CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20012950041
Observation time: 10/22/2001 295.02894 0041 [UT]

Wind spacecraft

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Wave speed and Mach numbers
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Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2001
Fractional day of year 295.028941
Arrival time of shock [seconds of day] 2500.5 ± 3.0
Shock type FR
Electron data availability 0
X GSE location of spacecraft [Re] 39.094
Y GSE location of spacecraft [Re] -5.154
Z GSE location of spacecraft [Re] 2.955
Upstream plasma points selected for analysis 0009
Upstream field points selected for analysis 0279
Downstream plasma points selected for analysis 0006
Downstream field points selected for analysis 0178
Minimum chisq/dof for RH8,RH9,RH10 3.82, 5.16, 5.28
Event added to database
Mon Feb 14 11:16:02 2005
Event last processed
Mon Mar 30 21:54:12 2009
Method selected
RH08
Propagation delay to Earth [minutes]
6.962 ± 0.196

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -653.6 ± 3.9 -684.6 ± 2.9
Vy GSE [km/s] -15.5 ± 6.1 5.3 ± 2.0
Vz GSE [km/s] 14.5 ± 9.0 12.0 ± 1.9
Wi [km/s] 43.9 ± 1.0 36.8 ± 1.7
We [km/s] 1387.1 ± 30.3 1163.7 ± 53.9
Ni [n/cc] 49.2 ± 3.0 30.8 ± 1.2
Bx GSE [nT] -10.2 ± 1.7 -7.7 ± 0.8
By GSE [nT] -14.7 ± 1.3 -8.5 ± 0.4
Bz GSE [nT] -7.3 ± 2.9 -0.3 ± 1.9
Plasma Beta
0.520 ± 0.516
0.671 ± 0.679
Sound Speed [km/s]
56.63 ± 1.24
47.51 ± 2.20
Alfven Speed [km/s]
61.16 ± 3.47
45.55 ± 3.92

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.767 ± 0.208 -0.404 ± 0.313 0.499 ± 0.453 29.94 ± 17.22 207.76 ± 22.81
VC -0.833 ± 0.087 0.551 ± 0.130 -0.046 ± 0.046 -2.62 ± 13.07 146.53 ± 8.96
MX1 -0.900 ± 0.088 0.421 ± 0.183 -0.115 ± 0.115 -6.61 ± 10.87 154.95 ± 11.65
MX2 -0.940 ± 0.096 0.335 ± 0.266 -0.063 ± 0.063 -3.64 ± 12.25 160.37 ± 16.22
MX3 -0.875 ± 0.086 0.461 ± 0.158 -0.147 ± 0.146 -8.46 ± 10.67 152.21 ± 10.28
RH08 -0.991 ± 0.003 0.078 ± 0.026 0.106 ± 0.106 6.09 ± 1.50 175.49 ± 1.52
RH09 -0.991 ± 0.009 0.113 ± 0.068 0.073 ± 0.072 4.16 ± 4.03 173.48 ± 3.95
RH10 -0.991 ± 0.009 0.113 ± 0.068 0.073 ± 0.072 4.16 ± 4.03 173.48 ± 3.95
Average -0.911 0.209 0.047 2.880 168.034
Median -0.900 0.335 0.073 4.165 173.482
Deviation 0.083 0.305 0.205 12.174 19.404

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 58.8 ± 8.6 496.3 ± 16.1 0.61 ± 0.03
VC 88.0 ± 4.6 474.5 ± 14.1 0.61 ± 0.03
MX1 78.8 ± 4.6 520.5 ± 14.4 0.61 ± 0.03
MX2 74.9 ± 4.7 548.7 ± 13.3 0.61 ± 0.03
MX3 80.6 ± 4.6 502.6 ± 15.0 0.61 ± 0.03
RH08 65.4 ± 5.4 593.2 ± 11.2 0.61 ± 0.03
RH09 66.3 ± 5.2 590.1 ± 11.4 0.61 ± 0.03
RH10 66.3 ± 5.2 590.1 ± 11.4 0.61 ± 0.03
Average 72.4 539.5 0.61
Median 74.9 548.7 0.61
Deviation 9.8 47.6 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -18.3 ± 5.6 22.3 ± 0.5 31.7 ± 1.8 80.3 ± 2.3 -0.82 ± 0.25 -0.23 ± 0.07
VC -61.0 ± 5.3 1.5 ± 0.0 2.2 ± 0.1 83.4 ± 2.4 -41.47 ± 3.18 -0.73 ± 0.05
MX1 -59.5 ± 5.5 8.1 ± 0.2 11.9 ± 0.7 83.0 ± 2.4 -7.35 ± 0.60 -0.72 ± 0.06
MX2 -59.5 ± 4.9 10.9 ± 0.2 15.9 ± 0.9 82.7 ± 2.3 -5.48 ± 0.40 -0.72 ± 0.05
MX3 -60.1 ± 5.8 6.8 ± 0.2 9.9 ± 0.6 83.1 ± 2.4 -8.87 ± 0.77 -0.72 ± 0.06
RH8 -55.1 ± 3.4 17.7 ± 0.4 25.5 ± 1.4 81.5 ± 2.3 -3.11 ± 0.17 -0.68 ± 0.04
RH9 -56.9 ± 3.6 17.1 ± 0.4 24.6 ± 1.4 81.6 ± 2.3 -3.33 ± 0.19 -0.70 ± 0.04
RH10 -56.9 ± 3.6 17.1 ± 0.4 24.6 ± 1.4 81.6 ± 2.3 -3.33 ± 0.19 -0.70 ± 0.04
Average -53.4 12.7 18.3 82.2 -9.2 -0.6
Median -56.9 17.1 24.6 82.7 -3.3 -0.7
Deviation 14.3 7.0 9.9 1.0 13.3 0.2

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -32.5 ± 3.4 17.6 ± 0.8 23.6 ± 2.0 63.5 ± 2.4 -1.85 ± 0.17 -0.51 ± 0.05
VC -98.3 ± 2.4 1.2 ± 0.1 1.6 ± 0.1 65.9 ± 2.5 -84.95 ± 4.57 -1.49 ± 0.07
MX1 -96.4 ± 2.4 6.4 ± 0.3 8.8 ± 0.8 65.6 ± 2.5 -15.12 ± 0.79 -1.47 ± 0.07
MX2 -95.8 ± 2.6 8.6 ± 0.4 11.8 ± 1.0 65.3 ± 2.5 -11.19 ± 0.57 -1.47 ± 0.07
MX3 -97.1 ± 2.4 5.3 ± 0.2 7.4 ± 0.6 65.7 ± 2.5 -18.21 ± 0.96 -1.48 ± 0.07
RH8 -87.2 ± 3.0 14.0 ± 0.6 19.0 ± 1.6 64.4 ± 2.4 -6.25 ± 0.31 -1.36 ± 0.06
RH9 -89.8 ± 2.9 13.5 ± 0.6 18.3 ± 1.6 64.5 ± 2.4 -6.68 ± 0.33 -1.39 ± 0.07
RH10 -89.8 ± 2.9 13.5 ± 0.6 18.3 ± 1.6 64.5 ± 2.4 -6.68 ± 0.33 -1.39 ± 0.07
Average -85.9 10.0 13.6 64.9 -18.9 -1.3
Median -89.8 13.5 18.3 65.3 -6.7 -1.4
Deviation 21.9 5.5 7.4 0.8 27.2 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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