[Ips-dsgr] IPS Daily Report - 28 July 08

rwc rwc at ips.gov.au
Tue Jul 29 09:27:25 EST 2008


SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 28/2330Z JULY 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 28 JULY AND FORECAST FOR 29 JULY - 31 JULY
STATUS INDICATORS SOL:GREEN   MAG:GREEN     ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 28 Jul:  Very low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 28 Jul:  66/0

1B. SOLAR FORECAST
             29 Jul             30 Jul             31 Jul
Activity     Very low           Very low           Very low
Fadeouts     None expected      None expected      None expected
10.7cm/SSN    66/0               66/0               66/0

COMMENT: Very low solar activity over the last 24 hours. Solar 
activity is expected to remain at very low levels for the next 
3 days. 

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

Geomagnetic field for Australian Region 28 Jul: Quiet 

Estimated Indices 28 Jul :  A   K           
   Australian Region       5   22221111
      Darwin               5   22121112
      Townsville           8   23222222
      Learmonth            4   22221100
      Camden               4   12221110
      Canberra             5   22231100
      Hobart               5   22231110
      Casey(Ant)           7   23321211
    
Observed Regional daily pc3 Indices 28 Jul : 
      Darwin               0   (Quiet)
      Townsville           0   (Quiet)
      Learmonth            0   (Quiet)
      Alice_Springs        0   (Quiet)
      Culgoora             0   (Quiet)
      Camden               0   (Quiet)
      Gnangara             8   (Quiet)
      Canberra             2   (Quiet)
      Hobart               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 28 Jul : A 
           Fredericksburg         5
           Planetary              8                         

Observed AFr/Ap Indices 27 Jul :  A   K
           Fredericksburg         4
           Planetary              7   0002 1224     

2B. MAGNETIC FORECAST 
Date      Ap    Conditions
29 Jul     4    Quiet 
30 Jul     5    Quiet 
31 Jul     6    Quiet 

COMMENT: Quiet geomagnetic conditions observed over the last 
24 hours. Mostly quiet conditions are expected for the next 3 
days. 

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

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

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

Date   T index
28 Jul     8

Observed Australian Regional MUFs
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 40% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 40% over the UT day.

Predicted Monthly T index for July:   4

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
29 Jul     5    near predicted monthly values 
30 Jul     5    near predicted monthly values 
31 Jul     5    Near predicted monthly values 

COMMENT: Mostly normal HF conditions observed over the last 24 
hours. Depressed periods during local day for Northern AUS/Equatorial 
regions. Normal conditions for Southern AUS/NZ regions with continued 
enhancements during local night. Expect similar conditions for 
the next 3 days. 

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

GOES satellite data for 27 Jul
       Daily Proton Fluence >1 MeV:   2.1E+06
       Daily Proton Fluence >10 MeV:  1.7E+04
       Daily Electron Fluence >2 MeV: 2.50E+08   (moderate fluence)   
Electron Fluence Daily Deep Dielectric Discharge Probability:17%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: A1.0

ACE Satellite Solar Wind Day Averaged Data for 27 Jul
Speed: 378 km/sec  Density:    4.9 p/cc  Temp:    70300 K  Bz:  -1 nT

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