[Ips-dhfpr] IPS Daily HF Prop Report - 28 November 00
Regional Warning Centre
rwc at ips.gov.au
Wed Nov 29 10:24:14 EST 2000
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 28/2330Z NOVEMBER 2000 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (28 NOVEMBER)
Date T index Conditions
28 Nov 137 Normal-fair
Flares: none.
MUFs:
Equatorial PNG Region:
Mostly near predicted monthly values,
Enhanced by 15% after local dawn.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values,
Depressed by 20% after local dawn.
Antarctic Region (Casey/Scott Base):
PCA in progress.
Predicted Monthly T index for November: 133
2. FORECAST (29 NOVEMBER - 01 DECEMBER)
Date T index Conditions MUFs
29 Nov 100 Fair about 20% below predicted monthly
values
30 Nov 120 Normal about 10% below predicted monthly
values
01 Dec 140 Normal near predicted monthly values
COMMENT: IPS HF Communications Warning 81 was issued on 27 November
and is current for interval 28-30 November. Depressed ionospheric
conditions occured late in the UT day on 28 Nov as the anticipated
shock hit late in the afternoon on the 28 Nov. Depressed conditions
are expected early in the UT day on 29 Nov following the enhanced
geomagnetic conditions observed overnight on 28 Nov and the anticipated
arrival of a shock associated with a X4 flare observed on the
26 Nov at 1648UT.
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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