[Ips-dsgr] IPS Daily Report - 08 September 12 issued 2301 UT on 08 Sep 2012

rwc rwc at ips.gov.au
Sun Sep 9 09:01:12 EST 2012


SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/08 SEPTEMBER 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 08 SEPTEMBER AND FORECAST FOR 09 SEPTEMBER - 11 SEPTEMBER
STATUS INDICATORS SOL:** YELLOW **   MAG:GREEN     ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 08 Sep:  Moderate

Flares    Max     Fadeout    Freq.  Sectors
 M1       1759UT  possible   lower  South American/
                                    Atlantic
Observed 10.7 cm flux/Equivalent Sunspot Number for 08 Sep: 129/82

1B. SOLAR FORECAST
             09 Sep             10 Sep             11 Sep
Activity     Low to moderate    Low                Low
Fadeouts     Possible           None expected      None expected
10.7cm/SSN   125/78             115/66             110/60

COMMENT: Solar activity was Moderate during the UT day, 08 September 
with several C class flares and an M1.4 peaking at 1759UT from 
AR 1564(S15W41). C2 LASCO imagery showed a CME on the west limb 
beginning at 10UT, but is not expected to be geoeffective. The 
solar wind speed was light during the UT day ranging between 
400 and 360 km/s. The Bz component of the IMF varied between 
-6 and 5nT. Expect Low solar activity for the next three days 
with a chance of M-class flares. Expect the solar wind to remain 
light over the next three days with possibilities of weak reconnection
due to periods of a weak southward Bz orientation. 

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

Geomagnetic field for Australian Region 08 Sep: Quiet 

Estimated Indices 08 Sep : A   K           
   Australian Region       4   12121211
      Darwin               4   12121211
      Townsville           7   22222222
      Learmonth            7   22122321
      Norfolk_Island       3   22021110
      Camden               4   12121211
      Canberra             4   12121211
      Hobart               5   12122211
    
Estimated Antarctic Regional K Indices 08 Sep :
      Macquarie_Island    10   12234321
      Casey                8   33321211
      Mawson              19   45332333
 
Observed Regional daily pc3 Indices 08 Sep : 
      Darwin               0   (Quiet)
      Townsville           0   (Quiet)
      Learmonth            0   (Quiet)
      Alice_Springs        0   (Quiet)
      Gnangara             2   (Quiet)
      Canberra             8   (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 Space Environment Research Center, Japan.

Estimated AFr/Ap Indices 08 Sep : A 
           Fredericksburg         7
           Planetary              8                         

Observed AFr/Ap Indices 07 Sep :  A   K
           Fredericksburg         8
           Planetary              9   1332 2223     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
09 Sep     6    Quiet 
10 Sep     6    Quiet 
11 Sep    12    Unsettled 

COMMENT: The geomagnetic field was Mostly Quiet in the Australian 
region with isolated cases of Active levels in the Antarctic 
region over the UT day, 08 September. Expect mostly Quiet conditions 
to prevail over the next two days with possible cases of Unsettled 
or Active levels particularly at high latitudes. Late on 11 September 
geomagnetic activity may increase due to M-class flare from AR 
1564 occurring at 08/1759UT. 

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

PCA Event : No event.

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
09 Sep      Normal         Normal         Normal-fair   
10 Sep      Normal         Normal         Normal-fair   
11 Sep      Normal         Normal         Normal-fair   

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

Date   T index
08 Sep    71

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

Predicted Monthly T index for September:  79

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
09 Sep    79    near predicted monthly values 
10 Sep    79    near predicted monthly values 
11 Sep    79    Near predicted monthly values 

COMMENT: Mostly normal HF conditions noted during the UT day, 
08 September. Expect near predicted HF conditions for the next 
three days, 09-11 September. 

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

GOES satellite data for 07 Sep
       Daily Proton Fluence >1 MeV:   1.7E+06
       Daily Proton Fluence >10 MeV:  1.6E+04
       Daily Electron Fluence >2 MeV: 1.60E+07   (normal fluence)   
Electron Fluence Daily Deep Dielectric Discharge Probability: 3%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: B5.3

ACE Satellite Solar Wind Day Averaged Data for 07 Sep
Speed: 385 km/sec  Density:    0.3 p/cc  Temp:    64900 K  Bz:  -4 nT

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


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