CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19952952120
Observation time: 10/22/1995 295.88908 2120 [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 295.889080
Arrival time of shock [seconds of day] 76816.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 177.690
Y GSE location of spacecraft [Re] 2.807
Z GSE location of spacecraft [Re] -10.843
Upstream plasma points selected for analysis 0011
Upstream field points selected for analysis 0320
Downstream plasma points selected for analysis 0010
Downstream field points selected for analysis 0293
Minimum chisq/dof for RH8,RH9,RH10 9.61, 11.37, 11.51
Event added to database
Mon Feb 14 11:01:40 2005
Event last processed
Mon Mar 30 16:00:09 2009
Method selected
RH08
Propagation delay to Earth [minutes]
35.370 ± 8.518

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -402.1 ± 3.6 -413.0 ± 4.2
Vy GSE [km/s] -8.8 ± 1.6 13.8 ± 8.1
Vz GSE [km/s] -2.5 ± 3.5 44.9 ± 6.2
Wi [km/s] 29.7 ± 1.7 35.4 ± 3.8
We [km/s] 938.2 ± 52.9 1118.4 ± 121.7
Ni [n/cc] 5.4 ± 0.3 9.4 ± 0.9
Bx GSE [nT] 0.3 ± 0.7 -0.3 ± 1.2
By GSE [nT] 4.4 ± 0.1 6.6 ± 0.6
Bz GSE [nT] 0.3 ± 0.6 -2.3 ± 1.0
Plasma Beta
0.502 ± 0.503
0.506 ± 0.515
Sound Speed [km/s]
38.30 ± 2.16
45.66 ± 4.97
Alfven Speed [km/s]
42.14 ± 2.05
50.88 ± 3.59

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.920 ± 0.448 0.345 ± 1.165 0.186 ± 0.183 10.70 ± 32.78 159.43 ± 72.49
VC -0.226 ± 0.128 0.428 ± 0.115 0.875 ± 0.516 61.08 ± 7.18 117.83 ± 15.65
MX1 -0.325 ± 0.541 0.723 ± 0.300 0.609 ± 0.520 37.55 ± 18.64 114.18 ± 42.33
MX2 -0.237 ± 0.141 0.703 ± 0.138 0.670 ± 0.545 42.08 ± 11.72 108.63 ± 10.95
MX3 -0.303 ± 0.121 0.662 ± 0.128 0.686 ± 0.550 43.29 ± 10.86 114.62 ± 9.42
RH08 -0.557 ± 0.014 0.413 ± 0.016 0.721 ± 0.558 46.11 ± 0.81 143.40 ± 1.51
RH09 -0.972 ± 0.017 0.198 ± 0.069 0.128 ± 0.128 7.38 ± 4.01 168.47 ± 4.07
RH10 -0.976 ± 0.015 0.181 ± 0.069 0.117 ± 0.117 6.74 ± 4.01 169.47 ± 4.07
Average -0.564 0.457 0.499 31.866 137.003
Median -0.325 0.428 0.670 42.076 143.398
Deviation 0.340 0.218 0.304 20.711 26.139

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 73.4 ± 7.9 428.7 ± 9.2 1.75 ± 0.13
VC 62.7 ± 6.3 210.7 ± 16.7 1.75 ± 0.13
MX1 43.5 ± 5.9 235.6 ± 19.3 1.75 ± 0.13
MX2 44.2 ± 6.1 204.9 ± 19.8 1.75 ± 0.13
MX3 47.8 ± 6.0 232.7 ± 18.8 1.75 ± 0.13
RH08 65.7 ± 5.8 333.0 ± 14.1 1.75 ± 0.13
RH09 82.3 ± 8.2 438.0 ± 9.1 1.75 ± 0.13
RH10 83.3 ± 8.2 438.0 ± 9.1 1.75 ± 0.13
Average 62.9 315.2 1.75
Median 65.7 333.0 1.75
Deviation 16.3 106.6 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 62.3 ± 3.2 8.2 ± 0.3 12.1 ± 0.6 56.4 ± 1.7 7.62 ± 0.49 1.11 ± 0.07
VC 126.0 ± 3.1 13.4 ± 0.4 19.3 ± 0.9 55.4 ± 1.7 9.44 ± 0.45 2.28 ± 0.11
MX1 113.0 ± 2.4 22.3 ± 0.7 30.6 ± 1.5 52.4 ± 1.6 5.07 ± 0.23 2.16 ± 0.09
MX2 117.4 ± 2.5 22.0 ± 0.7 30.2 ± 1.5 52.6 ± 1.6 5.36 ± 0.24 2.24 ± 0.09
MX3 118.4 ± 2.6 20.3 ± 0.7 28.3 ± 1.4 53.2 ± 1.6 5.83 ± 0.26 2.23 ± 0.10
RH8 114.6 ± 3.0 11.9 ± 0.4 17.3 ± 0.8 55.7 ± 1.7 9.65 ± 0.47 2.06 ± 0.10
RH9 49.4 ± 3.4 3.8 ± 0.1 5.7 ± 0.3 56.9 ± 1.8 13.00 ± 1.03 0.87 ± 0.07
RH10 47.3 ± 3.4 3.3 ± 0.1 4.9 ± 0.2 56.9 ± 1.8 14.34 ± 1.19 0.83 ± 0.07
Average 93.5 13.1 18.5 54.9 8.8 1.7
Median 114.6 13.4 19.3 55.7 9.4 2.2
Deviation 34.1 7.8 10.5 1.9 3.5 0.7

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 35.6 ± 2.4 9.7 ± 0.4 14.6 ± 1.0 67.9 ± 2.0 3.66 ± 0.21 0.52 ± 0.03
VC 72.3 ± 5.6 15.9 ± 0.7 23.4 ± 1.6 66.7 ± 2.0 4.56 ± 0.45 1.08 ± 0.10
MX1 64.2 ± 5.5 26.5 ± 1.2 36.9 ± 2.6 63.3 ± 1.8 2.43 ± 0.28 1.02 ± 0.10
MX2 67.1 ± 5.8 26.1 ± 1.2 36.5 ± 2.6 63.4 ± 1.8 2.58 ± 0.30 1.06 ± 0.11
MX3 67.6 ± 5.5 24.2 ± 1.1 34.2 ± 2.4 64.2 ± 1.8 2.81 ± 0.30 1.05 ± 0.10
RH8 65.0 ± 4.5 14.2 ± 0.6 20.9 ± 1.5 67.1 ± 2.0 4.60 ± 0.39 0.97 ± 0.07
RH9 28.1 ± 3.0 4.5 ± 0.2 6.8 ± 0.5 68.4 ± 2.1 6.21 ± 0.52 0.41 ± 0.04
RH10 26.9 ± 3.1 3.9 ± 0.2 5.9 ± 0.4 68.5 ± 2.1 6.84 ± 0.62 0.39 ± 0.04
Average 53.4 15.6 22.4 66.2 4.2 0.8
Median 65.0 15.9 23.4 67.1 4.6 1.0
Deviation 19.5 9.2 12.7 2.2 1.7 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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