[Ips-dhfpr] IPS Daily HF Prop Report - 30 May 03

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 30/2330Z MAY 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 MAY) 
Date   T index  Conditions    
30 May    24    Poor-fair      

Flares: none.

MUFs:
   Equatorial PNG Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 30% during local day,
      Depressed by 25% during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Absorption observed.


PCA Event : Began at 0155UT 29/05, Ended at 0150UT 30/05
 

Predicted Monthly T index for May:  72
2. FORECAST (31 MAY - 02 JUNE)
Date   T index  Conditions       MUFs                              
31 May    75    Fair-Normal       near predicted monthly values (north Aus)
31 May    50    Fair             depressed 10 to 20% (south Aus/NZ)
01 Jun    60    Normal           depressed 10 to 20%/near predicted 
                                 monthly values     
02 Jun    75    Normal-Fair      Near predicted monthly values    
COMMENT: Depressed conditions observed in southern Aus/NZ region 
yesterday. Northern Aus region remained mostly near normal. Ionospheric 
conditions now expected to be better than originally forecast 
for 31 May due to lack of geomagnetic activity following recent 
solar mass ejection arrival overnight. Depressions of 10-20% 
likely to be experienced for southern region sites after local dawn 
this morning, then improving. Northern region MUFs expected to remain 
near predicted monthly values. 

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

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