[Ips-wsgr] IPS Weekly Solar and Geophysical Report (06 February 09)
rwc
rwc at ips.gov.au
Fri Feb 6 12:52:05 EST 2009
SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT
ISSUED ON 06 FEBRUARY 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (30 JANUARY - 05 FEBRUARY)
Date 30 31 01 02 03 04 05
10cm 69 69 70 69 69 70 70
AFr 3 4 1 0 2 10 ( 7)
Aaus 4 10 3 3 6 13 ( 7)
T -24 -13 -22 -25 -19 5 -8
Solar: Solar flare activity
Geomagnetic: Geomagnetic activity observed for Australian region.
Frequencies: Australian ionospheric F2 critical frequencies
30 Jan
Solar: Very low
Geomagnetic: Quiet
Frequencies:
Equatorial PNG/Niue Region:
Depressed by 10% during local day.
Depressed by 30% during local night.
Northern Australian Region:
Depressed by 15% during local day.
Depressed by 20% during local night.
Southern Australian and New Zealand Region:
Depressed by 15% during local day.
Depressed by 20% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Mostly near predicted monthly values over the UT day.
31 Jan
Solar: Very low
Geomagnetic: Quiet to unsettled
Frequencies:
Equatorial PNG/Niue Region:
Depressed by 15% during local day.
Depressed by 30% during local night.
Northern Australian Region:
Mostly near predicted monthly values, some minor
depressions, particularly during local night.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values, some minor
depressions, particularly during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day
with some periods of slight depressions.
01 Feb
Solar: Very low
Geomagnetic: Quiet
Frequencies:
Equatorial PNG/Niue Region:
Depressed by 15% during local day.
Depressed by 30% during local night.
Depressed by 40% after local dawn.
Northern Australian Region:
Depressed by 15% during local day.
Depressed by 15% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day.
Depressed by 20% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
02 Feb
Solar: Very low
Geomagnetic: Quiet
Frequencies:
Equatorial PNG/Niue Region:
Depressed to 40% 00-13 UT then near predicted monthly
values at Niue; sporadic E 10-17 UT. No data for Vanimo.
Northern Australian Region:
Depressions to 50% at Darwin. Depressions to 50% at
Townsville 00-17 UT. Depressions to 40% 11-23 UT at
Cocos Is. Sporadic E mostly evening and night.
Southern Australian and New Zealand Region:
Depressions to 35% 00-18 UT Brisbane and Norfolk Is.
At other stations, depressions to 30% 07-15 UT.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values with depressions to 40%
12-19 UT.
03 Feb
Solar: Very low
Geomagnetic: Quiet to unsettled
Frequencies:
Equatorial PNG/Niue Region:
Niue frequencies were depressed to 30% 04-06 and 10-17
UT. No data for Vanimo.
Northern Australian Region:
Depressions to 35% until around 18 UT, then near
predicted at Cocos Is. and Townsville. Frequencies
depressed to 40% at Darwin.
Southern Australian and New Zealand Region:
Lower latitude stations depressed to 30% 00-07 and
11-18 UT. Higher latitude stations depressed to 30%
08-15 UT.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values. Depressions to 30% at
Casey 15-17 UT.
04 Feb
Solar: Very low
Geomagnetic: Quiet to unsettled. Unsettled with active to minor
storm periods at high latitudes.
Frequencies:
Equatorial PNG/Niue Region:
Near predicted to enhanced at Niue. Near predicted to
20% depressed at Vanimo with sporadic E 01-13 UT.
Northern Australian Region:
Mostly near predicted monthly values. Depressions to
30% observed at times at Darwin and Cocos Is. 06-13 UT.
Southern Australian and New Zealand Region:
Lower latitude stations experienced near predicted to
enhanced MUFs. MUFs at higher latitudes were near
predicted with depressions to 30%, mostly 11-20 UT.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted to 25% depressed.
05 Feb
Solar: Very low
Geomagnetic: Quiet to unsettled. Isolated active periods early
in the last 24 hours at high latitudes.
Frequencies:
Equatorial PNG/Niue Region:
Niue MUFs were near predicted to 30% depressed. Vanimo
MUFs were near predicted with enhancements 11-19 UT.
Some night spread F observed.
Northern Australian Region:
Darwin MUFs were mostly near predicted to enhanced
with 35% depressions 07-08 UT. Cocos Is. MUFs were
depressed 20-50% and Townsville MUFs were near
predicted with depressions to 35% 00-08 UT. Night
spread F observed.
Southern Australian and New Zealand Region:
Near predicted monthly values to 30% depressed. Night
spread F observed. Sporadic E observed at stations
between 00-20 UT, obscuring the F region at times.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted to 25% depressed.
2. FORECAST (06 FEBRUARY - 12 FEBRUARY)
Solar: Low
Geomagnetic: Quiet to unsettled conditions. Possible active periods
on 11 Feb.
Frequencies: MUFs near predicted monthly values to 30% depressed.
For an explanation of some of the terms in this report, go to
http://www.ips.gov.au/1/2/1.
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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