[Ips-dsgr] IPS Daily Report - 27 August 12 issued 2330 UT on 27 Aug 2012
rwc
rwc at ips.gov.au
Tue Aug 28 09:30:00 EST 2012
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/27 AUGUST 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 27 AUGUST AND FORECAST FOR 28 AUGUST - 30 AUGUST
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 27 Aug: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 27 Aug: 112/63
1B. SOLAR FORECAST
28 Aug 29 Aug 30 Aug
Activity Very Low Very Low Low
Fadeouts None expected None expected None expected
10.7cm/SSN 120/72 120/72 125/78
COMMENT: Solar flare activity has been at very low levels for
the past few days. The solar wind speed decayed from around 700
to 500 km/s over the day. All currently visible active regions
are small and magnetically simple. Flare activity is expected
to remain at very low to low levels for the next few days. The
solar wind speed is expected to continue to decay back to ambient
levels as the recent coronal hole high speed stream abates.
-----------------------------------------------------------
2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 27 Aug: Quiet
Estimated Indices 27 Aug : A K
Australian Region 3 22110101
Darwin 4 32210101
Townsville 6 22221221
Learmonth 6 23221211
Norfolk Island 2 12110000
Camden 3 22110101
Canberra 2 12110100
Hobart 2 12110101
Estimated Antarctic Regional K Indices 27 Aug :
Macquarie Island 3 1-------
Casey 11 34421211
Mawson 15 34321125
Observed Regional daily pc3 Indices 27 Aug :
Darwin 11 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Alice Springs 0 (Quiet)
Gnangara 49 (Unsettled)
Canberra 17 (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 Space Environment Research Center, Japan.
Estimated AFr/Ap Indices 27 Aug : A
Fredericksburg 6
Planetary 7
Observed AFr/Ap Indices 26 Aug : A K
Fredericksburg 10
Planetary 11 1222 4332
2B. MAGNETIC FORECAST
Date Ap Conditions
28 Aug 5 Quiet
29 Aug 5 Quiet
30 Aug 5 Quiet
COMMENT: Magnetic conditions over the Australian continent were
Quiet and are expected to remain Quiet over the next 3 days.
-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
27 Aug Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
28 Aug Normal Normal Normal
29 Aug Normal Normal Normal
30 Aug Normal Normal Normal
COMMENT: Periods of minor to mild MUF depressions were observed
at low and mid latitudes today during local night. Minor to mild
MUF depressions may be observed for the next three days, especially
at mid and high latitude locations.
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
27 Aug 74
Observed Australian Regional MUFs
Cocos Island Region:
Near predicted monthly values during local day.
Depressed by 30% during local night.
Depressed by 25% after local dawn.
Niue Island Region:
Mostly near predicted monthly values.
Northern Australian Region:
Near predicted monthly values during local day.
Depressed by 25% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
Predicted Monthly T index for August: 77
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
28 Aug 70 Near predicted monthly values
29 Aug 70 Near predicted monthly values
30 Aug 70 Near predicted monthly values
COMMENT: Local daytime MUFs are near predicted monthly values.
Periods of mild MUF depressions continue to be observed during
local night over low to mid latitudes. These conditions are expected
to persist for the next few days.
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 26 Aug
Daily Proton Fluence >1 MeV: 2.4E+05
Daily Proton Fluence >10 MeV: 1.1E+04
Daily Electron Fluence >2 MeV: 1.60E+07 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 3%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: B2.7
ACE Satellite Solar Wind Day Averaged Data for 26 Aug
Speed:NA km/sec Density: NA p/cc Temp: NA K Bz: NA nT
(Courtesy Space Weather Prediction Center, Boulder USA)
ACE data can be incorrect during strong proton events.
-----------------------------------------------------------
IPS Radio and Space Services email: asfc at ips.gov.au
PO Box 1386 WWW: http://www.ips.gov.au
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp.ips.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 IPS. 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://listserver.ips.gov.au/mailman/listinfo/"MAIL_LIST".
Information about training can be obtained from
http://listserver.ips.gov.au/mailman/listinfo/ips-training.
General information is available from
http://listserver.ips.gov.au/mailman/listinfo/ips-info.
More information about the ips-dsgr
mailing list