[Ips-dsgr] IPS Daily Report - 29 May 12 issued 2341 UT on 29 May 2012
rwc
rwc at ips.gov.au
Wed May 30 09:42:01 EST 2012
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/29 MAY 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 29 MAY AND FORECAST FOR 30 MAY - 01 JUNE
STATUS INDICATORS SOL:GREEN MAG:GREEN ION:*YELLOW*
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 29 May: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 29 May: 106/55
1B. SOLAR FORECAST
30 May 31 May 01 Jun
Activity Low Low Low
Fadeouts None expected None expected None expected
10.7cm/SSN 105/54 105/54 105/54
COMMENT: Solar activity is expected to be predominantly Very
Low to Low for 30 May. Solar wind speeds increased slightly over
the past 24 hours and are presently averaging between 400-450
km/s.
-----------------------------------------------------------
2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 29 May: Quiet
Estimated Indices 29 May : A K
Australian Region 2 12001111
Darwin 2 12000112
Townsville 6 22212212
Learmonth 3 21000222
Norfolk Island 2 12000111
Camden 2 12001111
Canberra 1 01000011
Hobart 2 11001111
Estimated Antarctic Regional K Indices 29 May :
Macquarie Island 0 00000000
Casey 4 22111112
Mawson 24 43100127
Observed Regional daily pc3 Indices 29 May :
Darwin 4 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Alice Springs 0 (Quiet)
Gnangara 28 (Quiet to unsettled)
Canberra 9 (Quiet)
Hobart 8 (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 29 May : A
Fredericksburg 5
Planetary 6
Observed AFr/Ap Indices 28 May : A K
Fredericksburg 3
Planetary 5 1001 1232
2B. MAGNETIC FORECAST
Date Ap Conditions
30 May 6 Quiet
31 May 5 Quiet
01 Jun 5 Quiet
-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
29 May Normal-fair Normal-fair Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
30 May Normal-fair Normal-fair Normal-fair
31 May Normal-fair Normal-fair Normal-fair
01 Jun Normal Normal Normal
COMMENT: HF conditions were Fair to Normal during 29 May. Mildly
degraded conditions are expected again at times for the next
couple of days.
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
29 May 66
Observed Australian Regional MUFs
Cocos Island Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Depressed by 20% after local dawn.
Niue Island Region:
Depressed by 15% during local day.
Depressed by 25% during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Depressed by 25% 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: 79
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
30 May 70 Near predicted monthly values/depressed 10 to
20%
31 May 70 Near predicted monthly values/depressed 10 to
20%
01 Jun 75 Near predicted monthly values
COMMENT: HF conditions were Fair to Normal during 29 May with
mildly degraded conditions observed at times at most locations.
MUFs were mostly near predicted monthly values with isolated
depressions of 15-30% observed at times at most locations. Mildly
degraded conditions are expected again at times for the next
couple of days.
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 28 May
Daily Proton Fluence >1 MeV: 4.5E+06
Daily Proton Fluence >10 MeV: 1.0E+05
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: B2.1
ACE Satellite Solar Wind Day Averaged Data for 28 May
Speed: 360 km/sec Density: 5.7 p/cc Temp: 36700 K Bz: -3 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.
To unsubscribe from an IPS mail list either send an email to
"MAIL_LIST"-leave at ips.gov.au or go to
http://listserver.ips.gov.au/mailman/listinfo/"MAIL_LIST".
Information about training can be obtained from
http://listserver.ips.gov.au/mailman/listinfo/ips-training.
General information is available from
http://listserver.ips.gov.au/mailman/listinfo/ips-info.
More information about the ips-dsgr
mailing list