CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20072381820
Observation time: 08/26/2007 238.76453 1820 [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 2007
Fractional day of year 238.764531
Arrival time of shock [seconds of day] 66055.5 ± 40.0
Shock type SF
Electron data availability 0
X GSE location of spacecraft [Re] 208.188
Y GSE location of spacecraft [Re] -84.168
Z GSE location of spacecraft [Re] -10.714
Upstream plasma points selected for analysis 0004
Upstream field points selected for analysis 0129
Downstream plasma points selected for analysis 0008
Downstream field points selected for analysis 0250
Minimum chisq/dof for RH8,RH9,RH10 2.02, 4.08, 4.44
Event added to database
Thu Sep 26 11:10:06 2013
Event last processed
Thu Sep 26 12:18:50 2013
Method selected
RH08
Propagation delay to Earth [minutes]
57.957 ± 8.846

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -379.5 ± 0.7 -407.9 ± 4.4
Vy GSE [km/s] 13.1 ± 5.5 10.1 ± 5.4
Vz GSE [km/s] -6.2 ± 1.7 -42.3 ± 9.5
Wi [km/s] 53.6 ± 4.0 65.4 ± 2.0
We [km/s] 1695.0 ± 125.4 2067.0 ± 62.2
Ni [n/cc] 6.5 ± 1.1 12.4 ± 0.8
Bx GSE [nT] 10.5 ± 1.1 7.3 ± 0.7
By GSE [nT] -6.9 ± 0.9 -10.3 ± 1.3
Bz GSE [nT] 12.6 ± 1.6 8.2 ± 2.0
Plasma Beta
0.133 ± 0.112
0.485 ± 0.482
Sound Speed [km/s]
69.20 ± 5.12
84.39 ± 2.54
Alfven Speed [km/s]
154.29 ± 22.29
94.62 ± 5.60

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.378 ± 0.103 0.820 ± 0.061 -0.430 ± 0.402 -25.49 ± 5.71 114.75 ± 7.10
VC -0.638 ± 0.061 -0.066 ± 0.153 -0.767 ± 0.561 -50.09 ± 4.46 185.89 ± 13.69
MX1 -0.391 ± 0.114 0.824 ± 0.067 -0.410 ± 0.385 -24.21 ± 6.35 115.38 ± 7.80
MX2 -0.380 ± 0.103 0.821 ± 0.059 -0.426 ± 0.398 -25.22 ± 5.38 114.82 ± 7.11
MX3 -0.379 ± 0.147 0.813 ± 0.101 -0.442 ± 0.411 -26.25 ± 10.93 115.02 ± 10.06
RH08 -0.854 ± 0.013 0.007 ± 0.034 0.520 ± 0.467 31.30 ± 1.39 179.50 ± 2.29
RH09 -0.854 ± 0.036 0.022 ± 0.071 0.520 ± 0.467 31.30 ± 4.01 178.50 ± 4.76
RH10 -0.854 ± 0.036 0.022 ± 0.071 0.520 ± 0.467 31.30 ± 4.01 178.50 ± 4.76
Average -0.591 0.408 -0.115 -7.169 147.795
Median -0.391 0.813 -0.410 -24.215 178.496
Deviation 0.235 0.441 0.538 32.946 35.144

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 32.0 ± 5.4 207.1 ± 3.3 2.05 ± 0.36
VC 26.9 ± 5.3 344.5 ± 4.1 2.05 ± 0.36
MX1 32.5 ± 5.4 211.2 ± 3.3 2.05 ± 0.36
MX2 32.1 ± 5.4 207.6 ± 3.3 2.05 ± 0.36
MX3 31.3 ± 5.4 208.6 ± 3.3 2.05 ± 0.36
RH08 81.9 ± 1.5 333.4 ± 1.2 2.05 ± 0.36
RH09 81.6 ± 1.5 333.3 ± 1.2 2.05 ± 0.36
RH10 81.6 ± 1.5 333.3 ± 6.5 2.05 ± 0.36
Average 50.0 272.4 2.05
Median 32.5 333.3 2.05
Deviation 26.3 68.3 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 50.2 ± 4.4 56.5 ± 2.9 130.9 ± 18.9 159.6 ± 20.0 0.89 ± 0.06 0.32 ± 0.06
VC 98.4 ± 1.8 60.0 ± 3.4 137.6 ± 19.9 158.3 ± 20.5 1.65 ± 0.12 0.63 ± 0.08
MX1 49.5 ± 4.4 56.2 ± 2.9 130.1 ± 18.8 159.8 ± 20.0 0.88 ± 0.06 0.32 ± 0.06
MX2 50.0 ± 4.4 56.4 ± 2.9 130.7 ± 18.9 159.7 ± 20.0 0.89 ± 0.06 0.32 ± 0.06
MX3 51.2 ± 4.4 57.1 ± 3.0 131.9 ± 19.1 159.4 ± 20.1 0.90 ± 0.06 0.33 ± 0.07
RH8 12.3 ± 0.5 8.8 ± 0.3 21.6 ± 3.1 169.3 ± 17.7 1.40 ± 0.06 0.07 ± 0.01
RH9 12.1 ± 0.5 9.1 ± 0.3 22.5 ± 3.3 169.3 ± 17.7 1.32 ± 0.06 0.07 ± 0.01
RH10 12.1 ± 0.5 9.1 ± 0.3 22.5 ± 3.3 169.3 ± 17.7 1.32 ± 0.06 0.07 ± 0.01
Average 42.0 39.2 91.0 163.1 1.2 0.3
Median 50.0 56.4 130.7 159.8 1.3 0.3
Deviation 29.6 25.0 57.0 5.2 0.3 0.2

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 26.5 ± 7.7 60.7 ± 0.7 80.3 ± 4.7 111.4 ± 2.9 0.43 ± 0.12 0.24 ± 0.06
VC 52.5 ± 9.8 65.4 ± 0.7 84.4 ± 5.0 108.7 ± 3.0 0.80 ± 0.15 0.48 ± 0.08
MX1 26.1 ± 7.6 60.2 ± 0.7 79.8 ± 4.7 111.7 ± 2.9 0.43 ± 0.12 0.23 ± 0.06
MX2 26.4 ± 7.7 60.5 ± 0.7 80.1 ± 4.7 111.5 ± 2.9 0.43 ± 0.12 0.24 ± 0.06
MX3 26.9 ± 7.8 61.4 ± 0.7 80.9 ± 4.8 111.1 ± 2.9 0.44 ± 0.12 0.24 ± 0.06
RH8 6.8 ± 2.2 8.8 ± 0.1 13.3 ± 0.8 126.6 ± 2.8 0.77 ± 0.25 0.05 ± 0.02
RH9 6.6 ± 2.2 9.2 ± 0.1 13.8 ± 0.8 126.5 ± 2.8 0.72 ± 0.24 0.05 ± 0.02
RH10 6.6 ± 2.2 9.2 ± 0.1 13.8 ± 0.8 126.5 ± 2.8 0.72 ± 0.24 0.05 ± 0.02
Average 22.3 41.9 55.8 116.8 0.6 0.2
Median 26.4 60.5 80.1 111.7 0.7 0.2
Deviation 15.6 27.2 34.9 8.2 0.2 0.1

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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