[Ips-dhfpr] IPS Daily HF Prop Report - 16 April 01

rwc rwc at ips.gov.au
Tue Apr 17 09:17:48 EST 2001


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 16/2330Z APRIL 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (16 APRIL) 
Date   T index  Conditions    
16 Apr   132    Fair-normal    

Flares    Max     Fadeout    Freq.  Sectors
 M1/--    0622UT  possible   lower  Mid East/Indian

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.
      Absorption observed due to proton event(declining).


Predicted Monthly T index for April: 120
2. FORECAST (17 APRIL - 19 APRIL)
Date   T index  Conditions       MUFs                              
17 Apr   110    Normal-Fair      near predicted monthly values 
18 Apr    85    Fair             near predicted monthly values/depressed 
                                 10 to 20%     
19 Apr    90    Normal-Fair      depressed 10 to 15%/near predicted 
                                 monthly values    
COMMENT: IPS HF Communications Warning 26 was issued on 16 April 
and is current for interval 18-19 April. Degraded HF conditions 
expected late on 18 April due to anticipated geomagnetic activity 
from X14 flare and recurrent factors. Effects are expected to 
be confined to mid to high latitudes (southern Aus/NZ region). 

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 




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