[Ips-dhfpr] IPS Daily HF Prop Report - 19 December 14 issued 2330 UT on 19 Dec 2014
Regional Warning Centre
rwc at ips.gov.au
Sat Dec 20 10:30:38 EST 2014
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/19 DECEMBER 2014 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (19 DECEMBER)
Date T index Conditions
19 Dec 134 Normal
Flares Max Fadeout Freq. Sectors
M1.3 0944UT possible lower Mid East/Indian
MUFs:
Cocos Island Region:
Near predicted monthly values during local day.
Enhanced by 20% during local night.
Niue Island Region:
Enhanced by 15% during local day.
Enhanced by 20% during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Enhanced by 20% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day.
Enhanced by 20% 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 (20 DECEMBER - 22 DECEMBER)
Date T index Conditions MUFs
20 Dec 120 Normal-fair Near to 15% above predicted
monthly values
21 Dec 80 Fair Near predicted monthly values/depressed
10 to 20%
22 Dec 80 Normal Near predicted monthly values/depressed
10 to 30%
COMMENT: IPS SWF HF Communications Warning 61 was issued on 17
December and is current for 18-20 Dec. IPS Preliminary HF Communications
Warning 63 was issued on 19 December and is current for 21-22
Dec. MUFs were near predicted to enhanced over the UT day 19
December. Isolated cases of sporadic E were observed in the eastern
Australian regions. Near monthly predicted MUFs to slightly enhanced
values are expected today, 20 December. Expect near predicted
values with periods of depressed conditions on 21-22 December
due to an expected 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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