[Ips-dhfpr] IPS Daily HF Prop Report - 10 January 02

rwc rwc at ips.gov.au
Fri Jan 11 10:15:33 EST 2002


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 10/2330Z JANUARY 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (10 JANUARY) 
Date   T index  Conditions    
10 Jan   169    Normal         

Flares: none.

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
      Enhanced by 15% after local dawn.
   Southern Australian and New Zealand Region:
      Enhanced by 25% during local day,
      Enhanced by 30% during local night.
   Antarctic Region (Casey/Scott Base):
      Proton event in progress, increased absorption observed.


Predicted Monthly T index for January: 109
2. FORECAST (11 JANUARY - 13 JANUARY)
Date   T index  Conditions       MUFs                              
11 Jan   125    Normal-Fair      depressed 10 to 15%/near predicted 
                                 monthly values 
12 Jan   135    Normal-Fair      near predicted monthly values     
13 Jan   135    Normal           near predicted monthly values    
COMMENT: IPS HF Communications Warning 2 was issued on 9 January 
and is current for interval 10-12 January (SWFs) . Unexpected 
bief geomagnetic activity overnight may cause depressed MUFs 
after local dawn this morning particulalrly southern region Aus/NZ. 
Southern region MUFs in general are expected to come down (from 
recently enhanced levels) over the next few days in association 
with increased coronal hole sourced geomagnetic activity over 
this period. 

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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