[Ips-dhfpr] IPS Daily HF Prop Report - 09 February 11
rwc
rwc at ips.gov.au
Thu Feb 10 10:19:05 EST 2011
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 09/2330Z FEBRUARY 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (09 FEBRUARY)
Date T index Conditions
09 Feb 40 Normal
Flares Max Fadeout Freq. Sectors
M1/SF 0131UT possible lower E. Asia/Aust.
MUFs:
Cocos Island Region:
Mostly near predicted monthly values,
Enhanced by 25% after local dawn.
Niue Island Region:
Enhanced by 15% during local day,
Enhanced by 20% during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
PCA Event : No event.
Predicted Monthly T index for February: 38
2. FORECAST (10 FEBRUARY - 12 FEBRUARY)
Date T index Conditions MUFs
10 Feb 35 Normal near predicted monthly values
11 Feb 20 Normal near predicted monthly values/depressed
10 to 20%
12 Feb 10 Normal about 20% below predicted monthly
values
COMMENT: The regional ionosphere was mostly near average levels
at mid latitudes. Near equatorial stations were again highly
variable with large daytime enhancements. MUF levels have been
helped by increased EUV ionising radiation from AR1153 and several
new small regions. MUFs may be slightly suppressed on the 11-12th
Feb (UT) as a small recurrent coronal hole increases 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.
IPS Radio and Space Services email: asfc at ips.gov.au
PO Box 1386 WWW: http://www.ips.gov.au
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