CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20123282051
Observation time: 11/23/2012 328.86901 2051 [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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Simple methods
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Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2012
Fractional day of year 328.869010
Arrival time of shock [seconds of day] 75082.5 ± 20.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 241.531
Y GSE location of spacecraft [Re] -74.965
Z GSE location of spacecraft [Re] 18.288
Upstream plasma points selected for analysis 0006
Upstream field points selected for analysis 0171
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0107
Minimum chisq/dof for RH8,RH9,RH10 27.71, 69.87, 95.56
Event added to database
Tue Oct 8 16:02:43 2013
Event last processed
Tue Oct 8 17:41:32 2013
Method selected
RH08
Propagation delay to Earth [minutes]
-162.533 ± 54.390

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -312.3 ± 1.7 -377.7 ± 5.7
Vy GSE [km/s] -13.0 ± 4.5 23.8 ± 5.9
Vz GSE [km/s] -23.6 ± 1.7 -75.3 ± 2.4
Wi [km/s] 20.2 ± 0.8 38.3 ± 0.8
We [km/s] 640.1 ± 26.6 1210.5 ± 26.5
Ni [n/cc] 5.7 ± 0.5 12.9 ± 0.6
Bx GSE [nT] 2.5 ± 0.6 7.5 ± 0.4
By GSE [nT] 2.3 ± 1.0 7.0 ± 0.9
Bz GSE [nT] -3.0 ± 0.8 -5.8 ± 0.8
Plasma Beta
0.247 ± 0.252
0.284 ± 0.289
Sound Speed [km/s]
26.13 ± 1.08
49.42 ± 1.08
Alfven Speed [km/s]
42.47 ± 9.08
71.95 ± 2.80

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.952 ± 0.265 0.114 ± 1.063 -0.282 ± 0.275 -16.40 ± 47.55 173.17 ± 63.92
VC -0.719 ± 0.036 0.402 ± 0.050 -0.567 ± 0.497 -34.57 ± 2.72 150.79 ± 3.83
MX1 -0.704 ± 0.042 0.411 ± 0.052 -0.579 ± 0.503 -35.35 ± 3.51 149.73 ± 3.96
MX2 -0.705 ± 0.039 0.411 ± 0.049 -0.578 ± 0.503 -35.28 ± 3.14 149.74 ± 3.77
MX3 -0.706 ± 0.037 0.412 ± 0.048 -0.576 ± 0.502 -35.19 ± 2.96 149.73 ± 3.69
RH08 0.089 ± 0.022 -0.651 ± 0.016 -0.754 ± 0.561 -48.95 ± 1.21 277.77 ± 1.92
RH09 -0.285 ± 0.067 -0.360 ± 0.065 -0.888 ± 0.502 -62.66 ± 3.90 231.64 ± 8.85
RH10 -0.973 ± 0.016 0.009 ± 0.071 -0.229 ± 0.225 -13.24 ± 3.97 179.50 ± 4.17
Average -0.620 0.094 -0.557 -35.205 182.759
Median -0.705 0.402 -0.576 -35.192 173.170
Deviation 0.355 0.408 0.218 15.942 47.530

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 74.5 ± 3.3 450.5 ± 4.0 2.12 ± 0.19
VC 79.2 ± 4.0 397.6 ± 4.5 2.12 ± 0.19
MX1 78.1 ± 4.0 393.2 ± 4.5 2.12 ± 0.19
MX2 78.2 ± 4.0 393.4 ± 4.5 2.12 ± 0.19
MX3 78.2 ± 4.0 393.6 ± 4.5 2.12 ± 0.19
RH08 78.3 ± 13.7 17.7 ± 1.8 2.12 ± 0.19
RH09 76.4 ± 9.5 206.7 ± 2.1 2.12 ± 0.19
RH10 68.6 ± 2.5 448.0 ± 15.1 2.12 ± 0.19
Average 76.4 337.6 2.12
Median 78.2 393.6 2.12
Deviation 3.5 149.9 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 147.9 ± 1.6 5.9 ± 0.3 11.3 ± 2.4 49.7 ± 8.1 25.06 ± 1.26 3.03 ± 0.40
VC 165.0 ± 1.5 4.1 ± 0.2 7.9 ± 1.7 49.9 ± 8.0 40.07 ± 2.37 3.37 ± 0.45
MX1 164.9 ± 1.5 4.6 ± 0.3 8.8 ± 1.9 49.8 ± 8.0 36.25 ± 2.15 3.37 ± 0.46
MX2 164.9 ± 1.5 4.5 ± 0.3 8.7 ± 1.9 49.8 ± 8.0 36.41 ± 2.16 3.37 ± 0.46
MX3 164.9 ± 1.5 4.5 ± 0.3 8.7 ± 1.9 49.8 ± 8.0 36.55 ± 2.17 3.37 ± 0.46
RH8 19.1 ± 3.4 4.5 ± 0.3 8.6 ± 1.8 49.8 ± 8.0 4.25 ± 0.54 0.39 ± 0.05
RH9 92.1 ± 3.0 5.2 ± 0.3 10.0 ± 2.1 49.8 ± 8.1 17.63 ± 0.56 1.88 ± 0.22
RH10 138.8 ± 1.9 8.2 ± 0.5 15.5 ± 3.3 49.3 ± 8.1 17.03 ± 0.79 2.86 ± 0.37
Average 132.2 5.2 9.9 49.7 26.7 2.7
Median 164.9 4.6 8.8 49.8 36.2 3.4
Deviation 52.1 1.3 2.5 0.2 12.8 1.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 66.8 ± 6.1 10.9 ± 0.3 19.2 ± 0.7 86.6 ± 2.7 6.12 ± 0.72 0.77 ± 0.09
VC 73.9 ± 6.4 7.6 ± 0.2 13.4 ± 0.5 87.0 ± 2.8 9.70 ± 1.09 0.85 ± 0.10
MX1 73.8 ± 6.4 8.4 ± 0.2 14.8 ± 0.6 86.9 ± 2.8 8.77 ± 0.98 0.85 ± 0.10
MX2 73.8 ± 6.4 8.4 ± 0.2 14.8 ± 0.6 86.9 ± 2.8 8.81 ± 0.99 0.85 ± 0.10
MX3 73.8 ± 6.4 8.4 ± 0.2 14.7 ± 0.6 86.9 ± 2.8 8.84 ± 0.99 0.85 ± 0.10
RH8 10.0 ± 5.0 8.3 ± 0.2 14.6 ± 0.6 86.9 ± 2.8 1.20 ± 0.59 0.11 ± 0.06
RH9 40.8 ± 3.0 9.7 ± 0.2 17.0 ± 0.7 86.8 ± 2.7 4.23 ± 0.35 0.47 ± 0.04
RH10 62.9 ± 5.7 15.1 ± 0.4 26.3 ± 1.0 86.0 ± 2.7 4.17 ± 0.48 0.73 ± 0.09
Average 59.5 9.6 16.8 86.7 6.5 0.7
Median 73.8 8.4 14.8 86.9 8.8 0.9
Deviation 23.0 2.5 4.2 0.3 3.0 0.3

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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