[Ips-dhfpr] IPS Daily HF Prop Report - 18 April 02

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z APRIL 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 APRIL) 
Date   T index  Conditions    
18 Apr   142    Poor-fair      

Flares: none.

MUFs:
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Enhanced by 20% during local night.
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values 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 20% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Degraded upto 20% to enhanced upto nearly 20%.


Predicted Monthly T index for April: 113
2. FORECAST (19 APRIL - 21 APRIL)
Date   T index  Conditions       MUFs                              
19 Apr   120    Fair             depressed 5 to 10%/near predicted 
                                 monthly values 
20 Apr   140    Fair-normal      near predicted monthly values     
21 Apr   150    Normal           15 to 20% above predicted monthly 
                                 values    
COMMENT: Due to the expected geomagnetic activity at 'active 
to minor storm' level on 19 April, degraded HF conditions are 
expected on 19 April. The HF conditions are expected to recover 
in the second half of April 20. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
PO Box 1386                       | WWW: http://www.ips.gov.au/asfc
Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au/users/asfc/ 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060