CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20112600257
Observation time: 09/17/2011 260.12304 0257 [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
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2011
Fractional day of year 260.123038
Arrival time of shock [seconds of day] 10630.5 ± 10.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 213.280
Y GSE location of spacecraft [Re] 94.846
Z GSE location of spacecraft [Re] -5.147
Upstream plasma points selected for analysis 0003
Upstream field points selected for analysis 0088
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0085
Minimum chisq/dof for RH8,RH9,RH10 43.85, Infinity,-13993.04
Event added to database
Fri Sep 20 13:44:06 2013
Event last processed
Tue Sep 24 10:32:47 2013
Method selected
RH08
Propagation delay to Earth [minutes]
21.022 ± 17.988

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -375.7 ± 1.8 -449.7 ± 2.4
Vy GSE [km/s] -29.9 ± 2.0 -48.7 ± 6.4
Vz GSE [km/s] 7.4 ± 3.3 26.2 ± 6.3
Wi [km/s] 22.4 ± 1.1 29.3 ± 3.2
We [km/s] 708.3 ± 34.5 927.2 ± 102.3
Ni [n/cc] 4.0 ± 0.4 8.6 ± 0.6
Bx GSE [nT] 0.6 ± 0.2 0.4 ± 0.2
By GSE [nT] -3.9 ± 0.4 -8.3 ± 0.4
Bz GSE [nT] -1.8 ± 0.5 -5.5 ± 0.2
Plasma Beta
0.236 ± 0.263
0.158 ± 0.164
Sound Speed [km/s]
28.92 ± 1.41
37.85 ± 4.17
Alfven Speed [km/s]
47.58 ± 7.61
74.24 ± 2.01

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.568 ± 0.200 0.581 ± 0.197 -0.583 ± 0.506 -35.69 ± 9.60 134.37 ± 18.59
VC -0.942 ± 0.025 -0.236 ± 0.064 0.240 ± 0.236 13.91 ± 4.83 194.07 ± 3.90
MX1 -0.947 ± 0.021 -0.177 ± 0.016 0.266 ± 0.260 15.45 ± 4.53 190.60 ± 0.94
MX2 -0.943 ± 0.021 -0.185 ± 0.021 0.275 ± 0.268 15.96 ± 4.43 191.10 ± 1.25
MX3 -0.940 ± 0.022 -0.191 ± 0.025 0.281 ± 0.274 16.33 ± 4.45 191.47 ± 1.51
RH08 -0.381 ± 0.065 0.579 ± 0.057 -0.721 ± 0.558 -46.11 ± 4.00 123.34 ± 5.85
RH09 -0.113 ± 0.026 0.097 ± 0.023 -0.989 ± 0.212 -81.43 ± 2.00 139.39 ± 2.00
RH10 0.010 ± 0.071 -0.766 ± 0.045 -0.642 ± 0.535 -39.98 ± 3.98 270.75 ± 5.34
Average -0.603 -0.037 -0.234 -17.693 179.387
Median -0.568 -0.177 0.240 13.913 191.103
Deviation 0.402 0.450 0.547 37.943 47.419

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 68.6 ± 3.5 227.8 ± 2.4 2.20 ± 0.30
VC 89.2 ± 2.8 507.9 ± 5.2 2.20 ± 0.30
MX1 85.5 ± 2.8 507.8 ± 5.0 2.20 ± 0.30
MX2 85.7 ± 2.8 506.5 ± 5.0 2.20 ± 0.30
MX3 85.9 ± 2.8 505.5 ± 5.0 2.20 ± 0.30
RH08 73.6 ± 4.1 125.5 ± 2.3 2.20 ± 0.30
RH09 72.6 ± 4.5 7.2 ± 3.2 2.20 ± 0.30
RH10 17.5 ± 4.1 24.6 ± 12.9 2.20 ± 0.30
Average 72.3 301.6 2.20
Median 85.5 505.5 2.20
Deviation 23.4 229.4 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 36.1 ± 2.7 9.1 ± 0.1 17.4 ± 2.8 55.1 ± 6.0 3.98 ± 0.32 0.66 ± 0.11
VC 145.4 ± 2.1 0.4 ± 0.0 0.7 ± 0.1 55.8 ± 5.9 409.09 ± 9.71 2.62 ± 0.25
MX1 144.6 ± 2.0 1.9 ± 0.0 3.7 ± 0.6 55.8 ± 5.9 74.79 ± 1.73 2.61 ± 0.25
MX2 144.5 ± 2.1 1.8 ± 0.0 3.6 ± 0.6 55.8 ± 5.9 78.91 ± 1.82 2.61 ± 0.25
MX3 144.4 ± 2.1 1.8 ± 0.0 3.4 ± 0.5 55.8 ± 5.9 82.23 ± 1.90 2.61 ± 0.25
RH8 5.0 ± 3.1 7.0 ± 0.1 13.5 ± 2.2 55.4 ± 6.0 0.72 ± 0.45 0.09 ± 0.06
RH9 -25.2 ± 3.4 7.4 ± 0.1 14.2 ± 2.3 55.3 ± 6.0 -3.41 ± 0.44 -0.45 ± 0.02
RH10 10.2 ± 2.1 26.8 ± 1.0 45.4 ± 7.3 48.8 ± 7.2 0.38 ± 0.08 0.21 ± 0.06
Average 75.6 7.0 12.7 54.7 80.8 1.4
Median 144.4 7.0 13.5 55.8 74.8 2.6
Deviation 75.7 8.6 14.6 2.4 138.2 1.4

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 16.0 ± 3.3 12.4 ± 1.1 27.1 ± 0.7 82.5 ± 1.2 1.31 ± 0.36 0.19 ± 0.04
VC 66.7 ± 2.6 0.5 ± 0.0 1.1 ± 0.0 83.4 ± 1.3 137.30 ± 9.90 0.80 ± 0.04
MX1 66.1 ± 2.2 2.7 ± 0.2 5.9 ± 0.2 83.4 ± 1.3 25.01 ± 1.76 0.79 ± 0.03
MX2 66.0 ± 2.2 2.5 ± 0.2 5.5 ± 0.2 83.4 ± 1.3 26.36 ± 1.84 0.79 ± 0.03
MX3 65.9 ± 2.2 2.4 ± 0.2 5.3 ± 0.1 83.4 ± 1.3 27.45 ± 1.90 0.79 ± 0.03
RH8 1.3 ± 3.7 9.6 ± 0.8 21.0 ± 0.6 82.9 ± 1.3 0.15 ± 0.39 0.02 ± 0.04
RH9 -13.1 ± 6.0 10.1 ± 0.9 22.1 ± 0.6 82.8 ± 1.3 -1.28 ± 0.53 -0.16 ± 0.07
RH10 8.7 ± 8.1 35.5 ± 3.7 70.8 ± 1.9 75.4 ± 1.8 0.24 ± 0.23 0.12 ± 0.11
Average 34.7 9.5 19.9 82.1 27.1 0.4
Median 65.9 9.6 21.0 83.4 25.0 0.8
Deviation 34.6 11.4 22.7 2.7 46.4 0.4

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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