CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19952362211
Observation time: 08/24/1995 236.92436 2211 [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
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 1995
Fractional day of year 236.924358
Arrival time of shock [seconds of day] 79864.5 ± 6.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 63.490
Y GSE location of spacecraft [Re] -32.633
Z GSE location of spacecraft [Re] -4.659
Upstream plasma points selected for analysis 0007
Upstream field points selected for analysis 0222
Downstream plasma points selected for analysis 0006
Downstream field points selected for analysis 0196
Minimum chisq/dof for RH8,RH9,RH10 11.11, 17.12, 17.82
Event added to database
Mon Feb 14 11:01:12 2005
Event last processed
Wed Mar 25 13:03:17 2009
Method selected
RH08
Propagation delay to Earth [minutes]
16.100 ± 1.228

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -317.4 ± 0.9 -341.8 ± 1.1
Vy GSE [km/s] -0.3 ± 2.2 -3.5 ± 1.4
Vz GSE [km/s] 4.6 ± 2.4 -12.2 ± 1.6
Wi [km/s] 18.6 ± 0.2 22.5 ± 1.1
We [km/s] 588.8 ± 6.3 711.8 ± 35.9
Ni [n/cc] 20.4 ± 0.8 31.6 ± 2.4
Bx GSE [nT] -2.1 ± 0.2 -2.7 ± 0.4
By GSE [nT] -5.9 ± 0.4 -10.1 ± 0.9
Bz GSE [nT] 2.1 ± 0.9 3.8 ± 0.7
Plasma Beta
0.337 ± 0.338
0.275 ± 0.282
Sound Speed [km/s]
24.04 ± 0.26
29.06 ± 1.47
Alfven Speed [km/s]
32.14 ± 1.30
43.53 ± 3.34

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.940 ± 0.210 -0.327 ± 0.566 -0.096 ± 0.095 -5.49 ± 45.35 199.20 ± 34.49
VC -0.821 ± 0.047 -0.109 ± 0.082 -0.561 ± 0.493 -34.10 ± 4.71 187.56 ± 5.71
MX1 -0.812 ± 0.077 -0.106 ± 0.085 -0.573 ± 0.500 -34.99 ± 7.65 187.43 ± 5.96
MX2 -0.824 ± 0.069 -0.098 ± 0.078 -0.558 ± 0.491 -33.92 ± 7.03 186.76 ± 5.41
MX3 -0.837 ± 0.062 -0.088 ± 0.076 -0.539 ± 0.480 -32.64 ± 6.53 186.01 ± 5.18
RH08 -0.972 ± 0.004 -0.043 ± 0.018 -0.229 ± 0.225 -13.24 ± 0.95 182.51 ± 1.04
RH09 -0.985 ± 0.012 0.148 ± 0.069 0.084 ± 0.084 4.81 ± 4.02 171.48 ± 3.99
RH10 -0.990 ± 0.010 0.131 ± 0.068 0.061 ± 0.061 3.52 ± 4.03 172.48 ± 3.95
Average -0.898 -0.062 -0.301 -18.256 184.176
Median -0.837 -0.088 -0.229 -13.241 186.758
Deviation 0.081 0.150 0.291 17.637 8.932

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 55.7 ± 1.9 372.8 ± 12.6 1.54 ± 0.09
VC 79.2 ± 4.1 343.6 ± 14.6 1.54 ± 0.09
MX1 79.7 ± 4.2 340.8 ± 14.6 1.54 ± 0.09
MX2 79.7 ± 4.1 344.5 ± 14.5 1.54 ± 0.09
MX3 79.6 ± 3.9 348.8 ± 14.5 1.54 ± 0.09
RH08 73.7 ± 1.8 387.7 ± 13.0 1.54 ± 0.09
RH09 77.6 ± 2.9 376.6 ± 10.2 1.54 ± 0.09
RH10 77.0 ± 2.7 379.4 ± 10.4 1.54 ± 0.09
Average 75.3 361.8 1.54
Median 79.2 372.8 1.54
Deviation 8.2 19.1 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 74.8 ± 0.8 11.3 ± 0.1 18.1 ± 0.7 38.5 ± 1.0 6.62 ± 0.12 1.94 ± 0.06
VC 85.6 ± 1.5 3.6 ± 0.1 6.0 ± 0.2 40.0 ± 1.0 23.64 ± 0.53 2.14 ± 0.07
MX1 85.6 ± 1.5 3.4 ± 0.0 5.7 ± 0.2 40.0 ± 1.0 24.89 ± 0.57 2.14 ± 0.07
MX2 85.6 ± 1.5 3.5 ± 0.0 5.8 ± 0.2 40.0 ± 1.0 24.72 ± 0.55 2.14 ± 0.07
MX3 85.5 ± 1.4 3.5 ± 0.0 5.8 ± 0.2 40.0 ± 1.0 24.46 ± 0.53 2.14 ± 0.07
RH8 80.1 ± 0.9 5.5 ± 0.1 9.0 ± 0.4 39.8 ± 1.0 14.68 ± 0.25 2.01 ± 0.05
RH9 63.5 ± 1.2 4.2 ± 0.1 6.9 ± 0.3 39.9 ± 1.0 15.28 ± 0.32 1.59 ± 0.04
RH10 65.1 ± 1.1 4.3 ± 0.1 7.2 ± 0.3 39.9 ± 1.0 14.99 ± 0.30 1.63 ± 0.04
Average 78.2 4.9 8.1 39.8 18.7 2.0
Median 85.5 4.2 6.9 40.0 23.6 2.1
Deviation 9.4 2.7 4.2 0.5 6.8 0.2

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 49.2 ± 1.2 14.1 ± 0.4 24.5 ± 1.9 50.5 ± 2.3 3.49 ± 0.12 0.98 ± 0.07
VC 55.8 ± 1.1 4.5 ± 0.1 8.2 ± 0.6 52.2 ± 2.2 12.32 ± 0.49 1.07 ± 0.06
MX1 55.7 ± 1.1 4.3 ± 0.1 7.8 ± 0.6 52.2 ± 2.2 12.97 ± 0.52 1.07 ± 0.06
MX2 55.7 ± 1.1 4.3 ± 0.1 7.8 ± 0.6 52.2 ± 2.2 12.88 ± 0.51 1.07 ± 0.06
MX3 55.7 ± 1.0 4.4 ± 0.1 7.9 ± 0.6 52.2 ± 2.2 12.74 ± 0.50 1.07 ± 0.06
RH8 52.3 ± 1.0 6.8 ± 0.2 12.2 ± 0.9 52.0 ± 2.3 7.68 ± 0.26 1.01 ± 0.06
RH9 41.3 ± 1.1 5.2 ± 0.1 9.4 ± 0.7 52.1 ± 2.2 7.95 ± 0.24 0.79 ± 0.05
RH10 42.4 ± 1.1 5.4 ± 0.1 9.8 ± 0.7 52.1 ± 2.2 7.81 ± 0.23 0.81 ± 0.05
Average 51.0 6.1 10.9 51.9 9.7 1.0
Median 55.7 5.2 9.4 52.2 12.3 1.1
Deviation 6.1 3.3 5.7 0.6 3.5 0.1

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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