[Ips-dhfpr] IPS Daily HF Prop Report - 01 June 03
rwc at ips.gov.au
Mon Jun 2 09:13:56 EST 2003
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 01/2330Z JUNE 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (01 JUNE)
Date T index Conditions
01 Jun 57 Fair-normal
Flares Max Fadeout Freq. Sectors
M1.4 0314UT possible lower E. Asia/Aust.
M1.0 0712UT possible lower Mid East/Indian
M1.0 1250UT possible lower European
M1.6 1652UT possible lower South American/
M1.1 2105UT possible lower East Pacific/
Equatorial PNG Region:
Enhanced by 15% during local day,
Enhanced by 70% during local night.
Northern Australian Region:
Near predicted monthly values during local day,
Depressed by 15% during local night.
Southern Australian and New Zealand Region:
Initially depressed 15-20% then recovering as day
Depressed by 20% during local night.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
Spread F and some absorption observed.
PCA Event : Began at 0505UT 31/05, Ended at 1505UT 31/05
Predicted Monthly T index for June: 67
2. FORECAST (02 JUNE - 04 JUNE)
Date T index Conditions MUFs
02 Jun 70 Normal-fair Near predicted monthly values
03 Jun 50 Fair near predicted monthly values/depressed
10 to 20%
04 Jun 45 Fair depressed 10 to 20%/near predicted
COMMENT: Ionospheric MUF support level and comms conditions expected
to be initially normal today. However, a trend of deteriorating
conditions is expected late 02 Jun/03 Jun for mid to high latitudes
(southern Aus/NZ region). Northern Aus region MUFs expected to
remain mostly near monthly values. The recent X class flare producing
solar region is about to depart the solar disk. However, a new active
solar region has appeared on the north-east limb of the Sun and
further flare activity looks llikely in coming days. This new region
conributed 3 of the above low level M class flares.
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Haymarket NSW 1240 AUSTRALIA | FTP: ftp://ftp.ips.gov.au
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