[Ips-dhfpr] IPS Daily HF Prop Report - 07 April 01

rwc rwc at ips.gov.au
Sun Apr 8 09:38:51 EST 2001


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 07/2330Z APRIL 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (07 APRIL) 
Date   T index  Conditions    
07 Apr   155    Normal         

Flares: none.

MUFs:
   Equatorial PNG and Northern Australian Regions:
      Mostly near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 25% over the UT day.


Predicted Monthly T index for April: 120
2. FORECAST (08 APRIL - 10 APRIL)
Date   T index  Conditions       MUFs                              
08 Apr   120    Normal-fair      depressed 10 to 20%/near predicted 
                                 monthly values 
09 Apr   100    Fair             10 to 20% below predicted monthly 
                                 values     
10 Apr   140    Normal           Near predicted monthly values    
COMMENT: IPS HF Communications Warning 20 was issued on 6 April 
and is current for interval 8-10 April. Shortwave fadeouts expected 
on daylight HF circuits. Polar region HF comms still affected 
by PCA with proton fluxes still enhanced. Depressed conditions 
for 8 and 9 April are expected following the arrival of two shocks 
associated with M5 and X5 flares and CMEs observed on the 5 and 
6 April from region 9415. 

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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