CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20112171732
Observation time: 08/05/2011 217.73075 1732 [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 2011
Fractional day of year 217.730747
Arrival time of shock [seconds of day] 63136.5 ± 10.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 202.201
Y GSE location of spacecraft [Re] -24.464
Z GSE location of spacecraft [Re] -18.630
Upstream plasma points selected for analysis 0003
Upstream field points selected for analysis 0091
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0096
Minimum chisq/dof for RH8,RH9,RH10 62.40, Infinity, -3155.82
Event added to database
Fri Sep 20 13:30:45 2013
Event last processed
Tue Sep 24 10:27:18 2013
Method selected
RH08
Propagation delay to Earth [minutes]
49.050 ± 5.196

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -418.6 ± 5.5 -464.6 ± 0.8
Vy GSE [km/s] -5.1 ± 2.9 -5.1 ± 2.2
Vz GSE [km/s] -30.9 ± 4.5 -103.4 ± 6.6
Wi [km/s] 25.8 ± 1.6 40.0 ± 5.6
We [km/s] 814.8 ± 51.6 1265.7 ± 176.6
Ni [n/cc] 5.1 ± 0.3 11.6 ± 0.8
Bx GSE [nT] 0.6 ± 0.3 2.1 ± 1.5
By GSE [nT] -4.4 ± 1.1 -10.0 ± 0.8
Bz GSE [nT] -1.0 ± 0.3 -2.0 ± 0.8
Plasma Beta
0.361 ± 0.376
0.361 ± 0.344
Sound Speed [km/s]
33.26 ± 2.11
51.67 ± 7.21
Alfven Speed [km/s]
43.91 ± 8.76
67.13 ± 5.39

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.983 ± 0.085 -0.152 ± 0.306 0.101 ± 0.100 5.77 ± 40.77 188.79 ± 17.84
VC -0.537 ± 0.043 -0.002 ± 0.035 -0.843 ± 0.539 -57.51 ± 2.91 180.20 ± 3.77
MX1 -0.539 ± 0.037 0.013 ± 0.044 -0.842 ± 0.540 -57.38 ± 2.51 178.65 ± 4.68
MX2 -0.538 ± 0.034 0.013 ± 0.043 -0.843 ± 0.539 -57.47 ± 2.30 178.65 ± 4.59
MX3 -0.536 ± 0.032 0.013 ± 0.042 -0.844 ± 0.539 -57.55 ± 2.18 178.64 ± 4.52
RH08 -0.851 ± 0.037 -0.302 ± 0.066 0.430 ± 0.401 25.48 ± 4.00 199.55 ± 4.41
RH09 -0.000 ± 0.035 -0.000 ± 0.000 -1.000 ± 0.000 -90.00 ± 2.00 0.00 ± 2.00
RH10 -0.143 ± 0.070 0.981 ± 0.013 0.128 ± 0.128 7.38 ± 4.01 98.27 ± 4.07
Average -0.516 0.070 -0.464 -35.159 150.344
Median -0.537 0.013 -0.842 -57.376 178.649
Deviation 0.325 0.385 0.577 41.681 68.148

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 89.5 ± 4.7 476.8 ± 0.8 2.26 ± 0.04
VC 83.1 ± 1.0 411.7 ± 4.3 2.26 ± 0.04
MX1 84.0 ± 1.0 412.3 ± 4.3 2.26 ± 0.04
MX2 83.9 ± 1.0 411.8 ± 4.3 2.26 ± 0.04
MX3 83.9 ± 1.0 411.3 ± 4.3 2.26 ± 0.04
RH08 85.4 ± 4.9 357.6 ± 1.5 2.26 ± 0.04
RH09 77.0 ± 1.9 169.0 ± 4.8 2.26 ± 0.04
RH10 6.8 ± 2.0 46.7 ± 5.2 2.26 ± 0.04
Average 74.2 337.2 2.26
Median 83.9 411.7 2.26
Deviation 27.5 148.7 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 67.6 ± 4.7 0.2 ± 0.0 0.4 ± 0.1 55.2 ± 8.2 303.48 ± 48.43 1.25 ± 0.24
VC 160.8 ± 6.4 3.2 ± 0.3 5.3 ± 1.1 55.1 ± 8.2 51.24 ± 7.08 2.97 ± 0.51
MX1 160.8 ± 6.4 2.8 ± 0.3 4.6 ± 0.9 55.1 ± 8.2 58.33 ± 8.07 2.97 ± 0.51
MX2 160.8 ± 6.4 2.8 ± 0.3 4.6 ± 0.9 55.1 ± 8.2 58.10 ± 8.04 2.97 ± 0.51
MX3 160.8 ± 6.4 2.8 ± 0.3 4.7 ± 0.9 55.1 ± 8.2 57.96 ± 8.02 2.97 ± 0.51
RH8 13.2 ± 2.5 2.1 ± 0.2 3.5 ± 0.7 55.1 ± 8.2 6.39 ± 1.68 0.25 ± 0.07
RH9 138.1 ± 4.5 6.0 ± 0.6 9.9 ± 2.0 54.8 ± 8.2 23.27 ± 3.08 2.56 ± 0.43
RH10 -4.1 ± 3.3 32.7 ± 2.2 43.6 ± 8.7 44.4 ± 8.6 -0.13 ± 0.10 -0.09 ± 0.08
Average 107.3 6.6 9.6 53.7 69.8 2.0
Median 160.8 2.8 4.7 55.1 58.0 3.0
Deviation 71.0 10.7 14.0 3.8 97.4 1.3

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 29.6 ± 1.2 0.3 ± 0.0 0.6 ± 0.0 84.8 ± 7.1 85.65 ± 9.20 0.35 ± 0.04
VC 74.9 ± 5.3 4.9 ± 0.5 8.1 ± 0.6 84.7 ± 7.1 15.44 ± 2.33 0.89 ± 0.12
MX1 74.9 ± 5.3 4.3 ± 0.4 7.1 ± 0.6 84.7 ± 7.1 17.58 ± 2.64 0.89 ± 0.12
MX2 74.9 ± 5.3 4.3 ± 0.4 7.1 ± 0.6 84.7 ± 7.1 17.51 ± 2.63 0.89 ± 0.12
MX3 74.9 ± 5.3 4.3 ± 0.4 7.1 ± 0.6 84.7 ± 7.1 17.46 ± 2.63 0.89 ± 0.12
RH8 5.3 ± 2.8 3.2 ± 0.3 5.3 ± 0.4 84.8 ± 7.1 1.61 ± 0.80 0.06 ± 0.03
RH9 65.6 ± 6.6 9.3 ± 0.9 15.2 ± 1.2 84.3 ± 7.0 7.16 ± 1.24 0.78 ± 0.12
RH10 -1.3 ± 3.0 50.7 ± 6.7 66.7 ± 5.4 67.9 ± 5.4 -0.03 ± 0.06 -0.02 ± 0.04
Average 49.8 10.2 14.6 82.6 20.3 0.6
Median 74.9 4.3 7.1 84.7 17.5 0.9
Deviation 33.3 16.6 21.4 5.9 27.4 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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