[Ips-dsgr] ASWFC Daily Report - 02 March 26 issued 2330 UT on 02 Mar 2026 [SEC=OFFICIAL]
Australian Space Weather Forecasting Centre
aswfc at bom.gov.au
Tue Mar 3 10:30:43 AEDT 2026
SUBJ: ASWFC DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/02 MARCH 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
SUMMARY FOR 02 MARCH AND FORECAST FOR 03 MARCH - 05 MARCH
STATUS INDICATORS SOL:** YELLOW ** MAG:GREEN ION: GREEN
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx
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1A. SOLAR SUMMARY
Activity 02 Mar: R0
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 02 Mar: 148/102
1B. SOLAR FORECAST
03 Mar 04 Mar 05 Mar
Activity R0-R1 R0-R1 R0-R1
Fadeouts Possible Possible Possible
10.7cm/SSN 150/105 150/105 152/107
COMMENT: Solar activity on UT day 2-Mar was R0, with no solar
flares. There are currently six numbered sunspot groups on the
solar disk. All sunspots are currently stable, although active
region (AR) 4384 (N10E64, beta) is still somewhat obscured near
the eastern solar limb. Solar activity is expected to be R0-R1
over 3-5 Mar.
A large filament in the Sun's northeast region slowly erupted near
0800 UT. This event was associated with a series of northward ejected
CMEs, although these are not expected to be geoeffective. No other
noteworthy CMEs were observed on 2-Mar.
S0 solar radiation storm conditions were observed on UT day 2-Mar.
S0 solar radiation storm conditions are expected over 3-5 Mar.
The solar wind environment was at background levels
on UT day 2-Mar. The solar wind speed ranged from near 350 trending
to 300 km/s. The peak total interplanetary field strength (IMF,
Bt) was 6 nT and the north-south IMF component range was +5 to
-5 nT. The solar wind is expected to remain near background levels
over 3-5 Mar.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 02 Mar: G0
Estimated Indices 02 Mar : A K
Australian Region 2 11101011
Cocos Island 2 11101110
Darwin 3 21101112
Townsville 3 21111111
Learmonth 2 21101001
Alice Springs 2 11101002
Gingin 2 21101001
Canberra 2 11101011
Kennaook Cape Grim 2 11201011
Hobart 2 11201011
Estimated Antarctic Regional K Indices 02 Mar :
Macquarie Island 2 11102000
Casey 11 34422011
Mawson 8 32202114
Observed Regional daily pc3 Indices 02 Mar :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Alice Springs 0 (Quiet)
Gingin 0 (Quiet)
Canberra 0 (Quiet)
Hobart 0 (Quiet)
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 02 Mar : A
Fredericksburg 6
Planetary 6
Observed AFr/Ap Indices 01 Mar : A K
Fredericksburg 7
Planetary 8 3322 2122
2B. MAGNETIC FORECAST
Date Ap Conditions
03 Mar 5 G0
04 Mar 5 G0
05 Mar 5 G0
COMMENT: G0 geomagnetic conditions were observed in the Australian
and Antarctic regions on UT day 2-Mar. G0 geomagnetic conditions
are expected over 3-5 Mar.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
02 Mar Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
03 Mar Normal Normal Normal
04 Mar Normal Normal Normal
05 Mar Normal Normal Normal
COMMENT: HF radio propagation conditions on UT day 2-Mar were
generally normal across the globe. HF radio propagation conditions
are expected to be mostly normal over 3-5 Mar.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
02 Mar 105
Observed Australian Regional MUFs
Cocos Island Region:
Enhanced by 30% during local day.
Enhanced by 55% during local night.
Enhanced by 20% after local dawn.
Niue Island Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Mostly near predicted monthly values.
Antarctic Region (Casey/Davis/Mawson):
Near predicted monthly values over the UT day.
Monthly T index:
Month T index
Feb 98
Mar 87
Apr 85
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
03 Mar 100 Near predicted monthly values
04 Mar 100 Near predicted monthly values
05 Mar 100 Near predicted monthly values
COMMENT: Maximum usable frequencies (MUFs) in the Australian
region were mostly near predicted values on UT day 2-Mar. Some
sporadic-E was observed in Norfolk Island during local night
hours and some mild spread-F in Hobart during local dawn hours.
MUFs are expected to be mostly near predicted values over 3-5
Mar.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 01 Mar
Daily Proton Fluence >1 MeV: 4.6E+05
Daily Proton Fluence >10 MeV: 1.7E+04
Daily Electron Fluence >2 MeV: 2.80E+08 (moderate fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability:18%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: B6.8
DSCOVR Satellite Solar Wind Day Averaged Data for 01 Mar
Speed: 379 km/sec Density: 2.3 p/cc Temp: 39200 K Bz: -1 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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