[Ips-wsgr] ASWFC Weekly Solar and Geophysical Report (03 January 25) issued 0024 UT on 03 Jan 2025 [SEC=OFFICIAL]
Australian Space Weather Forecasting Centre
aswfc at bom.gov.au
Fri Jan 3 11:24:21 AEDT 2025
SUBJ: ASWFC WEEKLY SOLAR AND GEOPHYSICAL REPORT
ISSUED ON 03 JANUARY 2025
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx
1. SUMMARY (27 DECEMBER - 02 JANUARY)
Date 27 28 29 30 31 01 02
10cm 259 260 255 224 218 219 212
AFr 3 4 5 7 10 48 ( 18)
Aaus 3 5 5 8 13 59 ( ??)
T 164 151 157 134 136 69 39
Solar: Solar flare activity
Geomagnetic: Geomagnetic activity observed for Australian region.
Frequencies: Australian ionospheric F2 critical frequencies
27 Dec
Solar: R1, with an M1.2 at 1538UT, and an M3.3 at
2035UT
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 during local day.
Enhanced by 20% during local night.
Northern Australian Region:
Mostly near predicted monthly values.
Enhanced by 25% after local dawn.
Southern Australian Region:
Near predicted monthly values during local day.
Enhanced by 15% during local night.
Antarctic Region (Casey/Davis/Mawson):
Enhanced by 15% over the UT day.
28 Dec
Solar: R1, with an M4.5 at 1121UT, an M1.3 at 1518UT,
and an M1.2 at 2214UT
Geomagnetic: G0
Frequencies:
Cocos Island Region:
Near predicted monthly values during local day.
Enhanced by 35% during local night.
Enhanced by 20% after local dawn.
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:
Mostly near predicted monthly values.
Enhanced by 30% after local dawn.
Antarctic Region (Casey/Davis/Mawson):
Enhanced by 20% over the UT day.
29 Dec
Solar: R3, with an M1.2 at 2214UT, an M1.0 at 0235UT,
an M2.0 at 0430UT, an M3.1 at 0526UT, an X1.1 at
0718UT, an M1.6 at 1224UT, an M1.1 at 1429UT, an
M7.1 at 1509UT, an M3.3 at 1708UT, an M1.1 at 2039UT,
an M1.5 at 2153UT, and an M1.9 at 2330UT
Geomagnetic: G0
Frequencies:
Cocos Island Region:
Near predicted monthly values.
Niue Island Region:
Enhanced by 20% during local day.
Enhanced by 25% during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Enhanced by 15% during local day.
Enhanced by 15% during local night.
Antarctic Region (Casey/Davis/Mawson):
Near predicted monthly values over the UT day.
30 Dec
Solar: R3, with an M1.9 at 2330UT, an M1.7 at 0047UT,
an M1.7 at 0300UT, an X1.5 at 0414UT, an M1.4 at
0840UT, an M1.7 at 1011UT, an M3.5 at 1446UT, an
M5.0 at 1654UT, an M1.2 at 1730UT, an M1.6 at 1742UT,
an M1.6 at 1824UT, and an M1.0 at 2241UT
Geomagnetic: G0
In the BOM magnetometer data for 30 Dec, a weak (9nT) impulse
was observed at 0410UT.
Frequencies:
Cocos Island Region:
Enhanced by 20% during local day.
Enhanced by 50% 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.
31 Dec
Solar: R1, with an M1.0 at 2241UT, an M1.0 at 0500UT,
an M2.0 at 2151UT, and an M2.7 at 2219UT
Geomagnetic: G1
In the BOM magnetometer data for 31 Dec, a weak (15nT) impulse
was observed at 1621UT.
Frequencies:
Cocos Island Region:
Mostly near predicted monthly values.
Enhanced by 30% after local dawn.
Niue Island Region:
Near predicted monthly values during local day.
Enhanced by 25% during local night.
Northern Australian Region:
Mostly near predicted monthly values.
Depressed by 25% after local dawn.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Davis/Mawson):
Near predicted monthly values over the UT day.
01 Jan
Solar: R1, with an M1.1 at 0445UT, an M1.0 at 1524UT,
an M1.2 at 1817UT, and an M1.1 at 2141UT
Geomagnetic: G3
In the BOM magnetometer data for 01 Jan, a weak (18nT) impulse
was observed at 0308UT.
Frequencies:
Cocos Island Region:
Depressed by 30% during local day.
Depressed by 15% during local night.
Enhanced by 25% after local dawn.
Niue Island Region:
Mostly near predicted monthly values.
Northern Australian Region:
Mostly near predicted monthly values.
Depressed by 45% after local dawn.
Southern Australian Region:
Near predicted monthly values during local day.
Depressed by 30% during local night.
Antarctic Region (Casey/Davis/Mawson):
Depressed by 20% over the UT day.
02 Jan
Solar: R1, with an M1.1 at 1740UT
Geomagnetic: G1
Frequencies:
Cocos Island Region:
Near predicted monthly values during local day.
Depressed by 20% during local night.
Niue Island Region:
Depressed by 40% during local day.
Depressed by 30% during local night.
Northern Australian Region:
Depressed by 35% during local day.
Depressed by 25% during local night.
Depressed by 30% after local dawn.
Southern Australian Region:
Depressed by 35% during local day.
Depressed by 20% during local night.
Depressed by 25% after local dawn.
Antarctic Region (Casey/Davis/Mawson):
Depressed by 20% over the UT day.
2. FORECAST (03 JANUARY - 09 JANUARY)
Solar:
R0-R1 with a chance for R2 activity this week.
Geomagnetic:
G0-G1 over 4-5 Jan. G0 other days.
Frequencies:
MUFs depressed 20-25% on 3-Jan, 15% over 4-7 Jan.
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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