[Ips-dhfpr] IPS Daily HF Prop Report - 08 April 01
rwc
rwc at ips.gov.au
Mon Apr 9 09:31:51 EST 2001
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 08/2330Z APRIL 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (08 APRIL)
Date T index Conditions
08 Apr 152 Normal
Flares: none.
MUFs:
Equatorial PNG Region:
Mostly near predicted monthly values,
Enhanced by 30% after local dawn.
Northern Australian Region:
Near predicted monthly values during local day,
Enhanced by 15% during local night.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values,
Depressed by 20% after local dawn.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
Predicted Monthly T index for April: 120
2. FORECAST (09 APRIL - 11 APRIL)
Date T index Conditions MUFs
09 Apr 100 Fair 10 to 20% below predicted monthly
values
10 Apr 140 Normal Near predicted monthly values
11 Apr 150 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. Depression in progress
at mid latitudes following the arrival of a shock associated
with the M5 flare/full halo CME observed on 5 Apr. Further depressed
conditions may be expected on 9 Apr after the anticipated arrival
of a shock associated with the X5 flare and CME observed on 6
Apr.
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
More information about the ips-dhfpr
mailing list