CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20000420235
Observation time: 02/11/2000 42.10780 0235 [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
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2000
Fractional day of year 42.107795
Arrival time of shock [seconds of day] 9313.5 ± 6.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 127.635
Y GSE location of spacecraft [Re] -5.473
Z GSE location of spacecraft [Re] 8.709
Upstream plasma points selected for analysis 0010
Upstream field points selected for analysis 0325
Downstream plasma points selected for analysis 0007
Downstream field points selected for analysis 0234
Minimum chisq/dof for RH8,RH9,RH10 5.94, 8.04, 8.19
Event added to database
Mon Feb 14 11:09:07 2005
Event last processed
Mon Mar 30 19:11:31 2009
Method selected
RH08
Propagation delay to Earth [minutes]
25.959 ± 0.710

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -406.3 ± 4.6 -477.3 ± 14.4
Vy GSE [km/s] 0.2 ± 9.4 18.4 ± 18.0
Vz GSE [km/s] -20.2 ± 18.0 -5.7 ± 12.6
Wi [km/s] 31.0 ± 7.1 69.0 ± 10.7
We [km/s] 981.8 ± 223.1 2181.9 ± 338.3
Ni [n/cc] 2.5 ± 0.2 6.6 ± 1.2
Bx GSE [nT] 5.2 ± 0.2 8.4 ± 1.5
By GSE [nT] -0.6 ± 0.5 2.7 ± 2.0
Bz GSE [nT] -0.5 ± 1.1 1.6 ± 2.1
Plasma Beta
0.186 ± 0.166
0.861 ± 0.935
Sound Speed [km/s]
40.08 ± 9.11
89.08 ± 13.81
Alfven Speed [km/s]
74.31 ± 2.98
81.94 ± 17.66

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.872 ± 0.151 0.391 ± 0.272 0.294 ± 0.286 17.12 ± 19.55 155.85 ± 17.67
VC -0.953 ± 0.078 0.242 ± 0.246 0.180 ± 0.178 10.35 ± 15.09 165.75 ± 14.79
MX1 -0.921 ± 0.184 0.218 ± 0.540 0.324 ± 0.312 18.88 ± 24.03 166.69 ± 33.58
MX2 -0.897 ± 0.166 0.354 ± 0.363 0.265 ± 0.258 15.34 ± 20.03 158.49 ± 23.05
MX3 -0.889 ± 0.163 0.370 ± 0.334 0.271 ± 0.264 15.74 ± 19.69 157.42 ± 21.42
RH08 -0.998 ± 0.001 0.061 ± 0.018 -0.006 ± 0.006 -0.32 ± 0.85 176.49 ± 1.02
RH09 -0.999 ± 0.003 0.044 ± 0.069 0.006 ± 0.006 0.32 ± 4.05 177.49 ± 3.94
RH10 -0.999 ± 0.003 0.044 ± 0.069 -0.006 ± 0.006 -0.32 ± 4.05 177.49 ± 3.94
Average -0.941 0.215 0.166 9.639 166.958
Median -0.921 0.242 0.265 15.340 166.688
Deviation 0.053 0.150 0.145 8.425 9.262

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 23.5 ± 4.0 469.6 ± 17.7 2.56 ± 0.49
VC 14.2 ± 5.2 506.7 ± 15.4 2.56 ± 0.49
MX1 18.2 ± 5.8 489.7 ± 15.1 2.56 ± 0.49
MX2 20.8 ± 4.1 480.6 ± 17.0 2.56 ± 0.49
MX3 21.8 ± 4.0 477.8 ± 17.3 2.56 ± 0.49
RH08 12.0 ± 7.7 524.7 ± 14.5 2.56 ± 0.49
RH09 12.2 ± 7.2 525.1 ± 14.3 2.56 ± 0.49
RH10 12.4 ± 7.5 524.9 ± 14.4 2.56 ± 0.49
Average 16.9 499.9 2.56
Median 18.2 506.7 2.56
Deviation 4.7 23.3 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 121.2 ± 4.6 35.3 ± 6.8 68.2 ± 2.7 76.9 ± 2.6 3.53 ± 0.62 1.58 ± 0.08
VC 123.0 ± 4.2 38.1 ± 7.9 72.0 ± 2.9 75.5 ± 2.6 3.34 ± 0.65 1.63 ± 0.09
MX1 122.1 ± 4.7 37.1 ± 7.5 70.6 ± 2.8 76.0 ± 2.5 3.40 ± 0.60 1.61 ± 0.07
MX2 121.4 ± 4.4 36.2 ± 7.2 69.5 ± 2.8 76.5 ± 2.6 3.46 ± 0.63 1.59 ± 0.08
MX3 122.1 ± 4.5 35.9 ± 7.0 69.0 ± 2.8 76.6 ± 2.6 3.50 ± 0.63 1.60 ± 0.08
RH8 119.1 ± 4.8 38.7 ± 8.2 72.7 ± 2.9 75.2 ± 2.6 3.20 ± 0.68 1.59 ± 0.10
RH9 119.4 ± 4.7 38.6 ± 8.2 72.6 ± 2.9 75.2 ± 2.6 3.22 ± 0.68 1.59 ± 0.10
RH10 118.9 ± 4.8 38.6 ± 8.2 72.6 ± 2.9 75.2 ± 2.6 3.21 ± 0.68 1.58 ± 0.10
Average 120.9 37.3 70.9 75.9 3.4 1.6
Median 121.4 38.1 72.0 76.0 3.4 1.6
Deviation 1.6 1.4 1.8 0.7 0.1 0.0

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 47.8 ± 14.6 61.7 ± 4.5 75.2 ± 16.2 105.9 ± 7.6 0.78 ± 0.27 0.45 ± 0.13
VC 48.2 ± 14.3 67.9 ± 6.0 79.4 ± 17.1 101.9 ± 8.7 0.72 ± 0.25 0.47 ± 0.12
MX1 48.0 ± 14.5 65.4 ± 5.3 77.8 ± 16.8 103.6 ± 8.2 0.74 ± 0.26 0.46 ± 0.12
MX2 47.4 ± 14.5 63.6 ± 4.9 76.6 ± 16.5 104.7 ± 7.9 0.75 ± 0.26 0.45 ± 0.13
MX3 48.3 ± 14.6 62.9 ± 4.7 76.1 ± 16.4 105.1 ± 7.8 0.77 ± 0.26 0.46 ± 0.13
RH8 47.1 ± 14.3 69.1 ± 6.4 80.1 ± 17.3 101.0 ± 9.1 0.69 ± 0.24 0.47 ± 0.12
RH9 47.5 ± 14.3 69.0 ± 6.3 80.1 ± 17.3 101.1 ± 9.0 0.69 ± 0.24 0.47 ± 0.12
RH10 47.2 ± 14.3 68.9 ± 6.3 80.0 ± 17.3 101.1 ± 9.0 0.69 ± 0.24 0.47 ± 0.12
Average 47.7 66.1 78.2 103.0 0.7 0.5
Median 47.8 67.9 79.4 103.6 0.7 0.5
Deviation 0.4 3.1 2.0 2.0 0.0 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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