the flaring activity, 
although is starting to decay. AR3029 is currently the only numbered 
sunspot region on the solar disk. An active region beyond the 
northeast limb also produced some low-level C-class flares earlier 
in the UT day, which may be associated with a new sunspot region 
which has very recently rotated onto the solar disk, currently 
at N18E75 and unnumbered. Another new, unnumbered sunspot group 
has started developing near S27E11. Solar activity is expected 
to be at R0-R1 levels over 10-12 Jun. No Earth-directed CMEs 
have been observed. After further analysis and modelling, a large 
filament which had previously lifted off the solar disk in the 
northwest quadrant, producing a CME visible in LASCO imagery 
from 08/1724UT, is not considered to be geoeffective. The solar 
wind speed on 09-Jun was at near background levels, decreasing 
from around 330 km/s early in the UT day, to currently around 
300 km/s. The peak total interplanetary magnetic field strength 
(IMF, Bt) was 7 nT, and the north-south IMF component (Bz) range 
was +3 to -6 nT. Bz was intermittently southward between 1000-1200UT 
and 2050-2140UT. The solar wind speed is expected to remain at 
near background levels over 10-12 Jun.

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2A. MAGNETIC SUMMARY

Geomagnetic field for Australian Region 09 Jun: G0

Estimated Indices 09 Jun : A   K           
   Australian Region       2   11112010
      Darwin               2   12101000
      Learmonth            1   11101010
      Alice Springs        1   10011000
      Gingin               2   11101110
      Canberra             2   11022010
      Hobart               3   11023010    

Estimated Antarctic Regional K Indices 09 Jun :
      Macquarie Island     1   00022000
      Casey                4   22112111
      Mawson              10   33212124

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

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         5
           Planetary              5                         

Observed AFr/Ap Indices 08 Jun :  A   K
           Fredericksburg         5
           Planetary              5   2102 1112     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
10 Jun     5    G0
11 Jun     5    G0
12 Jun     5    G0

COMMENT: G0 geomagnetic conditions were observed in both the 
Australian and Antarctic regions on UT day 09-Jun. G0 conditions 
are expected over 10-12 Jun.

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

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 propagation conditions are expected 
over 10-12 Jun.

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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY


Date   T index
09 Jun    50

Observed Australian Regional MUFs
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 20% over the UT day.

Monthly T index:
Month  T index
May      79
Jun      57
Jul      59

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
10 Jun    60    Near predicted monthly values
11 Jun    60    Near predicted monthly values
12 Jun    60    Near predicted monthly values

COMMENT: Maximum usable frequencies (MUFs) on UT day 09-Jun were 
near monthly predicted values. Spread-F was observed at Hobart 
during local night hours. MUFs are expected to be near monthly 
predicted values over 10-12 Jun.

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5. SPACE ENVIRONMENT SUMMARY

GOES satellite data for 08 Jun
       Daily Proton Fluence >1 MeV:   4.1E+04
       Daily Proton Fluence >10 MeV:  3.5E+04
       Daily Electron Fluence >2 MeV: 1.30E+06   (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 1%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: B3.0

DSCOVR Satellite Solar Wind Day Averaged Data for 08 Jun
Speed: 312 km/sec  Density:    8.4 p/cc  Temp:    36900 K  Bz:   1 nT

(Courtesy Space Weather Prediction Center, Boulder USA)
-----------------------------------------------------------

Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
PO Box 1386                         WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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