[Ips-dhfpr] IPS Daily HF Prop Report - 17 May 13 issued 2330 UT on 17 May 2013
Regional Warning Centre
rwc at ips.gov.au
Sat May 18 09:30:21 EST 2013
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 MAY 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (17 MAY)
Date T index Conditions
17 May 90 Normal
Flares Max Fadeout Freq. Sectors
M3/-- 0857UT possible lower Mid East/Indian
MUFs:
Cocos Island Region:
Enhanced by 20% during local day.
Near predicted monthly values during local night.
Niue Island Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Northern Australian Region:
Mostly near predicted monthly values.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 15% over the UT day.
PCA Event : No event.
Predicted Monthly T index for May: 69
2. FORECAST (18 MAY - 20 MAY)
Date T index Conditions MUFs
18 May 95 Normal Near to 15% above predicted
monthly values
19 May 70 Fair-poor Near predicted monthly values
20 May 50 Normal Near predicted monthly values
COMMENT: Mostly normal ionospheric support observed over the
AUS/NZ region for the last 24 hours. A PCA event is in progress
affecting HF communications at high latitudes. MUFs expected
to be mostly near predicted monthly values during the day 18-May,
with a chance of depressed periods for Southern AUS/NZ regions
overnight 18-May and into 19-May. Short wave fadeouts possible
with a chance of isolated M and X flares from solar active regions.
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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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