[Ips-wsgr] IPS Weekly Solar and Geophysical Report (04 June 10)
rwc
rwc at ips.gov.au
Fri Jun 4 11:48:54 EST 2010
SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT
ISSUED ON 04 JUNE 2010, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (28 MAY - 03 JUNE)
Date 28 29 30 31 01 02 03
10cm 73 73 73 72 73 74 75
AFr 7 15 14 14 10 4 ( 10)
Aaus 11 18 14 10 11 5 ( 11)
T 8 25 9 -1 0 8 6
Solar: Solar flare activity
Geomagnetic: Geomagnetic activity observed for Australian region.
Frequencies: Australian ionospheric F2 critical frequencies
28 May
Solar: Very low
Geomagnetic: Quiet to active. A weak (15nT) impulse was
observed in the IPS magnetometer data at 0258 UT.
Frequencies:
Cocos Island Region:
Depressed by 20% during local day. Near predicted monthly
values during local night.
Niue Island Region:
Depressed by 25% 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.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
29 May
Solar: Very low
Geomagnetic: Quiet to minor storm. A weak (31nT) impulse was
observed in the IPS magnetometer data at 0759 UT.
Frequencies:
Cocos Island Region:
Mostly near predicted monthly values.
Niue Island Region:
Depressed by 20% during local day. Enhanced by 20%
during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Enhanced by 40% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 30% over the UT day.
30 May
Solar: Very low
Geomagnetic: Quiet to active
Frequencies:
Cocos Island Region:
Near predicted monthly values.
Niue Island Region:
Depressed by 15% during local day. Near predicted
monthly values during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Depressed by 15% during local day. Near predicted
monthly values during local night. Depressed by 25%
after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 35% over the UT day.
31 May
Solar: Very low
Geomagnetic: Quiet to unsettled
Frequencies:
Cocos Island Region:
Near predicted monthly values with enhancements to 35%
03-10 UT and depressions to 30% 12-16 UT.
Niue Island Region:
Near predicted monthly values to 20% depressed.
Northern Australian Region:
Near predicted monthly values to 30% depressed.
Enhancments to 30% 05-09 UT at Darwin. Spread F
observed 13-20 UT.
Southern Australian and New Zealand Region:
Mostly 15-35% depressed. F region trace not observed
on ionograms at times during the period 10-20 UT at
Canberra, Hobart and Sydney due to depressed state of
the F region. Spread F observed at Brisbane 10-18
UT.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Mostly depressed 15-40%.
01 Jun
Solar: Very low
Geomagnetic: Quiet to active
Frequencies:
Cocos Island Region:
Near predicted monthly values with depressions to 25%
12-16 UT and enhancements to 30% 09-10 UT. Spread F
16-21 UT.
Niue Island Region:
Depressed 15-30%.
Northern Australian Region:
Mostly 15-30% depressed with some night spread F.
Southern Australian and New Zealand Region:
Mostly 15-30% depressed. Night spread F observed.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Mostly 30-40% depressed.
02 Jun
Solar: Very low
Geomagnetic: Quiet to unsettled
Frequencies:
Cocos Island Region:
Near predicted monthly values with enhancements to 35%
03-10 and 13 UT. Sporadic E observed 15-20 UT.
Niue Island Region:
Near predicted monthly values 00-01 and 08-18 UT,
otherwise depressed to 30%.
Northern Australian Region:
Mostly 15-30% depressed with night spread F. No
Townsville data 09-23 UT.
Southern Australian and New Zealand Region:
Near predicted monthly values to 20% depressed. Night
spread F observed at all stations.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Mostly 15-30% depressed.
03 Jun
Solar: Very low
Geomagnetic: Quiet to unsettled with active levels 09-12 UT.
Frequencies:
Cocos Island Region:
Near predicted monthly values 00-01 UT. No data
thereafter.
Niue Island Region:
Mostly depressed 15-30%. Night spread F observed 13-17
UT.
Northern Australian Region:
Near predicted monthly values 00-01, 04-06, 18-22 UT
with depressions to 30% at other times. Spread F
observed 13-21 UT. No data for Townsville.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values to 15% depressed.
Occasional depressions to 30%. Night spread F
observed. No data for Christchurch.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Mostly 15-30% depressed.
2. FORECAST (04 JUNE - 10 JUNE)
Solar: Low
Geomagnetic: Quiet to unsettled conditions. Isolated active
levels possible 07 to 08 June.
Frequencies:
MUFs near predicted monthly values to 20% depressed.
Depressions to 30% on 08 June.
For an explanation of some of the terms in this report, go to
http://www.ips.gov.au/1/2/1.
IPS Radio and Space Services email: asfc at ips.gov.au
PO Box 1386 WWW: http://www.ips.gov.au
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp.ips.gov.au
tel: +61 2 9213 8010 fax: +61 2 9213 8060
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