[Ips-dsgr] SWS Daily Report - 09 June 22 issued 2330 UT on 09 Jun 2022 [SEC=OFFICIAL]
Regional Warning Centre
rwc at ips.gov.au
Fri Jun 10 09:30:48 EST 2022
SUBJ: SWS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/09 JUNE 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 09 JUNE AND FORECAST FOR 10 JUNE - 12 JUNE
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx
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1A. SOLAR SUMMARY
Activity 09 Jun: R0
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 09 Jun: 106/55
1B. SOLAR FORECAST
10 Jun 11 Jun 12 Jun
Activity R0-R1 R0-R1 R0-R1
Fadeouts None expected None expected None expected
10.7cm/SSN 105/54 110/60 110/60
COMMENT: Solar activity on UT day 09-Jun was at R0 level, with
several low-level C-class flares. A currently unnumbered sunspot
group located west of AR3029 (S21W00) at S22W13 has a beta magnetic
classification, and was responsible for most of the flaring activity,
although is starting to decay. AR3029 is currently the only numbered
sunspot region on the solar disk. An active region beyond the
northeast limb also produced some low-level C-class flares earlier
in the UT day, which may be associated with a new sunspot region
which has very recently rotated onto the solar disk, currently
at N18E75 and unnumbered. Another new, unnumbered sunspot group
has started developing near S27E11. Solar activity is expected
to be at R0-R1 levels over 10-12 Jun. No Earth-directed CMEs
have been observed. After further analysis and modelling, a large
filament which had previously lifted off the solar disk in the
northwest quadrant, producing a CME visible in LASCO imagery
from 08/1724UT, is not considered to be geoeffective. The solar
wind speed on 09-Jun was at near background levels, decreasing
from around 330 km/s early in the UT day, to currently around
300 km/s. The peak total interplanetary magnetic field strength
(IMF, Bt) was 7 nT, and the north-south IMF component (Bz) range
was +3 to -6 nT. Bz was intermittently southward between 1000-1200UT
and 2050-2140UT. The solar wind speed is expected to remain at
near background levels over 10-12 Jun.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 09 Jun: G0
Estimated Indices 09 Jun : A K
Australian Region 2 11112010
Darwin 2 12101000
Learmonth 1 11101010
Alice Springs 1 10011000
Gingin 2 11101110
Canberra 2 11022010
Hobart 3 11023010
Estimated Antarctic Regional K Indices 09 Jun :
Macquarie Island 1 00022000
Casey 4 22112111
Mawson 10 33212124
Observed Regional daily pc3 Indices 09 Jun :
Darwin 0 (Quiet)
Townsville NA
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 09 Jun : A
Fredericksburg 5
Planetary 5
Observed AFr/Ap Indices 08 Jun : A K
Fredericksburg 5
Planetary 5 2102 1112
2B. MAGNETIC FORECAST
Date Ap Conditions
10 Jun 5 G0
11 Jun 5 G0
12 Jun 5 G0
COMMENT: G0 geomagnetic conditions were observed in both the
Australian and Antarctic regions on UT day 09-Jun. G0 conditions
are expected over 10-12 Jun.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
09 Jun Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
10 Jun Normal Normal Normal
11 Jun Normal Normal Normal
12 Jun Normal Normal Normal
COMMENT: Mostly normal HF propagation conditions are expected
over 10-12 Jun.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
09 Jun 50
Observed Australian Regional MUFs
Cocos Island Region:
Near predicted monthly values.
Niue Island Region:
Near predicted monthly values during local day.
Depressed by 20% during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 20% over the UT day.
Monthly T index:
Month T index
May 79
Jun 57
Jul 59
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
10 Jun 60 Near predicted monthly values
11 Jun 60 Near predicted monthly values
12 Jun 60 Near predicted monthly values
COMMENT: Maximum usable frequencies (MUFs) on UT day 09-Jun were
near monthly predicted values. Spread-F was observed at Hobart
during local night hours. MUFs are expected to be near monthly
predicted values over 10-12 Jun.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 08 Jun
Daily Proton Fluence >1 MeV: 4.1E+04
Daily Proton Fluence >10 MeV: 3.5E+04
Daily Electron Fluence >2 MeV: 1.30E+06 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 1%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: B3.0
DSCOVR Satellite Solar Wind Day Averaged Data for 08 Jun
Speed: 312 km/sec Density: 8.4 p/cc Temp: 36900 K Bz: 1 nT
(Courtesy Space Weather Prediction Center, Boulder USA)
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Space Weather Services email: asfc at bom.gov.au
Bureau of Meteorology
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Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp-out.sws.bom.gov.au
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