[Ips-dsgr] IPS Daily Report - 14 January 03
rwc
rwc at ips.gov.au
Wed Jan 15 10:40:36 EST 2003
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 14/2330Z JANUARY 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 14 JANUARY AND FORECAST FOR 15 JANUARY - 17 JANUARY
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 14 Jan: Low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 14 Jan: 164/118
1B. SOLAR FORECAST
15 Jan 16 Jan 17 Jan
Activity Low Low Low to moderate
Fadeouts None expected None expected Possible
10.7cm/SSN 160/114 160/114 155/109
COMMENT: The major event today was a C6 level flare at about
0630UT, which was not optically correlated. The most recently
active solar region, region 242, has now rotated off the west
limb. Limb activity has been observed in the vicinity of some
newly arriving regions. There remains a minor possibility of
isolated M-class activity today.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 14 Jan: Quiet to Active
Estimated Indices 14 Jan : A K
Australian Region 11 3332 3223
Darwin 13 3332 ----
Townsville 11 3332 2234
Learmonth 8 ---- 3212
Canberra 7 2--- ----
Hobart 17 24-- ----
Casey(Ant) 11 3--3 3222
Observed Regional daily pc3 Indices 14 JAN :
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Canberra 6 (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 14 Jan : A
Fredericksburg 8
Planetary 10
Observed AFr/Ap Indices 13 Jan : A K
Fredericksburg 5
Planetary 8 3212 3322
2B. MAGNETIC FORECAST
Date Ap Conditions
15 Jan 10 Quiet to Unsettled
16 Jan 8 Quiet to Unsettled
17 Jan 10 Quiet to Unsettled
COMMENT: A brief period of IMF Bz polarity fluctuatiion occurred
between about 04-06UT. This was followed one hour later by a
period of unsettled to active geomagnetic conditions at high
latitudes. A south polar coronal hole is approaching central
meridian, but does not appear extensive in area or latitude.
Recurrence suggests the possibility of unsettled to active
conditions early next week.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
14 Jan Normal Normal Fair-normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
15 Jan Normal Normal Normal-Fair
16 Jan Normal Normal Normal-Fair
17 Jan Normal Normal Normal-Fair
COMMENT: Low latitude MUF's depressed briefly after local dawn.
Persistent and sometimes intense sporadic E observed at mid to
high latitudes local day/evening. Generally good HF conditions
expected today, with periods of disturbance at high latitudes.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
14 Jan 127
Observed Australian Regional MUFs
Equatorial PNG Region:
Enhanced by 15% during local day,
Near predicted monthly values during local night.
Northern Australian Region:
Mostly near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Slightly below predicted monthly values.
Predicted Monthly T index for January: 89
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
15 Jan 140 10 to 20% above predicted monthly values
16 Jan 140 10 to 20% above predicted monthly values
17 Jan 130 about 10% above predicted monthly values
COMMENT: Generally good HF conditions expected today. Periods
of disturbance possible during local day/evening in
S Aus/NZ/Antarctic regions due to transient intense sporadic
E layer.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 13 Jan
Daily Proton Fluence >1 MeV: 5.0E+04
Daily Proton Fluence >10 MeV: 1.3E+04
Daily Electron Fluence >2 MeV: 2.60E+06 (normal)
X-ray background: B7.1
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
ACE Satellite Solar Wind Day Averaged Data for 13 Jan
Speed: 399 km/sec Density: 3.4 p/cc Temp: 55400 K Bz: 6 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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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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