[Ips-dhfpr] IPS Daily HF Prop Report - 20 October 09
rwc at ips.gov.au
Wed Oct 21 10:44:14 EST 2009
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 20/2330Z OCTOBER 2009 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (20 OCTOBER)
Date T index Conditions
20 Oct -1 Normal
Cocos Island/Niue Island Region:
Depressed by 25% during local day,
Depressed by 20% during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 15% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
PCA Event : No event.
Predicted Monthly T index for October: 1
2. FORECAST (21 OCTOBER - 23 OCTOBER)
Date T index Conditions MUFs
21 Oct 0 Normal near predicted monthly values/depressed
10 to 20%
22 Oct 0 Normal near predicted monthly values/depressed
10 to 20%
23 Oct 0 Normal near predicted monthly values/depressed
5 to 10%
COMMENT: Mostly normal HF conditions observed over the last 24
hours. Depressed conditions again during local day and night for
Equatorial regions and during local day for Northern AUS regions.
Enhanced conditions again for Southern AUS/NZ regions during
local night. Normal ionospheric support for high latitudes. Similar
conditions are expected for the next 3 days, with possible depressed
periods for low latitudes and enhancements during local night
for mid latitudes. Possible meteor shower activity in the next
24-48 hours could result in enhanced sporadic E.
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
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp.ips.gov.au
tel: +61 2 9213 8010 fax: +61 2 9213 8060
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