[Ips-dhfpr] IPS Daily HF Prop Report - 21 July 12 issued 2348 UT on 21 Jul 2012
rwc
rwc at ips.gov.au
Sun Jul 22 09:49:00 EST 2012
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/21 JULY 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (21 JULY)
Date T index Conditions
21 Jul 47 Normal-fair
Flares: none.
MUFs:
Cocos Island Region:
Near predicted monthly values during local day.
Depressed by 35% during local night.
Niue Island Region:
Depressed by 25% during local day.
Depressed by 25% during local night.
Northern Australian Region:
Depressed by 20% during local day.
Depressed by 40% during local night.
Southern Australian and New Zealand Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Weak ionospheric support over the UT day.
PCA Event : No event.
Predicted Monthly T index for July: 77
2. FORECAST (22 JULY - 24 JULY)
Date T index Conditions MUFs
22 Jul 45 Normal-fair 20 to 30% below predicted monthly
values
23 Jul 55 Normal-fair Near predicted monthly values/depressed
10 to 20%
24 Jul 55 Normal-fair Near predicted monthly values/depressed
10 to 20%
COMMENT: MUF depressions were observed over most of the Australian
region during the last 24 hours. Periods of Sporadic-E were observed
at times in the Northern region. Current depressed levels are
likely to persist for at least the next day with improvement
thereafter.
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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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