[Ips-wsgr] ASWFC Weekly Solar and Geophysical Report (24 January 25) issued 0035 UT on 24 Jan 2025 [SEC=OFFICIAL]
Australian Space Weather Forecasting Centre
aswfc at bom.gov.au
Fri Jan 24 11:35:33 AEDT 2025
SUBJ: ASWFC WEEKLY SOLAR AND GEOPHYSICAL REPORT
ISSUED ON 24 JANUARY 2025
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx
1. SUMMARY (17 JANUARY - 23 JANUARY)
Date 17 18 19 20 21 22 23
10cm 227 222 234 230 225 214 215
AFr 14 8 9 13 6 0 ( 9)
Aaus 14 8 11 12 8 6 ( ??)
T 108 106 126 96 144 109 118
Solar: Solar flare activity
Geomagnetic: Geomagnetic activity observed for Australian region.
Frequencies: Australian ionospheric F2 critical frequencies
17 Jan
Solar: R2, with an M1.3 at 0212UT, an M1.1 at 0320UT,
an M2.0 at 0919UT, an M1.5 at 1137UT, an M7.4 at
1335UT, an M2.1 at 1850UT, an M1.8 at 1949UT, and
an M1.0 at 2205UT
Geomagnetic: G0
Frequencies:
Cocos Island Region:
Near predicted monthly values.
Niue Island Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Enhanced by 25% during local night.
Depressed by 20% after local dawn.
Southern Australian Region:
Depressed by 20% during local day.
Near predicted monthly values during local night.
Depressed by 25% after local dawn.
Antarctic Region (Casey/Davis/Mawson):
Depressed by 20% over the UT day.
18 Jan
Solar: R1, with an M1.0 at 2205UT, an M1.7 at 0058UT,
and an M1.1 at 0307UT
Geomagnetic: G0
Frequencies:
Cocos Island Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Niue Island Region:
Enhanced by 15% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Depressed by 20% during local day.
Near predicted monthly values during local night.
Antarctic Region (Casey/Davis/Mawson):
Near predicted monthly values over the UT day.
19 Jan
Solar: R1, with an M2.4 at 0332UT
Geomagnetic: G0
Frequencies:
Cocos Island Region:
Enhanced by 20% during local day.
Near predicted monthly values during local night.
Niue Island Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values during local day.
Enhanced by 15% during local night.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Davis/Mawson):
Near predicted monthly values over the UT day.
20 Jan
Solar: R0
Geomagnetic: G0
Frequencies:
Cocos Island Region:
Depressed by 20-35%.
Niue Island Region:
Enhanced by 15% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Depressed by 20% during local day.
Near predicted monthly values during local night.
Southern Australian Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Hobart and Canberra 15-20% depressed after dawn.
Antarctic Region (Casey/Davis/Mawson):
Depressed by 25% over the UT day.
21 Jan
Solar: R1, with an M3.3 at 1037UT
Geomagnetic: G0
Frequencies:
Cocos Island Region:
Enhanced by 15% during local day.
Near predicted monthly values during local night.
Niue Island Region:
Enhanced by 15%.
Northern Australian Region:
Enhanced by 20-40%.
Southern Australian Region:
Mostly near predicted monthly values.
Depressed 15-20% early in the UT day.
Antarctic Region (Casey/Davis/Mawson):
Near predicted monthly values over the UT day.
22 Jan
Solar: R1, with an M1.3 at 1109UT
Geomagnetic: G0
Frequencies:
Cocos Island Region:
Mostly near predicted monthly values.
Niue Island Region:
Enhanced by 20% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Davis/Mawson):
Near predicted monthly values over the UT day.
23 Jan
Solar: R0
Geomagnetic: G0
Frequencies:
Cocos Island Region:
Near predicted monthly values during local day.
Enhanced by 15% during local night.
Niue Island Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Davis/Mawson):
Near predicted monthly values over the UT day.
2. FORECAST (24 JANUARY - 30 JANUARY)
Solar:
R1-R2 for most of the week
Geomagnetic:
G0-G1 on 24 Jan; G1-G2 on 25 Jan and G0-G1 on 26 Jan.
Frequencies:
Depressions to maximum usable frequencies (MUFS) from 24-Jan continuing
through to 26-Jan, gradually worsening to 20%. MUFs near predicted
values by end of the week.
For an explanation of some of the terms in this report, go to
https://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au
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