Subject: IPS Daily Report - 27 December 95
Date: 27 Dec 1995 23:09:47 -0000


SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 27/2330Z DECEMBER 1995 BY IPS RADIO AND SPACE SERVICES
FROM THE REGIONAL WARNING CENTRE (RWC), SYDNEY.
SUMMARY FOR 27 DECEMBER AND FORECAST FOR 28 DECEMBER - 30 DECEMBER
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1A. SOLAR SUMMARY
Activity: Very low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number :  74/11

GOES satellite data for 26 Dec
       Daily Proton Fluence >1 MeV:   5.4E+05
       Daily Proton Fluence >10 MeV:  1.7E+04
       Daily Electron Fluence >2 MeV: 1.2E+08 (moderate)
       X-ray background: A1.0
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.

1B. SOLAR FORECAST
             28 Dec             29 Dec             30 Dec
Activity     Very low           Very low           Very low
Fadeouts     None expected      None expected      None expected

Forecast 10.7 cm flux/Equivalent Sunspot Number for 28 Dec:  75/13

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2A. MAGNETIC SUMMARY
Geomagnetic field at Learmonth: Quiet to unsettled 

Estimated Indices : A   K           Observed A Index 26 Dec      
    Learmonth        7  3122 2222
    Fredericksburg   7                          11
    Planetary        7                          10       

Observed Kp for 26 Dec: 2342 2232
2B. MAGNETIC FORECAST 
DATE      Ap    CONDITIONS
28 Dec    10    quiet to unsettled 
29 Dec    10    quiet to unsettled 
30 Dec    10    quiet to unsettled 

COMMENT: Slightly elevated geomagnetic activity is expected 
over the next few days. 
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3A. GLOBAL HF PROPAGATION SUMMARY
.            LATITUDE BAND
DATE        LOW            MIDDLE         HIGH 
27 Dec      Normal         Normal         Normal         
PCA Event : None

3B. GLOBAL HF PROPAGATION FORECAST
.            LATITUDE BAND
DATE        LOW            MIDDLE         HIGH 
28 Dec      Normal         Normal         Fair
29 Dec      Normal         Normal         Fair
30 Dec      Normal         Normal         Fair

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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
DATE   T index
27 Dec   -12

Observed Australian Regional MUFs:
Darwin: 15% depressed, no data after 0800UT. 
Townsville: 30% depressed 00-02UT, and 15-30% depressed 
during local night hours. 
Sydney and Hobart: 10-15% depressed, sporadic E and spread F 
observed during local night hours. 

Predicted Monthly T index for December: 10

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
DATE   T index  MUFs
28 Dec    -5    10 to 15% below predicted monthly values 
29 Dec    -5    10 to 15% below predicted monthly values 
30 Dec    -5    10 to 15% below predicted monthly values 

-- 
IPS Radio and Space Services      | email: rwc@ips.gov.au
PO Box 5606                       | WWW: http://www.ips.gov.au/rwc/
West Chatswood NSW 2057 AUSTRALIA | FTP: ftp://ftp.ips.gov.au/users/rwc/ 
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