[Ips-dsgr] IPS Daily Report - 27 July 09

rwc rwc at ips.gov.au
Tue Jul 28 09:30:20 EST 2009


SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 27/2330Z JULY 2009 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 27 JULY AND FORECAST FOR 28 JULY - 30 JULY
STATUS INDICATORS SOL:GREEN   MAG:GREEN     ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 27 Jul:  Very low

Flares: None

Observed 10.7 cm flux/Equivalent Sunspot Number for 27 Jul:  68/2

1B. SOLAR FORECAST
             28 Jul             29 Jul             30 Jul
Activity     Very low           Very low           Very low
Fadeouts     None expected      None expected      None expected
10.7cm/SSN    69/3               69/3               70/5

COMMENT: The visible disc is spotless. The solar wind speed has 
decreased to below 400 km/s. 

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

Geomagnetic field for Australian Region 27 Jul: Quiet 

Estimated Indices 27 Jul :  A   K           
   Australian Region       4   11112121
      Darwin               3   11101121
      Townsville           7   22222222
      Learmonth            4   11122121
      Camden               2   11001121
      Canberra             1   01001111
      Hobart               3   11112111
      Casey(Ant)           7   23222121
    
Observed Regional daily pc3 Indices 27 Jul : 
      Darwin               0   (Quiet)
      Townsville           0   (Quiet)
      Learmonth            0   (Quiet)
      Alice_Springs        0   (Quiet)
      Gnangara            29   (Quiet to unsettled)
      Canberra             0   (Quiet)
      Hobart               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 27 Jul : A 
           Fredericksburg         4
           Planetary              4                         

Observed AFr/Ap Indices 26 Jul :  A   K
           Fredericksburg         1
           Planetary              3   1000 1111     

2B. MAGNETIC FORECAST 
Date      Ap    Conditions
28 Jul     5    Quiet 
29 Jul     5    Quiet 
30 Jul     5    Quiet 

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

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
28 Jul      Normal         Normal         Normal
29 Jul      Normal         Normal         Normal
30 Jul      Normal         Normal         Normal

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

Date   T index
27 Jul    -7

Observed Australian Regional MUFs
   Equatorial PNG/Niue Region:
      Near predicted monthly values at Niue with depressions
      to 30% 00, 12-15 and 20 UT. No data for Vanimo.
   Northern Australian Region:
      Near predicted monthly values with depressions to 40%
      mostly between 03-12 and 18-19 UT. No data for
      Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. No data for
      Christchurch.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values.

Predicted Monthly T index for July:   6

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
28 Jul    -5    Near predicted monthly values to 30% depressed. 
29 Jul    -5    Near predicted monthly values to 30% depressed. 
30 Jul    -5    Near predicted monthly values to 30% depressed. 

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

GOES satellite data for 26 Jul
       Daily Proton Fluence >1 MeV:   1.6E+06
       Daily Proton Fluence >10 MeV:  2.0E+04
       Daily Electron Fluence >2 MeV: 5.90E+07   (normal fluence)   
Electron Fluence Daily Deep Dielectric Discharge Probability: 8%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: A1.0

ACE Satellite Solar Wind Day Averaged Data for 26 Jul
Speed: 417 km/sec  Density:    1.9 p/cc  Temp:    65700 K  Bz:   1 nT

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


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