[Ips-dhfpr] IPS Daily HF Prop Report - 17 December 14 issued 2343 UT on 17 Dec 2014
rwc
rwc at ips.gov.au
Thu Dec 18 10:43:44 EST 2014
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 DECEMBER 2014 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (17 DECEMBER)
Date T index Conditions
17 Dec 125 Normal
Flares Max Fadeout Freq. Sectors
M1.5 0110UT possible lower West Pacific
M1.1 0151UT possible lower West Pacific
M8.7 0453UT probable lower E. Asia/Aust.
M1.4 1902UT possible lower East Pacific/
North American
MUFs:
Cocos Island Region:
Near predicted monthly values during local day.
Enhanced by 30% during local night.
Niue Island Region:
Enhanced by 30% during local day.
Near predicted monthly values 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.
Monthly T index:
Month T index
Nov 113
Dec 87
Jan 87
2. FORECAST (18 DECEMBER - 20 DECEMBER)
Date T index Conditions MUFs
18 Dec 120 Normal Near to 15% above predicted
monthly values
19 Dec 120 Normal-fair Near to 15% above predicted
monthly values
20 Dec 80 Normal-fair Near predicted monthly values/depressed
10 to 20%
COMMENT: IPS SWF HF Communications Warning 61 was issued on 17
December and is current for 18-20 Dec. MUFs were near predicted
to enhanced over the UT day 17 December. Isolated cases of sporadic
E were observed in the eastern Australian regions. Near monthly
predicted MUFs to slightly enhanced values are expected for the
next 2 days. Expect near predicted values with periods of depressed
conditions on 20 December due an increase in 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.
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