[Ips-dsgr] ASWFC Daily Report - 29 January 26 issued 2330 UT on 29 Jan 2026 [SEC=OFFICIAL]
Australian Space Weather Forecasting Centre
aswfc at bom.gov.au
Fri Jan 30 10:30:49 AEDT 2026
SUBJ: ASWFC DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/29 JANUARY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
SUMMARY FOR 29 JANUARY AND FORECAST FOR 30 JANUARY - 01 FEBRUARY
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx
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1A. SOLAR SUMMARY
Activity 29 Jan: R0
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 29 Jan: 129/82
1B. SOLAR FORECAST
30 Jan 31 Jan 01 Feb
Activity R0 Chance R1 R0 Chance R1 R0 Chance R1
Fadeouts None expected None expected None expected
10.7cm/SSN 125/78 115/66 110/60
COMMENT: Solar flare activity was at the R0 level on UT day 29-Jan.
There are currently six numbered and one unnumbered sunspot regions
visible on the solar disk. Active Region (AR) 4349 (S14E42, alpha)
is currently the largest region and has shown slight growth over
the UT day. AR4355 (S15E08, alpha) has also shown mild growth over
the UT day. All other regions appear stable or in decay. Solar
flare activity is expected to remain at the R0 level, with a
chance of R1 over 30-Jan to 1 Feb. Solar radiation storm conditions
were at the S0 level on UT day 29-Jan. S0 conditions are expected
for 30-Jan to 1 Feb. No Earth-directed coronal mass ejections
were observed over the past 24 hours. The solar wind speed has
been mostly steady and ranged between 781-505 km/s across the
UT day and is currently near 689 km/s. The interplanetary magnetic
field strength (IMF, Bt) peaked at 7 nT, with the North-South
component (Bz) ranging between -7 and +7 nT over the UT day.
The solar wind speed is expected to remain elevated over 30-Jan
to 1 Feb, due to coronal hole high speed wind stream effects.
The solar wind speed is expected to decline over 31-Jan to 1-Feb.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 29 Jan: G0
Estimated Indices 29 Jan : A K
Australian Region 14 33233333
Cocos Island 11 32233322
Darwin 14 33233333
Townsville 13 22333333
Learmonth 16 33334333
Alice Springs 13 32233333
Gingin 15 33233433
Canberra 13 32233333
Kennaook Cape Grim 16 33334333
Hobart 15 33333333
Estimated Antarctic Regional K Indices 29 Jan :
Macquarie Island 30 33346453
Casey 39 56644433
Mawson 46 44444755
Observed Regional daily pc3 Indices 29 Jan :
Darwin 25 (Quiet to unsettled)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Alice Springs 0 (Quiet)
Gingin 14 (Quiet)
Canberra 32 (Quiet to unsettled)
Hobart 41 (Unsettled)
Pc3 pulsations are high frequency (10-45 second period) variations
of the Earths magnetic field. Daily pc3-indices are the daily sum
of 20 minute pc3-indices for that station and have been shown to be
well correlated with rejection of high resolution aeromagnetic
survey flight-line data.
NOTE: Indices may have been generated from data obtained in
cooperation with the following organisations: Geoscience Australia,
University of Newcastle Space Physics Group, Australian Government
Antarctic Division and International Center for Space Weather
Science and Education, Japan.
Estimated AFr/Ap Indices 29 Jan : A
Fredericksburg 14
Planetary 20
Observed AFr/Ap Indices 28 Jan : A K
Fredericksburg 15
Planetary 24 3333 4435
2B. MAGNETIC FORECAST
Date Ap Conditions
30 Jan 12 G0, chance of G1
31 Jan 8 G0
01 Feb 8 G0
COMMENT: G0 geomagnetic conditions were observed in Australia
and a brief period of G3 has been observed in Antarctic regions.
G0 with chance of G1 geomagnetic conditions are expected over
30-Jan due to high speed wind stream effects from a geoeffective
coronal hole. G0 geomagnetic conditions are expected for 31-Jan
to 01-Feb.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
29 Jan Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
30 Jan Normal Normal-fair Normal-fair
31 Jan Normal Normal Normal-fair
01 Feb Normal Normal Normal-fair
COMMENT: Global ionospheric conditions were mostly normal, with
only some minor degradations seen in the Americas during local
dawn. MUFs in the European region were near predicted values.
Ionospheric conditions are expected to remain Normal to fair
over 30-Jan to 01-Feb, with some minor degradations possible
due to coronal hole high speed wind stream effects.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
29 Jan 76
Observed Australian Regional MUFs
Cocos Island Region:
Depressed by 40% during local day.
Depressed by 20% during local night.
Niue Island Region:
Enhanced by 15% during local day.
Enhanced by 25% during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Enhanced by 15% during local night.
Southern Australian Region:
Depressed by 20% during local day.
Near predicted monthly values during local night.
Antarctic Region (Casey/Davis/Mawson):
Depressed by 15% over the UT day.
Monthly T index:
Month T index
Dec 110
Jan 89
Feb 88
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
30 Jan 80 Near predicted monthly values/depressed 10 to
15%
31 Jan 85 Near predicted monthly values
01 Feb 90 Near predicted monthly values
COMMENT: Maximum Usable Frequencies (MUFs) in the Northern Australian
region near monthly predicted values to 15% enhanced during local
night. Southern Australian region MUFs were near monthly predicted
values to depressed by 20% during local day. MUFs are expected
to be near predicted monthly values to 15% depressed on 30-Jan
with depressions more likely in Southern Australian regions.
Near predicted monthly values are expected over 31-Jan to 01-Feb.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 28 Jan
Daily Proton Fluence >1 MeV: 6.0E+06
Daily Proton Fluence >10 MeV: 1.7E+04
Daily Electron Fluence >2 MeV: 2.40E+08 (moderate fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability:17%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: B7.3
DSCOVR Satellite Solar Wind Day Averaged Data for 28 Jan
Speed: 564 km/sec Density: 1.5 p/cc Temp: 258000 K Bz: -2 nT
(Courtesy Space Weather Prediction Center, Boulder USA)
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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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