[Ips-dsgr] IPS Daily Report - 19 January 11

rwc rwc at ips.gov.au
Thu Jan 20 10:30:36 EST 2011


SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 19/2330Z JANUARY 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 19 JANUARY AND FORECAST FOR 20 JANUARY - 22 JANUARY
STATUS INDICATORS SOL:GREEN   MAG:GREEN     ION: ** YELLOW **
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1A. SOLAR SUMMARY
Activity 19 Jan:  Very low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 19 Jan:  81/22

1B. SOLAR FORECAST
             20 Jan             21 Jan             22 Jan
Activity     Very low           Very low           Very low
Fadeouts     None expected      None expected      None expected
10.7cm/SSN    82/23              82/23              82/23

COMMENT: Region 1147 (N25E22) appears stable. There is the slight 
possibility of a C-class flare from this region. ACE data show 
the north-south IMF ranged between +/-5 nT with the solar wind 
increasing to peak at ~540 km/s around 12 UT before declining 
to ~470 km/s due to the effects of the coronal hole. 

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

Geomagnetic field for Australian Region 19 Jan: Quiet to Unsettled 

Estimated Indices 19 Jan :  A   K           
   Australian Region       9   32232222
      Darwin               8   31232222
      Townsville           -   --------
      Learmonth            8   22232222
      Canberra             7   22232212
      Hobart               7   22232211
      Casey(Ant)          16   45443223
    
Observed Regional daily pc3 Indices 19 Jan : 
      Darwin               0   (Quiet)
      Townsville          NA
      Learmonth            0   (Quiet)
      Alice_Springs        0   (Quiet)
      Gnangara             2   (Quiet)
      Canberra             0   (Quiet)
      Hobart              11   (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 19 Jan : A 
           Fredericksburg         5
           Planetary              5                         

Observed AFr/Ap Indices 18 Jan :  A   K
           Fredericksburg         3
           Planetary              3   2010 0102     

2B. MAGNETIC FORECAST 
Date      Ap    Conditions
20 Jan     5    Quiet 
21 Jan     5    Quiet 
22 Jan     5    Quiet 

-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
	            Latitude Band
Date        Low            Middle         High 
19 Jan      Fair-normal    Fair-normal    Fair-normal    
PCA Event : No event.

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
20 Jan      Fair-normal    Fair-normal    Fair-normal   
21 Jan      Fair-normal    Fair-normal    Fair-normal   
22 Jan      Fair-normal    Fair-normal    Fair-normal   

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

Date   T index
19 Jan    20

Observed Australian Regional MUFs
   Cocos Island Region:
      Near predicted monthly values with depressions to 35%
      11-12 and 21-23 UT. No data 13-20 UT.
   Niue Island Region:
      Near predicted monthly values with depressions to 30%
      00-06 and 19-23 UT. Blanketing sporadic E 02 UT.
   Northern Australian Region:
      Near predicted monthly values to 30% enhanced.
      Depressions to 35% 18-21 UT. No data for Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with depressions to 25%
      mostly between 01-07 and 17-21 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values with depressions to 25%
      mostly 09-17 and 21 UT.

Predicted Monthly T index for January:  37

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
20 Jan    15    Near predicted monthly values to 30% depressed. 
21 Jan    15    Near predicted monthly values to 30% depressed. 
22 Jan    15    Near predicted monthly values to 30% depressed. 

COMMENT: IPS HF Communications Warning 7 was issued on 18 January 
and is current for interval 19-21 January. 

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

GOES satellite data for 18 Jan
       Daily Proton Fluence >1 MeV:   8.7E+05
       Daily Proton Fluence >10 MeV:  1.4E+04
       Daily Electron Fluence >2 MeV: 3.30E+07   (normal fluence)   
Electron Fluence Daily Deep Dielectric Discharge Probability: 5%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: A5.7

ACE Satellite Solar Wind Day Averaged Data for 18 Jan
Speed: 427 km/sec  Density:    1.4 p/cc  Temp:    60400 K  Bz:   0 nT

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