[Ips-dsgr] SWS Daily Report - 27 June 22 issued 2330 UT on 27 Jun 2022 [SEC=OFFICIAL]
Regional Warning Centre
rwc at ips.gov.au
Tue Jun 28 09:30:47 EST 2022
SUBJ: SWS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/27 JUNE 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 27 JUNE AND FORECAST FOR 28 JUNE - 30 JUNE
STATUS INDICATORS SOL:** YELLOW ** MAG:GREEN ION: GREEN
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx
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1A. SOLAR SUMMARY
Activity 27 Jun: R0
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 27 Jun: 98/45
1B. SOLAR FORECAST
28 Jun 29 Jun 30 Jun
Activity R0 R0 R0
Fadeouts Possible Possible Possible
10.7cm/SSN 95/41 95/41 95/41
COMMENT: Solar activity on UT day 27-Jun was at the R0 level,
with several C-class flares. There are currently two numbered
sunspot regions on the solar disk, AR3040(S14W07, beta) and AR3041(N14W73,
beta). There is an unnumbered region near N06W00 (alpha). Solar
activity is expected to be at R0 level over 28-30 Jun. There
were filament eruptions around 27/0400 and 27/1000 in the northeast
quadrant seen in H-alpha imagery, with subsequent flows to the
northeast. The solar wind on UT day 27-Jun was elevated and ranged
from 400-642 km/s and is currently near 540 km/s. The peak total
interplanetary field strength (IMF, Bt) was 7 nT and the north-south
IMF component (Bz) range was +6 to -5 nT. The solar wind is expected
to decline over the 28-30 Jun.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 27 Jun: G0
Estimated Indices 27 Jun : A K
Australian Region 6 33300011
Darwin 5 33200011
Learmonth 6 33210022
Alice Springs 6 33300011
Gingin 6 33200022
Canberra 6 33300011
Hobart 7 33400001
Estimated Antarctic Regional K Indices 27 Jun :
Macquarie Island 12 45300011
Casey 8 33311022
Mawson 45 67423055
Observed Regional daily pc3 Indices 27 Jun :
Darwin 0 (Quiet)
Townsville NA
Learmonth 0 (Quiet)
Alice Springs 0 (Quiet)
Gingin 7 (Quiet)
Canberra 28 (Quiet to unsettled)
Hobart 52 (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 27 Jun : A
Fredericksburg 13
Planetary 15
Observed AFr/Ap Indices 26 Jun : A K
Fredericksburg 15
Planetary 21 4224 3344
2B. MAGNETIC FORECAST
Date Ap Conditions
28 Jun 10 G0
29 Jun 8 G0
30 Jun 8 G0
COMMENT: G0 conditions were observed in the Australian region
on UT day 27-Jun. G0 to G3 conditions were observed in the Antarctic
region. G0 activity is expected over 28-30 Jun, with 28-Jun being
mildly active.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
27 Jun Normal-fair Normal-fair Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
28 Jun Normal Normal Normal-fair
29 Jun Normal Normal Normal-fair
30 Jun Normal Normal Normal-fair
COMMENT: Mostly normal HF propagation conditions are expected
over 28-30 Jun. MUFs may be slightly depressed over 28-30 Jun.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
27 Jun 52
Observed Australian Regional MUFs
Cocos Island Region:
Enhanced by 65% during local day.
Depressed by 30% during local night.
Niue Island Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 25% 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
28 Jun 50 Near predicted monthly values
29 Jun 55 Near predicted monthly values
30 Jun 55 Near predicted monthly values
COMMENT: Maximum usable frequencies (MUFs) on UT day 27-Jun were
near monthly predicted values to mildly depressed. Spread F observed
during local night at Townsville, Norfolk Island, Learmonth.
MUFs are expected to be near monthly predicted values to mildly
depressed over 28-30 Jun.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 26 Jun
Daily Proton Fluence >1 MeV: 1.5E+05
Daily Proton Fluence >10 MeV: 3.3E+04
Daily Electron Fluence >2 MeV: 2.50E+07 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 4%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: B3.3
DSCOVR Satellite Solar Wind Day Averaged Data for 26 Jun
Speed: 576 km/sec Density: 2.8 p/cc Temp: 426000 K Bz: -1 nT
(Courtesy Space Weather Prediction Center, Boulder USA)
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