[Ips-dsgr] IPS Daily Report - 11 May 13 issued 2336 UT on 11 May 2013

rwc rwc at ips.gov.au
Sun May 12 09:36:53 EST 2013


SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/11 MAY 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 11 MAY AND FORECAST FOR 12 MAY - 14 MAY
STATUS INDICATORS SOL:** YELLOW **   MAG:GREEN     ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 11 May:  Low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 11 May: 137/91


1B. SOLAR FORECAST
             12 May             13 May             14 May
Activity     Low to moderate    Low to moderate    Low to moderate
Fadeouts     Possible           Possible           Possible
10.7cm/SSN   130/84             125/78             125/78

COMMENT: Solar activity was Low over the last 24 hours with a 
C1.3 flare from region 1744 at 0256UT and a C8.0 flare from region 
1746 at 1948UT. Solar activity is expected to range between Low 
to Moderate for the next 3 days with the chance of M-class events. 
The Interplanetary Magnetic Field (IMF) Bz component ranged between 
+/-4nT over the UT day. Solar wind speed was 375km/s at the time 
of this report.

-----------------------------------------------------------
2A. MAGNETIC SUMMARY

Geomagnetic field for Australian Region 11 May: Quiet

Estimated Indices 11 May : A   K           
   Australian Region       1   11110001
      Cocos Island         1   -1110001
      Darwin               1   11100001
      Townsville           5   -2221122
      Learmonth            1   11011001
      Alice Springs        1   11100001
      Culgoora             2   11111001
      Gingin               0   -1010000
      Camden               1   11100001
      Canberra             0   00000000
      Hobart               3   11111111    

Estimated Antarctic Regional K Indices 11 May :
      Macquarie Island     2   30010000
      Casey                9   43321111
      Mawson               9   52110022

Observed Regional daily pc3 Indices 11 May : 
      Darwin               0   (Quiet)
      Townsville           0   (Quiet)
      Learmonth            0   (Quiet)
      Alice Springs        0   (Quiet)
      Gingin               0   (Quiet)
      Canberra             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 International Center for Space Weather 
Science and Education, Japan.


Estimated AFr/Ap Indices 11 May : A 
           Fredericksburg         4
           Planetary              5                         

Observed AFr/Ap Indices 10 May :  A   K
           Fredericksburg         4
           Planetary              4   1111 2111     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
12 May     4    Quiet
13 May     7    Quiet
14 May     7    Quiet

COMMENT: Quiet conditions observed over the last 24 hours. Quiet 
conditions expected for the next 24 hours with possible Unsettled 
conditions for 13May and 14May due to a slight increase in solar 
wind parameters caused by a minor coronal hole.

-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
	            Latitude Band
Date        Low            Middle         High 
11 May      Normal         Normal         Normal         

PCA Event : No event.

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
12 May      Normal         Normal         Normal-fair
13 May      Normal         Normal         Normal-fair
14 May      Normal         Normal         Normal-fair

COMMENT: Mostly Normal conditions expected with the chance of 
occasional short-wave fadeouts from M class flares.

-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY


Date   T index
11 May    72

Observed Australian Regional MUFs
   Cocos Island Region:
      Enhanced by 35% during local day.
      Enhanced by 15% during local night.
   Niue Island Region:
      No data available during local day.
      No data available during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

Predicted Monthly T index for May:  69

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
12 May    75    Near predicted monthly values
13 May    75    Near predicted monthly values
14 May    70    Near predicted monthly values

COMMENT: Mostly normal ionospheric support observed over the 
AUS/NZ region for the last 24 hours with notable enhancements 
for IPS Cocos Is. between 00UT-12UT. Depressed conditions observed 
during local night for Northern AUS and Southern AUS/NZ regions. 
MUF's expected to be near predicted monthly values over the next 
3 days with chance of depressed periods for Southern AUS/NZ and 
Northern AUS regions during local night and enhanced periods 
for Cocos and Niue stations during local day. Short wave fadeouts 
possible with reasonable chance of M flares from active regions.

-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY

GOES satellite data for 10 May
       Daily Proton Fluence >1 MeV:   9.7E+04
       Daily Proton Fluence >10 MeV:  1.1E+04
       Daily Electron Fluence >2 MeV: 3.40E+07   (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 5%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: B6.7

ACE Satellite Solar Wind Day Averaged Data for 10 May
Speed: 430 km/sec  Density:    1.9 p/cc  Temp:    44900 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
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
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