[Ips-wsgr] IPS Weekly Solar and Geophysical Report (20 September 13) issued 0355 UT on 20 Sep 2013
rwc
rwc at ips.gov.au
Fri Sep 20 13:55:49 EST 2013
SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT
ISSUED ON 20 SEPTEMBER 2013, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (13 SEPTEMBER - 19 SEPTEMBER)
Date 13 14 15 16 17 18 19
10cm 92 93 93 95 99 104 108
AFr 10 6 3 6 8 6 ( 10)
Aaus 8 3 0 2 7 4 ( 8)
T 74 62 60 61 66 65 74
Solar: Solar flare activity
Geomagnetic: Geomagnetic activity observed for Australian region.
Frequencies: Australian ionospheric F2 critical frequencies
13 Sep
Solar: very low
Geomagnetic: Quiet to active
Frequencies:
Cocos Island Region:
Near predicted monthly values. Depressed 20-35%
15-19, 23 UT.
Niue Island Region:
Enhanced by 30-45% 00-10 UT. Depressed 20-35%
13-17 UT. Mostly near predicted monthly values at
other times.
Northern Australian Region:
Near predicted monthly values. Enhanced at Darwin
25-35% 08-11, 15-16 UT, and 60-85% 12-14 UT.
Southern Australian and New Zealand Region:
Near predicted monthly values. Some night spread F
at Hobart and Perth.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values to 20% depressed.
14 Sep
Solar: very low
Geomagnetic: Quiet
Frequencies:
Cocos Island Region:
Enhanced 20-40% 07-13 UT. Depressed 20-30% 15-23
UT. Near predicted monthly values at other times.
Niue Island Region:
Near predicted monthly values to 15% depressed.
Depressed 35-50% 14-17 UT.
Northern Australian Region:
Near predicted monthly values to 15% depressed. Depressed
to 20% 04-08 UT, 20-40% 14-18, 21 UT at Darwin.
Southern Australian and New Zealand Region:
Near predicted monthly values. Night spread F at Hobart
and pre-dawn at Perth.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values to 30% depressed.
15 Sep
Solar: very low
Geomagnetic: Quiet
Frequencies:
Cocos Island Region:
Enhanced 25-40% 08-13 UT. Depressed 20-25% 20-23
UT. Near predicted monthly values at other times.
Niue Island Region:
Depressed 35-40% 12-17 UT. Near predicted monthly
values at other times.
Northern Australian Region:
Depressed by 15-30% 06-08, 13-21, 23 UT at Darwin and
04-06, 14-17, 23 UT at Townsville. Near predicted
monthly values at other times.
Southern Australian and New Zealand Region:
Near predicted monthly values to 15% depressed. Night
spread F at Hobart.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Mostly near predicted monthly values.
16 Sep
Solar: very low
Geomagnetic: Quiet
Frequencies:
Cocos Island Region:
Depressed 5-35% for most of the day.
Niue Island Region:
Depressed 15-30% during 00-04, 12-17 and 20-22 UT.
Near predicted monthly values at other times.
Northern Australian Region:
Conditions depressed 5-30% for most of the day.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
17 Sep
Solar: very low
Geomagnetic: Quiet to Unsettled
Frequencies:
Cocos Island Region:
Enhanced by 15-50% during 06-14 UT.
Depressed by up to 15% at other times.
Niue Island Region:
Depressed throughout most of the day.
Depressed by 15-30% during 00-07 UT,
50% during 11-12 UT, and 15-30% during 13-17 UT.
Northern Australian Region:
Depressions of 5-15% throughout the UT day.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 15% over the UT day.
18 Sep
Solar: low
Geomagnetic: Quiet
Frequencies:
Cocos Island Region:
Depressed by 10-30% during 01-07 UT and 10-23 UT.
No day time enhancement.
Niue Island Region:
Depressed by 10-30% during 00-06 UT and 12-18 UT.
Enhanced by 5-20% during 08-11 UT.
Northern Australian Region:
Depressed by 5-30% for most of the day.
Occasionally at predicted monthly values
Southern Australian and New Zealand Region:
Depressed 5-10% for much of the day.
Slightly enhanced during 10-15 UT.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
19 Sep
Solar: low
Geomagnetic: Quiet to Unsettled
Frequencies:
Cocos Island Region:
Enhanced 15-40% during 06-14 UT.
Depressed 15-25% during 16-22 UT.
Niue Island Region:
Enhanced 15-40% during 00-10 UT.
Otherwise near predicted monthly values.
Northern Australian Region:
Depressed 10-35% during 13-21 UT.
Otherwise 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/Davis/Mawson):
Near predicted monthly values over the UT day.
2. FORECAST (20 SEPTEMBER - 26 SEPTEMBER)
Solar:
Low
Geomagnetic:
Quiet to unsettled conditions.
Frequencies:
MUFs near predicted monthly values.
For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
IPS Radio and Space Services email: asfc at ips.gov.au
PO Box 1386 WWW: http://www.ips.gov.au
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