[Ips-dsgr] SWS Daily Report - 13 June 18 issued 2330 UT on 13 Jun 2018 [SEC=UNCLASSIFIED]

Regional Warning Centre rwc at ips.gov.au
Thu Jun 14 09:30:24 EST 2018


SUBJ: SWS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/13 JUNE 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 13 JUNE AND FORECAST FOR 14 JUNE - 16 JUNE
STATUS INDICATORS SOL:GREEN   MAG:GREEN     ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 13 Jun:  Very low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 13 Jun:  71/6


1B. SOLAR FORECAST
             14 Jun             15 Jun             16 Jun
Activity     Very low           Very low           Very low
Fadeouts     None expected      None expected      None expected
10.7cm/SSN    72/8               72/8               72/8

COMMENT: Solar activity was Very Low today (UT day, 13 June). 
There is currently one numbered sunspot region (2713) on the 
solar disk visible from the Earthside. No Earth-directed CMEs 
were observed today. The solar wind speed stayed close to 300 
km/s today. The IMF Bt varied between 2 and 6 nT today whereas 
the Bz component of IMF varied mostly between +/-5 nT during 
this time. Solar activity is expected to remain at Very Low levels 
and solar wind stream at normal levels for the next three days 
(UT days 14 to 16 June).

-----------------------------------------------------------
2A. MAGNETIC SUMMARY

Geomagnetic field for Australian Region 13 Jun: Quiet

Estimated Indices 13 Jun : A   K           
   Australian Region       0   00100001
      Darwin               0   01100000
      Townsville           1   10100011
      Learmonth            0   00100001
      Alice Springs        0   01100000
      Gingin               0   00000001
      Canberra             0   00000001
      Launceston           1   01100011
      Hobart               0   00000000    

Estimated Antarctic Regional K Indices 13 Jun :
      Macquarie Island     0   00000000
      Casey                2   12100011
      Mawson              15   12110064

Observed Regional daily pc3 Indices 13 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 13 Jun : A 
           Fredericksburg         7
           Planetary              8                         

Observed AFr/Ap Indices 12 Jun :  A   K
           Fredericksburg         5
           Planetary              4   2210 0111     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
14 Jun     5    Quiet
15 Jun     5    Quiet
16 Jun     5    Quiet

COMMENT: Geomagnetic conditions across the Australian region 
on UT day 13 June were at Quiet levels. Similar levels of geomagnetic 
activity may be expected for the next three days (UT days 14 
to 16 June).

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

PCA Event : No event.

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
14 Jun      Normal         Normal         Normal
15 Jun      Normal         Normal         Normal
16 Jun      Normal         Normal         Normal

COMMENT: MUFs were mostly near predicted monthly values with 
periods of minor to moderate enhancements on UT day 13 June. 
HF conditions are expected to stay normal for the next three 
days (UT days 14 to 16 June).

-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY


Date   T index
13 Jun     4

Observed Australian Regional MUFs
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 25% over the UT day.

Monthly T index:
Month  T index
May      4
Jun      -1
Jul      -2

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
14 Jun     4    Near predicted monthly values
15 Jun     4    Near predicted monthly values
16 Jun     4    Near predicted monthly values

COMMENT: MUFs were mostly near predicted monthly values with 
periods of minor to moderate enhancements for AUS/NZ regions 
on UT day 13 June. HF conditions are expected to stay normal 
in this region for the next three days (UT days 14 to 16 June).

-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY

GOES satellite data for 12 Jun
       Daily Proton Fluence >1 MeV:   7.6E+05
       Daily Proton Fluence >10 MeV:  1.9E+04
       Daily Electron Fluence >2 MeV: 5.00E+07   (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 7%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: A2.6

DSCOVR Satellite Solar Wind Day Averaged Data for 12 Jun
Speed: 302 km/sec  Density:    5.6 p/cc  Temp:    15800 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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