CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20020882215
Observation time: 03/29/2002 88.92724 2215 [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 88.927240
Arrival time of shock [seconds of day] 80113.5 ± 6.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 79.037
Y GSE location of spacecraft [Re] 21.043
Z GSE location of spacecraft [Re] -5.140
Upstream plasma points selected for analysis 0011
Upstream field points selected for analysis 0336
Downstream plasma points selected for analysis 0010
Downstream field points selected for analysis 0301
Minimum chisq/dof for RH8,RH9,RH10 4.53, 7.19, 7.28
Event added to database
Mon Feb 14 11:18:34 2005
Event last processed
Mon Mar 30 22:52:26 2009
Method selected
RH08
Propagation delay to Earth [minutes]
21.119 ± 0.871

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -326.2 ± 1.5 -369.8 ± 4.8
Vy GSE [km/s] -19.0 ± 2.2 -39.1 ± 2.0
Vz GSE [km/s] -7.1 ± 1.3 -15.1 ± 5.4
Wi [km/s] 20.6 ± 0.7 28.7 ± 1.9
We [km/s] 650.4 ± 21.1 907.2 ± 58.9
Ni [n/cc] 23.2 ± 2.1 61.2 ± 6.5
Bx GSE [nT] -1.8 ± 0.9 -5.3 ± 1.4
By GSE [nT] 4.7 ± 1.2 7.3 ± 4.2
Bz GSE [nT] 2.1 ± 0.8 8.7 ± 1.7
Plasma Beta
0.670 ± 0.592
0.923 ± 0.864
Sound Speed [km/s]
26.55 ± 0.86
37.04 ± 2.41
Alfven Speed [km/s]
25.79 ± 3.34
36.27 ± 14.05

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.975 ± 0.239 -0.189 ± 1.219 0.119 ± 0.119 6.86 ± 18.61 190.97 ± 71.68
VC -0.894 ± 0.029 -0.415 ± 0.049 -0.171 ± 0.170 -9.87 ± 6.65 204.90 ± 3.08
MX1 -0.860 ± 0.320 -0.488 ± 0.563 -0.152 ± 0.151 -8.73 ± 9.69 209.58 ± 37.51
MX2 -0.822 ± 0.078 -0.495 ± 0.105 -0.280 ± 0.273 -16.28 ± 11.72 211.04 ± 7.00
MX3 -0.861 ± 0.062 -0.420 ± 0.074 -0.287 ± 0.278 -16.65 ± 11.63 205.98 ± 4.65
RH08 -0.978 ± 0.003 -0.182 ± 0.013 -0.106 ± 0.106 -6.09 ± 0.60 190.53 ± 0.76
RH09 -0.987 ± 0.011 -0.095 ± 0.070 -0.128 ± 0.128 -7.38 ± 4.01 185.52 ± 4.07
RH10 -0.987 ± 0.011 -0.078 ± 0.069 -0.140 ± 0.139 -8.03 ± 4.03 184.51 ± 4.03
Average -0.920 -0.295 -0.143 -8.272 197.877
Median -0.894 -0.189 -0.140 -8.028 204.897
Deviation 0.068 0.177 0.126 7.285 11.073

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 78.3 ± 12.8 392.9 ± 16.1 2.71 ± 0.38
VC 82.8 ± 11.2 377.7 ± 14.2 2.71 ± 0.38
MX1 79.0 ± 11.8 367.3 ± 14.3 2.71 ± 0.38
MX2 75.2 ± 10.5 356.1 ± 12.9 2.71 ± 0.38
MX3 79.5 ± 10.0 367.6 ± 12.9 2.71 ± 0.38
RH08 82.9 ± 10.5 398.7 ± 14.4 2.71 ± 0.38
RH09 79.1 ± 9.7 398.8 ± 13.9 2.71 ± 0.38
RH10 78.5 ± 9.4 398.1 ± 13.7 2.71 ± 0.38
Average 79.4 382.1 2.71
Median 79.1 392.9 2.71
Deviation 2.5 17.1 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 72.2 ± 1.6 3.8 ± 0.2 5.3 ± 0.7 36.9 ± 2.2 19.26 ± 1.22 1.96 ± 0.11
VC 77.1 ± 1.4 2.3 ± 0.1 3.2 ± 0.4 37.0 ± 2.2 33.71 ± 2.34 2.09 ± 0.13
MX1 76.6 ± 1.5 3.5 ± 0.2 4.9 ± 0.6 36.9 ± 2.2 21.94 ± 1.57 2.08 ± 0.14
MX2 76.4 ± 1.4 4.7 ± 0.3 6.6 ± 0.9 36.8 ± 2.2 16.16 ± 1.16 2.08 ± 0.14
MX3 76.7 ± 1.3 3.4 ± 0.2 4.7 ± 0.6 36.9 ± 2.2 22.83 ± 1.59 2.08 ± 0.13
RH8 75.6 ± 1.4 2.3 ± 0.1 3.2 ± 0.4 37.0 ± 2.2 33.55 ± 2.10 2.05 ± 0.12
RH9 74.1 ± 1.4 3.5 ± 0.2 4.9 ± 0.6 36.9 ± 2.2 21.28 ± 1.28 2.01 ± 0.11
RH10 73.7 ± 1.4 3.7 ± 0.2 5.1 ± 0.7 36.9 ± 2.2 20.07 ± 1.19 2.00 ± 0.11
Average 75.3 3.4 4.7 36.9 23.6 2.0
Median 76.4 3.5 4.9 36.9 21.9 2.1
Deviation 1.8 0.8 1.1 0.1 6.5 0.0

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 26.8 ± 5.6 5.0 ± 0.8 7.4 ± 2.9 52.6 ± 9.2 5.67 ± 2.04 0.54 ± 0.18
VC 28.4 ± 4.2 3.1 ± 0.5 4.5 ± 1.8 52.8 ± 9.2 9.75 ± 2.99 0.56 ± 0.16
MX1 28.1 ± 4.2 4.7 ± 0.8 6.9 ± 2.7 52.6 ± 9.2 6.32 ± 1.95 0.56 ± 0.16
MX2 28.4 ± 3.5 6.3 ± 1.1 9.3 ± 3.6 52.5 ± 9.2 4.69 ± 1.34 0.56 ± 0.15
MX3 28.4 ± 3.6 4.5 ± 0.8 6.6 ± 2.6 52.7 ± 9.2 6.62 ± 1.89 0.56 ± 0.15
RH8 28.5 ± 4.5 3.0 ± 0.5 4.5 ± 1.7 52.8 ± 9.2 9.93 ± 3.16 0.56 ± 0.17
RH9 28.1 ± 4.3 4.6 ± 0.8 6.9 ± 2.7 52.6 ± 9.2 6.34 ± 1.99 0.56 ± 0.16
RH10 28.0 ± 4.3 4.9 ± 0.8 7.2 ± 2.8 52.6 ± 9.2 5.99 ± 1.87 0.56 ± 0.16
Average 28.1 4.5 6.7 52.6 6.9 0.6
Median 28.4 4.7 6.9 52.6 6.3 0.6
Deviation 0.5 1.1 1.6 0.1 1.9 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 Fri Jun 13 11:06:02 2014
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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