[Ips-dhfpr] IPS Daily HF Prop Report - 23 June 07
rwc
rwc at ips.gov.au
Sun Jun 24 09:50:55 EST 2007
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 23/2330Z JUNE 2007 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (23 JUNE)
Date T index Conditions
23 Jun 5 Normal
Flares: none.
MUFs:
Equatorial PNG/Niue Region:
Near predicted monthly values during local day,
Depressed by 15% during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Mostly near predicted monthly values.
Degraded conditions observed at times due to
Sporadic-E and/or Spread-F conditions and/or
a weak winter solar mininum ionosphere.
PCA Event : No event.
Predicted Monthly T index for June: 9
2. FORECAST (24 JUNE - 26 JUNE)
Date T index Conditions MUFs
24 Jun 5 Normal near predicted monthly values/depressed
5 to 10%
25 Jun 5 Normal near predicted monthly values/depressed
5 to 10%
26 Jun 5 Normal near predicted monthly values/depressed
5 to 10%
COMMENT: Sporadic-E and/or Spread-F conditions were observed
at times at most Aus/NZ stations during the past 24 hours. These
conditions may have degraded communications, otherwise mostly
normal conditions were observed for the Aus/NZ region. A weak
winter solar minimum ionosphere also degraded conditions for
high latitudes at times. Slight depressions are possible at times
over the next few days otherwise mostly normal conditions are
expected. Sporadic-E and/or Spread-F conditions may degrade communications
at times during 24 June. A weak winter solar minimum ionosphere
may also degrade conditions for high latitudes at times.
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For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
IPS Radio and Space Services email: asfc at ips.gov.au
PO Box 1386 WWW: http://www.ips.gov.au
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp.ips.gov.au
tel: +61 2 9213 8010 fax: +61 2 9213 8060
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