CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20111580914
Observation time: 06/07/2011 158.38516 0914 [UT]

Wind spacecraft

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Asymptotic parameters
Shock front normals
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Wave speed and Mach numbers
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Selected
Simple methods
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Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2011
Fractional day of year 158.385156
Arrival time of shock [seconds of day] 33277.5 ± 30.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 249.881
Y GSE location of spacecraft [Re] -73.461
Z GSE location of spacecraft [Re] 19.435
Upstream plasma points selected for analysis 0004
Upstream field points selected for analysis 0128
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0114
Minimum chisq/dof for RH8,RH9,RH10 7.01, 33.16, 50.12
Event added to database
Fri Sep 20 10:34:39 2013
Event last processed
Tue Sep 24 10:14:13 2013
Method selected
RH08
Propagation delay to Earth [minutes]
805.420 ± 17990.955

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -388.6 ± 0.5 -405.5 ± 0.6
Vy GSE [km/s] -0.4 ± 0.8 -17.2 ± 1.5
Vz GSE [km/s] 0.2 ± 1.4 -7.4 ± 0.3
Wi [km/s] 23.7 ± 1.0 25.7 ± 0.3
We [km/s] 749.2 ± 32.9 811.2 ± 10.8
Ni [n/cc] 2.4 ± 0.1 3.6 ± 0.1
Bx GSE [nT] 3.7 ± 0.0 4.3 ± 0.0
By GSE [nT] -1.7 ± 0.2 -3.2 ± 0.0
Bz GSE [nT] -0.2 ± 0.0 -0.6 ± 0.0
Plasma Beta
0.178 ± 0.199
0.175 ± 0.178
Sound Speed [km/s]
30.59 ± 1.34
33.12 ± 0.44
Alfven Speed [km/s]
56.41 ± 2.46
61.36 ± 0.82

Best values of shock front normal for each method (About, Top)

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.932 ± 0.013 -0.316 ± 0.034 -0.175 ± 0.173 -10.05 ± 2.22 198.74 ± 2.06
VC -0.676 ± 0.027 -0.670 ± 0.027 -0.307 ± 0.297 -17.87 ± 3.39 224.76 ± 1.99
MX1 -0.929 ± 0.015 -0.305 ± 0.030 -0.210 ± 0.207 -12.11 ± 3.34 198.20 ± 1.83
MX2 -0.928 ± 0.015 -0.304 ± 0.030 -0.214 ± 0.211 -12.37 ± 3.38 198.13 ± 1.83
MX3 -0.927 ± 0.016 -0.300 ± 0.029 -0.226 ± 0.222 -13.04 ± 3.61 197.96 ± 1.80
RH08 -0.006 ± 0.037 0.257 ± 0.019 -0.966 ± 0.337 -75.12 ± 1.12 91.25 ± 8.32
RH09 -0.949 ± 0.021 -0.264 ± 0.061 -0.173 ± 0.171 -9.97 ± 4.14 195.54 ± 3.68
RH10 -0.949 ± 0.022 -0.264 ± 0.068 -0.173 ± 0.171 -9.97 ± 4.03 195.54 ± 4.10
Average -0.787 -0.271 -0.305 -20.064 187.516
Median -0.928 -0.300 -0.210 -12.111 198.133
Deviation 0.329 0.252 0.271 22.399 40.079

