CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20113521758
Observation time: 12/18/2011 352.74884 1758 [UT]

Wind spacecraft

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


General Information (About, Top)

Year 2011
Fractional day of year 352.748837
Arrival time of shock [seconds of day] 64699.5 ± 20.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 224.297
Y GSE location of spacecraft [Re] -96.887
Z GSE location of spacecraft [Re] 10.043
Upstream plasma points selected for analysis 0004
Upstream field points selected for analysis 0130
Downstream plasma points selected for analysis 0002
Downstream field points selected for analysis 0082
Minimum chisq/dof for RH8,RH9,RH10 Infinity, -5973.23, -3000.83
Event added to database
Fri Sep 20 14:07:51 2013
Event last processed
Tue Sep 24 10:55:20 2013
Method selected
RH08
Propagation delay to Earth [minutes]
559.836 ± 1033.097

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -272.3 ± 0.6 -293.8 ± 0.2
Vy GSE [km/s] -1.2 ± 0.9 -6.1 ± 0.0
Vz GSE [km/s] 2.2 ± 0.4 4.9 ± 0.5
Wi [km/s] 11.4 ± 0.4 14.4 ± 0.0
We [km/s] 359.0 ± 12.6 454.6 ± 0.6
Ni [n/cc] 14.6 ± 0.3 24.6 ± 0.3
Bx GSE [nT] -0.2 ± 0.1 -0.4 ± 0.0
By GSE [nT] 2.7 ± 0.3 3.7 ± 0.1
Bz GSE [nT] -0.1 ± 0.1 -0.4 ± 0.1
Plasma Beta
0.550 ± 0.579
0.748 ± 0.770
Sound Speed [km/s]
14.65 ± 0.51
18.56 ± 0.02
Alfven Speed [km/s]
15.39 ± 1.43
16.63 ± 0.33

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.980 ± 0.189 -0.106 ± 0.917 -0.170 ± 0.169 -9.82 ± 54.34 186.19 ± 53.60
VC -0.967 ± 0.009 -0.224 ± 0.035 0.121 ± 0.120 6.93 ± 1.41 193.06 ± 2.05
MX1 -0.990 ± 0.008 -0.077 ± 0.093 0.117 ± 0.116 6.71 ± 1.57 184.42 ± 5.41
MX2 -0.991 ± 0.008 -0.081 ± 0.087 0.108 ± 0.107 6.19 ± 1.30 184.70 ± 5.02
MX3 -0.992 ± 0.007 -0.098 ± 0.065 0.079 ± 0.079 4.54 ± 2.62 185.63 ± 3.75
RH08 -0.064 ± 0.065 0.135 ± 0.049 -0.989 ± 0.212 -81.43 ± 2.50 115.32 ± 26.67
RH09 -0.960 ± 0.020 -0.249 ± 0.068 0.128 ± 0.128 7.38 ± 4.01 194.54 ± 4.07
RH10 -0.960 ± 0.020 -0.249 ± 0.068 0.128 ± 0.128 7.38 ± 4.01 194.54 ± 4.07
Average -0.863 -0.119 -0.060 -6.512 179.801
Median -0.967 -0.098 0.117 6.715 186.194
Deviation 0.323 0.127 0.389 30.819 26.426

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 89.3 ± 0.9 318.6 ± 0.2 1.70 ± 0.02
VC 81.8 ± 1.5 318.6 ± 0.3 1.70 ± 0.02
MX1 89.7 ± 1.5 324.0 ± 0.3 1.70 ± 0.02
MX2 89.9 ± 1.5 324.2 ± 0.3 1.70 ± 0.02
MX3 89.2 ± 1.4 324.6 ± 0.3 1.70 ± 0.02
RH08 79.6 ± 2.8 10.7 ± 0.4 1.70 ± 0.02
RH09 80.3 ± 1.5 316.7 ± 0.3 1.70 ± 0.02
RH10 80.3 ± 1.5 316.7 ± 0.8 1.70 ± 0.02
Average 85.0 281.8 1.70
Median 89.2 318.6 1.70
Deviation 4.9 109.6 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 52.1 ± 0.6 0.1 ± 0.0 0.2 ± 0.0 21.3 ± 1.4 386.39 ± 26.68 2.46 ± 0.18
VC 54.7 ± 0.6 1.5 ± 0.1 2.2 ± 0.2 21.2 ± 1.4 36.01 ± 2.45 2.59 ± 0.19
MX1 54.0 ± 0.6 0.1 ± 0.0 0.1 ± 0.0 21.3 ± 1.4 901.43 ± 61.01 2.55 ± 0.18
MX2 54.0 ± 0.6 0.0 ± 0.0 0.0 ± 0.0 21.3 ± 1.4 4219.18 ± 285.76 2.55 ± 0.18
MX3 54.1 ± 0.6 0.1 ± 0.0 0.2 ± 0.0 21.3 ± 1.4 373.82 ± 25.38 2.56 ± 0.18
RH8 -4.3 ± 0.3 1.9 ± 0.1 2.8 ± 0.3 21.2 ± 1.4 -2.25 ± 0.11 -0.20 ± 0.01
RH9 54.7 ± 0.6 1.8 ± 0.1 2.6 ± 0.2 21.2 ± 1.4 30.55 ± 2.08 2.59 ± 0.19
RH10 54.7 ± 0.6 1.8 ± 0.1 2.6 ± 0.2 21.2 ± 1.4 30.55 ± 2.08 2.59 ± 0.19
Average 46.8 0.9 1.3 21.2 747.0 2.2
Median 54.1 1.5 2.2 21.3 373.8 2.6
Deviation 20.7 0.9 1.3 0.0 1436.4 1.0

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 31.0 ± 0.3 0.2 ± 0.0 0.2 ± 0.0 24.9 ± 0.2 196.31 ± 0.16 1.24 ± 0.00
VC 32.5 ± 0.2 1.8 ± 0.0 2.4 ± 0.0 24.9 ± 0.2 18.28 ± 0.11 1.31 ± 0.00
MX1 32.1 ± 0.2 0.1 ± 0.0 0.1 ± 0.0 24.9 ± 0.2 456.96 ± 2.55 1.29 ± 0.00
MX2 32.1 ± 0.2 0.0 ± 0.0 0.0 ± 0.0 24.9 ± 0.2 2138.80 ± 11.62 1.29 ± 0.00
MX3 32.1 ± 0.2 0.2 ± 0.0 0.2 ± 0.0 24.9 ± 0.2 189.50 ± 0.95 1.29 ± 0.00
RH8 -2.4 ± 0.5 2.3 ± 0.0 3.0 ± 0.1 24.8 ± 0.2 -1.06 ± 0.24 -0.10 ± 0.02
RH9 32.6 ± 0.1 2.1 ± 0.0 2.8 ± 0.1 24.8 ± 0.2 15.51 ± 0.10 1.31 ± 0.00
RH10 32.6 ± 0.1 2.1 ± 0.0 2.8 ± 0.1 24.8 ± 0.2 15.51 ± 0.10 1.31 ± 0.00
Average 27.8 1.1 1.4 24.9 378.7 1.1
Median 32.1 1.8 2.4 24.9 189.5 1.3
Deviation 12.2 1.1 1.4 0.0 728.1 0.5

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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