[Ips-dsgr] IPS Daily Report - 25 October 12 issued 2330 UT on 25 Oct 2012

rwc rwc at ips.gov.au
Fri Oct 26 10:30:18 EST 2012


SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/25 OCTOBER 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 25 OCTOBER AND FORECAST FOR 26 OCTOBER - 28 OCTOBER
STATUS INDICATORS SOL:** YELLOW **   MAG:GREEN     ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 25 Oct:  Low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 25 Oct: 130/84


1B. SOLAR FORECAST
             26 Oct             27 Oct             28 Oct
Activity     Low to moderate    Low to moderate    Low to moderate
Fadeouts     Possible           Possible           Possible
10.7cm/SSN   125/78             120/72             115/66

COMMENT: Solar activity is at Low levels with only minor C class 
flares. Region 11598(S12E20) remains the most magnetically complex 
visible region but has decayed in size and complexity over the 
last 24 hours. Some possibility remains for further isolated 
M class flares over the next few days from this region. The solar 
wind conditions remain ambient.

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

Geomagnetic field for Australian Region 25 Oct: Quiet

Estimated Indices 25 Oct : A   K           
   Australian Region       3   11111012
      Darwin               1   10000012
      Townsville           7   22222222
      Learmonth            7   33311002
      Norfolk Island       2   11010111
      Culgoora             2   10111002
      Camden               3   111-----
      Canberra             0   00000001
      Hobart               1   11011001    

Estimated Antarctic Regional K Indices 25 Oct :
      Macquarie Island     1   01020001
      Mawson              14   43112144
      Davis                9   33222222

Observed Regional daily pc3 Indices 25 Oct : 
      Darwin               0   (Quiet)
      Townsville           0   (Quiet)
      Learmonth           NA
      Alice Springs        0   (Quiet)
      Gnangara             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 Space Environment Research Center, Japan.


Estimated AFr/Ap Indices 25 Oct : A 
           Fredericksburg         3
           Planetary              4                         

Observed AFr/Ap Indices 24 Oct :  A   K
           Fredericksburg         3
           Planetary              4   1211 1111     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
26 Oct     5    Quiet
27 Oct     5    Quiet
28 Oct     5    Quiet

COMMENT: Magnetic conditions are Quiet and are expected to remain 
Quiet for the remainder of the forecast period.

-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
	            Latitude Band
Date        Low            Middle         High 
25 Oct      Normal         Normal         Normal         

PCA Event : No event.

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
26 Oct      Normal         Normal         Normal
27 Oct      Normal         Normal         Normal
28 Oct      Normal         Normal         Normal

COMMENT: Mostly enhanced HF propagation conditions observed at 
all latitudes over the past 24 hours.

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


Date   T index
25 Oct   116

Observed Australian Regional MUFs
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Niue Island Region:
      Enhanced by 25% during local day.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 25% 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 October:  81

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
26 Oct   110    Near to 15% above predicted monthly values
27 Oct   100    Near to 15% above predicted monthly values
28 Oct   100    Near to 15% above predicted monthly values

COMMENT: MUFs remain generally enhanced across Australia. MUFs 
should remain at or above predicted monthly values for the next 
few days.

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

GOES satellite data for 24 Oct
       Daily Proton Fluence >1 MeV:   3.1E+05
       Daily Proton Fluence >10 MeV:  1.2E+04
       Daily Electron Fluence >2 MeV: 9.70E+07   (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability:10%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: B4.7

ACE Satellite Solar Wind Day Averaged Data for 24 Oct
Speed: 345 km/sec  Density:    2.1 p/cc  Temp:    38300 K  Bz:  -2 nT

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

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