[Ips-dhfpr] IPS Daily HF Prop Report - 22 December 02
rwc
rwc at ips.gov.au
Mon Dec 23 09:56:31 EST 2002
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 22/2330Z DECEMBER 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (22 DECEMBER)
Date T index Conditions
22 Dec 155 Normal-fair
Flares Max Fadeout Freq. Sectors
M1.1/2F 0230UT possible lower E. Asia/Aust.
MUFs:
Equatorial PNG Region:
Near predicted monthly values during local day,
Enhanced by 25% during local night.
Northern Australian Region:
Enhanced by 20% during local day,
Enhanced by 35% during local night.
Southern Australian and New Zealand Region:
Enhanced by 20% during local day,
Enhanced by 30% during local night.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
PCA Event : No event.
Predicted Monthly T index for December: 90
2. FORECAST (23 DECEMBER - 25 DECEMBER)
Date T index Conditions MUFs
23 Dec 135 Fair 10 to 15% above predicted monthly
values
24 Dec 120 Normal 10 to 15% above predicted monthly
values
25 Dec 120 Normal 10 to 15% above predicted monthly
values
COMMENT: IPS HF Communications Warning 79 was issued on 21 December
and is current for interval 22-23 December. So far coronal mass
ejection induced geomagnetic activity has been less than expected.
Depressed MUFs no longer expected for today, some mild depressions
may be experienced southern Aus/NZ region. It is possible another
shock may arrive today yielding degraded conditions late 23/24
Dec.
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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