[Ips-dhfpr] IPS Daily HF Prop Report - 31 December 04
rwc at ips.gov.au
Sat Jan 1 10:42:01 EST 2005
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 31/2330Z DECEMBER 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (31 DECEMBER)
Date T index Conditions
31 Dec 79 Normal
Flares Max Fadeout Freq. Sectors
M1.2 1445UT possible lower South American/
Equatorial PNG Region:
No data available during local day,
Depressed by 25% during local night.
Northern Australian Region:
Enhanced by 15% during local day,
Enhanced by 40% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
PCA Event : No event.
Predicted Monthly T index for December: 35
2. FORECAST (01 JANUARY - 03 JANUARY)
Date T index Conditions MUFs
01 Jan 60 Normal-Fair enhanced 15% local day, then depressed 10 to 15%
02 Jan 10 Normal-Fair Depressed 15% after local dawn,
03 Jan 35 Normal Near predicted monthly values
COMMENT: IPS HF Communications Warning 57 was issued on 31 December
and is current for interval 2-3 January. Good HF conditions expected
early today. Depressed conditions expected 02 Jan, possible extending
to 03 Jan due to anticipated arrival of coronal mass ejections.
Effects are expected to be strongest for southern Aus/NZ region.
For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Gloassary on Solar Terrestrial Terms.
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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