[Ips-dsgr] IPS Daily Report - 23 February 12 issued 2340 UT on 23 Feb 2012
rwc
rwc at ips.gov.au
Fri Feb 24 10:41:01 EST 2012
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 23/2330Z FEBRUARY 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 23 FEBRUARY AND FORECAST FOR 24 FEBRUARY - 26 FEBRUARY
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 23 Feb: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 23 Feb: 103/52
1B. SOLAR FORECAST
24 Feb 25 Feb 26 Feb
Activity Very Low Very Low Very Low
Fadeouts None expected None expected None expected
10.7cm/SSN 105/54 105/54 100/48
COMMENT: Solar activity was very low today. Two non-earthward
directed CMEs were observed. Solar wind showed a gradual decline
from 500 and 400 km/s during the UT day today as the coronal
hole effect started to weaken. The Bz component of IMF varied
between +/-4 nT for most parts of the UT day. The effect of
the currently geoeffective coronal hole is expected to further
weaken over the next 24 hours. Very Low levels of solar activity
may be expected for the next 3 days.
-----------------------------------------------------------
2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 23 Feb: Quiet
Estimated Indices 23 Feb : A K
Australian Region 4 11121112
Darwin 5 22221112
Townsville 7 22221223
Learmonth - --------
Norfolk Island 3 11110013
Camden 3 11121012
Canberra 2 11120011
Hobart 3 11121111
Estimated Antarctic Regional K Indices 23 Feb :
Macquarie Island 2 00130001
Casey 10 24421112
Mawson 9 22211105
Davis 12 23332224
Observed Regional daily pc3 Indices 23 Feb :
Darwin 3 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Alice Springs 0 (Quiet)
Gnangara 0 (Quiet)
Canberra 10 (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 23 Feb : A
Fredericksburg 2
Planetary 3
Observed AFr/Ap Indices 22 Feb : A K
Fredericksburg 9
Planetary 9 3322 2211
2B. MAGNETIC FORECAST
Date Ap Conditions
24 Feb 6 Quiet
25 Feb 5 Quiet
26 Feb 5 Quiet
COMMENT: Geomagnetic activity stayed mostly at quiet levels
today. Nearly similar geomagnetic conditions may be expected
for the next 3 days.
-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
23 Feb Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
24 Feb Normal Normal Normal
25 Feb Normal Normal Normal
26 Feb Normal Normal Normal
COMMENT: Mostly normal HF conditions were observed on most
locations today. Nearly similar conditions may be expected
for the next three days.
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
23 Feb 81
Observed Australian Regional MUFs
Cocos Island Region:
Enhanced by 20% during local day.
Near predicted monthly values during local night.
Niue Island Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Northern Australian Region:
Near predicted monthly values.
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 February: 80
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
24 Feb 80 Near predicted monthly values
25 Feb 80 Near predicted monthly values
26 Feb 80 Near predicted monthly values
COMMENT: Mostly normal HF conditions were observed today on
most locations. Nearly similar conditions may be expected
for the next three days.
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 22 Feb
Daily Proton Fluence >1 MeV: 3.0E+05
Daily Proton Fluence >10 MeV: 1.3E+04
Daily Electron Fluence >2 MeV: 3.90E+07 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 6%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: B1.8
ACE Satellite Solar Wind Day Averaged Data for 22 Feb
Speed: 515 km/sec Density: 0.8 p/cc Temp: 235000 K Bz: 2 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