CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19961702235
Observation time: 06/18/1996 170.94161 2235 [UT]

Wind spacecraft

Site
Data tables
Selection
Normals
Parameters
Previous event
Next event
Yearly list
Main page
Help

General information
Asymptotic parameters
Shock front normals
Key parameters
Wave speed and Mach numbers
Survey
Selected
Simple methods
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 1996
Fractional day of year 170.941615
Arrival time of shock [seconds of day] 81355.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 205.180
Y GSE location of spacecraft [Re] 19.320
Z GSE location of spacecraft [Re] -14.390
Upstream plasma points selected for analysis 0012
Upstream field points selected for analysis 0319
Downstream plasma points selected for analysis 0008
Downstream field points selected for analysis 0206
Minimum chisq/dof for RH8,RH9,RH10 4.34, 6.03, 6.17
Event added to database
Mon Feb 14 11:02:42 2005
Event last processed
Mon Mar 30 16:16:51 2009
Method selected
RH08
Propagation delay to Earth [minutes]
43.930 ± 1.568

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -399.1 ± 4.9 -428.0 ± 3.4
Vy GSE [km/s] -22.9 ± 2.2 -25.6 ± 5.8
Vz GSE [km/s] -17.4 ± 1.5 -19.7 ± 3.4
Wi [km/s] 28.1 ± 1.4 35.6 ± 1.3
We [km/s] 889.2 ± 43.3 1124.2 ± 41.9
Ni [n/cc] 10.5 ± 0.5 15.8 ± 1.3
Bx GSE [nT] -2.2 ± 0.3 -0.2 ± 0.3
By GSE [nT] -6.8 ± 0.3 -10.5 ± 0.6
Bz GSE [nT] -1.9 ± 0.3 -2.6 ± 1.6
Plasma Beta
0.318 ± 0.321
0.352 ± 0.362
Sound Speed [km/s]
36.30 ± 1.77
45.90 ± 1.71
Alfven Speed [km/s]
49.96 ± 2.19
60.32 ± 4.11

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.830 ± 0.107 -0.536 ± 0.159 -0.157 ± 0.155 -9.02 ± 15.17 212.85 ± 10.87
VC -0.991 ± 0.028 -0.112 ± 0.233 -0.073 ± 0.073 -4.21 ± 6.80 186.46 ± 13.50
MX1 -0.893 ± 0.053 -0.426 ± 0.106 -0.146 ± 0.145 -8.37 ± 7.49 205.53 ± 6.78
MX2 -0.900 ± 0.055 -0.407 ± 0.115 -0.155 ± 0.154 -8.93 ± 8.17 204.30 ± 7.27
MX3 -0.911 ± 0.067 -0.376 ± 0.143 -0.171 ± 0.169 -9.83 ± 11.46 202.45 ± 8.97
RH08 -0.922 ± 0.007 -0.383 ± 0.018 -0.050 ± 0.050 -2.88 ± 1.00 202.56 ± 1.09
RH09 -0.902 ± 0.030 -0.431 ± 0.062 -0.028 ± 0.028 -1.60 ± 4.06 205.57 ± 3.91
RH10 -0.902 ± 0.030 -0.431 ± 0.062 -0.028 ± 0.028 -1.60 ± 4.06 205.57 ± 3.91
Average -0.906 -0.388 -0.101 -5.805 203.162
Median -0.902 -0.407 -0.073 -4.211 205.535
Deviation 0.044 0.122 0.062 3.572 7.487

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 38.5 ± 3.0 424.5 ± 12.7 1.51 ± 0.15
VC 65.0 ± 3.1 486.9 ± 22.0 1.51 ± 0.15
MX1 45.7 ± 3.0 450.3 ± 15.4 1.51 ± 0.15
MX2 46.7 ± 3.1 453.4 ± 15.8 1.51 ± 0.15
MX3 48.3 ± 3.1 458.1 ± 16.5 1.51 ± 0.15
RH08 49.9 ± 3.0 460.8 ± 16.3 1.51 ± 0.15
RH09 47.4 ± 3.0 451.9 ± 15.1 1.51 ± 0.15
RH10 47.4 ± 3.0 451.9 ± 15.1 1.51 ± 0.15
Average 48.6 454.7 1.51
Median 47.4 453.4 1.51
Deviation 7.5 17.0 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 78.4 ± 3.5 25.2 ± 1.1 39.1 ± 1.7 56.4 ± 2.3 3.12 ± 0.23 1.39 ± 0.09
VC 87.5 ± 4.8 12.7 ± 0.5 21.1 ± 0.9 60.5 ± 2.4 6.94 ± 0.59 1.45 ± 0.11
MX1 81.7 ± 3.9 21.9 ± 0.9 34.9 ± 1.5 57.7 ± 2.3 3.73 ± 0.29 1.42 ± 0.10
MX2 82.0 ± 4.0 21.4 ± 0.9 34.2 ± 1.5 57.9 ± 2.3 3.84 ± 0.30 1.42 ± 0.10
MX3 83.0 ± 4.1 20.7 ± 0.9 33.2 ± 1.5 58.2 ± 2.3 4.02 ± 0.32 1.43 ± 0.10
RH8 83.0 ± 4.0 20.0 ± 0.8 32.2 ± 1.4 58.5 ± 2.3 4.17 ± 0.33 1.42 ± 0.10
RH9 81.7 ± 3.9 21.1 ± 0.9 33.8 ± 1.5 58.0 ± 2.3 3.88 ± 0.30 1.41 ± 0.10
RH10 81.7 ± 3.9 21.1 ± 0.9 33.8 ± 1.5 58.0 ± 2.3 3.88 ± 0.30 1.41 ± 0.10
Average 82.4 20.5 32.8 58.2 4.2 1.4
Median 82.0 21.1 33.8 58.0 3.9 1.4
Deviation 2.5 3.5 5.2 1.1 1.1 0.0

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 52.7 ± 2.7 31.4 ± 1.0 47.2 ± 3.2 69.1 ± 3.4 1.68 ± 0.08 0.76 ± 0.03
VC 58.5 ± 3.1 15.7 ± 0.5 25.5 ± 1.7 74.2 ± 3.4 3.72 ± 0.25 0.79 ± 0.06
MX1 54.5 ± 2.6 27.3 ± 0.9 42.2 ± 2.9 70.8 ± 3.4 2.00 ± 0.10 0.77 ± 0.04
MX2 54.6 ± 2.6 26.7 ± 0.9 41.3 ± 2.8 71.0 ± 3.4 2.05 ± 0.10 0.77 ± 0.04
MX3 55.4 ± 2.6 25.8 ± 0.8 40.1 ± 2.7 71.3 ± 3.4 2.15 ± 0.11 0.78 ± 0.04
RH8 55.3 ± 2.5 24.9 ± 0.8 38.8 ± 2.6 71.7 ± 3.4 2.22 ± 0.11 0.77 ± 0.04
RH9 54.5 ± 2.5 26.3 ± 0.9 40.8 ± 2.8 71.1 ± 3.4 2.07 ± 0.10 0.77 ± 0.04
RH10 54.5 ± 2.5 26.3 ± 0.9 40.8 ± 2.8 71.1 ± 3.4 2.07 ± 0.10 0.77 ± 0.04
Average 55.0 25.5 39.6 71.3 2.2 0.8
Median 54.6 26.3 40.8 71.1 2.1 0.8
Deviation 1.6 4.4 6.2 1.4 0.6 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)

   
 

Section Photo