[Ips-wsgr] IPS Weekly Solar and Geophysical Report (16 September 05)
rwc
rwc at ips.gov.au
Fri Sep 16 11:21:27 EST 2005
SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT
ISSUED ON 16 SEPTEMBER 2005, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (09 SEPTEMBER - 15 SEPTEMBER)
Date 09 10 11 12 13 14 15
10cm 99 100 110 118 114 117 119
AFr 12 15 53 32 26 13 ( 25)
Aaus 16 22 69 49 27 14 ( 29)
T 24 26 25 6 17 18 9
Solar: Solar flare activity
Geomagnetic: Geomagnetic activity observed for Australian Region.
Frequencies: Australian Ionospheric F2 critical frequencies
09 Sep
Solar: very high, with an X5/2B at 2106UT , an X1/-- at 0300UT , an
M6/1F at 0548UT , an X3/-- at 0959UT , and an X6/2B at 2004UT
Geomagnetic: Quiet to Minor Storm
Frequencies:
Equatorial PNG Region:
Near predicted monthly values during local day,
Depressed by 40% during local night.
Northern Australian Region:
Near predicted monthly values during local day,
Depressed by 20% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Proton event in progress, increased absorption observed.
10 Sep
Solar: high, with an M3.8 at 2300UT , an M1.1 at 0354UT , an M1.2
at 0604UT , an M3.7 at 0614UT , an M1.9 at 0907UT , an X1.2 at 1643UT , an
M4.1 at 1937UT , and an X2.1 at 2211UT
Geomagnetic: Quiet to Minor Storm
Frequencies:
Equatorial PNG Region:
Near predicted monthly values during local day,
Depressed by 30% during local night.
Depressed by 60% after local dawn.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values,
Depressed by 20% after local dawn.
Antarctic Region (Casey/Scott Base):
Proton event in progress, increased absorption observed.
11 Sep
Solar: high, with an M8.9 at 2302UT , an M3.4 at 0235UT , an M3.0
at 1315UT , and an M1.3 at 2042UT
Geomagnetic: Unsettled to Severe Storm Levels
A moderate (54nT) impulse was observed in the IPS magnetometer data at 1123UT on
11 Sep.
Frequencies:
Equatorial PNG Region:
Mostly near predicted monthly values,
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 15% during local night.
Antarctic Region (Casey/Scott Base):
Proton event in progress, increased absorption observed.
12 Sep
Solar: high, with an M1.3 at 0702UT , an M4.5 at 0849UT , an M6.1
at 0904UT , and an M1.5 at 2009UT
Geomagnetic: Unsettled to Major Storm
A weak (24nT) impulse was observed in the IPS magnetometer data at 1436UT on 12
Sep.
Frequencies:
Equatorial PNG Region:
Near predicted monthly values during local day,
Depressed by 25% during local night.
Northern Australian Region:
Near predicted monthly values during local day,
Depressed by 30% during local night.
Depressed by 35% after local dawn.
Southern Australian and New Zealand Region:
Depressed by 25% during local day,
Depressed by 20% during local night.
Depressed by 25% after local dawn.
Antarctic Region (Casey/Scott Base):
Proton event in progress, increased absorption observed.
13 Sep
Solar: high, with an M1.3 at 1122UT , an X1.5 at 1927UT , and an
X1.8 at 2322UT
Geomagnetic: Unsettled to major storm.
A weak (25nT) impulse was observed in the IPS magnetometer data at 0713UT on 13
Sep.
Frequencies:
Equatorial PNG Region:
Depressed by 20% during local day,
Depressed by 30% during local night.
Northern Australian Region:
Depressed by 40% during local day,
Depressed by 30% during local night.
Southern Australian and New Zealand Region:
Depressed by 35% during local day,
Depressed by 40% during local night.
Antarctic Region (Casey/Scott Base):
Less data availabe over the UT day.
Strong degradations observed.
14 Sep
Solar: high, with an M1.1 at 2303UT , an X1.8 at 2322UT , and an
M4.6 at 1039UT
Geomagnetic: Quiet to Active
Frequencies:
Equatorial PNG Region:
Near predicted monthly values at night.
Enhanced 30% during the day.
Northern Australian Region:
Depressed by 20% during local day,
Near predicted monthly values during local night.
Southern Australian and New Zealand Region:
Depressed by 15% during local day,
Depressed by 15% during local night.
Depressed by 20% after local dawn.
Antarctic Region (Casey/Scott Base):
Proton event in progress, increased absorption observed.
15 Sep
Solar: high, with an M1.3 at 0213UT , an X1.2 at 0838UT , and an
M1.0 at 1913UT
Geomagnetic: Quiet to Major Storm
A weak (24nT) impulse was observed in the IPS magnetometer data at 0904UT on 15
Sep.
Frequencies:
Equatorial PNG Region:
Enhanced by 15% during local day,
Near predicted monthly values 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:
Depressed by 20% during local day,
Depressed by 15% during local night.
Depressed by 25% after local dawn.
Antarctic Region (Casey/Scott Base):
Proton event in progress, increased absorption observed.
2. FORECAST (16 SEPTEMBER - 22 SEPTEMBER)
Solar:
Moderate high activity early in week.
Geomagnetic:
active 20 Sep to 21 Sep.
quiet to unsettled on other days.
Frequencies:
briefly depressed after local dawn 20 to 21 Sep
MUFs near predicted monthly values on other days.
PLEASE NOTE:
At this time of the solar cycle, space weather conditions
are frequently determined by short timescale events, not
able to be forecasted a week in advance.
For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Gloassary on Solar Terrestrial Terms.
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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