[Ips-dsgr] IPS Daily Report - 04 April 09
rwc
rwc at ips.gov.au
Sun Apr 5 09:47:44 EST 2009
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 04/2330Z APRIL 2009 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 04 APRIL AND FORECAST FOR 05 APRIL - 07 APRIL
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 04 Apr: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 04 Apr: 70/5
1B. SOLAR FORECAST
05 Apr 06 Apr 07 Apr
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 70/5 70/5 70/5
COMMENT: Solar activity was Very Low over the last 24 hours.
Solar wind velocity was ~280km/s over the UT day and Bz ranged
between +3nT/-2nT. Solar activity is expected to remain at Very
Low levels over the next 3 days as the visible solar disc remains
spotless.
-----------------------------------------------------------
2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 04 Apr: Quiet
Estimated Indices 04 Apr : A K
Australian Region 2 11112001
Darwin 2 11101002
Townsville 5 12212112
Learmonth 2 11012000
Camden - --------
Canberra 1 10002000
Hobart 0 00002000
Casey(Ant) 4 22211111
Observed Regional daily pc3 Indices 04 Apr :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Alice_Springs 0 (Quiet)
Camden NA
Gnangara 6 (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 04 Apr : A
Fredericksburg 1
Planetary 3
Observed AFr/Ap Indices 03 Apr : A K
Fredericksburg 2
Planetary 2 0000 1111
2B. MAGNETIC FORECAST
Date Ap Conditions
05 Apr 5 Quiet
06 Apr 5 Quiet
07 Apr 5 Quiet
COMMENT: Quiet geomagnetic conditions observed over the last
24 hours. With no increase in the solar wind velocity now expected,
Quiet geomagnetic conditions are forecast for the next 3 days.
-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
04 Apr Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
05 Apr Normal Normal Normal-fair
06 Apr Normal Normal Normal-fair
07 Apr Normal Normal Normal-fair
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
04 Apr 4
Observed Australian Regional MUFs
Equatorial PNG/Niue Region:
Depressed by 15% during local day,
Depressed by 20% during local night.
Northern Australian Region:
Depressed by 20% during local day,
Near predicted monthly values during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 20% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
Predicted Monthly T index for April: 3
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
05 Apr 5 near predicted monthly values
06 Apr 5 near predicted monthly values
07 Apr 5 near predicted monthly values
COMMENT: Normal HF conditions observed for all regions over the
last 24 hours with some depressed periods for Northern AUS/Equatorial
regions and enhancements for Southern AUS/NZ regions during local
night. Mostly normal ionospheric support is expected for the
next 3 days.
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 03 Apr
Daily Proton Fluence >1 MeV: 5.1E+05
Daily Proton Fluence >10 MeV: 2.0E+04
Daily Electron Fluence >2 MeV: 2.70E+06 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 1%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A1.0
ACE Satellite Solar Wind Day Averaged Data for 03 Apr
Speed: 289 km/sec Density: 1.8 p/cc Temp: 10600 K Bz: 0 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.
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