[Ips-dsgr] IPS Daily Report - 01 April 02

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SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 01/2330Z APRIL 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 01 APRIL AND FORECAST FOR 02 APRIL - 04 APRIL
STATUS INDICATORS SOL:GREEN   MAG:GREEN     ION: GREEN
http://www.ips.gov.au/asfc/current
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1A. SOLAR SUMMARY
Activity 01 Apr:  Low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 01 Apr: 207/158

http://www.ips.gov.au/learmonth/solar     http://www.ips.gov.au/culgoora

1B. SOLAR FORECAST
             02 Apr             03 Apr             04 Apr
Activity     Low to moderate    Low to moderate    Low to moderate
Fadeouts     Possible           Possible           Possible
10.7cm/SSN   210/161            210/161            205/156
COMMENT: Solar wind speed was at 700km/sec over past 24 hours 
due to coronal hole high speed stream. The north-south component 
of the interplanetary magnetic field has continued to remain 
neutral, reducing effects. 
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2A. MAGNETIC SUMMARY
http://www.ips.gov.au/asfc/aus_geomag

Geomagnetic field for Australian Region 01 Apr: Quiet to Unsettled 

Estimated Indices 01 Apr :  A   K           
   Australian Region       9   2332 2222
      Townsville           8   2332 2123
      Learmonth           11   3332 3222
      Canberra            10   2332 2232
      Hobart              10   2332 2232
      Casey(Ant)          16   3443 2322
      Davis(Ant)           3   1--- ----
    
Observed Regional daily pc3 Indices 01 APR : 
      Darwin              NA
      Townsville          15   (Quiet)
      Learmonth           12   (Quiet)
      Canberra           122   (Severe storm)
      Hobart             137   (Severe storm)
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.

Estimated AFr/Ap Indices 01 Apr : A 
           Fredericksburg        15
           Planetary             17                         

Observed AFr/Ap Indices 31 Mar :  A   K
           Fredericksburg        12
           Planetary             14   2333 3343     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
02 Apr    10    Quiet to Unsettled 
03 Apr    10    Quiet to Unsettled 
04 Apr     6    Quiet 


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3A. GLOBAL HF PROPAGATION SUMMARY
	            Latitude Band
Date        Low            Middle         High 
01 Apr      Normal         Normal         Normal-fair    
PCA Event : No event.

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
02 Apr      Normal         Normal         Normal-Fair
03 Apr      Normal         Normal         Normal-Fair
04 Apr      Normal         Normal         Normal

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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY

http://www.ips.gov.au/asfc/aus_hf

Date   T index
01 Apr   161

Observed Australian Regional MUFs
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      No data available during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
      Enhanced by 25% after local dawn.
   Southern Australian and New Zealand Region:
      Enhanced by 25% during local day,
      Enhanced by 30% during local night.
      Enhanced by 15% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 20% over the UT day.


Predicted Monthly T index for April: 106

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
02 Apr   160    10 to 20% above predicted monthly values 
03 Apr   160    10 to 20% above predicted monthly values 
04 Apr   160    10 to 20% above predicted monthly values 

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5. SPACE ENVIRONMENT SUMMARY

GOES satellite data for 31 Mar
       Daily Proton Fluence >1 MeV:   4.7E+05
       Daily Proton Fluence >10 MeV:  1.1E+04
       Daily Electron Fluence >2 MeV: 2.50E+05 (normal)
       X-ray background: C1.4
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.

ACE Satellite Solar Wind Day Averaged Data for 31 Mar
Speed: 693 km/sec  Density:    2.9 p/cc  Temp:   391000 K  Bz:   3 nT
http://sec.noaa.gov/ace/MAG_SWEPAM_24h.html

(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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IPS Radio and Space Services      | email: asfc at ips.gov.au
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