CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20020771314
Observation time: 03/18/2002 77.55144 1314 [UT]

Wind spacecraft

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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 2002
Fractional day of year 77.551441
Arrival time of shock [seconds of day] 47644.5 ± 18.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 44.206
Y GSE location of spacecraft [Re] -122.757
Z GSE location of spacecraft [Re] -3.720
Upstream plasma points selected for analysis 0009
Upstream field points selected for analysis 0305
Downstream plasma points selected for analysis 0007
Downstream field points selected for analysis 0229
Minimum chisq/dof for RH8,RH9,RH10 7.00, 39.65, 16.42
Event added to database
Mon Feb 14 11:18:22 2005
Event last processed
Mon Mar 30 22:48:35 2009
Method selected
RH08
Propagation delay to Earth [minutes]
7.356 ± 0.574

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -312.4 ± 8.1 -470.5 ± 6.3
Vy GSE [km/s] -13.2 ± 4.5 -20.2 ± 3.1
Vz GSE [km/s] -0.2 ± 4.4 -24.8 ± 17.8
Wi [km/s] 32.3 ± 2.5 63.5 ± 7.9
We [km/s] 1022.5 ± 78.2 2008.4 ± 248.7
Ni [n/cc] 15.5 ± 2.4 37.4 ± 3.4
Bx GSE [nT] -3.6 ± 1.4 -2.0 ± 2.8
By GSE [nT] 3.1 ± 1.1 15.1 ± 5.5
Bz GSE [nT] -0.7 ± 0.7 -3.1 ± 4.7
Plasma Beta
1.430 ± 1.185
2.066 ± 0.801
Sound Speed [km/s]
41.74 ± 3.19
81.99 ± 10.15
Alfven Speed [km/s]
28.45 ± 4.08
59.51 ± 18.74

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.967 ± 0.116 0.248 ± 0.444 0.059 ± 0.059 3.37 ± 22.10 165.64 ± 26.32
VC -0.987 ± 0.017 -0.044 ± 0.032 -0.154 ± 0.152 -8.83 ± 6.25 182.54 ± 1.85
MX1 -0.988 ± 0.041 -0.058 ± 0.540 -0.142 ± 0.141 -8.16 ± 10.81 183.34 ± 31.30
MX2 -0.990 ± 0.035 0.091 ± 0.256 -0.109 ± 0.108 -6.24 ± 13.98 174.75 ± 14.83
MX3 -0.993 ± 0.030 0.058 ± 0.241 -0.104 ± 0.104 -5.97 ± 14.77 176.63 ± 13.89
RH08 -0.994 ± 0.001 -0.026 ± 0.010 -0.106 ± 0.106 -6.09 ± 0.58 181.50 ± 0.55
RH09 -0.999 ± 0.003 -0.026 ± 0.068 -0.028 ± 0.028 -1.60 ± 4.06 181.50 ± 3.91
RH10 -0.166 ± 0.070 0.284 ± 0.067 0.944 ± 0.407 70.76 ± 4.01 120.33 ± 12.32
Average -0.886 0.066 0.045 4.653 170.780
Median -0.988 0.058 -0.104 -5.971 181.504
Deviation 0.291 0.134 0.370 27.002 21.203

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 32.4 ± 16.9 556.9 ± 37.3 2.29 ± 0.37
VC 45.1 ± 20.5 579.7 ± 39.8 2.29 ± 0.37
MX1 45.9 ± 20.4 579.8 ± 39.8 2.29 ± 0.37
MX2 37.7 ± 20.2 574.9 ± 39.3 2.29 ± 0.37
MX3 39.5 ± 20.2 577.0 ± 39.5 2.29 ± 0.37
RH08 44.2 ± 20.3 580.0 ± 39.7 2.29 ± 0.37
RH09 44.8 ± 19.8 582.8 ± 39.4 2.29 ± 0.37
RH10 79.3 ± 7.9 50.1 ± 28.6 2.29 ± 0.37
Average 46.1 510.1 2.29
Median 44.8 579.7 2.29
Deviation 14.2 186.1 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 258.0 ± 7.3 21.8 ± 2.6 24.0 ± 3.4 45.7 ± 2.4 11.96 ± 1.40 5.66 ± 0.31
VC 270.7 ± 8.5 17.5 ± 2.0 20.1 ± 2.9 47.5 ± 2.3 15.59 ± 1.67 5.70 ± 0.27
MX1 270.2 ± 8.5 17.3 ± 1.9 19.8 ± 2.8 47.6 ± 2.3 15.82 ± 1.69 5.68 ± 0.27
MX2 266.7 ± 8.2 20.1 ± 2.3 22.5 ± 3.2 46.5 ± 2.4 13.42 ± 1.50 5.75 ± 0.29
MX3 267.6 ± 8.2 19.5 ± 2.2 22.0 ± 3.1 46.8 ± 2.4 13.89 ± 1.54 5.73 ± 0.29
RH8 269.1 ± 8.4 17.8 ± 2.0 20.4 ± 2.9 47.4 ± 2.3 15.24 ± 1.64 5.68 ± 0.27
RH9 270.2 ± 8.2 17.6 ± 2.0 20.2 ± 2.9 47.5 ± 2.3 15.50 ± 1.67 5.70 ± 0.27
RH10 2.0 ± 3.7 4.3 ± 0.4 5.3 ± 0.8 50.5 ± 2.5 0.50 ± 0.91 0.04 ± 0.07
Average 234.3 17.0 19.3 47.4 12.7 5.0
Median 269.1 17.8 20.4 47.5 15.2 5.7
Deviation 93.9 5.4 5.8 1.4 5.1 2.0

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 108.3 ± 7.1 43.4 ± 11.7 50.2 ± 15.8 92.8 ± 6.4 2.70 ± 0.94 1.17 ± 0.07
VC 110.5 ± 5.1 34.7 ± 9.0 42.0 ± 13.2 96.7 ± 6.5 3.45 ± 1.27 1.15 ± 0.06
MX1 110.1 ± 5.2 34.2 ± 8.8 41.4 ± 13.1 96.9 ± 6.5 3.50 ± 1.28 1.14 ± 0.06
MX2 108.2 ± 5.4 39.9 ± 10.5 47.1 ± 14.8 94.5 ± 6.4 2.95 ± 1.09 1.15 ± 0.06
MX3 108.5 ± 5.4 38.6 ± 10.1 45.9 ± 14.5 95.1 ± 6.4 3.05 ± 1.12 1.14 ± 0.06
RH8 109.2 ± 5.4 35.3 ± 9.1 42.6 ± 13.4 96.4 ± 6.4 3.35 ± 1.21 1.13 ± 0.06
RH9 111.4 ± 6.0 34.9 ± 9.0 42.2 ± 13.3 96.6 ± 6.4 3.45 ± 1.19 1.15 ± 0.06
RH10 0.9 ± 18.1 8.5 ± 2.1 11.0 ± 3.5 102.6 ± 7.3 -0.43 ± 2.68 0.00 ± 0.17
Average 95.9 33.7 40.3 96.4 2.8 1.0
Median 109.2 35.3 42.6 96.6 3.3 1.1
Deviation 38.4 10.7 12.2 2.9 1.3 0.4

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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