CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20012570159
Observation time: 09/14/2001 257.08311 0159 [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 257.083108
Arrival time of shock [seconds of day] 7180.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 40.106
Y GSE location of spacecraft [Re] -39.062
Z GSE location of spacecraft [Re] 2.681
Upstream plasma points selected for analysis 0008
Upstream field points selected for analysis 0244
Downstream plasma points selected for analysis 0005
Downstream field points selected for analysis 0161
Minimum chisq/dof for RH8,RH9,RH10 11.46, 25.25, 26.20
Event added to database
Mon Feb 14 11:15:24 2005
Event last processed
Mon Mar 30 21:38:15 2009
Method selected
RH08
Propagation delay to Earth [minutes]
6.381 ± 0.316

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -368.8 ± 0.5 -426.4 ± 3.8
Vy GSE [km/s] 10.2 ± 1.2 -24.6 ± 3.3
Vz GSE [km/s] -3.2 ± 1.0 7.0 ± 5.0
Wi [km/s] 16.7 ± 0.6 33.7 ± 1.5
We [km/s] 527.1 ± 18.3 1064.6 ± 46.4
Ni [n/cc] 10.3 ± 0.3 19.9 ± 2.2
Bx GSE [nT] 3.6 ± 0.1 5.2 ± 0.8
By GSE [nT] -0.4 ± 0.2 -3.3 ± 2.6
Bz GSE [nT] 4.4 ± 0.1 12.9 ± 0.4
Plasma Beta
0.183 ± 0.186
0.230 ± 0.221
Sound Speed [km/s]
21.52 ± 0.75
43.46 ± 1.90
Alfven Speed [km/s]
39.02 ± 0.87
71.06 ± 7.81

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.951 ± 0.078 -0.308 ± 0.241 -0.003 ± 0.003 -0.17 ± 11.11 197.94 ± 14.54
VC -0.846 ± 0.031 -0.512 ± 0.049 0.150 ± 0.149 8.63 ± 3.98 211.20 ± 3.30
MX1 -0.887 ± 0.021 -0.461 ± 0.041 0.010 ± 0.010 0.59 ± 3.81 207.46 ± 2.62
MX2 -0.882 ± 0.030 -0.471 ± 0.057 0.012 ± 0.012 0.68 ± 3.40 208.11 ± 3.71
MX3 -0.878 ± 0.036 -0.478 ± 0.066 0.012 ± 0.012 0.68 ± 3.27 208.55 ± 4.31
RH08 -0.972 ± 0.003 -0.234 ± 0.013 0.028 ± 0.028 1.60 ± 1.32 193.54 ± 0.77
RH09 -0.987 ± 0.011 0.009 ± 0.070 0.162 ± 0.161 9.32 ± 4.03 179.50 ± 4.07
RH10 -0.989 ± 0.011 -0.009 ± 0.070 0.151 ± 0.150 8.68 ± 4.03 180.50 ± 4.07
Average -0.924 -0.308 0.065 3.750 198.349
Median -0.887 -0.308 0.028 1.601 207.461
Deviation 0.057 0.212 0.074 4.276 12.787

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 54.0 ± 1.6 483.0 ± 21.6 1.97 ± 0.24
VC 67.1 ± 1.8 448.9 ± 19.3 1.97 ± 0.24
MX1 58.3 ± 1.8 462.9 ± 20.8 1.97 ± 0.24
MX2 58.6 ± 1.8 461.0 ± 20.7 1.97 ± 0.24
MX3 58.8 ± 1.8 459.7 ± 20.7 1.97 ± 0.24
RH08 54.5 ± 1.5 489.3 ± 21.6 1.97 ± 0.24
RH09 59.7 ± 1.1 483.9 ± 20.2 1.97 ± 0.24
RH10 59.2 ± 1.1 485.6 ± 20.4 1.97 ± 0.24
Average 58.8 471.8 1.97
Median 58.8 483.0 1.97
Deviation 4.0 15.3 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 135.2 ± 0.6 11.4 ± 0.4 22.9 ± 0.5 43.1 ± 1.0 11.82 ± 0.42 3.14 ± 0.09
VC 142.7 ± 0.8 7.4 ± 0.2 15.2 ± 0.3 43.9 ± 1.1 19.22 ± 0.68 3.25 ± 0.09
MX1 140.3 ± 0.7 10.2 ± 0.3 20.5 ± 0.5 43.4 ± 1.0 13.80 ± 0.49 3.24 ± 0.09
MX2 140.5 ± 0.7 10.1 ± 0.3 20.3 ± 0.5 43.4 ± 1.0 13.96 ± 0.50 3.24 ± 0.09
MX3 140.6 ± 0.7 10.0 ± 0.3 20.2 ± 0.5 43.4 ± 1.0 14.05 ± 0.50 3.24 ± 0.09
RH8 133.3 ± 0.6 11.3 ± 0.4 22.7 ± 0.5 43.1 ± 1.0 11.78 ± 0.41 3.09 ± 0.08
RH9 120.4 ± 0.6 9.7 ± 0.3 19.7 ± 0.4 43.5 ± 1.0 12.38 ± 0.41 2.77 ± 0.07
RH10 121.6 ± 0.6 9.9 ± 0.3 20.0 ± 0.4 43.4 ± 1.0 12.29 ± 0.41 2.80 ± 0.07
Average 134.3 10.0 20.2 43.4 13.7 3.1
Median 140.3 10.1 20.3 43.4 13.8 3.2
Deviation 8.8 1.2 2.4 0.3 2.4 0.2

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 69.8 ± 3.2 22.6 ± 1.0 41.7 ± 4.6 80.3 ± 7.0 3.10 ± 0.22 0.88 ± 0.10
VC 74.7 ± 2.4 14.6 ± 0.7 27.6 ± 3.0 82.1 ± 7.0 5.12 ± 0.27 0.92 ± 0.09
MX1 73.2 ± 2.8 20.0 ± 0.9 37.4 ± 4.1 80.9 ± 7.0 3.66 ± 0.23 0.91 ± 0.10
MX2 73.3 ± 2.8 19.8 ± 0.9 37.0 ± 4.1 81.0 ± 7.0 3.70 ± 0.23 0.91 ± 0.10
MX3 73.4 ± 2.8 19.7 ± 0.9 36.8 ± 4.0 81.0 ± 7.0 3.73 ± 0.23 0.91 ± 0.10
RH8 69.0 ± 3.3 22.3 ± 1.0 41.3 ± 4.5 80.3 ± 7.0 3.10 ± 0.23 0.87 ± 0.10
RH9 62.3 ± 3.2 19.1 ± 0.9 35.8 ± 3.9 81.1 ± 7.0 3.26 ± 0.26 0.77 ± 0.10
RH10 62.9 ± 3.2 19.5 ± 0.9 36.4 ± 4.0 81.1 ± 7.0 3.24 ± 0.26 0.78 ± 0.10
Average 69.8 19.7 36.8 81.0 3.6 0.9
Median 73.2 19.8 37.0 81.0 3.7 0.9
Deviation 4.9 2.4 4.3 0.6 0.7 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 Mon Apr 13 08:55:21 2009
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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