CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19950081653
Observation time: 01/08/1995 8.70352 1653 [UT]

Wind spacecraft

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Asymptotic parameters
Shock front normals
Key parameters
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 8.703524
Arrival time of shock [seconds of day] 60784.5 ± 60.0
Shock type NN
Electron data availability 0
X GSE location of spacecraft [Re] 123.139
Y GSE location of spacecraft [Re] -76.180
Z GSE location of spacecraft [Re] -9.400
Upstream plasma points selected for analysis 0008
Upstream field points selected for analysis 0221
Downstream plasma points selected for analysis 0008
Downstream field points selected for analysis 0212
Minimum chisq/dof for RH8,RH9,RH10 8.35, 11.21, 12.71
Event added to database
Mon Feb 14 10:59:47 2005
Event last processed
Mon Mar 14 15:50:17 2005
Method selected
RH08
Propagation delay to Earth [minutes]
-181.912 ± 50.711

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -523.1 ± 2.4 -500.9 ± 1.2
Vy GSE [km/s] -15.7 ± 1.1 -28.0 ± 1.6
Vz GSE [km/s] -12.0 ± 3.9 -9.9 ± 1.4
Wi [km/s] 35.7 ± 1.5 41.6 ± 0.5
We [km/s] 1130.1 ± 45.9 1317.0 ± 17.1
Ni [n/cc] 2.4 ± 0.2 3.9 ± 0.1
Bx GSE [nT] 3.8 ± 0.1 1.4 ± 0.3
By GSE [nT] -2.3 ± 0.2 -1.5 ± 0.3
Bz GSE [nT] 0.6 ± 0.2 0.0 ± 0.1
Plasma Beta
0.322 ± 0.325
3.475 ± 3.319
Sound Speed [km/s]
46.14 ± 1.87
53.77 ± 0.70
Alfven Speed [km/s]
63.29 ± 4.39
22.54 ± 1.61

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.411 ± 0.609 -0.901 ± 0.286 -0.135 ± 0.135 -7.78 ± 32.37 245.48 ± 38.68
VC -0.870 ± 0.043 0.486 ± 0.075 -0.083 ± 0.083 -4.78 ± 8.66 150.82 ± 4.93
MX1 -0.628 ± 0.543 -0.614 ± 0.549 0.478 ± 0.438 28.56 ± 48.11 224.38 ± 43.03
MX2 -0.294 ± 0.251 -0.936 ± 0.123 -0.195 ± 0.193 -11.25 ± 29.22 252.57 ± 15.25
MX3 -0.671 ± 0.638 -0.661 ± 0.646 0.335 ± 0.322 19.59 ± 42.45 224.58 ± 53.07
RH08 0.032 ± 0.028 -0.479 ± 0.038 -0.877 ± 0.514 -61.29 ± 2.48 273.76 ± 3.35
RH09 0.030 ± 0.052 -0.458 ± 0.062 -0.888 ± 0.502 -62.66 ± 4.00 273.76 ± 6.49
RH10 0.032 ± 0.058 -0.479 ± 0.063 -0.877 ± 0.514 -61.29 ± 4.09 273.76 ± 6.93
Average -0.348 -0.505 -0.280 -20.114 239.890
Median -0.294 -0.479 -0.135 -7.780 252.568
Deviation 0.357 0.441 0.548 37.057 41.476

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 84.7 ± 2.0 235.3 ± 4.6 1.64 ± 0.15
VC 3.8 ± 3.0 385.7 ± 11.3 1.64 ± 0.15
MX1 80.7 ± 3.6 318.5 ± 4.8 1.64 ± 0.15
MX2 78.4 ± 1.7 182.5 ± 4.7 1.64 ± 0.15
MX3 78.9 ± 3.3 341.8 ± 4.9 1.64 ± 0.15
RH08 80.8 ± 1.9 13.8 ± 5.1 1.64 ± 0.15
RH09 81.6 ± 1.9 13.5 ± 5.2 1.64 ± 0.15
RH10 80.8 ± 1.9 13.8 ± 5.1 1.64 ± 0.15
Average 71.2 188.1 1.64
Median 80.8 235.3 1.64
Deviation 27.3 157.3 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 4.5 ± 1.2 3.4 ± 0.1 5.8 ± 0.4 78.3 ± 4.2 1.32 ± 0.33 0.06 ± 0.01
VC -62.8 ± 2.0 45.9 ± 1.9 63.2 ± 4.4 63.5 ± 4.4 -1.37 ± 0.07 -1.00 ± 0.09
MX1 -13.7 ± 3.2 6.0 ± 0.3 10.2 ± 0.7 78.1 ± 4.2 -2.29 ± 0.50 -0.18 ± 0.04
MX2 11.8 ± 1.0 7.5 ± 0.3 12.7 ± 0.9 78.0 ± 4.1 1.57 ± 0.13 0.15 ± 0.01
MX3 -15.5 ± 2.8 7.2 ± 0.3 12.1 ± 0.8 78.0 ± 4.1 -2.16 ± 0.37 -0.20 ± 0.03
RH8 12.3 ± 3.2 5.9 ± 0.3 10.1 ± 0.7 78.1 ± 4.2 2.07 ± 0.49 0.16 ± 0.04
RH9 11.4 ± 3.3 5.4 ± 0.2 9.2 ± 0.6 78.2 ± 4.2 2.09 ± 0.55 0.15 ± 0.04
RH10 12.3 ± 3.2 5.9 ± 0.3 10.1 ± 0.7 78.1 ± 4.2 2.07 ± 0.49 0.16 ± 0.04
Average -5.0 10.9 16.7 76.3 0.4 -0.1
Median 11.4 6.0 10.2 78.1 1.6 0.1
Deviation 26.1 14.2 18.9 5.2 2.0 0.4

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 2.8 ± 1.8 1.9 ± 0.1 2.1 ± 0.1 58.3 ± 0.5 1.50 ± 0.98 0.05 ± 0.03
VC -37.4 ± 1.2 22.5 ± 1.6 22.5 ± 1.6 53.8 ± 0.7 -1.67 ± 0.16 -0.70 ± 0.02
MX1 -8.4 ± 1.2 3.3 ± 0.2 3.6 ± 0.3 58.2 ± 0.5 -2.50 ± 0.32 -0.14 ± 0.02
MX2 7.2 ± 1.8 4.2 ± 0.3 4.5 ± 0.3 58.2 ± 0.5 1.74 ± 0.49 0.12 ± 0.03
MX3 -9.5 ± 1.4 4.0 ± 0.2 4.3 ± 0.3 58.2 ± 0.5 -2.37 ± 0.30 -0.16 ± 0.02
RH8 7.5 ± 1.5 3.3 ± 0.2 3.6 ± 0.3 58.2 ± 0.5 2.29 ± 0.50 0.13 ± 0.03
RH9 6.9 ± 1.5 3.0 ± 0.2 3.3 ± 0.2 58.2 ± 0.5 2.31 ± 0.53 0.12 ± 0.03
RH10 7.5 ± 1.5 3.3 ± 0.2 3.6 ± 0.3 58.2 ± 0.5 2.29 ± 0.50 0.13 ± 0.03
Average -2.9 5.7 5.9 57.7 0.4 -0.1
Median 6.9 3.3 3.6 58.2 1.7 0.1
Deviation 15.6 6.8 6.7 1.6 2.2 0.3

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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