[Ips-dhfpr] IPS Daily HF Prop Report - 21 April 15 issued 2329 UT on 21 Apr 2015
rwc
rwc at ips.gov.au
Wed Apr 22 09:29:55 EST 2015
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/21 APRIL 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (21 APRIL)
Date T index Conditions
21 Apr 117 Normal
Flares Max Fadeout Freq. Sectors
M1.0 0721UT possible lower Mid East/Indian
M2.2 1042UT possible lower European
M2.2 1157UT possible lower European
M4.0 1545UT possible lower South American/
Atlantic
M2.0 1701UT possible lower South American/
Atlantic
M1.8 2145UT possible lower East Pacific/
North American
M1.2 2202UT possible lower East Pacific/
North American
MUFs:
Cocos Island Region:
Near predicted monthly values.
Niue Island Region:
Enhanced by 15% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Mostly near predicted monthly values.
Southern Australian and New Zealand Region:
Enhanced by 15% during local day.
Near predicted monthly values 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
Mar 99
Apr 90
May 89
2. FORECAST (22 APRIL - 24 APRIL)
Date T index Conditions MUFs
22 Apr 100 Normal-fair Near predicted monthly values/depressed
5 to 20%
23 Apr 105 Normal-fair Near predicted monthly values/depressed
5 to 10%
24 Apr 110 Normal Near predicted monthly values
COMMENT: Mostly normal HF conditions were observed on 21 April
with periods of minor MUF enhancements in Aus/NZ regions. Minor
to moderate MUF depressions may be observed from 22 to 23 April.
Mostly normal HF conditions may be expected on 24 April.
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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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