[Ips-dhfpr] IPS Daily HF Prop Report - 23 January 12 issued 2355 UT on 23 Jan 2012
Regional Warning Centre
rwc at ips.gov.au
Tue Jan 24 10:55:34 EST 2012
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 23/2330Z JANUARY 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (23 JANUARY)
Date T index Conditions
23 Jan 47 Fair-poor
Flares Max Fadeout Freq. Sectors
M1.1 0322UT possible lower E. Asia/Aust.
M8.7 0400UT probable lower E. Asia/Aust.
MUFs:
Cocos Island Region:
No data.
Niue Island Region:
Near predicted monthly values.
Northern Australian Region:
Depressed by 25% during local day.
Depressed by 20% during local night.
Southern Australian and New Zealand Region:
Depressed by 30% during local day.
Depressed by 20% during local night.
Enhanced by 20% after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 25% over the UT day.
Proton event in progress, increased absorption observed.
PCA Event : 10Mev Proton/PCA Event Began 23 01 2012 0545UT and is in progress
Predicted Monthly T index for January: 76
2. FORECAST (24 JANUARY - 26 JANUARY)
Date T index Conditions MUFs
24 Jan 70 Poor Near predicted monthly values/depressed
15 to 30%
25 Jan 40 Poor 20 to 40% below predicted monthly
values
26 Jan 50 Normal-fair 15 to 30% below predicted monthly
values
COMMENT: Significant depressions were observed during 23 January
as the result of enhanced geomagnetic activity observed during
22-23 January. HF conditions are expected to be mostly normal
during the first half of the UT day of 24 January, becoming significantly
degraded in the latter half of the UT day and into the UT day
of 25 January due to anticipated increased geomagnetic activity.
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For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
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