CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20020170526
Observation time: 01/17/2002 17.22703 0526 [UT]

Wind spacecraft

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Asymptotic parameters
Shock front normals
Key parameters
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 2002
Fractional day of year 17.227031
Arrival time of shock [seconds of day] 19615.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 37.148
Y GSE location of spacecraft [Re] -310.912
Z GSE location of spacecraft [Re] 18.550
Upstream plasma points selected for analysis 0009
Upstream field points selected for analysis 0313
Downstream plasma points selected for analysis 0006
Downstream field points selected for analysis 0271
Minimum chisq/dof for RH8,RH9,RH10 12.25, 24.21, 24.78
Event added to database
Mon Feb 14 11:17:34 2005
Event last processed
Mon Mar 30 22:32:23 2009
Method selected
RH09
Propagation delay to Earth [minutes]
27.444 ± 5.439

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -352.0 ± 2.9 -361.8 ± 4.6
Vy GSE [km/s] 13.7 ± 7.2 33.1 ± 4.1
Vz GSE [km/s] 9.4 ± 7.4 41.9 ± 1.3
Wi [km/s] 26.5 ± 1.2 31.4 ± 0.8
We [km/s] 839.2 ± 37.3 991.7 ± 25.6
Ni [n/cc] 6.5 ± 0.4 9.6 ± 0.7
Bx GSE [nT] -5.6 ± 0.6 -10.5 ± 0.4
By GSE [nT] -2.6 ± 1.3 -0.6 ± 1.1
Bz GSE [nT] -1.5 ± 1.2 -4.8 ± 0.2
Plasma Beta
0.223 ± 0.204
0.148 ± 0.155
Sound Speed [km/s]
34.26 ± 1.52
40.49 ± 1.04
Alfven Speed [km/s]
56.78 ± 3.96
81.87 ± 4.20

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.879 ± 0.476 -0.451 ± 0.925 0.157 ± 0.156 9.06 ± 11.56 207.17 ± 60.34
VC -0.245 ± 0.126 0.504 ± 0.194 0.828 ± 0.547 55.91 ± 14.59 115.96 ± 9.83
MX1 -0.592 ± 0.274 0.366 ± 0.417 0.718 ± 0.558 45.92 ± 9.50 148.25 ± 39.91
MX2 -0.400 ± 0.193 0.502 ± 0.173 0.767 ± 0.561 50.05 ± 9.65 128.56 ± 20.07
MX3 -0.332 ± 0.146 0.559 ± 0.132 0.760 ± 0.561 49.46 ± 9.39 120.73 ± 13.46
RH08 -0.505 ± 0.011 -0.767 ± 0.008 0.397 ± 0.374 23.37 ± 0.75 236.66 ± 0.82
RH09 -0.928 ± 0.022 0.241 ± 0.058 0.285 ± 0.277 16.55 ± 3.20 165.46 ± 3.60
RH10 -0.928 ± 0.025 0.241 ± 0.066 0.285 ± 0.277 16.55 ± 3.73 165.46 ± 4.04
Average -0.601 0.149 0.525 33.359 161.030
Median -0.505 0.366 0.718 45.921 165.460
Deviation 0.278 0.490 0.270 18.743 42.697

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 25.4 ± 9.9 320.8 ± 8.8 1.44 ± 0.09
VC 79.4 ± 3.6 222.8 ± 23.7 1.44 ± 0.09
MX1 79.0 ± 3.2 333.6 ± 19.6 1.44 ± 0.09
MX2 87.8 ± 3.3 275.2 ± 21.2 1.44 ± 0.09
MX3 83.3 ± 3.3 252.9 ± 21.1 1.44 ± 0.09
RH08 48.0 ± 15.3 182.7 ± 17.0 1.44 ± 0.09
RH09 51.2 ± 4.5 404.3 ± 9.9 1.44 ± 0.09
RH10 51.2 ± 4.5 404.3 ± 9.9 1.44 ± 0.09
Average 63.2 299.6 1.44
Median 79.0 320.8 1.44
Deviation 22.3 81.0 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 16.3 ± 2.8 29.6 ± 1.0 51.3 ± 3.6 59.4 ± 3.5 0.55 ± 0.10 0.28 ± 0.06
VC 121.8 ± 3.4 5.4 ± 0.2 10.5 ± 0.7 66.1 ± 3.1 22.54 ± 0.85 1.85 ± 0.12
MX1 113.6 ± 3.0 5.6 ± 0.2 10.8 ± 0.8 66.1 ± 3.1 20.33 ± 0.78 1.72 ± 0.10
MX2 120.2 ± 3.1 1.1 ± 0.0 2.1 ± 0.1 66.4 ± 3.1 108.65 ± 3.79 1.82 ± 0.11
MX3 121.2 ± 3.0 3.4 ± 0.1 6.7 ± 0.5 66.3 ± 3.1 35.34 ± 1.16 1.83 ± 0.10
RH8 11.9 ± 7.1 20.6 ± 0.6 38.0 ± 2.6 63.1 ± 3.2 0.58 ± 0.35 0.19 ± 0.12
RH9 71.7 ± 2.9 19.1 ± 0.6 35.5 ± 2.5 63.5 ± 3.2 3.75 ± 0.17 1.13 ± 0.04
RH10 71.7 ± 2.9 19.1 ± 0.6 35.5 ± 2.5 63.5 ± 3.2 3.75 ± 0.17 1.13 ± 0.04
Average 81.1 13.0 23.8 64.3 24.4 1.2
Median 113.6 19.1 35.5 66.1 20.3 1.7
Deviation 46.3 10.4 18.3 2.4 36.3 0.7

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 11.3 ± 2.5 35.6 ± 0.8 74.0 ± 3.8 84.1 ± 4.0 0.32 ± 0.07 0.13 ± 0.02
VC 82.7 ± 3.3 6.7 ± 0.1 15.1 ± 0.8 91.1 ± 3.7 12.35 ± 0.48 0.91 ± 0.01
MX1 77.4 ± 4.3 6.9 ± 0.1 15.6 ± 0.8 91.1 ± 3.7 11.17 ± 0.60 0.85 ± 0.02
MX2 81.7 ± 4.0 1.4 ± 0.0 3.1 ± 0.2 91.3 ± 3.7 59.51 ± 2.76 0.89 ± 0.01
MX3 82.5 ± 3.9 4.3 ± 0.1 9.6 ± 0.5 91.3 ± 3.7 19.39 ± 0.87 0.90 ± 0.01
RH8 8.9 ± 1.8 25.2 ± 0.5 54.8 ± 2.8 87.8 ± 3.8 0.35 ± 0.07 0.10 ± 0.02
RH9 48.7 ± 5.2 23.5 ± 0.5 51.3 ± 2.6 88.3 ± 3.8 2.07 ± 0.22 0.55 ± 0.04
RH10 48.7 ± 5.2 23.5 ± 0.5 51.3 ± 2.6 88.3 ± 3.8 2.07 ± 0.22 0.55 ± 0.04
Average 55.2 15.9 34.3 89.2 13.4 0.6
Median 77.4 23.5 51.3 91.1 11.2 0.8
Deviation 31.3 12.5 26.4 2.5 19.9 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 Mon Apr 13 08:55:21 2009
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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