[Ips-dhfpr] SWS Daily HF Prop Report - 10 September 17 issued 2352 UT on 10 Sep 2017 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Mon Sep 11 09:52:52 EST 2017
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/10 SEPTEMBER 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (10 SEPTEMBER)
Date T index Conditions
10 Sep 14 Normal-fair
Flares Max Fadeout Freq. Sectors
C9.0 09/2331UT probable lower West Pacific
X8.3 1606UT probable all South American/
Atlantic
MUFs:
Cocos Island Region:
No data available.
Niue Island Region:
Enhanced by 65% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Mostly near predicted monthly values.
Enhanced by 20% after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Proton event in progress, increased absorption observed.
PCA Event : 10MeV Proton/PCA Event Began 11 09 2017 0235UT and is in progress
and, 100MeV Proton/PCA Event Began 11 09 2017 0215UT and is in progress
Monthly T index:
Month T index
Aug 10
Sep 5
Oct 4
2. FORECAST (11 SEPTEMBER - 13 SEPTEMBER)
Date T index Conditions MUFs
11 Sep 5 Normal-fair Near predicted monthly values
12 Sep 5 Normal-fair Near predicted monthly values
13 Sep 5 Normal-fair Near predicted monthly values
COMMENT: Propagation conditions has improved slightly over the
last 24 hours. Disturbed periods observed at times for low to
Mid latitudes. High latitudes experienced poor HF conditions
most likely due to PCA effects after increased proton levels.
Sporadic E and Spread F were also observed at times across the
Australian region which may have contributed to degraded HF conditions.
Similar, yet improving conditions may be expected to prevail
over the next 24 hours. Mild depression may be observed over
the next few days due to declining solar activity.
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For an explanation of some of the terms in this report, go to
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Glossary on Solar Terrestrial Terms.
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