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 44.8 ± 2.8 436.8 ± 2.2 1.45 ± 0.04
VC 71.1 ± 2.7 346.4 ± 2.6 1.45 ± 0.04
MX1 44.8 ± 2.7 435.5 ± 2.2 1.45 ± 0.04
MX2 44.8 ± 2.7 435.2 ± 2.2 1.45 ± 0.04
MX3 44.8 ± 2.7 434.6 ± 2.1 1.45 ± 0.04
RH08 86.1 ± 0.3 11.5 ± 0.7 1.45 ± 0.04
RH09 41.7 ± 2.8 441.1 ± 2.1 1.45 ± 0.04
RH10 41.7 ± 2.8 441.1 ± 7.0 1.45 ± 0.04
Average 52.5 372.8 1.45
Median 44.8 435.5 1.45
Deviation 16.7 149.4 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 74.3 ± 0.6 20.1 ± 0.6 40.1 ± 1.7 61.0 ± 1.9 3.70 ± 0.13 1.22 ± 0.04
VC 83.5 ± 0.7 8.8 ± 0.2 18.3 ± 0.8 63.6 ± 1.8 9.50 ± 0.33 1.31 ± 0.04
MX1 74.4 ± 0.6 20.1 ± 0.6 40.0 ± 1.7 61.0 ± 1.9 3.71 ± 0.14 1.22 ± 0.04
MX2 74.4 ± 0.6 20.1 ± 0.6 40.0 ± 1.7 61.0 ± 1.9 3.71 ± 0.14 1.22 ± 0.04
MX3 74.4 ± 0.6 20.1 ± 0.6 40.0 ± 1.7 61.0 ± 1.9 3.71 ± 0.14 1.22 ± 0.04
RH8 9.6 ± 1.5 1.8 ± 0.0 3.9 ± 0.2 64.2 ± 1.7 5.22 ± 0.91 0.15 ± 0.02
RH9 72.2 ± 0.6 21.3 ± 0.7 42.1 ± 1.8 60.6 ± 2.0 3.40 ± 0.13 1.19 ± 0.04
RH10 72.2 ± 0.6 21.3 ± 0.7 42.1 ± 1.8 60.6 ± 2.0 3.40 ± 0.13 1.19 ± 0.04
Average 66.9 16.7 33.3 61.6 4.5 1.1
Median 74.4 20.1 40.0 61.0 3.7 1.2
Deviation 23.4 7.3 14.3 1.4 2.1 0.4

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 51.9 ± 0.9 21.8 ± 0.2 43.6 ± 0.6 66.2 ± 0.7 2.38 ± 0.06 0.78 ± 0.02
VC 58.5 ± 1.2 9.6 ± 0.1 19.9 ± 0.3 69.1 ± 0.7 6.13 ± 0.17 0.85 ± 0.03
MX1 52.0 ± 0.8 21.8 ± 0.2 43.5 ± 0.6 66.2 ± 0.7 2.39 ± 0.06 0.78 ± 0.02
MX2 52.0 ± 0.8 21.8 ± 0.2 43.5 ± 0.6 66.2 ± 0.7 2.39 ± 0.06 0.78 ± 0.02
MX3 52.0 ± 0.8 21.8 ± 0.2 43.5 ± 0.6 66.3 ± 0.7 2.39 ± 0.06 0.78 ± 0.02
RH8 6.4 ± 0.5 2.0 ± 0.0 4.2 ± 0.1 69.7 ± 0.7 3.20 ± 0.24 0.09 ± 0.01
RH9 50.4 ± 0.8 23.1 ± 0.3 45.8 ± 0.6 65.8 ± 0.7 2.19 ± 0.06 0.77 ± 0.02
RH10 50.4 ± 0.8 23.1 ± 0.3 45.8 ± 0.6 65.8 ± 0.7 2.19 ± 0.06 0.77 ± 0.02
Average 46.7 18.1 36.2 66.9 2.9 0.7
Median 52.0 21.8 43.5 66.2 2.4 0.8
Deviation 16.5 7.9 15.5 1.5 1.3 0.2

Survey interval (About, Top)
Survey of solar wind interval
Selected data (About, Top)
Key plasma parameters
Survey
Velocity
V

Magnetic Field
B


Simple Methods (About, Top)
Simple methods
Rankine Chi^2 Contour (About, Top)

Chisq


Shock Speed (About, Top)
Shock Speed

Theta Bn (About, Top)
Theta Bn

Mach Numbers (About, Top)

Upstream wave speeds
Upstream Mach numbers
Downsteam wave speeds
Downstream mach numbers
Page updated Fri Jun 13 11:06:02 2014
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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