[Ips-dsgr] IPS Daily Report - 23 August 08
rwc
rwc at ips.gov.au
Sun Aug 24 09:31:57 EST 2008
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 23/2330Z AUGUST 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 23 AUGUST AND FORECAST FOR 24 AUGUST - 26 AUGUST
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 23 Aug: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 23 Aug: 68/2
1B. SOLAR FORECAST
24 Aug 25 Aug 26 Aug
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 68/2 68/2 68/2
COMMENT: No active regions on the visible solar disk. Solar wind
parameters remain at nominal levels.
-----------------------------------------------------------
2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 23 Aug: Quiet
Estimated Indices 23 Aug : A K
Australian Region 3 11111111
Darwin 3 11111111
Townsville 6 22212222
Learmonth 1 11001100
Camden 1 01001001
Canberra 0 00001000
Hobart 1 1001200-
Casey(Ant) 4 12211111
Observed Regional daily pc3 Indices 23 Aug :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Alice_Springs 0 (Quiet)
Camden 0 (Quiet)
Gnangara 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 Space Environment Research Center, Japan.
Estimated AFr/Ap Indices 23 Aug : A
Fredericksburg 2
Planetary 5
Observed AFr/Ap Indices 22 Aug : A K
Fredericksburg 2
Planetary 4 1111 1112
2B. MAGNETIC FORECAST
Date Ap Conditions
24 Aug 5 Quiet
25 Aug 4 Quiet
26 Aug 4 Quiet
COMMENT: Solar wind parameters remain at nominal values. The
geomagnetic field was quiet over the UT day. Expect generally
quiet conditions next three days. Chance of isolated unsettled
intervals at high latitudes day one.
-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
23 Aug Normal-fair Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
24 Aug Normal-fair Normal Normal
25 Aug Normal-fair Normal Normal
26 Aug Normal-fair Normal Normal
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
23 Aug -7
Observed Australian Regional MUFs
Equatorial PNG/Niue Region:
Near predicted monthly values during local day,
Depressed by 15% during local night/after local dawn.
Northern Australian Region:
Depressed by 15% over the UT day.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Mostly near predicted monthly values.
Predicted Monthly T index for August: 2
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
24 Aug -5 Near predicted monthly values
25 Aug -5 Near predicted monthly values
26 Aug -5 Near predicted monthly values
COMMENT: Ionospheric conditions were mostly normal over the UT
day with variable depressions throughout the Equatorial/N Aus
regions due to low solar activity. Significant depressions observed
around local dawn in PNG and Indian Ocean regions. Expect mostly
normal conditions next three days with continuing variable depressions
in the Equatorial region.
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 22 Aug
Daily Proton Fluence >1 MeV: 8.3E+05
Daily Proton Fluence >10 MeV: 1.9E+04
Daily Electron Fluence >2 MeV: 1.60E+08 (moderate fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability:14%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A1.0
ACE Satellite Solar Wind Day Averaged Data for 22 Aug
Speed: 371 km/sec Density: 4.7 p/cc Temp: 40900 K Bz: -1 nT
(Courtesy Space Environment 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.
Occasionally IPS sends email promoting IPS products and
services to its mailing list customers. If you do not wish to
receive this promotional material please email
no-spam at ips.gov.au with the subject header:UNSUBSCRIBE"
More information about the ips-dsgr
mailing list