[Ips-dhfpr] IPS Daily HF Prop Report - 07 April 01
rwc
rwc at ips.gov.au
Sun Apr 8 09:38:51 EST 2001
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 07/2330Z APRIL 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (07 APRIL)
Date T index Conditions
07 Apr 155 Normal
Flares: none.
MUFs:
Equatorial PNG and Northern Australian Regions:
Mostly near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 20% during local night.
Antarctic Region (Casey/Scott Base):
Enhanced by 25% over the UT day.
Predicted Monthly T index for April: 120
2. FORECAST (08 APRIL - 10 APRIL)
Date T index Conditions MUFs
08 Apr 120 Normal-fair depressed 10 to 20%/near predicted
monthly values
09 Apr 100 Fair 10 to 20% below predicted monthly
values
10 Apr 140 Normal Near predicted monthly values
COMMENT: IPS HF Communications Warning 20 was issued on 6 April
and is current for interval 8-10 April. Shortwave fadeouts expected
on daylight HF circuits. Polar region HF comms still affected
by PCA with proton fluxes still enhanced. Depressed conditions
for 8 and 9 April are expected following the arrival of two shocks
associated with M5 and X5 flares and CMEs observed on the 5 and
6 April from region 9415.
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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