[Ips-dsgr] IPS Daily Report - 30 August 07
rwc
rwc at ips.gov.au
Fri Aug 31 09:36:34 EST 2007
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 30/2330Z AUGUST 2007 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 30 AUGUST AND FORECAST FOR 31 AUGUST - 02 SEPTEMBER
STATUS INDICATORS SOL:GREEN MAG:** YELLOW ** ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 30 Aug: Very low
Flares: None
Observed 10.7 cm flux/Equivalent Sunspot Number for 30 Aug: 72/8
1B. SOLAR FORECAST
31 Aug 01 Sep 02 Sep
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 wind parameters are expected to become disturbed
later today due to the effects of a coronal hole.
-----------------------------------------------------------
2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 30 Aug: Quiet to unsettled
Estimated Indices 30 Aug : A K
Australian Region 7 23312012
Darwin 4 13111012
Townsville 7 22322122
Learmonth 7 13322012
Camden 3 13201001
Canberra 3 11301002
Hobart 8 33312012
Casey(Ant) 7 2-322112
Observed Regional daily pc3 Indices 30 Aug :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Camden 0 (Quiet)
Canberra 0 (Quiet)
Hobart 2 (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 Aug : A
Fredericksburg 5
Planetary 5
Observed AFr/Ap Indices 29 Aug : A K
Fredericksburg 4
Planetary 4 2011 1112
2B. MAGNETIC FORECAST
Date Ap Conditions
31 Aug 12 Quiet with increasing activity late in the day.
Isolated active periods possible.
01 Sep 23 Unsettled to active with an isolated minor storm
period possible.
02 Sep 14 Mostly unsettled.
COMMENT: IPS Geomagnetic Warning 11 was issued on 30 August and
is current for interval 31 August to 2 September. Magnetic activity
is expected to increase later today due to the effects of a recurrent
coronal hole. A weak (15nT) impulse was observed in the IPS
magnetometer data at 0555UT on 30 Aug.
-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
30 Aug Normal-fair Normal-fair Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
31 Aug Normal Normal Normal-fair
01 Sep Normal Normal Normal-fair
02 Sep Normal-fair Normal-fair Normal-fair
COMMENT: Night spread F may degrade communications. Possible
MUF depressions on 2 September.
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
30 Aug 4
Observed Australian Regional MUFs
Equatorial PNG/Niue Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values. Night spread F
observed.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values. Night spread F
observed.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values. Spread F at night
observed.
Predicted Monthly T index for August: 9
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
31 Aug 9 Near predicted monthly values
01 Sep 10 Near predicted monthly values
02 Sep -10 Near predicted monthly values to 30% depressed
at times.
COMMENT: Spread F may degrade night communications.
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 29 Aug
Daily Proton Fluence >1 MeV: 1.6E+06
Daily Proton Fluence >10 MeV: 1.6E+04
Daily Electron Fluence >2 MeV: 1.10E+08 (moderate fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability:11%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A1.0
ACE Satellite Solar Wind Day Averaged Data for 29 Aug
Speed: 523 km/sec Density: 2.4 p/cc Temp: 96900 K Bz: 2 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