[Ips-dhfpr] IPS Daily HF Prop Report - 04 November 01
rwc
rwc at ips.gov.au
Mon Nov 5 10:27:14 EST 2001
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 04/2330Z NOVEMBER 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (04 NOVEMBER)
Date T index Conditions
04 Nov 189 Normal-fair
Flares Max Fadeout Freq. Sectors
X1.1 1620UT probable all South American/
Atlantic
MUFs:
Equatorial PNG Region:
Near predicted monthly values during local day,
Enhanced by 25% during local night.
Northern Australian Region:
Enhanced by 20-40%.
Southern Australian and New Zealand Region:
Enhanced by 20-40%.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
Complete absorption observed from 18UT.
PCA in progress from 1710UT (protons from X1 flare).
Predicted Monthly T index for November: 109
2. FORECAST (05 NOVEMBER - 07 NOVEMBER)
Date T index Conditions MUFs
05 Nov 165 Normal-Fair Initially 15-20% enhanced, chance
for mild depression late in
UT day for southern region Aus/NZ
only.
06 Nov 100 Fair-Poor Initially midly depressed (southern
region) to 15% enhanced (northern
region), strong depression expected
second half of UT day.
07 Nov 80 Poor-Fair 30 to 50% below predicted monthly
values
COMMENT: Strongly depressed and degraded HF conditions are now
expected from mid 06 Nov for all sites due to overnight X1
flare/CME. A milder degradation for southern region Aus only
may occur before this event due to an earlier much
weaker/slower CME event.
IPS Radio and Space Services | email: asfc at ips.gov.au
PO Box 1386 | WWW: http://www.ips.gov.au/asfc
Haymarket NSW 1240 AUSTRALIA | FTP: ftp://ftp.ips.gov.au/users/asfc/
tel: +61 2 9213 8010 | fax: +61 2 9213 8060
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