[Ips-dsgr] IPS Daily Report - 24 March 04

rwc rwc at ips.gov.au
Thu Mar 25 11:19:46 EST 2004


SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 24/2330Z MARCH 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 24 MARCH AND FORECAST FOR 25 MARCH - 27 MARCH
STATUS INDICATORS SOL:** YELLOW **   MAG:GREEN     ION: GREEN
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1A. SOLAR SUMMARY
Activity 24 Mar:  Low

Flares: M1.5 observed at 2329UT from N15E77.

Observed 10.7 cm flux/Equivalent Sunspot Number for 24 Mar: 120/72


1B. SOLAR FORECAST
             25 Mar             26 Mar             27 Mar
Activity     Low to moderate    Low to moderate    Low to moderate
Fadeouts     Possible           Possible           Possible
10.7cm/SSN   120/72             120/72             115/66
COMMENT: Further M-class flare activity is possible from a region 
rotating around on the north-east limb. 



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2A. MAGNETIC SUMMARY

Geomagnetic field for Australian Region 24 Mar: Quiet 

Estimated Indices 24 Mar :  A   K           
   Australian Region       2   2200 0002
      Darwin               2   2201 0002
      Townsville           1   1201 0002
      Learmonth            2   2200 0002
      Culgoora             0   1100 0002
      Canberra             1   1200 0003
      Hobart               1   1200 0002
      Casey(Ant)           7   3331 0011
    
Observed Regional daily pc3 Indices 24 MAR : 
      Townsville           2   (Quiet)
      Learmonth            0   (Quiet)
      Culgoora             0   (Quiet)
      Canberra             5   (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.

Estimated AFr/Ap Indices 24 Mar : A 
           Fredericksburg         5
           Planetary             10                         

Observed AFr/Ap Indices 23 Mar :  A   K
           Fredericksburg         5
           Planetary              8   3322 2231     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
25 Mar     6    Quiet 
26 Mar     8    Quiet to Unsettled 
27 Mar     8    Quiet to Unsettled 
COMMENT: Mostly quiet conditions are expected for the next few 
days. 

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3A. GLOBAL HF PROPAGATION SUMMARY
	            Latitude Band
Date        Low            Middle         High 
24 Mar      Normal         Normal         Normal         
PCA Event : No event.

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
25 Mar      Normal         Normal         Normal
26 Mar      Normal         Normal         Normal-Fair
27 Mar      Normal         Normal         Normal-Fair
COMMENT: Generally good HF conditions expected for the next few 
days. 
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY


Date   T index
24 Mar    80

Observed Australian Regional MUFs
   Equatorial PNG Region:
      Near predicted monthly values 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:
      Enhanced by 15% during local day,
      Enhanced by 20% during local night.
      Enhanced by 25% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Mostly normal to enhanced.


Predicted Monthly T index for March:  49

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
25 Mar    70    10 to 20% above predicted monthly values 
26 Mar    70    10 to 20% above predicted monthly values 
27 Mar    70    10 to 20% above predicted monthly values 
COMMENT: Generally good HF conditions observed, and expected 
next three days. 
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY

GOES satellite data for 23 Mar
       Daily Proton Fluence >1 MeV:   4.3E+05
       Daily Proton Fluence >10 MeV:  1.2E+04
       Daily Electron Fluence >2 MeV: 2.90E+07 (normal)
       X-ray background: B2.1
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.

ACE Satellite Solar Wind Day Averaged Data for 23 Mar
Speed: 394 km/sec  Density:    2.3 p/cc  Temp:    74600 K  Bz:   0 nT

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