[Ips-dsgr] SWS Daily Report - 23 June 22 issued 2330 UT on 23 Jun 2022 [SEC=OFFICIAL]
Regional Warning Centre
rwc at ips.gov.au
Fri Jun 24 09:30:51 EST 2022
SUBJ: SWS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/23 JUNE 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 23 JUNE AND FORECAST FOR 24 JUNE - 26 JUNE
STATUS INDICATORS SOL:** YELLOW ** MAG:GREEN ION: GREEN
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 23 Jun: R0
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 23 Jun: 121/73
1B. SOLAR FORECAST
24 Jun 25 Jun 26 Jun
Activity R0-R1 R0-R1 R0-R1
Fadeouts Possible Possible Possible
10.7cm/SSN 120/72 115/66 110/60
COMMENT: Solar activity on UT day 23-Jun was at the R0 level,
with several C-class flares. There are currently 4 spotted regions
on the solar disk. AR3038 (N17W47, beta-gamma) is currently the
most complex region but has shown intermediate spot decay. AR3040
(S12E42, beta-gamma) has shown some spot growth. The two other
active regions are stable. Solar activity is expected to be at
the R0 level over 24-26 Jun, with a chance of R1. No LASCO imagery
was available, there appeared to be no Earth-directed CMEs in
the STEREO imagery. The solar wind speed on 23-Jun ranged from
390-537 km/s. The peak total interplanetary field strength (IMF,
Bt) was 9 nT, and the north-south IMF component (Bz) range was
+7 to -6 nT. Wind speeds are expected to be moderately elevated
24-26 Jun due to combined effects of coronal holes and a weak
CME impact first observed 21-Jun.
-----------------------------------------------------------
2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 23 Jun: G0
Estimated Indices 23 Jun : A K
Australian Region 5 22221021
Darwin 5 22221021
Learmonth - --------
Alice Springs 5 22221021
Gingin 5 21221022
Canberra 5 22211122
Hobart 5 21221121
Estimated Antarctic Regional K Indices 23 Jun :
Macquarie Island 5 22221111
Casey 9 33321122
Mawson 30 35342165
Observed Regional daily pc3 Indices 23 Jun :
Darwin 0 (Quiet)
Townsville NA
Learmonth 20 (Quiet)
Alice Springs 0 (Quiet)
Gingin 4 (Quiet)
Canberra 2 (Quiet)
Hobart 11 (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 23 Jun : A
Fredericksburg 8
Planetary 9
Observed AFr/Ap Indices 22 Jun : A K
Fredericksburg 10
Planetary 12 2233 3333
2B. MAGNETIC FORECAST
Date Ap Conditions
24 Jun 13 G0
25 Jun 13 G0
26 Jun 13 G0
COMMENT: G0 conditions were observed in the Australian region
on UT day 23-Jun. G0 conditions were generally observed in the
Antarctic region, with periods of G1 and G2 observed at Mawson.
G0 conditions are expected over 24-26 Jun. Mildly disturbed geomagnetic
conditions on 24-26 Jun, due to coronal holes effects and a possible
weak CME impact first observed 21-Jun.
-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
23 Jun Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
24 Jun Normal Normal Normal-fair
25 Jun Normal Normal Normal-fair
26 Jun Normal Normal Normal-fair
COMMENT: Mostly normal HF propagation conditions are expected
over 24-26 Jun. Chance of shortwave fadeouts.
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
23 Jun 62
Observed Australian Regional MUFs
Cocos Island Region:
Enhanced by 20% during local day.
Depressed by 20% during local night.
Niue Island Region:
Depressed by 20% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values 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
24 Jun 65 Near predicted monthly values
25 Jun 60 Near predicted monthly values
26 Jun 60 Near predicted monthly values
COMMENT: SWS SWF HF Communications Warning 50 was issued on 23
June and is current for 23-25 Jun. Maximum usable frequencies
(MUFs) on UT day 23-Jun were mostly near monthly predicted values.
Spread-F was observed at Hobart during local night hours. Sporadic
E was observed at Niue 06-09UT. MUFs are expected to be near
predicted monthly values over 24-26 Jun. Chance of shortwave
fadeouts.
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 22 Jun
Daily Proton Fluence >1 MeV: 9.5E+04
Daily Proton Fluence >10 MeV: 3.3E+04
Daily Electron Fluence >2 MeV: 2.80E+07 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 4%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: B7.8
DSCOVR Satellite Solar Wind Day Averaged Data for 22 Jun
Speed: 476 km/sec Density: 7.9 p/cc Temp: 256000 K Bz: -1 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