[Ips-dhfpr] IPS Daily HF Prop Report - 18 January 05
rwc
rwc at ips.gov.au
Wed Jan 19 10:12:36 EST 2005
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z JANUARY 2005 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (18 JANUARY)
Date T index Conditions
18 Jan 46 Fair
Flares Max Fadeout Freq. Sectors
M1.6 1133UT possible lower European
M4.6 1551UT possible lower South American/
Atlantic
MUFs:
Equatorial PNG Region:
Enhanced by 35% during local day,
Enhanced by 20% during local night.
Northern Australian Region:
Enhanced by 30% during local day,
Near predicted monthly values during local night.
Depressed by 20% after local dawn.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values,
Depressed by 25% after local dawn.
Antarctic Region (Casey/Scott Base):
Proton event in progress, increased absorption observed.
PCA Event : 10Mev Proton/PCA Event Began 16 01 2005 0220UT and is
in progress
Predicted Monthly T index for January: 32
2. FORECAST (19 JANUARY - 21 JANUARY)
Date T index Conditions MUFs
19 Jan -10 Poor-Fair 30 to 40% below predicted monthly
values
20 Jan 10 Fair-normal depressed 10 to 20%/near predicted
monthly values
21 Jan 30 Normal Near predicted monthly values
COMMENT: IPS HF Communications Warning 4 was issued on 17 January
and is current for interval 18-20 January (SWFs) . Southern Aus/NZ
MUFs expected depressed after local dawn this morning. Northern
Aus stations currently near normal.
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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
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