[Ips-dhfpr] SWS Daily HF Prop Report - 07 February 19 issued 2330 UT on 07 Feb 2019 [SEC=UNCLASSIFIED]
Regional Warning Centre
rwc at ips.gov.au
Fri Feb 8 10:30:21 EST 2019
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/07 FEBRUARY 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (07 FEBRUARY)
Date T index Conditions
07 Feb -21 Normal-fair
Flares: none.
MUFs:
Cocos Island Region:
Depressed by 25% during local day.
Near predicted monthly values during local night.
Niue Island Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Depressed by 25% during local day.
Near predicted monthly values during local night.
Southern Australian Region:
Depressed by 15% during local day.
Depressed by 15% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 15% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Jan -27
Feb -12
Mar -13
2. FORECAST (08 FEBRUARY - 10 FEBRUARY)
Date T index Conditions MUFs
08 Feb -20 Normal-fair Near predicted monthly values/depressed
10 to 25%
09 Feb -20 Normal-fair Near predicted monthly values/depressed
10 to 25%
10 Feb -15 Normal-fair Near predicted monthly values/depressed
10 to 20%
COMMENT: On UT day 07 February, MUFs were near monthly predicted
levels to mildly depressed across most parts of Australian/NZ
regions. Minor MUF depressions were observed in the Antarctic
region too. Strong sporadic E layers were also observed. Minor
to moderate MUF depressions and degradations in HF conditions
may be observed in the Aus/NZ regions for the next three days
(UT days 08 to 10 February) due to continued very low levels
of ionising radiation from the Sun and possible enhancements
in geomagnetic activity levels through this period.
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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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