[Ips-dsgr] SWS Daily Report - 09 April 17 issued 2336 UT on 09 Apr 2017 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Mon Apr 10 09:36:06 EST 2017
SUBJ: SWS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/09 APRIL 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 09 APRIL AND FORECAST FOR 10 APRIL - 12 APRIL
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 09 Apr: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 09 Apr: 74/11
1B. SOLAR FORECAST
10 Apr 11 Apr 12 Apr
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 72/8 72/8 72/8
COMMENT: Solar activity was very low over the last 24 hours.
Very low activity is expected for the next 3 days. The solar
wind speed declined to ~460 km/s as coronal hole effects waned.
The total IMF strength is rising, currently 9 nT, while the Bz
component was southward down to -6 nT until around 15 UT, currently
+5 nT.
-----------------------------------------------------------
2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 09 Apr: Quiet to Unsettled
Estimated Indices 09 Apr : A K
Australian Region 8 23233201
Darwin 9 23233301
Townsville 9 23233301
Learmonth 6 22223200
Alice Springs 9 23233301
Norfolk Island 8 23233201
Culgoora 8 23233201
Gingin 11 32234310
Camden 9 23333201
Canberra 7 23223200
Launceston 14 34334211
Hobart 11 24333201
Estimated Antarctic Regional K Indices 09 Apr :
Macquarie Island 27 45455310
Casey 11 33333211
Mawson 29 56343324
Observed Regional daily pc3 Indices 09 Apr :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Alice Springs 0 (Quiet)
Gingin 8 (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 09 Apr : A
Fredericksburg 14
Planetary 20
Observed AFr/Ap Indices 08 Apr : A K
Fredericksburg 14
Planetary 15 3343 2324
2B. MAGNETIC FORECAST
Date Ap Conditions
10 Apr 15 Unsettled to Active
11 Apr 8 Quiet to Unsettled
12 Apr 8 Quiet to Unsettled
COMMENT: Magnetic conditions were mostly quiet to unsettled across
Australia on 9-Apr, with brief isolated active periods. Quiet
to unsettled conditions are expected in Australia for the next
3 days.
-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
09 Apr Normal-poor Normal-fair Normal-poor
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
10 Apr Normal Normal Normal-poor
11 Apr Normal Normal Normal-poor
12 Apr Normal Normal Normal-poor
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
09 Apr 9
Observed Australian Regional MUFs
Cocos Island Region:
Near predicted monthly values.
Niue Island Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Depressed by 20% during local night.
Southern Australian Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 20% over the UT day.
Monthly T index:
Month T index
Mar 11
Apr 14
May 14
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
10 Apr 10 Near predicted monthly values/depressed 0 to
20%
11 Apr 10 Near predicted monthly values/depressed 0 to
20%
12 Apr 10 Near predicted monthly values/depressed 0 to
20-%
COMMENT: Minor MUF depressions were observed across Australia
at times on 9-Apr. Sporadic-E was observed at Cocos Island 21-23
UT. Minor MUF depressions are expected at times for the next
3 days.
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 08 Apr
Daily Proton Fluence >1 MeV: 6.0E+06
Daily Proton Fluence >10 MeV: 1.5E+04
Daily Electron Fluence >2 MeV: 1.20E+07 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 2%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: B1.0
ACE Satellite Solar Wind Day Averaged Data for 08 Apr
Speed: 554 km/sec Density: 7.6 p/cc Temp: 230000 K Bz: -1 nT
(Courtesy Space Weather Prediction Center, Boulder USA)
ACE data can be incorrect during strong proton events.
-----------------------------------------------------------
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