[Ips-dhfpr] IPS Daily HF Prop Report - 23 October 10
rwc
rwc at ips.gov.au
Sun Oct 24 10:55:14 EST 2010
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 23/2330Z OCTOBER 2010 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (23 OCTOBER)
Date T index Conditions
23 Oct -2 Normal
Flares: none.
MUFs:
Cocos Island Region:
Near predicted monthly values during local day,
Depressed by 25% during local night.
Niue Island Region:
Near predicted monthly values during local day,
Depressed by 20% during local night.
Depressed by 25% after local dawn.
Northern Australian Region:
Mostly near predicted monthly values,
Depressed by 20% after local dawn.
Southern Australian and New Zealand Region:
Depressed by 20% during local day,
Near predicted monthly values during local night.
Depressed by 35% after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 20% over the UT day.
PCA Event : No event.
Predicted Monthly T index for October: 30
2. FORECAST (24 OCTOBER - 26 OCTOBER)
Date T index Conditions MUFs
24 Oct -10 Normal depressed 10 to 30%/near predicted
monthly values
25 Oct 0 Normal depressed 10 to 30%/near predicted
monthly values
26 Oct 0 Normal depressed 10 to 30%/near predicted
monthly values
COMMENT: IPS HF Communications Warning 21 was issued on 23 October
and is current for interval 24 October only. Depressed MUFs of
10%-20% observed during local night and dawn for Equatorial regions
over the last 24 hours. Northern AUS as well as Southern AUS/NZ
and Antarctic regions had similar level MUF depressions during
local day. Depressed MUFs of 10%-30% are expected for the next
3 days for the Australian/NZ region with possible disturbed conditions
for Southern AUS/NZ and Antarctic regions due to the increased
geomagnetic activity from the current geoeffective coronal hole.
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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.
IPS Radio and Space Services email: asfc at ips.gov.au
PO Box 1386 WWW: http://www.ips.gov.au
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