[Ips-dsgr] IPS Daily Report - 12 November 12 issued 2345 UT on 12 Nov 2012

rwc rwc at ips.gov.au
Tue Nov 13 10:45:23 EST 2012


SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/12 NOVEMBER 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 12 NOVEMBER AND FORECAST FOR 13 NOVEMBER - 15 NOVEMBER
STATUS INDICATORS SOL:GREEN   MAG:** RED **     ION: ** YELLOW **
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1A. SOLAR SUMMARY
Activity 12 Nov:  Low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 12 Nov: 144/98


1B. SOLAR FORECAST
             13 Nov             14 Nov             15 Nov
Activity     Low                Low                Low
Fadeouts     None expected      None expected      None expected
10.7cm/SSN   145/99             145/99             150/105

COMMENT: Solar activity was Low over the last 24 hours. Active 
region 1610 produced three C-class flares and Active regions 
1613 and 1614 each produced a C-class flare during this period. 
Solar activity is expected to be low for the next 3 days, although 
there is a slight chance that AR 1610 will produce an M-class 
flare. The solar wind speed ranged between just under 300km/s 
to near 350km/s during the UT day. A solar wind shock was observed 
by the ACE spacecraft at approximately 2230UT with the solar 
wind speed rising from approximately 310 to 360km/s due to the 
arrival of an expected CME occurring on 10 November. This was 
preceded by a more gradual rise approximately 8 hours early, 
most likely due to the 9 Nov CME arrival. The IMF dipped to approximately 
-18nT at 2230UT, 12 Nov.

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2A. MAGNETIC SUMMARY

Geomagnetic field for Australian Region 12 Nov: Quiet to Unsettled

Estimated Indices 12 Nov : A   K           
   Australian Region       4   21110122
      Cocos Island         1   1-010011
      Darwin               2   2000012-
      Townsville           6   22111223
      Learmonth            4   2111----
      Norfolk Island       3   20100113
      Culgoora             1   1100----
      Gnangara             3   21110022
      Camden               2   1110012-
      Canberra             7   ---30113
      Hobart               2   1110011-    

Estimated Antarctic Regional K Indices 12 Nov :
      Macquarie Island     3   ----1111
      Mawson              10   22201244
      Davis               10   23322223

Observed Regional daily pc3 Indices 12 Nov : 
      Darwin               0   (Quiet)
      Townsville           3   (Quiet)
      Learmonth            0   (Quiet)
      Alice Springs        0   (Quiet)
      Gnangara             4   (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 12 Nov : A 
           Fredericksburg         5
           Planetary              8                         

Observed AFr/Ap Indices 11 Nov :  A   K
           Fredericksburg         2
           Planetary              2   0000 2111     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
13 Nov    40    Minor Storm
14 Nov    25    Active
15 Nov    12    Unsettled

COMMENT: IPS Geomagnetic Warning 19 was issued on 10 November 
and is current for 12-13 Nov. Geomagnetic conditions were mostly 
Quiet over the last 24 hours with isolated cases of Active levels 
at higher latitudes. Expect an increase in activity near the 
end of the UT day, 12 Nov, due to the arrival of CMEs observed 
on 9-10 Nov. As a result, minor storm conditions are expected 
today, 13 Nov, particularly at higher latitudes. 14-15 Nov should 
see a gradual return to Quiet to Unsettled levels with isolated 
cases of Active levels. Note some K indices from 12 Nov are missing 
due to a backup of data, this data will be made available in 
the near future.

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

PCA Event : No event.

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
13 Nov      Fair           Fair-poor      Poor
14 Nov      Fair           Fair           Fair-poor
15 Nov      Normal         Normal         Normal-fair

COMMENT: HF propagation conditions are likely to be adversely 
affected on 13-14 Nov due to expected CME arrival.

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


Date   T index
12 Nov   101

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

Predicted Monthly T index for November:  81

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
13 Nov    60    Depressed 10 to 30%/near predicted monthly values
14 Nov    50    Depressed 10 to 30%/near predicted monthly values
15 Nov    80    Near predicted monthly values

COMMENT: IPS HF Communications Warning 43 was issued on 10 November 
and is current for 12-13 Nov. MUFs were near monthly predicted 
values to mildly enhanced over the last 24 hours. MUF depressions 
are likely from late 13-14 Nov due to expected CME effects.

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

GOES satellite data for 11 Nov
       Daily Proton Fluence >1 MeV:   8.4E+05
       Daily Proton Fluence >10 MeV:  3.8E+04
       Daily Electron Fluence >2 MeV: 2.30E+06   (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 1%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: B5.4

ACE Satellite Solar Wind Day Averaged Data for 11 Nov
Speed: 288 km/sec  Density:    2.6 p/cc  Temp:    23700 K  Bz:   0 nT

(Courtesy Space Weather Prediction Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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IPS Radio and Space Services        email: asfc at ips.gov.au
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