[Ips-dhfpr] IPS Daily HF Prop Report - 24 May 01
rwc
rwc at ips.gov.au
Fri May 25 09:13:21 EST 2001
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 24/2330Z MAY 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (24 MAY)
Date T index Conditions
24 May 121 Normal
Flares Max Fadeout Freq. Sectors
M1/1N 1944UT possible lower East Pacific/
North American
MUFs:
Equatorial PNG Region:
Near predicted monthly values during local day,
Enhanced by 15% during local night.
Northern Australian Region:
Near predicted monthly values during local day,
Depressed by 20% during local night.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values,
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
Spread F observed.
Predicted Monthly T index for May: 117
2. FORECAST (25 MAY - 27 MAY)
Date T index Conditions MUFs
25 May 110 Normal-fair depressed 10 to 15%/near predicted
monthly values
26 May 115 Normal Near predicted monthly values
27 May 105 Normal-fair near predicted monthly values/depressed
10 to 15%
COMMENT: Expected coronal hole induced activity may produce mild
ionospheric depressions 24/25 May. Further degradation possible
27/28 May, mid to high latitudes only, due to recent CME.
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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