CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20012432359
Observation time: 08/31/2001 243.99995 2359 [UT]

Wind spacecraft

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Asymptotic parameters
Shock front normals
Key parameters
Wave speed and Mach numbers
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Selected
Simple methods
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2001
Fractional day of year 243.999948
Arrival time of shock [seconds of day] 86395.5 ± 41.0
Shock type SF
Electron data availability 0
X GSE location of spacecraft [Re] 19.276
Y GSE location of spacecraft [Re] 136.402
Z GSE location of spacecraft [Re] 5.619
Upstream plasma points selected for analysis 0009
Upstream field points selected for analysis 0269
Downstream plasma points selected for analysis 0010
Downstream field points selected for analysis 0300
Minimum chisq/dof for RH8,RH9,RH10 89.89, 95.10, 96.32
Event added to database
Mon Feb 14 11:15:14 2005
Event last processed
Mon Mar 30 21:35:00 2009
Method selected
RH08
Propagation delay to Earth [minutes]
2.721 ± 0.974

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -436.6 ± 3.2 -485.3 ± 3.2
Vy GSE [km/s] 10.9 ± 2.9 30.7 ± 1.8
Vz GSE [km/s] -4.6 ± 6.1 -3.0 ± 3.0
Wi [km/s] 31.9 ± 2.7 52.0 ± 1.2
We [km/s] 1008.9 ± 85.6 1644.4 ± 37.3
Ni [n/cc] 1.4 ± 0.2 3.6 ± 0.2
Bx GSE [nT] 4.3 ± 0.2 -0.4 ± 0.5
By GSE [nT] -2.4 ± 0.4 -1.0 ± 0.2
Bz GSE [nT] -0.3 ± 0.8 -1.4 ± 0.2
Plasma Beta
0.127 ± 0.119
7.205 ± 8.279
Sound Speed [km/s]
41.19 ± 3.49
67.13 ± 1.52
Alfven Speed [km/s]
91.76 ± 8.10
20.45 ± 4.65

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.964 ± 0.353 0.255 ± 1.308 0.081 ± 0.081 4.65 ± 49.17 165.17 ± 77.76
VC -0.926 ± 0.020 0.376 ± 0.049 0.030 ± 0.030 1.74 ± 7.01 157.89 ± 3.04
MX1 -0.685 ± 0.676 -0.721 ± 0.642 0.106 ± 0.105 6.08 ± 33.80 226.49 ± 53.61
MX2 -0.965 ± 0.341 0.246 ± 1.303 0.093 ± 0.093 5.35 ± 49.63 165.69 ± 77.36
MX3 -0.625 ± 0.661 0.453 ± 0.714 0.636 ± 0.532 39.47 ± 53.85 144.12 ± 57.03
RH08 -0.999 ± 0.002 0.044 ± 0.035 0.028 ± 0.028 1.60 ± 2.00 177.49 ± 2.00
RH09 -0.999 ± 0.002 0.026 ± 0.060 0.028 ± 0.028 1.60 ± 3.10 178.50 ± 3.41
RH10 -0.999 ± 0.002 0.026 ± 0.066 0.028 ± 0.028 1.60 ± 3.40 178.50 ± 3.78
Average -0.895 0.088 0.129 7.761 174.229
Median -0.964 0.246 0.081 4.645 177.493
Deviation 0.151 0.365 0.207 12.949 24.221

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 16.9 ± 3.7 508.8 ± 12.4 2.60 ± 0.51
VC 11.1 ± 4.7 494.7 ± 12.5 2.60 ± 0.51
MX1 75.7 ± 3.8 322.2 ± 5.4 2.60 ± 0.51
MX2 17.5 ± 3.5 509.1 ± 12.3 2.60 ± 0.51
MX3 36.9 ± 9.3 341.8 ± 10.2 2.60 ± 0.51
RH08 28.0 ± 5.0 517.4 ± 11.8 2.60 ± 0.51
RH09 28.9 ± 4.9 517.0 ± 11.8 2.60 ± 0.51
RH10 28.9 ± 4.9 517.0 ± 11.8 2.60 ± 0.51
Average 30.5 466.0 2.60
Median 28.9 509.1 2.60
Deviation 20.1 83.2 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 85.8 ± 3.7 39.0 ± 3.2 87.8 ± 7.7 92.8 ± 7.8 2.21 ± 0.12 0.93 ± 0.11
VC 86.5 ± 3.6 40.2 ± 3.3 90.1 ± 7.9 92.2 ± 8.0 2.16 ± 0.13 0.95 ± 0.12
MX1 31.6 ± 2.0 9.3 ± 0.6 22.6 ± 2.0 100.3 ± 6.3 3.42 ± 0.17 0.32 ± 0.03
MX2 85.7 ± 3.7 38.8 ± 3.2 87.5 ± 7.7 92.8 ± 7.8 2.21 ± 0.12 0.93 ± 0.11
MX3 66.8 ± 5.8 31.5 ± 2.3 73.3 ± 6.5 95.6 ± 7.2 2.12 ± 0.19 0.70 ± 0.10
RH8 81.1 ± 3.3 35.4 ± 2.7 81.0 ± 7.2 94.2 ± 7.5 2.30 ± 0.12 0.87 ± 0.10
RH9 80.6 ± 3.3 35.0 ± 2.7 80.3 ± 7.1 94.4 ± 7.4 2.31 ± 0.11 0.86 ± 0.10
RH10 80.6 ± 3.3 35.0 ± 2.7 80.3 ± 7.1 94.4 ± 7.4 2.31 ± 0.11 0.86 ± 0.10
Average 74.8 33.0 75.4 94.6 2.4 0.8
Median 81.1 35.4 81.0 94.4 2.3 0.9
Deviation 18.6 10.0 22.0 2.6 0.4 0.2

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 33.7 ± 3.1 19.5 ± 4.3 19.6 ± 4.4 67.4 ± 1.3 1.80 ± 0.38 0.50 ± 0.05
VC 33.9 ± 3.2 20.0 ± 4.5 20.1 ± 4.6 67.3 ± 1.4 1.76 ± 0.38 0.50 ± 0.05
MX1 12.4 ± 2.0 4.8 ± 0.9 5.0 ± 1.1 70.2 ± 0.8 2.69 ± 0.70 0.18 ± 0.03
MX2 33.6 ± 3.1 19.4 ± 4.3 19.5 ± 4.4 67.5 ± 1.3 1.80 ± 0.38 0.50 ± 0.05
MX3 26.3 ± 1.8 16.0 ± 3.4 16.3 ± 3.7 68.4 ± 0.9 1.69 ± 0.29 0.39 ± 0.03
RH8 31.5 ± 3.2 17.8 ± 3.9 18.1 ± 4.1 67.9 ± 1.1 1.84 ± 0.40 0.46 ± 0.05
RH9 31.4 ± 3.2 17.6 ± 3.8 17.9 ± 4.1 68.0 ± 1.1 1.85 ± 0.40 0.46 ± 0.05
RH10 31.4 ± 3.2 17.6 ± 3.8 17.9 ± 4.1 68.0 ± 1.1 1.85 ± 0.40 0.46 ± 0.05
Average 29.3 16.6 16.8 68.1 1.9 0.4
Median 31.5 17.8 18.1 68.0 1.8 0.5
Deviation 7.2 4.9 4.9 0.9 0.3 0.1

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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