[Ips-dhfpr] IPS Daily HF Prop Report - 18 November 04
rwc at ips.gov.au
Fri Nov 19 10:27:00 EST 2004
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z NOVEMBER 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (18 NOVEMBER)
Date T index Conditions
18 Nov 60 Fair-normal
Equatorial PNG Region:
Near predicted monthly values.
Northern Australian Region:
Initially depressed 10-15% 00-05UT.
Enhanced by 25% during local night.
Enhanced by 40% after local dawn.
Southern Australian and New Zealand Region:
Initially depressed 15% 00-05UT.
Enhanced by 15% during local night.
Antarctic Region (Casey/Scott Base):
Enhanced by 25% over the UT day.
PCA Event : No event.
Predicted Monthly T index for November: 35
2. FORECAST (19 NOVEMBER - 21 NOVEMBER)
Date T index Conditions MUFs
19 Nov 55 Normal about 15% above predicted monthly
20 Nov 55 Normal about 15% above predicted monthly
21 Nov 55 Normal about 15% above predicted monthly
COMMENT: MUFs in the Australian region were unexpectedly depressed
10-20% for the first 5 hours of the UT day. MUFs then recovered
to near to above predicted monthly values. HF Communications
Warning 51 was issued in response to this depression. The HF
conditions are expected to remain mostly near to 15% above normal
in Aus/NZ region during the next three days.
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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