[Ips-dsgr] SWS Daily Report - 06 June 20 issued 2331 UT on 06 Jun 2020
Regional Warning Centre
rwc at ips.gov.au
Sun Jun 7 09:31:18 EST 2020
SUBJ: SWS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/06 JUNE 2020 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 06 JUNE AND FORECAST FOR 07 JUNE - 09 JUNE
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 06 Jun: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 06 Jun: 72/8
1B. SOLAR FORECAST
07 Jun 08 Jun 09 Jun
Activity Very low to low Very low to low Very low to low
Fadeouts None expected None expected None expected
10.7cm/SSN 72/8 72/8 72/8
COMMENT: Solar activity was very low on UT day 06 June. There
is currently one active region with sunspots on the visible disc,AR
2765(S23E33). This region has shown some growth over the period
and produced low level B-class flares. No significant Earthward
directed CMEs were observed in the available coronagraph images.
Very low levels of solar activity with a chance of isolated C-class
flares are expected for the next three UT days, 07-09 June. During
UT day 06 June, the solar wind speed remained at nominal levels,
under 330 km/s. The total IMF (Bt) varied between 2 nT and 4
nT, and the north-south IMF component (Bz) varied mostly in the
range -4/+2 nT. The solar wind speed is expected to be at background
to slightly enhanced levels during UT days 07-09 June due to
weak coronal hole effects.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 06 Jun: Quiet
Estimated Indices 06 Jun : A K
Australian Region 1 11111000
Cocos Island 1 11011000
Darwin 1 01110000
Townsville 3 11121111
Learmonth 2 11111110
Alice Springs 1 11111000
Gingin 2 01112000
Canberra 1 00021000
Hobart 2 01122100
Estimated Antarctic Regional K Indices 06 Jun :
Macquarie Island 1 00021000
Casey 3 12111101
Mawson 4 11102113
Observed Regional daily pc3 Indices 06 Jun :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Alice Springs 0 (Quiet)
Gingin 0 (Quiet)
Canberra 0 (Quiet)
Melbourne NA
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 06 Jun : A
Fredericksburg 4
Planetary 4
Observed AFr/Ap Indices 05 Jun : A K
Fredericksburg 4
Planetary 3 11111000
2B. MAGNETIC FORECAST
Date Ap Conditions
07 Jun 10 Quiet to Unsettled
08 Jun 7 Mostly Quiet
09 Jun 7 Mostly Quiet
COMMENT: Geomagnetic conditions in the Australian region were
quiet on UT day 06 June. The Antarctic region observed mostly
quiet levels. Global geomagnetic activity is expected to be mostly
quiet with a chance of isolated unsettled periods for UT days
07-09 June.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
06 Jun Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
07 Jun Normal Normal Normal
08 Jun Normal Normal Normal
09 Jun Normal Normal Normal
COMMENT: Mostly normal HF conditions are expected for the next
three UT days, 07-09 June.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
06 Jun 4
Observed Australian Regional MUFs
Cocos Island Region:
Near predicted monthly values during local day.
Enhanced by 20% during local night.
Niue Island Region:
Near predicted monthly values during local day.
Enhanced by 35% during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Enhanced by 20% during local night.
Southern Australian Region:
Near predicted monthly values during local day.
Enhanced by 25% during local night.
Enhanced by 20% after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly value over the UT day.
Monthly T index:
Month T index
May 1
Jun -12
Jul -13
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
07 Jun 5 Near to 15% above predicted monthly values
08 Jun 5 Near to 15% above predicted monthly values
09 Jun 5 Near to 15% above predicted monthly values
COMMENT: In the Australian region on UT day 06 June, MUFs were
near predicted monthly values to enhanced. Sporadic E was observed
over some sites. MUFs in the Australian region are expected to
be mostly near predicted monthly values for the next three UT
days, 07-09 June.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 05 Jun
Daily Proton Fluence >1 MeV: 5.4E+04
Daily Proton Fluence >10 MeV: 4.6E+04
Daily Electron Fluence >2 MeV: 1.70E+06 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 1%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A3.6
DSCOVR Satellite Solar Wind Day Averaged Data for 05 Jun
Speed: 330 km/sec Density: 5.4 p/cc Temp: 28900 K Bz: -1 nT
(Courtesy Space Weather Prediction Center, Boulder USA)
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