[Ips-dhfpr] IPS Daily HF Prop Report - 10 December 06
rwc at ips.gov.au
Mon Dec 11 10:36:38 EST 2006
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 10/2330Z DECEMBER 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (10 DECEMBER)
Date T index Conditions
10 Dec 17 Normal-fair
Equatorial PNG/Niue Region:
Depressed by 15% during local day,
Depressed by 30% during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values,
Depressed by 20% after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Proton event in progress, increased absorption observed.
PCA Event : 10Mev Proton/PCA Event Began 06 12 2006 1625UT and is in progress
Predicted Monthly T index for December: 10
2. FORECAST (11 DECEMBER - 13 DECEMBER)
Date T index Conditions MUFs
11 Dec 10 Normal-fair near predicted monthly values/depressed
10 to 20%
12 Dec 10 Normal-fair near predicted monthly values
13 Dec 10 Normal Near predicted monthly values
COMMENT: IPS HF Communications Warning 35 was issued on 9 December
and is current for interval 9-11 December. Some disturbed periods
and depressions observed for both Northern Aus/Equatorial and
Southern Aus/NZ regions, with otherwise normal HF conditions.
Notable instances of sporadic E also observed for those regions.
Poor ionospheric support for Antarctic regions due to continued
PCA effects. Similar yet improving conditions are expected over
the next 2 days with the proton event expected to finish by 12Dec.
For an explanation of some of the terms in this report, goto
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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