[Ips-dhfpr] IPS Daily HF Prop Report - 17 February 13 issued 2325 UT on 17 Feb 2013
rwc
rwc at ips.gov.au
Mon Feb 18 10:25:49 EST 2013
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 FEBRUARY 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (17 FEBRUARY)
Date T index Conditions
17 Feb 68 Normal
Flares Max Fadeout Freq. Sectors
M1.9 1550UT possible lower South American/
Atlantic
MUFs:
Cocos Island Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values.
Depressed by 20% after local dawn.
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: 79
2. FORECAST (18 FEBRUARY - 20 FEBRUARY)
Date T index Conditions MUFs
18 Feb 80 Normal Near predicted monthly values
19 Feb 80 Normal Near predicted monthly values
20 Feb 80 Normal Near predicted monthly values
COMMENT: HF conditions were normal over the UT day except for
depressions during local night towards equatorial regions and
before dawn in southern regions, both probably caused by geomagnetic
activity from and extended southwards interplanetery magnetic
field (IMF Bz) period. There are 6 relatively small active regions
on the disc, providing moderate ionising EUV flux into the ionosphere.
Expect mostly normal ionospheric conditions for next three days
in the absence of other extended IMF Bz periods. AR1675 issued
an M1.9 flare during the local night and probably still has the
capacity for more M class flares and so short-wave fadeouts are
possible.
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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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