[Ips-dsgr] IPS Daily Report - 15 March 06
rwc
rwc at ips.gov.au
Thu Mar 16 10:16:21 EST 2006
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 15/2330Z MARCH 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 15 MARCH AND FORECAST FOR 16 MARCH - 18 MARCH
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 15 Mar: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 15 Mar: 74/11
1B. SOLAR FORECAST
16 Mar 17 Mar 18 Mar
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 75/13 75/13 75/13
COMMENT: No significant flare activity observed today. Solar
activity is expected to remain at very low levels.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 15 Mar: Quiet to Unsettled
Estimated Indices 15 Mar : A K
Australian Region 8 23322221
Darwin 9 23322222
Learmonth 12 33332331
Culgoora 7 22322220
Camden 11 33322232
Canberra 9 23322231
Hobart 7 23321220
Casey(Ant) 15 3-532321
Observed Regional daily pc3 Indices 15 Mar :
Canberra 19 (Quiet)
Learmonth 2 (Quiet)
Culgoora 2 (Quiet)
Hobart 18 (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 15 Mar : A
Fredericksburg 5
Planetary 8
Observed AFr/Ap Indices 14 Mar : A K
Fredericksburg 2
Planetary 4 0001 2222
2B. MAGNETIC FORECAST
Date Ap Conditions
16 Mar 4 Quiet
17 Mar 4 Quiet
18 Mar 5 Quiet
COMMENT: Solar wind speed increased briefly to about 550 km/s
due to a weak coronal hole wind stream, declining during the
second half of the UT day. Minor polarity fluctuations were observed
in the north-south component of the interplanetary magnetic field
during the increasing phase. The geomagnetic field was predominantly
quiet, with isolated unsettled periods observed at high latitudes
only. Mostly quiet geomagnetic conditions expected next three
days.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
15 Mar Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
16 Mar Normal Normal Normal
17 Mar Normal Normal Normal
18 Mar Normal Normal Normal
COMMENT: Localised daytime variability observed at low latitudes.
Minor disturbances observed at some high latitude sites. Otherwise
HF conditions mostly near normal. Expect similar conditions next
three days.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
15 Mar 17
Observed Australian Regional MUFs
Equatorial PNG/Niue Region:
Variable conditions during local day,
Depressed by 30% during local night.
Northern Australian Region:
Depressed by 15% during local day,
Near predicted monthly values during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 15% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
Predicted Monthly T index for March: 16
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
16 Mar 10 near predicted monthly values
17 Mar 5 near predicted monthly values
18 Mar 10 Near predicted monthly values
COMMENT: Localised daytime variability observed Equatorial/PNG/N
Aus regions. Persistent spread-F observed at some high latitude
sites. Expect continuing variable conditions in Equatorial/PNG
region, with conditions mostly normal in Aus/NZ/Antarctic regions.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 14 Mar
Daily Proton Fluence >1 MeV: 3.3E+05
Daily Proton Fluence >10 MeV: 1.6E+04
Daily Electron Fluence >2 MeV: 6.20E+06 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 1%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A1.0
ACE Satellite Solar Wind Day Averaged Data for 14 Mar
Speed: 364 km/sec Density: 3.9 p/cc Temp: 35000 K Bz: 2 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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PO Box 1386 WWW: http://www.ips.gov.au
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