CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19952290247
Observation time: 08/17/1995 229.11620 0247 [UT]

Wind spacecraft

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


General Information (About, Top)

Year 1995
Fractional day of year 229.116198
Arrival time of shock [seconds of day] 10039.5 ± 9.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 53.671
Y GSE location of spacecraft [Re] 18.518
Z GSE location of spacecraft [Re] -3.131
Upstream plasma points selected for analysis 0010
Upstream field points selected for analysis 0276
Downstream plasma points selected for analysis 0009
Downstream field points selected for analysis 0239
Minimum chisq/dof for RH8,RH9,RH10 10.96, 13.41, 13.60
Event added to database
Mon Feb 14 11:01:00 2005
Event last processed
Wed Mar 25 12:59:38 2009
Method selected
RH08
Propagation delay to Earth [minutes]
11.620 ± 0.176

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -400.2 ± 4.3 -439.6 ± 3.7
Vy GSE [km/s] -0.5 ± 1.1 8.7 ± 2.1
Vz GSE [km/s] 24.8 ± 2.9 14.6 ± 2.9
Wi [km/s] 26.3 ± 0.7 40.0 ± 1.2
We [km/s] 831.2 ± 20.7 1265.3 ± 39.4
Ni [n/cc] 2.5 ± 0.2 5.8 ± 0.4
Bx GSE [nT] 1.6 ± 0.1 2.5 ± 0.1
By GSE [nT] 0.8 ± 0.2 2.4 ± 0.3
Bz GSE [nT] 0.9 ± 0.3 0.4 ± 0.4
Plasma Beta
0.887 ± 0.945
1.622 ± 1.618
Sound Speed [km/s]
33.93 ± 0.85
51.65 ± 1.61
Alfven Speed [km/s]
28.02 ± 1.43
31.58 ± 1.68

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.680 ± 0.193 0.118 ± 0.195 -0.724 ± 0.558 -46.37 ± 15.29 170.17 ± 16.18
VC -0.945 ± 0.023 0.223 ± 0.058 -0.241 ± 0.236 -13.94 ± 4.51 166.73 ± 3.53
MX1 -0.861 ± 0.109 0.506 ± 0.185 -0.054 ± 0.054 -3.09 ± 13.91 149.54 ± 12.32
MX2 -0.870 ± 0.065 0.437 ± 0.125 -0.226 ± 0.222 -13.07 ± 4.93 153.32 ± 8.18
MX3 -0.864 ± 0.062 0.416 ± 0.118 -0.284 ± 0.276 -16.52 ± 5.50 154.31 ± 7.80
RH08 -0.989 ± 0.002 0.131 ± 0.009 -0.073 ± 0.072 -4.16 ± 0.71 172.48 ± 0.54
RH09 -0.990 ± 0.010 0.131 ± 0.068 -0.061 ± 0.061 -3.52 ± 4.03 172.48 ± 3.95
RH10 -0.990 ± 0.010 0.131 ± 0.068 -0.061 ± 0.061 -3.52 ± 4.03 172.48 ± 3.95
Average -0.898 0.261 -0.216 -13.024 163.938
Median -0.870 0.223 -0.073 -4.165 170.166
Deviation 0.106 0.164 0.226 14.553 9.842

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 34.8 ± 9.4 315.1 ± 5.8 2.41 ± 0.20
VC 41.3 ± 3.7 443.3 ± 5.1 2.41 ± 0.20
MX1 60.9 ± 3.8 410.4 ± 4.4 2.41 ± 0.20
MX2 53.0 ± 4.3 412.1 ± 4.9 2.41 ± 0.20
MX3 50.7 ± 4.6 408.1 ± 5.0 2.41 ± 0.20
RH08 41.9 ± 4.1 463.9 ± 4.8 2.41 ± 0.20
RH09 42.3 ± 4.2 464.3 ± 4.8 2.41 ± 0.20
RH10 42.3 ± 4.2 464.3 ± 4.8 2.41 ± 0.20
Average 45.9 422.7 2.41
Median 42.3 443.3 2.41
Deviation 8.3 50.2 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 61.0 ± 4.5 19.9 ± 0.6 23.0 ± 1.2 39.3 ± 0.8 3.07 ± 0.19 1.55 ± 0.10
VC 71.4 ± 4.5 17.7 ± 0.6 21.1 ± 1.1 40.3 ± 0.9 4.03 ± 0.21 1.77 ± 0.10
MX1 67.5 ± 3.9 10.8 ± 0.3 13.6 ± 0.7 42.7 ± 1.0 6.23 ± 0.29 1.58 ± 0.08
MX2 69.6 ± 4.2 13.7 ± 0.4 16.9 ± 0.9 41.8 ± 0.9 5.10 ± 0.25 1.66 ± 0.09
MX3 69.6 ± 4.3 14.5 ± 0.4 17.7 ± 0.9 41.6 ± 0.9 4.81 ± 0.24 1.67 ± 0.09
RH8 70.1 ± 4.4 17.5 ± 0.5 20.9 ± 1.1 40.4 ± 0.9 4.00 ± 0.21 1.74 ± 0.10
RH9 70.0 ± 4.4 17.4 ± 0.5 20.7 ± 1.1 40.4 ± 0.9 4.02 ± 0.21 1.73 ± 0.10
RH10 70.0 ± 4.4 17.4 ± 0.5 20.7 ± 1.1 40.4 ± 0.9 4.02 ± 0.21 1.73 ± 0.10
Average 68.6 16.1 19.3 40.9 4.4 1.7
Median 70.0 17.4 20.7 40.4 4.0 1.7
Deviation 3.3 2.9 3.0 1.1 1.0 0.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 25.7 ± 4.2 24.1 ± 1.0 25.9 ± 1.4 55.6 ± 1.3 1.07 ± 0.17 0.46 ± 0.08
VC 29.6 ± 4.1 21.7 ± 0.8 23.7 ± 1.3 56.6 ± 1.2 1.37 ± 0.18 0.52 ± 0.08
MX1 28.4 ± 3.6 13.4 ± 0.5 15.4 ± 0.8 59.1 ± 1.2 2.11 ± 0.26 0.48 ± 0.06
MX2 29.0 ± 3.9 16.9 ± 0.6 19.0 ± 1.0 58.2 ± 1.2 1.72 ± 0.22 0.50 ± 0.07
MX3 28.8 ± 4.0 17.8 ± 0.7 20.0 ± 1.1 57.9 ± 1.2 1.61 ± 0.21 0.50 ± 0.07
RH8 29.2 ± 3.8 21.4 ± 0.8 23.5 ± 1.2 56.7 ± 1.2 1.36 ± 0.17 0.52 ± 0.07
RH9 29.1 ± 3.8 21.3 ± 0.8 23.4 ± 1.2 56.7 ± 1.2 1.37 ± 0.17 0.51 ± 0.07
RH10 29.1 ± 3.8 21.3 ± 0.8 23.4 ± 1.2 56.7 ± 1.2 1.37 ± 0.17 0.51 ± 0.07
Average 28.6 19.7 21.8 57.2 1.5 0.5
Median 29.1 21.3 23.4 56.7 1.4 0.5
Deviation 1.2 3.4 3.4 1.1 0.3 0.0

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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