[Ips-dsgr] IPS Daily Report - 29 July 01
rwc
rwc at ips.gov.au
Mon Jul 30 09:16:09 EST 2001
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 29/2330Z JULY 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 29 JULY AND FORECAST FOR 30 JULY - 01 AUGUST
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 29 Jul: Low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 29 Jul: 117/69
GOES satellite data for 28 Jul
Daily Proton Fluence >1 MeV: 1.2E+05
Daily Proton Fluence >10 MeV: 1.1E+04
Daily Electron Fluence >2 MeV: 6.50E+07 (normal)
X-ray background: B5.9
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
1B. SOLAR FORECAST
30 Jul 31 Jul 01 Aug
Activity Low Low Low
Fadeouts None expected None expected None expected
10.7cm/SSN 120/72 120/72 120/72
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 29 Jul: Quiet
Estimated Indices 29 Jul : A K
Australian Region 4 1221 2101
Darwin 3 1211 1110
Townsville 1 0110 1102
Learmonth 5 2221 2212
Canberra 2 1120 2001
Hobart 3 0221 2001
Observed Regional daily pc3 Indices 29 JUL :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Canberra 0 (Quiet)
Hobart 0 (Quiet)
Pc3 pulsations are high frequency (10-45 second period) variations
of the Earths magnetic field. Daily pc3 indices are the daily sum
of 20 minute pc3 indices for that station.
Estimated AFr/Ap Indices 29 Jul : A
Fredericksburg 8
Planetary 7
Observed AFr/Ap Indices 28 Jul : A K
Fredericksburg 2
Planetary 5 2002 2222
2B. MAGNETIC FORECAST
Date Ap Conditions
30 Jul 7 Quiet
31 Jul 6 Quiet
01 Aug 10 Quiet to Unsettled
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
29 Jul Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
30 Jul Normal Normal Normal
31 Jul Normal Normal Normal
01 Aug Normal Normal Normal-Fair
COMMENT: Slightly lower than normal MUFs may be experieneced
at some high latitudes sites early in the UT day today.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
29 Jul 97
Observed Australian Regional MUFs
Equatorial PNG Region:
Near predicted monthly values.
Northern Australian Region:
Depressed by 15% during local day,
Depressed by 30% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
Some spread F observed.
Predicted Monthly T index for July: 115
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
30 Jul 110 Near predicted monthly values
31 Jul 115 Near predicted monthly values
01 Aug 115 Near predicted monthly values
COMMENT: Mildly degraded conditions observed local night hours.
Mild depressions possible today at some southern regions sites.
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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