[Ips-dsgr] SWS Daily Report - 11 June 22 issued 2330 UT on 11 Jun 2022 [SEC=OFFICIAL]
Regional Warning Centre
rwc at ips.gov.au
Sun Jun 12 09:30:48 EST 2022
SUBJ: SWS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/11 JUNE 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 11 JUNE AND FORECAST FOR 12 JUNE - 14 JUNE
STATUS INDICATORS SOL:** YELLOW ** MAG:GREEN ION: GREEN
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 11 Jun: R0
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 11 Jun: 112/63
1B. SOLAR FORECAST
12 Jun 13 Jun 14 Jun
Activity R0-R1 R0-R1 R0-R1
Fadeouts Possible Possible Possible
10.7cm/SSN 115/66 120/72 120/72
COMMENT: Solar activity on UT day 11-Jun was at ASWAS R0 level.
Solar region AR3030 (N20E52) has been stable and relatively quiet,
producing only an isolated minor low level C1 class flare in
the past 24 hours (another low level longer duration C1 flare
was observed late in the UT day, however no optical location
is available at the time of issue). A new minor solar region
AR3031 (S27E43) has emerged on the solar disk. The solar wind
speed on 11-Jun varied between 296 and 384km/sec, with an overall
slight increasing trend, possibly due to a pair of very thin
coronal holes visible in the northwest solar quadrant, extending
from the northern solar pole. A small section of solar filament
lifted off the solar disk at N28W44 around 11/0900UT. No Earth
directed CMEs have been observed. The peak total interplanetary
magnetic field strength (IMF, Bt) was 8 nT, and the north-south
IMF component (Bz) range was +7 to -7 nT. The solar wind is expected
to be very mildly enhanced for the next two days, with the increase
in solar wind speed much weaker for this rotation. An isolated
equatorial coronal hole is visible in the eastern solar hemisphere
which 27 day recurrence patterns suggest will elevate the solar
wind during the interval 16-19 Jun. A minor solar region may
soon rotate onto the solar disk at latitude S20.
-----------------------------------------------------------
2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 11 Jun: G0
Estimated Indices 11 Jun : A K
Australian Region 5 22311111
Darwin 6 22322111
Learmonth 6 22322111
Alice Springs 5 22311110
Gingin 3 11311000
Canberra 3 11311001
Hobart 3 11310000
Estimated Antarctic Regional K Indices 11 Jun :
Macquarie Island 1 01200000
Casey 4 22320000
Mawson 8 32312221
Observed Regional daily pc3 Indices 11 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 11 Jun : A
Fredericksburg 8
Planetary 8
Observed AFr/Ap Indices 10 Jun : A K
Fredericksburg 6
Planetary 7 3111 2222
2B. MAGNETIC FORECAST
Date Ap Conditions
12 Jun 9 G0
13 Jun 9 G0
14 Jun 5 G0
COMMENT: G0 geomagnetic conditions were observed in both the
Australian and Antarctic regions on UT day 11-Jun. G0 conditions
are expected over 12-14 Jun. A very slight increase in geomagnetic
activity to unsettled levels is possible 12-13 Jun.
-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
11 Jun Normal Normal Fair-normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
12 Jun Normal Normal Normal
13 Jun Normal Normal Normal
14 Jun Normal Normal Normal
COMMENT: Mostly normal HF propagation conditions are expected
over 12-14 Jun.
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
11 Jun 51
Observed Australian Regional MUFs
Cocos Island Region:
Enhanced by 25% during local day.
Depressed by 15% during local night.
Niue Island Region:
Near predicted monthly values.
Northern Australian Region:
Mostly near predicted monthly values.
Southern Australian Region:
Mostly near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 15% 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
12 Jun 60 Near predicted monthly values
13 Jun 60 Near predicted monthly values
14 Jun 60 Near predicted monthly values
COMMENT: Maximum usable frequencies (MUFs) on UT day 11-Jun were
near monthly predicted values. Spread-F was observed during local
night hours. MUFs are expected to be near monthly predicted
values over 12-14 Jun.
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 10 Jun
Daily Proton Fluence >1 MeV: 4.4E+04
Daily Proton Fluence >10 MeV: 3.7E+04
Daily Electron Fluence >2 MeV: 1.80E+06 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 1%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: B5.2
DSCOVR Satellite Solar Wind Day Averaged Data for 10 Jun
Speed: 304 km/sec Density: 10.5 p/cc Temp: 38000 K Bz: 2 nT
(Courtesy Space Weather Prediction Center, Boulder USA)
-----------------------------------------------------------
Space Weather Services email: asfc at bom.gov.au
Bureau of Meteorology
PO Box 1386 WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010 fax: +61 2 9213 8060
IMPORTANT: This e-mail, including any attachments, may contain,
confidential or copyright information. The views expressed in
this message are those of the individual sender, unless
specifically stated to be the views of SWS. If you are not
the intended recipient, please contact the sender immediately
and delete all copies of this e-mail and attachments.
To unsubscribe from an IPS mail list either send an email to
"MAIL_LIST"-leave at ips.gov.au or go to
http://www.sws.bom.gov.au/mailman/listinfo/"MAIL_LIST".
Information about training can be obtained from
http://www.sws.bom.gov.au/mailman/listinfo/ips-training.
General information is available from
http://www.sws.bom.gov.au/mailman/listinfo/ips-info.
More information about the ips-dsgr
mailing list