[Ips-dhfpr] IPS Daily HF Prop Report - 19 April 02

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 19/2330Z APRIL 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (19 APRIL) 
Date   T index  Conditions    
19 Apr   138    Fair-normal    

Flares: none.

MUFs:
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Near predicted monthly values during local night.
      Enhanced by 35% after local dawn.
   Northern Australian Region:
      Enhanced by 25% during local day,
      Enhanced by 30% during local night.
      Enhanced by 35% after local dawn.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Depressed by 40% after local dawn.
   Antarctic Region (Casey/Scott Base):
      'Normal' to 'degraded upto 40%' over the UT day.


Predicted Monthly T index for April: 113
2. FORECAST (20 APRIL - 22 APRIL)
Date   T index  Conditions       MUFs                              
20 Apr   140    Normal           about 20% above predicted monthly 
                                 values 
21 Apr   150    Normal           15 to 30% above predicted monthly 
                                 values     
22 Apr   160    Normal           15 to 30% above predicted monthly 
                                 values    
COMMENT: IPS HF Communications Warning 15 was issued on 19 April 
and is current for interval 19-20 April. The geomagnetic activity 
is expected to decline to active level for most of the day on 
20 April. The geomagnetic activity is not expected to have any 
significant effect on the HF conditions across Australia. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
PO Box 1386                       | WWW: http://www.ips.gov.au/asfc
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