CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20021311030
Observation time: 05/11/2002 131.43783 1030 [UT]

Wind spacecraft

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Asymptotic parameters
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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 2002
Fractional day of year 131.437830
Arrival time of shock [seconds of day] 37828.5 ± 12.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 2.356
Y GSE location of spacecraft [Re] 303.041
Z GSE location of spacecraft [Re] 19.850
Upstream plasma points selected for analysis 0007
Upstream field points selected for analysis 0227
Downstream plasma points selected for analysis 0007
Downstream field points selected for analysis 0249
Minimum chisq/dof for RH8,RH9,RH10 5.43, 8.72, 9.08
Event added to database
Mon Feb 14 11:19:17 2005
Event last processed
Mon Mar 30 23:04:30 2009
Method selected
RH08
Propagation delay to Earth [minutes]
5.957 ± 1.287

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -333.5 ± 3.2 -423.1 ± 3.9
Vy GSE [km/s] -3.0 ± 6.6 -27.3 ± 6.7
Vz GSE [km/s] -28.6 ± 1.5 -52.2 ± 4.0
Wi [km/s] 26.4 ± 1.1 48.9 ± 4.4
We [km/s] 834.5 ± 33.2 1546.2 ± 140.4
Ni [n/cc] 10.0 ± 0.4 26.7 ± 3.6
Bx GSE [nT] 5.5 ± 1.1 5.5 ± 1.3
By GSE [nT] -0.4 ± 2.2 -8.9 ± 3.9
Bz GSE [nT] -3.7 ± 0.8 -14.8 ± 3.6
Plasma Beta
0.289 ± 0.291
0.392 ± 0.380
Sound Speed [km/s]
34.07 ± 1.36
63.12 ± 5.73
Alfven Speed [km/s]
49.12 ± 1.54
79.87 ± 6.99

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.978 ± 0.060 -0.095 ± 0.328 0.185 ± 0.183 10.64 ± 15.72 185.53 ± 19.22
VC -0.936 ± 0.024 -0.250 ± 0.082 -0.246 ± 0.241 -14.25 ± 2.56 194.97 ± 4.99
MX1 -0.976 ± 0.041 -0.160 ± 0.100 0.144 ± 0.143 8.30 ± 14.93 189.33 ± 5.86
MX2 -0.998 ± 0.009 -0.069 ± 0.128 0.006 ± 0.006 0.33 ± 6.89 183.93 ± 7.33
MX3 -0.998 ± 0.008 -0.049 ± 0.145 -0.026 ± 0.026 -1.52 ± 6.94 182.81 ± 8.31
RH08 -0.995 ± 0.002 -0.079 ± 0.020 -0.061 ± 0.061 -3.52 ± 1.13 184.51 ± 1.16
RH09 -0.999 ± 0.003 -0.026 ± 0.068 -0.028 ± 0.028 -1.60 ± 4.06 181.50 ± 3.91
RH10 -0.999 ± 0.003 -0.026 ± 0.068 -0.028 ± 0.028 -1.60 ± 4.06 181.50 ± 3.91
Average -0.985 -0.094 -0.007 -0.401 185.511
Median -0.995 -0.069 -0.026 -1.517 184.513
Deviation 0.022 0.076 0.132 7.595 4.582

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 28.7 ± 15.4 461.7 ± 16.5 2.68 ± 0.42
VC 53.0 ± 16.5 476.9 ± 17.0 2.68 ± 0.42
MX1 31.2 ± 17.0 466.7 ± 16.7 2.68 ± 0.42
MX2 37.5 ± 14.0 482.3 ± 17.2 2.68 ± 0.42
MX3 39.1 ± 13.4 483.8 ± 17.3 2.68 ± 0.42
RH08 41.1 ± 13.9 485.9 ± 17.4 2.68 ± 0.42
RH09 39.1 ± 12.8 483.1 ± 17.3 2.68 ± 0.42
RH10 39.1 ± 12.8 483.1 ± 17.3 2.68 ± 0.42
Average 38.6 477.9 2.68
Median 39.1 483.1 2.68
Deviation 7.3 9.0 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 140.4 ± 3.4 27.7 ± 0.9 43.1 ± 1.3 53.0 ± 1.5 5.07 ± 0.22 2.65 ± 0.11
VC 156.8 ± 4.2 17.6 ± 0.6 29.6 ± 0.9 57.1 ± 1.6 8.91 ± 0.39 2.75 ± 0.12
MX1 144.7 ± 3.7 26.8 ± 0.9 42.0 ± 1.3 53.5 ± 1.5 5.41 ± 0.24 2.71 ± 0.11
MX2 149.5 ± 3.5 24.3 ± 0.8 38.9 ± 1.2 54.6 ± 1.6 6.16 ± 0.27 2.74 ± 0.11
MX3 149.9 ± 3.4 23.6 ± 0.8 38.1 ± 1.2 54.9 ± 1.6 6.35 ± 0.28 2.73 ± 0.11
RH8 152.1 ± 3.5 22.8 ± 0.7 37.0 ± 1.2 55.3 ± 1.6 6.67 ± 0.29 2.75 ± 0.12
RH9 149.0 ± 3.3 23.6 ± 0.8 38.1 ± 1.2 54.9 ± 1.6 6.31 ± 0.28 2.71 ± 0.11
RH10 149.0 ± 3.3 23.6 ± 0.8 38.1 ± 1.2 54.9 ± 1.6 6.31 ± 0.28 2.71 ± 0.11
Average 148.9 23.8 38.1 54.8 6.4 2.7
Median 149.5 23.6 38.1 54.9 6.3 2.7
Deviation 4.8 3.0 4.1 1.2 1.1 0.0

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 54.9 ± 4.4 49.3 ± 2.9 70.1 ± 6.1 89.3 ± 4.6 1.12 ± 0.14 0.62 ± 0.08
VC 61.1 ± 4.2 31.1 ± 1.6 48.1 ± 4.2 97.2 ± 4.5 1.97 ± 0.22 0.63 ± 0.07
MX1 56.8 ± 4.5 47.6 ± 2.7 68.3 ± 6.0 90.3 ± 4.5 1.20 ± 0.15 0.63 ± 0.08
MX2 58.6 ± 4.1 43.0 ± 2.4 63.3 ± 5.5 92.5 ± 4.5 1.37 ± 0.15 0.64 ± 0.07
MX3 58.7 ± 4.0 41.8 ± 2.3 62.0 ± 5.4 93.1 ± 4.5 1.41 ± 0.15 0.63 ± 0.07
RH8 59.6 ± 4.1 40.4 ± 2.2 60.2 ± 5.3 93.7 ± 4.5 1.48 ± 0.16 0.64 ± 0.07
RH9 58.2 ± 4.0 41.8 ± 2.3 61.9 ± 5.4 93.1 ± 4.5 1.40 ± 0.15 0.63 ± 0.07
RH10 58.2 ± 4.0 41.8 ± 2.3 61.9 ± 5.4 93.1 ± 4.5 1.40 ± 0.15 0.63 ± 0.07
Average 58.2 42.1 62.0 92.8 1.4 0.6
Median 58.6 41.8 62.0 93.1 1.4 0.6
Deviation 1.8 5.4 6.6 2.4 0.3 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 Mon Apr 13 08:55:21 2009
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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