[Ips-dsgr] IPS Daily Report - 01 October 08

rwc rwc at ips.gov.au
Thu Oct 2 09:25:22 EST 2008


SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 01/2330Z OCTOBER 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 01 OCTOBER AND FORECAST FOR 02 OCTOBER - 04 OCTOBER
STATUS INDICATORS SOL:GREEN   MAG:GREEN     ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 01 Oct:  Very low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 01 Oct:  66/0

1B. SOLAR FORECAST
             02 Oct             03 Oct             04 Oct
Activity     Very low           Very low           Very low
Fadeouts     None expected      None expected      None expected
10.7cm/SSN    66/0               66/0               66/0

COMMENT: The visible solar disk is spotless at this time. The 
Ace spacecraft showed the solar wind to steadily increase from 
500 km/s to 600 km/s on 01 October. It expected that it will 
remain elevated for the next three days. The interplanetary magnetic 
field fluctuated between +8/-6 nT with no significant period 
of southward or the northward orientation dominating. 

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

Geomagnetic field for Australian Region 01 Oct: Quiet to Unsettled 

Estimated Indices 01 Oct :  A   K           
   Australian Region       9   22322322
      Darwin               7   21222312
      Townsville          10   22323322
      Learmonth           10   22323322
      Camden               7   12222322
      Canberra             7   12222322
      Hobart               8   12322322
      Casey(Ant)          13   3-432232
    
Observed Regional daily pc3 Indices 01 Oct : 
      Darwin               0   (Quiet)
      Townsville           0   (Quiet)
      Learmonth            0   (Quiet)
      Alice_Springs        0   (Quiet)
      Camden              48   (Unsettled)
      Gnangara            54   (Unsettled)
      Canberra            71   (Active)
      Hobart              92   (Minor storm)
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 01 Oct : A 
           Fredericksburg         7
           Planetary             15                         

Observed AFr/Ap Indices 30 Sep :  A   K
           Fredericksburg         3
           Planetary              4   0000 1213     

2B. MAGNETIC FORECAST 
Date      Ap    Conditions
02 Oct    10    Quiet to Unsettled 
03 Oct    10    Quiet to Unsettled 
04 Oct    10    Quiet to Unsettled 

COMMENT: Unsettled conditions are expected for the next three 
days with isolated cases of active to minor storm levels possible. 

-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
	            Latitude Band
Date        Low            Middle         High 
01 Oct      Normal         Normal-fair    Normal-fair    
PCA Event : No event.

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
02 Oct      Normal         Normal         Normal-Fair
03 Oct      Normal         Normal         Normal-Fair
04 Oct      Normal         Normal         Normal-Fair

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

Date   T index
01 Oct    -2

Observed Australian Regional MUFs
   Equatorial PNG/Niue Region:
      Depressed by 15% during local day,
      Depressed by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 25% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 15% over the UT day.

Predicted Monthly T index for October:   3

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
02 Oct    -5    near predicted monthly values/depressed 10 to 
                20% 
03 Oct    -5    near predicted monthly values/depressed 10 to 
                20% 
04 Oct    -5    near predicted monthly values/depressed 10 to 
                20% 

COMMENT: There is likely to be mild depressions in the South 
Australian and Antarctic regions due to geomagnetic activity, 
as well as mild depressions in the North Australian and Equitorial 
regions due to low ionisation levels in the ionosphere. 
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY

GOES satellite data for 30 Sep
       Daily Proton Fluence >1 MeV:   7.8E+05
       Daily Proton Fluence >10 MeV:  1.9E+04
       Daily Electron Fluence >2 MeV: 1.90E+06   (normal fluence)   
Electron Fluence Daily Deep Dielectric Discharge Probability: 0%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: A1.0

ACE Satellite Solar Wind Day Averaged Data for 30 Sep
Speed: NA km/sec  Density:  NA p/cc  Temp:  NA K  Bz:  NA nT
Not available at this time.

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


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