[Ips-dhfpr] SWS Daily HF Prop Report - 22 February 19 issued 2330 UT on 22 Feb 2019 [SEC=UNCLASSIFIED]
Regional Warning Centre
rwc at ips.gov.au
Sat Feb 23 10:30:21 EST 2019
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/22 FEBRUARY 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (22 FEBRUARY)
Date T index Conditions
22 Feb -12 Normal
Flares: none.
MUFs:
Cocos Island Region:
Near predicted monthly values during local day.
Enhanced by 15% during local night.
Niue Island Region:
Mostly near predicted monthly values.
Northern Australian Region:
Near predicted monthly values during local day.
Enhanced by 40% during local night.
Southern Australian Region:
Near predicted monthly values.
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 (23 FEBRUARY - 25 FEBRUARY)
Date T index Conditions MUFs
23 Feb -15 Normal Near predicted monthly values
24 Feb -15 Normal Near predicted monthly values
25 Feb -15 Normal Near predicted monthly values
COMMENT: On UT day 22 February, MUFs were mostly near monthly
predicted levels over the Australian region. In the Cocos Island
and Northern Australian regions, mild to moderate enhancements
were observed during the local night. The Antarctic region experienced
minor depressions over the UT day. Sporadic E layers were seen
across the region. During the next three UT days, 23-25 February,
MUFs are expected to be mostly near monthly predicted levels.
However, mild to moderate depressions are possible due to continued
very low levels of ionising radiation from the Sun.
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For an explanation of some of the terms in this report, go to
http://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
Space Weather Services email: asfc at bom.gov.au
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