[Ips-dsgr] IPS Daily Report - 28 January 16 issued 2330 UT on 28 Jan 2016 [SEC=UNCLASSIFIED]

Regional Warning Centre rwc at ips.gov.au
Fri Jan 29 10:30:29 EST 2016


SUBJ: SWS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/28 JANUARY 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 28 JANUARY AND FORECAST FOR 29 JANUARY - 31 JANUARY
STATUS INDICATORS SOL:** YELLOW **   MAG:GREEN     ION: GREEN
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1A. SOLAR SUMMARY
Activity 28 Jan:  Moderate

Flares    Max     Fadeout    Freq.  Sectors
  C9.0    1202UT  probable   lower  European

Observed 10.7 cm flux/Equivalent Sunspot Number for 28 Jan: 110/60


1B. SOLAR FORECAST
             29 Jan             30 Jan             31 Jan
Activity     Low to moderate    Low to moderate    Low to moderate
Fadeouts     Possible           Possible           Possible
10.7cm/SSN   110/60             108/58             105/54

COMMENT: Several C-class flares were observed from region 2488(N04W55), 
the largest being a C9.6 flare at 1202UT. More C class flares 
are likely with a chance of an isolated M class flare during 
29-31 Jan. The flare activity was associated with two narrow 
fast CMEs observed in SOHO LASCO imagery around 0720UT and 1220UT. 
This CME activity does not seem to be earthward directed. No 
other Earthward directed CMEs were noted in available SOHO imagery 
for 28 Jan. Solar wind speed remained under 400km/s during the 
UT day today and the Bz component of IMF varied between +/-7 
nT with a sustained southward period between 0600-1000UT. High 
solar wind stream from a large polar coronal hole may enhance 
solar wind speeds in the coming days.

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2A. MAGNETIC SUMMARY

Geomagnetic field for Australian Region 28 Jan: Quiet to Unsettled

Estimated Indices 28 Jan : A   K           
   Australian Region       5   11231111
      Cocos Island         2   01121000
      Darwin               3   11121111
      Townsville           6   22231111
      Learmonth            4   11221211
      Norfolk Island       6   11331012
      Culgoora             5   11231111
      Canberra             3   01221101
      Launceston           6   01331211    

Estimated Antarctic Regional K Indices 28 Jan :
      Macquarie Island    15   01553110
      Casey               12   24432112
      Mawson              12   32233214

Observed Regional daily pc3 Indices 28 Jan : 
      Darwin              NA
      Townsville          12   (Quiet)
      Learmonth            0   (Quiet)
      Alice Springs        0   (Quiet)
      Gingin               0   (Quiet)
      Canberra             2   (Quiet)
      Melbourne            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 International Center for Space Weather 
Science and Education, Japan.


Estimated AFr/Ap Indices 28 Jan : A 
           Fredericksburg         9
           Planetary             10                         

Observed AFr/Ap Indices 27 Jan :  A   K
           Fredericksburg         3
           Planetary              2   1201 0001     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
29 Jan    12    Quiet to Unsettled
30 Jan    10    Quiet to Unsettled
31 Jan     5    Quiet

COMMENT: Geomagnetic activity was at Quiet to Unsettled levels 
throughout the Australian region during the UT day, 28Jan. Unsettled 
periods observed ~ 0900UT in response to a Bz extended southward 
excussion 0600-1000UT. Geomagnetic activity is expected to remain 
Quiet to Unsettled 29-30 Jan in the Australian region. Possible 
isolated Active levels at higher latitudes on 29 Jan especially 
if IMF Bz has an extended southward excursion.

-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
	            Latitude Band
Date        Low            Middle         High 
28 Jan      Normal         Normal         Normal         

PCA Event : No event.

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
29 Jan      Normal         Normal         Normal
30 Jan      Normal         Normal         Normal
31 Jan      Normal         Normal         Normal

COMMENT: Mostly normal conditions for HF radio propagation 29-31 
Jan. Possible Brief shortwave fadeouts.

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


Date   T index
28 Jan    65

Observed Australian Regional MUFs
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      No data available.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

Monthly T index:
Month  T index
Dec      55
Jan      61
Feb      61

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
29 Jan    60    Near predicted monthly values
30 Jan    60    Near predicted monthly values
31 Jan    65    Near predicted monthly values

COMMENT: Conditions for HF radio propagation were mainly near 
predicted values for the UT day, 28Jan. Noted isolated periods 
of sporadic E throughout the Australian region. Expect similar 
conditions to prevail over the next few days. Possible Brief 
shortwave fadeouts over the forecast period.

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

GOES satellite data for 27 Jan
       Daily Proton Fluence >1 MeV:   8.5E+05
       Daily Proton Fluence >10 MeV:  1.3E+04
       Daily Electron Fluence >2 MeV: 5.80E+07   (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 7%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: B3.1

ACE Satellite Solar Wind Day Averaged Data for 27 Jan
Speed: 359 km/sec  Density:    4.2 p/cc  Temp:    35500 K  Bz:   2 nT

(Courtesy Space Weather Prediction Center, Boulder USA)
ACE data can be incorrect during strong proton events.
-----------------------------------------------------------

Space Weather Services              email: asfc at ips.gov.au
Bureau of Meteorology
PO Box 1386                         WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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