[Ips-dhfpr] IPS Daily HF Prop Report - 22 November 01

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 22/2330Z NOVEMBER 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (22 NOVEMBER) 
Date   T index  Conditions    
22 Nov   169    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.3    1708UT  possible   lower  South American/
                                    Atlantic
  M4.1    2036UT  possible   lower  East Pacific/
                                    North American
  X1.0    2332UT  probable   all    West Pacific

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Northern Australian Region:
      Enhanced by 15-30%.
   Southern Australian and New Zealand Region:
      Enhanced by 20-25%.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


Predicted Monthly T index for November: 109
2. FORECAST (23 NOVEMBER - 25 NOVEMBER)
Date   T index  Conditions       MUFs                              
23 Nov   180    Normal           about 20% above predicted monthly 
                                 values 
24 Nov   150    Fair-normal      Initially 15% enhanced then 
                                 15% depressed later in UT day.     
25 Nov    70    Poor-fair        10 to 30% below predicted monthly 
                                 values    
COMMENT: IPS HF Communications Warning 74 was issued on 23 November 
and is current for interval 23-25 November (SWFs) . Degradation 
during interval 24-25 Nov is now expected to be stronger due 
to the recent M3 and X1 events and inferred mass ejection(s). 
Lower than normal MUfs are expected on 25-26 Nov. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
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