[Ips-dhfpr] IPS Daily HF Prop Report - 22 January 04
rwc
rwc at ips.gov.au
Fri Jan 23 10:56:41 EST 2004
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 22/2330Z JANUARY 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (22 JANUARY)
Date T index Conditions
22 Jan 77 Normal-poor
Flares: none.
MUFs:
Equatorial PNG Region:
Near predicted monthly values.
Northern Australian Region:
Enhanced by 20% during local day,
Southern Australian and New Zealand Region:
Mostly near predicted monthly values,
Depressed by 30% after local dawn.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
PCA Event : No event.
Predicted Monthly T index for January: 56
2. FORECAST (23 JANUARY - 25 JANUARY)
Date T index Conditions MUFs
23 Jan 40 Fair depressed 10 to 20%/near predicted
monthly values
24 Jan 60 Normal Near predicted monthly values
25 Jan 70 Normal Near predicted monthly values
COMMENT: IPS HF Communications Warning 8 was issued on 21 January
and is current for interval 21-23 January. Persistent and intense
sporadic-E observed at times at high latitudes. Increased absorption
observed S. Ocean/Antarctic regions. Significant depressions
are expected at times on 23 January as the result of elevated
geomagnetic activity levels. Current geomagnetic activity is
a consequence of recent solar flare activity. Another shock arrival
is possible after Jan 23, due to recent solar filament erutions.
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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