[Ips-dsgr] IPS Daily Report - 18 June 13 issued 2330 UT on 18 Jun 2013

Regional Warning Centre rwc at ips.gov.au
Wed Jun 19 09:30:16 EST 2013


SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/18 JUNE 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 18 JUNE AND FORECAST FOR 19 JUNE - 21 JUNE
STATUS INDICATORS SOL:GREEN   MAG:GREEN     ION: GREEN
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1A. SOLAR SUMMARY
Activity 18 Jun:  Low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 18 Jun: 125/78


1B. SOLAR FORECAST
             19 Jun             20 Jun             21 Jun
Activity     Low                Low                Low
Fadeouts     None expected      None expected      None expected
10.7cm/SSN   125/78             125/78             125/78

COMMENT: Five, low level, C-class flares. Most regions appear 
stable although 1773 (N04 E25) has shown continued growth. New 
region (N11 E05). SOHO/LASCO images show two CMEs on the east 
limb at 0125 UT and 0336 UT. LASCO and STEREO images seem to 
indicate they are unlikely to be geo-effective. ACE solar wind 
data show the north-south IMF component ranged between +6 and 
-5 nT with extended southward periods. The wind speed reached 
340 km/s. A northern hemisphere coronal hole has now reached 
central meridian.

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2A. MAGNETIC SUMMARY

Geomagnetic field for Australian Region 18 Jun: Quiet

Estimated Indices 18 Jun : A   K           
   Australian Region       2   11101110
      Cocos Island         2   11110110
      Darwin               3   11201111
      Townsville           6   12212222
      Learmonth            2   11101110
      Norfolk Island       0   01000000
      Culgoora             2   11101111
      Camden               2   11101110
      Canberra             0   00000000
      Hobart               1   01001110    

Estimated Antarctic Regional K Indices 18 Jun :
      Macquarie Island     0   00001100
      Casey                3   11211111
      Mawson              11   33311332
      Davis                9   13322232

Observed Regional daily pc3 Indices 18 Jun : 
      Darwin               4   (Quiet)
      Townsville           0   (Quiet)
      Learmonth           NA
      Alice Springs        0   (Quiet)
      Gingin               0   (Quiet)
      Canberra             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 18 Jun : A 
           Fredericksburg         4
           Planetary              5                         

Observed AFr/Ap Indices 17 Jun :  A   K
           Fredericksburg         5
           Planetary              4   1120 1211     

2B. MAGNETIC FORECAST 
Date      Ap    Conditions
19 Jun     8    Quiet to unsettled
20 Jun     5    Quiet
21 Jun     5    Quiet

COMMENT: Possible isolated active periods at higher latitudes 
19 Jan.

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

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
19 Jun      Normal         Normal         Normal-fair
20 Jun      Normal         Normal         Normal
21 Jun      Normal         Normal         Normal

COMMENT: Ionospheric support for HF propagation is expected to 
remain near monthly predicted values.

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

Date   T index
18 Jun    74

Observed Australian Regional MUFs
   Cocos Island Region:
      Near predicted monthly values. Depressions to 25%
      19, 21-23 UT.
   Niue Island Region:
      Near predicted monthly values. Depressions to 20%
      08-10, 23 UT.
   Northern Australian Region:
      Near predicted monthly values. Enhanced to 20%
      07-10 UT and depressed to 25% 14-17 UT at Darwin.
      Depressed to 20% 03, 11-12 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced to 30% mostly after local midnight.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values with occasional
      depressions to 25%.

Predicted Monthly T index for June:  67

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
19 Jun    75    Near predicted monthly values
20 Jun    75    Near predicted monthly values
21 Jun    75    Near predicted monthly values


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

GOES satellite data for 17 Jun
       Daily Proton Fluence >1 MeV:   1.5E+05
       Daily Proton Fluence >10 MeV:  1.0E+04
       Daily Electron Fluence >2 MeV: 2.20E+07   (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 4%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: B4.6

ACE Satellite Solar Wind Day Averaged Data for 17 Jun
Speed: 318 km/sec  Density:    1.9 p/cc  Temp:    45200 K  Bz:  -1 nT

(Courtesy Space Weather Prediction Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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