[Ips-dsgr] SWS Daily Report - 23 June 17 issued 2330 UT on 23 Jun 2017 [SEC=UNCLASSIFIED]
Regional Warning Centre
rwc at ips.gov.au
Sat Jun 24 09:30:22 EST 2017
SUBJ: SWS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/23 JUNE 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 23 JUNE AND FORECAST FOR 24 JUNE - 26 JUNE
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 23 Jun: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 23 Jun: 74/11
1B. SOLAR FORECAST
24 Jun 25 Jun 26 Jun
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 74/11 74/11 73/9
COMMENT: Solar activity was Very Low for the UT day, 23 June.
Very Low solar activity is expected for the next 3 days with
a slight chance of C-class flares. No Earth-directed CMEs were
observed in the available LASCO imagery. The solar wind speed
was between approximately 320 to 340 km/s early in the UT day
23 June, then started to increase after 23/1700 UT. It is currently
around 380 km/s. The B total interplanetary magnetic field increased
over the last 24 hours, starting around 2 nT and currently around
8 nT. The Bz component varied between -7 to 6 nT and is currently
around 4 nT. The solar wind speed is expected to continue to
increase over the next 24 hours due to coronal hole effects.
-----------------------------------------------------------
2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 23 Jun: Quiet
Estimated Indices 23 Jun : A K
Australian Region 2 10120020
Cocos Island 2 11100020
Darwin 2 11110011
Townsville 3 10120121
Learmonth 2 11110020
Alice Springs 2 11110020
Norfolk Island 2 01120010
Culgoora 2 10120010
Gingin 2 10020020
Camden 2 10120020
Canberra 1 00020010
Launceston 2 10120021
Hobart 2 10020020
Estimated Antarctic Regional K Indices 23 Jun :
Macquarie Island 1 10021000
Casey 3 11111021
Mawson 7 11112142
Observed Regional daily pc3 Indices 23 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 23 Jun : A
Fredericksburg 8
Planetary 9
Observed AFr/Ap Indices 22 Jun : A K
Fredericksburg 8
Planetary 6 2200 1032
2B. MAGNETIC FORECAST
Date Ap Conditions
24 Jun 12 Quiet to Active
25 Jun 10 Quiet to Unsettled
26 Jun 8 Quiet to Unsettled
COMMENT: Geomagnetic activity was at Mostly Quiet levels across
the Australian region. Quiet to Active conditions are possible
over the next day (24 June) due to the expected influence of
a northern high latitude (>20N) positive polarity coronal hole,
then Quiet to Unsettled conditions for 25-26 June as the effects
of the coronal hole wane.
-----------------------------------------------------------
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
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
23 Jun 4
Observed Australian Regional MUFs
Cocos Island Region:
No data available during local day.
No data available during local night.
Niue Island Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
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 10
Jun 10
Jul 9
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
24 Jun 10 Near predicted monthly values
25 Jun -5 Near predicted monthly values/depressed 10 to
20%
26 Jun -5 Near predicted monthly values/depressed 10 to
20%
COMMENT: Mostly near predicted monthly MUFs were observed over
the Australian region on UT day, 23 June. Mostly near predicted
MUFs are expected for the UT day 24 June but minor depressions
in MUFs may occur on 25-26 June due to possible geomagnetic activity.
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 22 Jun
Daily Proton Fluence >1 MeV: 2.4E+05
Daily Proton Fluence >10 MeV: 1.7E+04
Daily Electron Fluence >2 MeV: 6.60E+06 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 1%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A5.2
DSCOVR Satellite Solar Wind Day Averaged Data for 22 Jun
Speed: 340 km/sec Density: 4.0 p/cc Temp: 21300 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