[Ips-dhfpr] IPS Daily HF Prop Report - 23 July 02
rwc
rwc at ips.gov.au
Wed Jul 24 09:56:46 EST 2002
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 23/2330Z JULY 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (23 JULY)
Date T index Conditions
23 Jul 104 Normal
Flares Max Fadeout Freq. Sectors
X4/2B 0035UT probable all West Pacific
MUFs:
Equatorial PNG Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Proton event in progress, increased absorption observed.
PCA Event : 10Mev Proton/PCA Event Began 22 07 2002 0715UT and is in progress
Predicted Monthly T index for July: 108
2. FORECAST (24 JULY - 26 JULY)
Date T index Conditions MUFs
24 Jul 115 Normal Near predicted monthly values
25 Jul 75 Fair-poor near predicted monthly values/depressed
15 to 30%
26 Jul 90 Fair depressed 10 to 20%/near predicted
monthly values
COMMENT: IPS HF Communications Warning 32 was issued on 23 July
and is current for interval 23-25 July (SWFs) . Degraded HF conditions
possible for high latitudes for 24 July due to absorbtion from
PCA event. Degraded HF conditions again expected for 25-26 July
for all latitudes due to anticipated increased geomagnetic activity.
Shortwave fadeouts possible on daylight HF circuits due to active
solar regions.
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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