[Ips-dsgr] IPS Daily Report - 30 May 09
rwc
rwc at ips.gov.au
Sun May 31 09:43:45 EST 2009
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 30/2330Z MAY 2009 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 30 MAY AND FORECAST FOR 31 MAY - 02 JUNE
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 30 May: Very Low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 30 May: 69/3
1B. SOLAR FORECAST
31 May 01 Jun 02 Jun
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 as
the visible disk remains spotless. Solar wind speed declined
from 390km/s at 0000UT to be 360km/s at the time of this report.
The Bz component of the interplanetary magnetic field ranged
between +/-2nT over the UT day. Expect solar activity to be Very
Low for the next three days.
-----------------------------------------------------------
2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 30 May: Quiet
Estimated Indices 30 May : A K
Australian Region 2 11110111
Darwin 3 21110111
Townsville 6 22221122
Learmonth 4 12120211
Camden 2 11110110
Canberra 0 01000000
Hobart 2 11110111
Casey(Ant) 5 2221121-
Observed Regional daily pc3 Indices 30 May :
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 30 May : A
Fredericksburg 3
Planetary 5
Observed AFr/Ap Indices 29 May : A K
Fredericksburg 4
Planetary 5 1211 2222
2B. MAGNETIC FORECAST
Date Ap Conditions
31 May 4 Quiet
01 Jun 4 Quiet
02 Jun 4 Quiet
COMMENT: Quiet geomagnetic conditions observed over the last
24 hours. Quiet conditions are expected for the next three days.
-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
30 May Normal-fair Normal-fair Fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
31 May Normal-fair Normal-fair Fair
01 Jun Normal-fair Normal-fair Fair
02 Jun Normal-fair Normal-fair Fair
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
30 May -4
Observed Australian Regional MUFs
Equatorial PNG/Niue Region:
Mostly near predicted monthly values,
Depressed by 25% after local dawn.
Northern Australian Region:
Depressed by 15% during local day,
Near predicted monthly values during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
Predicted Monthly T index for May: 4
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
31 May -5 near predicted monthly values/depressed 10 to
20%
01 Jun -5 near predicted monthly values/depressed 10 to
20%
02 Jun 0 Near predicted monthly values
COMMENT: Depressed MUFs observed for Northern AUS and Equatorial
regions during local day as well as continued sporadic E. Mostly
normal HF conditions for Southern AUS/NZ regions with occasional
depressed periods. Disturbed conditions for Antarctic regions.
MUF depressions of 10%-20% expected for low to mid latitudes
for the next 3 days and continued disturbed conditions for Antarctic
regions.
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 29 May
Daily Proton Fluence >1 MeV: 4.6E+05
Daily Proton Fluence >10 MeV: 1.9E+04
Daily Electron Fluence >2 MeV: 5.70E+04 (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 29 May
Speed: 395 km/sec Density: 1.0 p/cc Temp: 77000 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