[Ips-wsgr] IPS Weekly Solar and Geophysical Report (28 July 05)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 22 JULY 2005, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
++ RE ISSUE OF REPORT DUE TO MISSED SOLAR FLARE 16 JULY++
1. SUMMARY (15 JULY - 21 JULY)
Date     15    16    17    18    19    20    21
10cm     87    76    74    72    71    72    73
AFr       4    10    15    19     8    14 ( 20)
Aaus      3     8    13    17     5    12 ( 15)
T        24    33    39    29    20    12    17

Solar:        Solar flare activity
Geomagnetic:  Geomagnetic activity observed for Australian Region.
Frequencies:  Australian Ionospheric F2 critical frequencies

15 Jul 
Solar:        low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG Region:
     Near predicted monthly values.
  Northern Australian Region:
     Near predicted monthly values.
  Southern Australian and New Zealand Region:
     Near predicted monthly values.
  Antarctic Region (Casey/Scott Base):
     Proton event in progress, increased absorption observed.

16 Jul 
Solar:        moderate, with an  M1/-- at 0338UT 
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
   Equatorial PNG 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):
     Proton event in progress, increased absorption observed.

17 Jul 
Solar:        low
Geomagnetic:  Quiet to Active 
A weak (12nT) impulse was observed in the IPS magnetometer data at 0137UT 
on 17 Jul.
Frequencies:  
slightly above predicted monthly values

18 Jul 
Solar:        very low
Geomagnetic:  Quiet to Minor Storm 

Frequencies:  
near predicted monthly values

19 Jul 
Solar:        very low
Geomagnetic:  Quiet 

Frequencies:  
slightly below predicted monthly values

20 Jul 
Solar:        very low
Geomagnetic:  Quiet to Active 
A weak (12nT) impulse was observed in the IPS magnetometer data at 1052UT 
on 20 Jul.
Frequencies:  
   Equatorial PNG Region:
      Depressed by 20% during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 15% during local day,
      Near predicted monthly values 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):
      Near predicted monthly values over the UT day with
      periods of significant degradations.

21 Jul 
Solar:        very low
Geomagnetic:  Quiet to active with isolated minor storm recorded 
              on some stations. 

Frequencies:  
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Depressed by 30% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day 
      with periods of significant degradations.

 
COMMENT: Report re-issued due to ommitted flare and solar level on 16 July.

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