solar and heliospheric report
DESCRIPTION
Solar and Heliospheric Report. J. Ryan. :Data_list: 20050602_boumag_1m.txt :Created: 2005 Jun 02 1301 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Environment Center. # Please send comments and suggestions to [email protected] # - PowerPoint PPT PresentationTRANSCRIPT
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Solar and Heliospheric Report
J. Ryan
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• :Data_list: 20050602_boumag_1m.txt• :Created: 2005 Jun 02 1301 UTC• # Prepared by the U.S. Dept. of Commerce, NOAA, Space Environment Center.• # Please send comments and suggestions to [email protected] • # • # Label: H - component = Magnetometer variations parallel to the • # surface along the magnetic north-south direction. • # Label: D - component = Magnetometer variations parallel to the • # surface, transverse to H and eastwards. • # Units: nanotesla (nT)• # Source: Boulder NOAA Magnetometer• # Missing data: -1.00e+05• #• # 1-minute Boulder NOAA Magnetometer Components• #• # Modified Seconds• # UTC Date Time Julian of the• # YR MO DA HHMM Day Day H D• #--------------------------------------------------------• 2005 06 02 0000 53523 0 -1.97e+01 -2.83e+01• 2005 06 02 0001 53523 60 -1.97e+01 -2.83e+01• 2005 06 02 0002 53523 120 -1.96e+01 -2.82e+01• 2005 06 02 0003 53523 180 -1.98e+01 -2.82e+01• 2005 06 02 0004 53523 240 -1.98e+01 -2.82e+01
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Upcoming Events
• Singapore AOGS meeting– (Pacific rim AGU meeting)
• ICRC
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2005 January 20 GLE
• Biggest GLE since 1956
• Very anisotropic– Some stations measured no increase.
• Associated with X7 flare– Big, but not huge– Strong and fast CME—producing shock
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Relatively stable period for particles during flare activity
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Tail of event has different spectrum (depth dependent)
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Science Questions
• Climax/Milagro appears to be in the cross hairs.
• Spectrum of prompt particles.
• Spectrum and interpretation of secondary bump
• Interpretation of tail kink.
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Outstanding Tasks
• Interplanetary conditions?– Solar wind speed (guiding center path)– Turbulence level (rise time) (appears to be low)
• CME lift-off time and speed. (Release time)• Hard X-ray onset time.• Signals from other NMs to ‘estimate’
anisotropy. (1/cos )• Instantaneous cutoff ridigities for
Climax/Fenton Hill/MW/Durham
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Halloween Event
3800
3600
3400
3200
3000
2800
10/18/03 10/23/03 10/28/03 11/2/03
UT
1.35
1.30
1.25
1.20 2003 October/November
Climax Milagro
1.5%
6%
3.2%/day
4.3%/day
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Science Questions
• Spectrum of Decrease
• Anisotropy of Decrease– Depends on magnetic fields
1. In front of shock
2. Behind shock
3. Inside ejecta
4. Behind ejecta
– Should see A change in time.
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Tasks
• Need a muon fitter to study triggered events.
• Need correction factors for long periods, i.e., days.– Which way does temperature effect go and
how large is it?
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Potential Author Issues
• Will necessarily rely on input from other investigators.
• Can assess how much we can do on our own without new info from outsiders.
• Subsequent publications will involve others, but Milagro data (mostly) may be published.
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