CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19961680418
Observation time: 06/16/1996 168.17922 0418 [UT]

Wind spacecraft

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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 1996
Fractional day of year 168.179219
Arrival time of shock [seconds of day] 15484.5 ± 3.0
Shock type SR
Electron data availability 0
X GSE location of spacecraft [Re] 201.906
Y GSE location of spacecraft [Re] 17.520
Z GSE location of spacecraft [Re] -14.540
Upstream plasma points selected for analysis 0007
Upstream field points selected for analysis 0209
Downstream plasma points selected for analysis 0010
Downstream field points selected for analysis 0271
Minimum chisq/dof for RH8,RH9,RH10 10.82, 15.39, 16.26
Event added to database
Mon Feb 14 11:02:38 2005
Event last processed
Mon Mar 30 16:14:49 2009
Method selected
RH08
Propagation delay to Earth [minutes]
62.268 ± 2.288

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -369.4 ± 2.0 -417.2 ± 1.8
Vy GSE [km/s] 15.0 ± 1.5 0.9 ± 2.8
Vz GSE [km/s] -3.4 ± 2.5 -40.6 ± 2.6
Wi [km/s] 42.2 ± 0.6 40.1 ± 1.1
We [km/s] 1335.5 ± 20.0 1266.7 ± 35.0
Ni [n/cc] 12.1 ± 0.7 5.3 ± 0.2
Bx GSE [nT] 4.6 ± 0.6 7.9 ± 0.3
By GSE [nT] -3.2 ± 0.2 1.9 ± 0.6
Bz GSE [nT] 1.4 ± 0.8 6.0 ± 0.3
Plasma Beta
1.365 ± 1.415
0.176 ± 0.180
Sound Speed [km/s]
54.52 ± 0.82
51.71 ± 1.43
Alfven Speed [km/s]
36.63 ± 3.58
95.58 ± 1.86

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.742 ± 0.092 0.641 ± 0.106 -0.196 ± 0.194 -11.32 ± 5.97 139.19 ± 8.15
VC -0.769 ± 0.033 -0.228 ± 0.050 -0.598 ± 0.514 -36.70 ± 2.95 196.51 ± 3.70
MX1 -0.741 ± 0.093 0.642 ± 0.107 -0.198 ± 0.196 -11.44 ± 6.12 139.09 ± 8.17
MX2 -0.920 ± 0.223 0.363 ± 0.542 0.150 ± 0.149 8.63 ± 25.76 158.48 ± 33.73
MX3 -0.745 ± 0.091 0.640 ± 0.105 -0.190 ± 0.188 -10.95 ± 5.88 139.34 ± 8.02
RH08 -0.914 ± 0.005 0.343 ± 0.012 0.218 ± 0.214 12.58 ± 0.73 159.44 ± 0.76
RH09 -0.464 ± 0.060 -0.427 ± 0.062 0.777 ± 0.560 50.94 ± 3.19 222.62 ± 6.77
RH10 -0.464 ± 0.060 -0.427 ± 0.062 0.777 ± 0.560 50.94 ± 3.47 222.62 ± 6.64
Average -0.720 0.193 0.092 6.586 172.162
Median -0.742 0.363 0.150 8.627 159.443
Deviation 0.174 0.478 0.490 31.173 36.432

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 10.5 ± 2.0 257.7 ± 2.9 0.44 ± 0.04
VC 51.4 ± 3.6 234.1 ± 6.8 0.44 ± 0.04
MX1 10.5 ± 2.0 257.2 ± 2.9 0.44 ± 0.04
MX2 27.0 ± 8.7 318.6 ± 3.5 0.44 ± 0.04
MX3 10.5 ± 2.2 258.7 ± 2.9 0.44 ± 0.04
RH08 30.9 ± 8.9 317.7 ± 3.6 0.44 ± 0.04
RH09 86.2 ± 8.5 163.3 ± 3.9 0.44 ± 0.04
RH10 86.2 ± 8.5 163.3 ± 3.9 0.44 ± 0.04
Average 39.2 246.3 0.44
Median 30.9 257.7 0.44
Deviation 32.2 59.3 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -26.7 ± 1.9 35.5 ± 3.3 36.0 ± 3.5 55.3 ± 0.7 -0.76 ± 0.05 -0.48 ± 0.03
VC -48.5 ± 1.6 19.9 ± 1.4 22.9 ± 2.2 62.7 ± 1.5 -2.45 ± 0.20 -0.77 ± 0.03
MX1 -26.7 ± 1.9 35.5 ± 3.3 36.0 ± 3.5 55.3 ± 0.7 -0.76 ± 0.05 -0.48 ± 0.03
MX2 -26.1 ± 2.4 30.5 ± 2.5 32.6 ± 3.2 58.2 ± 0.9 -0.86 ± 0.05 -0.45 ± 0.03
MX3 -26.7 ± 1.9 35.5 ± 3.3 36.0 ± 3.5 55.3 ± 0.7 -0.75 ± 0.05 -0.48 ± 0.03
RH8 -24.2 ± 2.5 29.0 ± 2.3 31.4 ± 3.1 59.0 ± 1.0 -0.83 ± 0.05 -0.41 ± 0.04
RH9 1.1 ± 2.2 2.0 ± 0.1 2.4 ± 0.2 65.7 ± 1.8 0.59 ± 1.12 0.02 ± 0.03
RH10 1.1 ± 2.2 2.0 ± 0.1 2.4 ± 0.2 65.7 ± 1.8 0.59 ± 1.12 0.02 ± 0.03
Average -22.1 23.7 25.0 59.6 -0.7 -0.4
Median -26.1 30.5 32.6 59.0 -0.8 -0.4
Deviation 16.3 14.4 14.6 4.5 1.0 0.3

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -60.5 ± 2.3 50.5 ± 1.4 94.0 ± 1.8 96.2 ± 1.8 -1.20 ± 0.06 -0.63 ± 0.03
VC -110.7 ± 2.3 29.5 ± 0.6 59.7 ± 1.2 104.6 ± 1.3 -3.75 ± 0.11 -1.06 ± 0.03
MX1 -60.5 ± 2.3 50.5 ± 1.4 94.0 ± 1.8 96.2 ± 1.8 -1.20 ± 0.06 -0.63 ± 0.03
MX2 -59.3 ± 2.3 44.4 ± 1.1 85.2 ± 1.7 99.2 ± 1.6 -1.34 ± 0.07 -0.60 ± 0.03
MX3 -60.3 ± 2.3 50.5 ± 1.4 94.0 ± 1.8 96.2 ± 1.8 -1.20 ± 0.06 -0.63 ± 0.03
RH8 -54.9 ± 2.4 42.4 ± 1.0 82.1 ± 1.6 100.1 ± 1.5 -1.30 ± 0.07 -0.55 ± 0.03
RH9 1.8 ± 1.7 3.0 ± 0.1 6.3 ± 0.1 108.6 ± 1.2 0.61 ± 0.57 0.02 ± 0.02
RH10 1.8 ± 1.7 3.0 ± 0.1 6.3 ± 0.1 108.6 ± 1.2 0.61 ± 0.57 0.02 ± 0.02
Average -50.3 34.2 65.2 101.2 -1.1 -0.5
Median -59.3 44.4 85.2 100.1 -1.2 -0.6
Deviation 36.8 20.5 38.0 5.4 1.4 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 Fri Jun 13 11:06:02 2014
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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