[Ips-dsgr] IPS Daily Report - 31 March 09
rwc
rwc at ips.gov.au
Wed Apr 1 10:37:16 EST 2009
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 31/2330Z MARCH 2009 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 31 MARCH AND FORECAST FOR 01 APRIL - 03 APRIL
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 31 Mar: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 31 Mar: 71/6
1B. SOLAR FORECAST
01 Apr 02 Apr 03 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 as
the visible solar disc remains spotless. Solar wind velocity
ranged between 380km/s and 420km/s over the UT day. Solar activity
is expected to remain at Very Low levels over the next 3 days.
-----------------------------------------------------------
2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 31 Mar: Quiet to Unsettled
Estimated Indices 31 Mar : A K
Australian Region 5 22113011
Darwin 2 11112001
Townsville 7 22223122
Learmonth 3 21113000
Camden - --------
Canberra 2 11012000
Hobart 3 12113000
Casey(Ant) 7 23322111
Observed Regional daily pc3 Indices 31 Mar :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Alice_Springs 0 (Quiet)
Camden NA
Gnangara 2 (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 31 Mar : A
Fredericksburg 3
Planetary 5
Observed AFr/Ap Indices 30 Mar : A K
Fredericksburg 3
Planetary 4 1100 2111
2B. MAGNETIC FORECAST
Date Ap Conditions
01 Apr 5 Quiet
02 Apr 5 Quiet
03 Apr 5 Quiet
COMMENT: Quiet geomagnetic conditions observed over the last
24 hours. Similar conditions are expected for the next three
days.
-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
31 Mar Normal-fair Normal-fair Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
01 Apr Normal-fair Normal-fair Normal-fair
02 Apr Normal-fair Normal-fair Normal-fair
03 Apr Normal-fair Normal-fair Normal-fair
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
31 Mar -2
Observed Australian Regional MUFs
Equatorial PNG/Niue Region:
No data available during local day,
Depressed by 15% during local night.
Northern Australian Region:
Depressed by 15% during local day,
Depressed by 15% during local night.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values,
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
Predicted Monthly T index for March: 3
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
01 Apr 0 near predicted monthly values/depressed 10 to
20%
02 Apr 0 near predicted monthly values/depressed 10 to
20%
03 Apr 0 near predicted monthly values/depressed 10 to
20%
COMMENT: Depressed conditons observed during local day and night
for Equatorial/Northern AUS regions over the last 24h hours.
Mostly normal conditions for and Southern AUS/NZ and Antarctic
regions. Similar conditions are expected for the next 3 days,
with possible MUF depressions of 10%-20% for low to mid latitudes.
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 30 Mar
Daily Proton Fluence >1 MeV: 5.1E+05
Daily Proton Fluence >10 MeV: 1.9E+04
Daily Electron Fluence >2 MeV: 5.10E+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 30 Mar
Speed: 418 km/sec Density: 2.1 p/cc Temp: 70800 K Bz: 1 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