[Ips-dhfpr] IPS Daily HF Prop Report - 28 June 03
rwc at ips.gov.au
Sun Jun 29 08:33:36 EST 2003
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 28/2330Z JUNE 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (28 JUNE)
Date T index Conditions
28 Jun 85 Normal-fair
Equatorial PNG Region:
Near predicted monthly values during local day,
Enhanced by 75% during local night.
Northern Australian Region:
Mostly near predicted monthly values,
Enhanced by 20% after local dawn.
Southern Australian and New Zealand Region:
Depressed 15% to near predicted monthly values.
Spread F observed local night at Hobart.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
Spread F observed.
PCA Event : No event.
Predicted Monthly T index for June: 68
2. FORECAST (29 JUNE - 01 JULY)
Date T index Conditions MUFs
29 Jun 70 Fair-Normal depressed 10 to 15%/near predicted
30 Jun 70 Fair-Normal depressed 10 to 15%/near predicted
01 Jul 70 Fair-Normal depressed 10 to 15%/near predicted
COMMENT: IPS HF Communications Warning 50 was issued on 26 June
and is current for interval 27-29 June. Degraded HF comms quality
observed local night hours at some southern region sites last
night. Mild depressions possible after local dawn this morning
southern Aus/NZ region. A generally degraded interval is over
the next few days for southern Aus/NZ region due to solar coronal
hole high speed wind stream. Northern Aus region MUFs expected
to again be near to 15% above predicted monthly values.
IPS Radio and Space Services | email: asfc at ips.gov.au
PO Box 1386 | WWW: http://www.ips.gov.au
Haymarket NSW 1240 AUSTRALIA | FTP: ftp://ftp.ips.gov.au
tel: +61 2 9213 8010 | fax: +61 2 9213 8060
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