CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20011852250
Observation time: 07/04/2001 185.95141 2250 [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
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Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2001
Fractional day of year 185.951406
Arrival time of shock [seconds of day] 82201.5 ± 6.0
Shock type SF
Electron data availability 0
X GSE location of spacecraft [Re] 42.889
Y GSE location of spacecraft [Re] 222.134
Z GSE location of spacecraft [Re] 15.261
Upstream plasma points selected for analysis 0007
Upstream field points selected for analysis 0231
Downstream plasma points selected for analysis 0008
Downstream field points selected for analysis 0243
Minimum chisq/dof for RH8,RH9,RH10 5.63, 6.18, 6.69
Event added to database
Mon Feb 14 11:14:23 2005
Event last processed
Mon Mar 30 21:15:25 2009
Method selected
MX3
Propagation delay to Earth [minutes]
18.763 ± 21.231

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -391.6 ± 3.0 -418.5 ± 2.7
Vy GSE [km/s] 2.3 ± 4.4 40.2 ± 1.7
Vz GSE [km/s] -27.7 ± 2.5 -11.2 ± 2.2
Wi [km/s] 49.7 ± 2.3 53.5 ± 3.1
We [km/s] 1572.9 ± 73.2 1690.3 ± 97.1
Ni [n/cc] 6.9 ± 0.4 9.6 ± 0.2
Bx GSE [nT] 3.6 ± 0.4 -2.5 ± 0.6
By GSE [nT] -6.8 ± 0.4 3.6 ± 1.4
Bz GSE [nT] -3.2 ± 0.3 1.6 ± 0.5
Plasma Beta
0.522 ± 0.553
3.138 ± 3.193
Sound Speed [km/s]
64.21 ± 2.99
69.01 ± 3.96
Alfven Speed [km/s]
69.56 ± 4.65
33.73 ± 8.49

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.914 ± 0.282 -0.381 ± 0.620 -0.139 ± 0.138 -7.97 ± 51.04 202.64 ± 38.76
VC -0.545 ± 0.044 0.769 ± 0.034 0.334 ± 0.321 19.52 ± 3.08 125.29 ± 3.19
MX1 -0.877 ± 0.136 -0.319 ± 0.208 -0.359 ± 0.343 -21.04 ± 19.46 199.98 ± 13.29
MX2 -0.992 ± 0.131 -0.119 ± 1.035 -0.049 ± 0.049 -2.79 ± 49.52 186.83 ± 59.81
MX3 -0.917 ± 0.216 -0.159 ± 0.475 -0.366 ± 0.349 -21.47 ± 31.80 189.81 ± 29.57
RH08 -0.860 ± 0.012 -0.488 ± 0.017 -0.151 ± 0.150 -8.68 ± 2.87 209.58 ± 1.12
RH09 -0.860 ± 0.018 -0.488 ± 0.027 -0.151 ± 0.150 -8.68 ± 4.21 209.58 ± 1.78
RH10 -0.860 ± 0.019 -0.488 ± 0.030 -0.151 ± 0.150 -8.68 ± 4.26 209.58 ± 1.95
Average -0.853 -0.209 -0.129 -7.473 191.662
Median -0.860 -0.319 -0.151 -8.675 202.638
Deviation 0.133 0.421 0.218 12.732 28.247

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 88.4 ± 2.6 388.3 ± 11.2 1.39 ± 0.11
VC 8.0 ± 2.6 392.5 ± 25.2 1.39 ± 0.11
MX1 88.7 ± 2.7 372.4 ± 10.8 1.39 ± 0.11
MX2 71.9 ± 2.6 465.6 ± 15.8 1.39 ± 0.11
MX3 82.9 ± 2.8 411.4 ± 12.8 1.39 ± 0.11
RH08 85.0 ± 2.5 346.0 ± 9.8 1.39 ± 0.11
RH09 85.0 ± 2.5 346.0 ± 9.8 1.39 ± 0.11
RH10 85.0 ± 2.5 346.0 ± 9.8 1.39 ± 0.11
Average 74.4 383.5 1.39
Median 85.0 388.3 1.39
Deviation 27.3 41.4 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 27.4 ± 1.9 1.3 ± 0.0 2.0 ± 0.1 94.8 ± 2.2 20.61 ± 1.54 0.29 ± 0.02
VC 186.8 ± 5.2 60.6 ± 1.6 68.9 ± 4.6 72.8 ± 3.0 3.08 ± 0.17 2.57 ± 0.07
MX1 19.7 ± 1.7 1.0 ± 0.0 1.5 ± 0.1 94.8 ± 2.2 18.99 ± 1.70 0.21 ± 0.02
MX2 76.2 ± 2.6 14.8 ± 0.3 21.6 ± 1.4 93.6 ± 2.2 5.16 ± 0.21 0.81 ± 0.03
MX3 42.6 ± 1.9 5.8 ± 0.1 8.5 ± 0.6 94.6 ± 2.2 7.36 ± 0.36 0.45 ± 0.02
RH8 6.3 ± 1.9 4.1 ± 0.1 6.0 ± 0.4 94.7 ± 2.2 1.54 ± 0.47 0.07 ± 0.02
RH9 6.3 ± 1.9 4.1 ± 0.1 6.0 ± 0.4 94.7 ± 2.2 1.54 ± 0.47 0.07 ± 0.02
RH10 6.3 ± 1.9 4.1 ± 0.1 6.0 ± 0.4 94.7 ± 2.2 1.54 ± 0.47 0.07 ± 0.02
Average 46.4 12.0 15.1 91.8 7.5 0.6
Median 27.4 4.1 6.0 94.7 5.2 0.3
Deviation 61.5 20.1 22.6 7.7 7.9 0.8

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 19.6 ± 2.3 0.8 ± 0.2 1.0 ± 0.2 77.3 ± 1.0 23.98 ± 5.16 0.25 ± 0.03
VC 137.5 ± 2.6 33.2 ± 8.3 33.4 ± 8.4 69.3 ± 3.8 4.37 ± 1.08 1.99 ± 0.13
MX1 14.1 ± 2.4 0.7 ± 0.1 0.7 ± 0.2 77.3 ± 1.0 22.23 ± 5.80 0.18 ± 0.03
MX2 54.9 ± 2.6 9.3 ± 1.8 10.5 ± 2.6 76.7 ± 1.0 6.10 ± 1.20 0.72 ± 0.03
MX3 30.0 ± 2.6 3.7 ± 0.7 4.1 ± 1.0 77.2 ± 1.0 8.47 ± 1.81 0.39 ± 0.03
RH8 4.2 ± 2.1 2.6 ± 0.5 2.9 ± 0.7 77.3 ± 1.0 1.64 ± 0.89 0.05 ± 0.03
RH9 4.2 ± 2.1 2.6 ± 0.5 2.9 ± 0.7 77.3 ± 1.0 1.64 ± 0.89 0.05 ± 0.03
RH10 4.2 ± 2.1 2.6 ± 0.5 2.9 ± 0.7 77.3 ± 1.0 1.64 ± 0.89 0.05 ± 0.03
Average 33.6 6.9 7.3 76.2 8.8 0.5
Median 19.6 2.6 2.9 77.3 6.1 0.3
Deviation 45.4 11.0 11.0 2.8 9.2 0.7

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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