CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20072340434
Observation time: 08/22/2007 234.19033 0434 [UT]

Wind spacecraft

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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 2007
Fractional day of year 234.190330
Arrival time of shock [seconds of day] 16444.5 ± 20.0
Shock type NN
Electron data availability 0
X GSE location of spacecraft [Re] 212.300
Y GSE location of spacecraft [Re] -91.119
Z GSE location of spacecraft [Re] -7.629
Upstream plasma points selected for analysis 0004
Upstream field points selected for analysis 0144
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0115
Minimum chisq/dof for RH8,RH9,RH10 14.91, 37.97, 57.59
Event added to database
Mon Sep 23 12:28:19 2013
Event last processed
Tue Oct 8 16:20:31 2013
Method selected
RH08
Propagation delay to Earth [minutes]
68.185 ± 1.212

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -318.6 ± 0.7 -331.5 ± 1.0
Vy GSE [km/s] -6.3 ± 1.3 -8.6 ± 1.0
Vz GSE [km/s] -23.3 ± 1.5 -21.7 ± 0.6
Wi [km/s] 14.3 ± 0.4 16.7 ± 0.2
We [km/s] 452.5 ± 11.7 528.3 ± 7.8
Ni [n/cc] 8.4 ± 0.4 12.9 ± 0.5
Bx GSE [nT] 1.0 ± 0.1 0.8 ± 0.1
By GSE [nT] -2.0 ± 0.2 -2.7 ± 0.1
Bz GSE [nT] 0.9 ± 0.1 1.0 ± 0.0
Plasma Beta
0.629 ± 0.597
0.879 ± 0.895
Sound Speed [km/s]
18.47 ± 0.48
21.57 ± 0.32
Alfven Speed [km/s]
18.14 ± 1.18
17.85 ± 0.80

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.904 ± 0.103 0.318 ± 0.224 -0.286 ± 0.278 -16.61 ± 14.34 160.64 ± 14.11
VC -0.978 ± 0.022 -0.170 ± 0.101 0.120 ± 0.119 6.89 ± 6.58 189.88 ± 5.90
MX1 -0.932 ± 0.080 0.349 ± 0.208 -0.095 ± 0.095 -5.46 ± 11.62 159.49 ± 12.78
MX2 -0.934 ± 0.078 0.350 ± 0.206 -0.064 ± 0.064 -3.69 ± 10.57 159.45 ± 12.64
MX3 -0.934 ± 0.070 0.345 ± 0.188 0.091 ± 0.091 5.23 ± 6.25 159.73 ± 11.56
RH08 -0.986 ± 0.007 0.148 ± 0.044 -0.073 ± 0.072 -4.16 ± 2.64 171.48 ± 2.57
RH09 -0.915 ± 0.028 0.325 ± 0.067 -0.240 ± 0.235 -13.90 ± 3.98 160.45 ± 4.17
RH10 -0.917 ± 0.028 0.326 ± 0.067 -0.229 ± 0.225 -13.24 ± 3.97 160.45 ± 4.17
Average -0.938 0.249 -0.097 -5.618 165.195
Median -0.932 0.326 -0.073 -4.165 160.446
Deviation 0.030 0.182 0.150 8.682 10.757

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 42.6 ± 2.9 322.8 ± 0.7 1.56 ± 0.04
VC 77.9 ± 2.3 348.0 ± 1.0 1.56 ± 0.04
MX1 45.3 ± 2.2 328.4 ± 0.7 1.56 ± 0.04
MX2 46.0 ± 2.1 328.6 ± 0.7 1.56 ± 0.04
MX3 50.8 ± 1.6 326.1 ± 0.7 1.56 ± 0.04
RH08 56.7 ± 2.4 350.0 ± 0.8 1.56 ± 0.04
RH09 43.1 ± 2.7 325.5 ± 0.7 1.56 ± 0.04
RH10 43.3 ± 2.7 326.2 ± 2.2 1.56 ± 0.04
Average 50.7 332.0 1.56
Median 46.0 328.4 1.56
Deviation 12.0 10.7 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 30.1 ± 0.6 10.4 ± 0.4 13.4 ± 0.9 23.7 ± 0.8 2.90 ± 0.12 1.27 ± 0.05
VC 38.1 ± 0.7 2.7 ± 0.1 3.8 ± 0.2 25.8 ± 0.9 14.05 ± 0.56 1.48 ± 0.06
MX1 31.3 ± 0.6 9.8 ± 0.4 12.8 ± 0.8 24.0 ± 0.8 3.19 ± 0.16 1.31 ± 0.06
MX2 31.6 ± 0.7 9.7 ± 0.4 12.6 ± 0.8 24.0 ± 0.8 3.27 ± 0.16 1.32 ± 0.06
MX3 32.7 ± 0.8 8.7 ± 0.3 11.5 ± 0.7 24.4 ± 0.8 3.78 ± 0.21 1.34 ± 0.07
RH8 35.0 ± 0.6 7.4 ± 0.3 10.0 ± 0.6 24.8 ± 0.9 4.73 ± 0.20 1.41 ± 0.06
RH9 30.5 ± 0.6 10.3 ± 0.4 13.2 ± 0.9 23.8 ± 0.8 2.97 ± 0.13 1.28 ± 0.06
RH10 30.6 ± 0.6 10.2 ± 0.4 13.2 ± 0.9 23.8 ± 0.8 2.99 ± 0.13 1.29 ± 0.06
Average 32.5 8.7 11.3 24.3 4.7 1.3
Median 31.6 9.8 12.8 24.0 3.3 1.3
Deviation 2.8 2.6 3.2 0.7 3.8 0.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 19.6 ± 0.7 11.0 ± 0.3 13.2 ± 0.6 25.7 ± 0.5 1.78 ± 0.02 0.76 ± 0.02
VC 24.9 ± 1.1 2.9 ± 0.1 3.7 ± 0.2 27.9 ± 0.5 8.62 ± 0.14 0.89 ± 0.02
MX1 20.2 ± 0.6 10.4 ± 0.3 12.6 ± 0.6 26.0 ± 0.5 1.94 ± 0.00 0.78 ± 0.01
MX2 20.4 ± 0.6 10.3 ± 0.3 12.4 ± 0.6 26.1 ± 0.5 1.99 ± 0.00 0.78 ± 0.01
MX3 21.3 ± 0.5 9.2 ± 0.3 11.3 ± 0.5 26.4 ± 0.5 2.32 ± 0.01 0.81 ± 0.01
RH8 22.7 ± 0.9 7.9 ± 0.2 9.8 ± 0.4 26.9 ± 0.5 2.89 ± 0.03 0.85 ± 0.02
RH9 19.8 ± 0.7 10.9 ± 0.3 13.0 ± 0.6 25.8 ± 0.5 1.82 ± 0.01 0.77 ± 0.01
RH10 19.9 ± 0.7 10.9 ± 0.3 13.0 ± 0.6 25.8 ± 0.5 1.83 ± 0.01 0.77 ± 0.01
Average 21.1 9.2 11.1 26.3 2.9 0.8
Median 20.4 10.4 12.6 26.1 2.0 0.8
Deviation 1.8 2.8 3.2 0.7 2.3 0.0

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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