CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20002021842
Observation time: 07/20/2000 202.77981 1842 [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 2000
Fractional day of year 202.779809
Arrival time of shock [seconds of day] 67375.5 ± 110.0
Shock type SF
Electron data availability 0
X GSE location of spacecraft [Re] 14.296
Y GSE location of spacecraft [Re] -50.235
Z GSE location of spacecraft [Re] -4.574
Upstream plasma points selected for analysis 0009
Upstream field points selected for analysis 0300
Downstream plasma points selected for analysis 0007
Downstream field points selected for analysis 0209
Minimum chisq/dof for RH8,RH9,RH10 2.29, 3.90, 3.99
Event added to database
Mon Feb 14 11:09:59 2005
Event last processed
Mon Mar 30 19:32:54 2009
Method selected
RH08
Propagation delay to Earth [minutes]
3.065 ± 0.264

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -462.7 ± 3.0 -475.4 ± 8.7
Vy GSE [km/s] -18.8 ± 2.4 10.1 ± 13.1
Vz GSE [km/s] 6.8 ± 3.6 -16.4 ± 10.9
Wi [km/s] 23.2 ± 1.8 35.3 ± 4.3
We [km/s] 734.9 ± 57.6 1114.9 ± 136.9
Ni [n/cc] 3.3 ± 0.3 5.2 ± 0.3
Bx GSE [nT] 2.3 ± 0.2 3.3 ± 0.4
By GSE [nT] -5.8 ± 0.3 -2.2 ± 1.0
Bz GSE [nT] 2.6 ± 0.5 -1.3 ± 2.0
Plasma Beta
0.084 ± 0.079
0.630 ± 0.701
Sound Speed [km/s]
30.00 ± 2.35
45.51 ± 5.59
Alfven Speed [km/s]
81.61 ± 5.19
44.75 ± 4.36

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.811 ± 0.110 0.554 ± 0.155 0.186 ± 0.184 10.75 ± 13.02 145.66 ± 10.82
VC -0.309 ± 0.132 0.752 ± 0.115 -0.582 ± 0.505 -35.62 ± 10.94 112.38 ± 9.57
MX1 -0.986 ± 0.174 0.159 ± 1.059 -0.051 ± 0.051 -2.93 ± 36.17 170.84 ± 61.55
MX2 -0.826 ± 0.098 0.535 ± 0.144 0.177 ± 0.175 10.19 ± 12.58 147.06 ± 9.85
MX3 -0.943 ± 0.067 0.330 ± 0.189 -0.032 ± 0.032 -1.82 ± 13.71 160.71 ± 11.49
RH08 -0.996 ± 0.001 0.009 ± 0.019 -0.084 ± 0.084 -4.81 ± 0.93 179.50 ± 1.07
RH09 -0.997 ± 0.005 -0.026 ± 0.069 -0.073 ± 0.072 -4.16 ± 4.03 181.50 ± 3.95
RH10 -0.997 ± 0.005 -0.026 ± 0.069 -0.073 ± 0.072 -4.16 ± 4.03 181.50 ± 3.95
Average -0.858 0.286 -0.066 -4.071 159.894
Median -0.943 0.330 -0.051 -2.929 170.838
Deviation 0.235 0.303 0.236 14.270 24.095

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 47.8 ± 2.7 417.8 ± 29.7 1.59 ± 0.16
VC 12.6 ± 4.7 225.0 ± 41.3 1.59 ± 0.16
MX1 61.0 ± 1.2 496.1 ± 26.9 1.59 ± 0.16
MX2 48.4 ± 2.6 424.9 ± 29.7 1.59 ± 0.16
MX3 52.4 ± 1.3 481.3 ± 30.3 1.59 ± 0.16
RH08 68.1 ± 1.2 497.3 ± 23.9 1.59 ± 0.16
RH09 70.2 ± 1.2 495.8 ± 22.7 1.59 ± 0.16
RH10 70.2 ± 1.2 495.8 ± 22.7 1.59 ± 0.16
Average 53.8 441.7 1.59
Median 61.0 495.8 1.59
Deviation 19.1 93.6 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 51.6 ± 2.0 19.4 ± 1.3 54.9 ± 3.5 84.8 ± 4.5 2.67 ± 0.20 0.61 ± 0.04
VC 99.9 ± 2.1 29.2 ± 2.2 79.6 ± 5.1 81.9 ± 5.1 3.45 ± 0.30 1.22 ± 0.07
MX1 43.2 ± 2.7 13.8 ± 0.9 39.6 ± 2.5 85.9 ± 4.4 3.14 ± 0.32 0.50 ± 0.04
MX2 51.6 ± 2.0 19.1 ± 1.3 54.2 ± 3.4 84.9 ± 4.5 2.71 ± 0.21 0.61 ± 0.04
MX3 51.2 ± 2.4 17.5 ± 1.1 49.8 ± 3.2 85.2 ± 4.5 2.94 ± 0.26 0.60 ± 0.04
RH8 37.0 ± 3.0 10.6 ± 0.6 30.5 ± 1.9 86.4 ± 4.3 3.52 ± 0.41 0.43 ± 0.04
RH9 34.5 ± 3.1 9.6 ± 0.6 27.7 ± 1.8 86.5 ± 4.3 3.62 ± 0.45 0.40 ± 0.04
RH10 34.5 ± 3.1 9.6 ± 0.6 27.7 ± 1.8 86.5 ± 4.3 3.62 ± 0.45 0.40 ± 0.04
Average 50.5 16.1 45.5 85.3 3.2 0.6
Median 51.2 17.5 49.8 85.9 3.4 0.6
Deviation 21.4 6.7 17.9 1.5 0.4 0.3

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 29.6 ± 12.8 22.9 ± 2.3 30.1 ± 2.9 59.7 ± 5.7 1.27 ± 0.52 0.49 ± 0.20
VC 60.7 ± 17.6 39.4 ± 4.0 43.7 ± 4.3 50.3 ± 4.7 1.53 ± 0.37 1.19 ± 0.28
MX1 24.9 ± 11.0 15.9 ± 1.6 21.7 ± 2.1 61.9 ± 6.0 1.53 ± 0.63 0.39 ± 0.16
MX2 29.7 ± 12.7 22.6 ± 2.2 29.7 ± 2.9 59.8 ± 5.8 1.29 ± 0.52 0.49 ± 0.20
MX3 28.9 ± 12.7 20.5 ± 2.0 27.3 ± 2.7 60.5 ± 5.8 1.38 ± 0.56 0.47 ± 0.19
RH8 22.1 ± 9.5 12.1 ± 1.2 16.7 ± 1.6 62.8 ± 6.1 1.79 ± 0.70 0.34 ± 0.13
RH9 20.9 ± 9.0 11.0 ± 1.1 15.2 ± 1.5 63.0 ± 6.1 1.87 ± 0.73 0.33 ± 0.13
RH10 20.9 ± 9.0 11.0 ± 1.1 15.2 ± 1.5 63.0 ± 6.1 1.87 ± 0.73 0.33 ± 0.13
Average 29.7 19.4 24.9 60.1 1.6 0.5
Median 28.9 20.5 27.3 61.9 1.5 0.5
Deviation 13.1 9.5 9.8 4.2 0.2 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 Fri Jun 13 11:06:02 2014
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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