[Ips-dhfpr] IPS Daily HF Prop Report - 15 May 01
rwc
rwc at ips.gov.au
Wed May 16 09:19:14 EST 2001
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 15/2330Z MAY 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (15 MAY)
Date T index Conditions
15 May 91 Fair-normal
Flares Max Fadeout Freq. Sectors
M1/1N 0300UT possible lower E. Asia/Aust.
MUFs:
Equatorial PNG Region:
Enhanced by 15% during local day,
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values during local day,
Depressed by 30% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Depressed by 15% during local night.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
Predicted Monthly T index for May: 117
2. FORECAST (16 MAY - 18 MAY)
Date T index Conditions MUFs
16 May 105 Normal depressed 10 to 15%/near predicted
monthly values
17 May 115 Normal-Fair near predicted monthly values/depressed
10 to 15%
18 May 100 Fair-Normal depressed 10 to 15%/near predicted
monthly values
COMMENT: Mildly depressed MUFs observed yesterday, mostly during
local night hours. There is a chance for a mild degradation in HF
conditions, during second half of UT day 17 May, high latitudes only,
due to a recent flare and possible mass ejection. Also, shortwave fadeouts
may become more frequent in coming days due to the possible return
of a previously active solar region.
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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