CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19952901303
Observation time: 10/17/1995 290.54429 1303 [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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Simple methods
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Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 1995
Fractional day of year 290.544288
Arrival time of shock [seconds of day] 47026.5 ± 6.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 173.893
Y GSE location of spacecraft [Re] -5.717
Z GSE location of spacecraft [Re] -13.880
Upstream plasma points selected for analysis 0003
Upstream field points selected for analysis 0257
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0249
Minimum chisq/dof for RH8,RH9,RH10 17.41, Infinity, -367.46
Event added to database
Mon Feb 14 11:01:33 2005
Event last processed
Mon Mar 30 15:56:20 2009
Method selected
RH08
Propagation delay to Earth [minutes]
52.123 ± 4.357

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -299.0 ± 3.1 -306.9 ± 3.1
Vy GSE [km/s] 19.7 ± 5.0 10.2 ± 7.0
Vz GSE [km/s] 2.2 ± 7.2 -13.5 ± 5.4
Wi [km/s] 26.5 ± 3.8 30.6 ± 4.1
We [km/s] 837.3 ± 119.2 966.5 ± 128.8
Ni [n/cc] 12.1 ± 0.9 15.6 ± 0.9
Bx GSE [nT] -4.0 ± 0.9 -5.2 ± 1.5
By GSE [nT] 2.0 ± 1.2 4.8 ± 1.5
Bz GSE [nT] -1.6 ± 1.5 -0.1 ± 1.2
Plasma Beta
0.710 ± 0.557
0.583 ± 0.561
Sound Speed [km/s]
34.18 ± 4.87
39.46 ± 5.26
Alfven Speed [km/s]
32.02 ± 1.76
40.33 ± 1.84

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.836 ± 0.192 0.261 ± 0.334 -0.482 ± 0.441 -28.81 ± 20.18 162.65 ± 22.58
VC -0.495 ± 0.347 -0.456 ± 0.356 -0.739 ± 0.560 -47.67 ± 22.74 222.63 ± 34.09
MX1 -0.821 ± 0.177 0.231 ± 0.267 -0.521 ± 0.468 -31.43 ± 18.36 164.31 ± 18.37
MX2 -0.800 ± 0.124 0.146 ± 0.196 -0.582 ± 0.505 -35.62 ± 11.85 169.63 ± 13.94
MX3 -0.757 ± 0.071 0.057 ± 0.192 -0.651 ± 0.538 -40.62 ± 6.11 175.66 ± 14.56
RH08 -0.977 ± 0.015 0.112 ± 0.070 -0.184 ± 0.182 -10.62 ± 4.00 173.48 ± 4.11
RH09 -0.000 ± 0.035 -0.000 ± 0.000 -1.000 ± 0.000 -90.00 ± 2.00 0.00 ± 2.00
RH10 -0.004 ± 0.070 -0.987 ± 0.011 -0.162 ± 0.161 -9.32 ± 4.03 269.75 ± 4.07
Average -0.586 -0.079 -0.540 -36.763 167.263
Median -0.757 0.112 -0.521 -31.427 173.482
Deviation 0.385 0.429 0.277 25.347 77.174

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 21.9 ± 8.9 296.1 ± 27.6 1.29 ± 0.04
VC 63.3 ± 2.2 224.6 ± 28.4 1.29 ± 0.04
MX1 23.6 ± 9.0 294.7 ± 27.8 1.29 ± 0.04
MX2 28.0 ± 8.0 298.0 ± 27.7 1.29 ± 0.04
MX3 33.4 ± 7.4 294.1 ± 27.7 1.29 ± 0.04
RH08 26.4 ± 14.1 339.6 ± 23.3 1.29 ± 0.04
RH09 70.9 ± 17.4 62.9 ± 31.4 1.29 ± 0.04
RH10 70.3 ± 10.8 34.4 ± 42.1 1.29 ± 0.04
Average 42.2 230.6 1.29
Median 33.4 294.7 1.29
Deviation 21.9 116.8 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 42.0 ± 2.3 25.7 ± 0.8 29.7 ± 1.6 39.3 ± 2.8 1.64 ± 0.14 1.08 ± 0.13
VC 87.1 ± 2.9 10.7 ± 0.4 14.4 ± 0.8 45.7 ± 2.7 8.18 ± 0.60 1.91 ± 0.17
MX1 45.7 ± 2.5 25.1 ± 0.8 29.3 ± 1.6 39.7 ± 2.8 1.82 ± 0.15 1.16 ± 0.14
MX2 57.4 ± 2.7 23.7 ± 0.8 28.3 ± 1.6 40.5 ± 2.8 2.42 ± 0.19 1.42 ± 0.16
MX3 68.2 ± 3.0 21.9 ± 0.8 26.7 ± 1.5 41.6 ± 2.7 3.12 ± 0.25 1.65 ± 0.18
RH8 45.8 ± 1.4 24.2 ± 0.8 28.7 ± 1.6 40.2 ± 2.8 1.89 ± 0.08 1.14 ± 0.07
RH9 65.1 ± 7.2 7.7 ± 0.3 10.5 ± 0.6 46.3 ± 2.7 8.53 ± 1.26 1.41 ± 0.24
RH10 52.9 ± 4.1 7.9 ± 0.3 10.8 ± 0.6 46.3 ± 2.7 6.66 ± 0.47 1.14 ± 0.07
Average 58.0 18.4 22.3 42.5 4.3 1.4
Median 57.4 23.7 28.3 41.6 3.1 1.4
Deviation 15.0 8.1 8.7 3.1 3.0 0.3

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 30.3 ± 5.4 31.2 ± 2.1 37.4 ± 1.7 47.1 ± 3.3 0.98 ± 0.23 0.65 ± 0.15
VC 67.3 ± 1.2 12.9 ± 0.9 18.1 ± 0.8 55.0 ± 3.8 5.22 ± 0.42 1.23 ± 0.10
MX1 33.2 ± 5.3 30.6 ± 2.1 37.0 ± 1.7 47.5 ± 3.3 1.10 ± 0.24 0.71 ± 0.15
MX2 43.3 ± 5.0 28.8 ± 2.0 35.6 ± 1.6 48.6 ± 3.4 1.51 ± 0.26 0.90 ± 0.15
MX3 52.5 ± 4.7 26.5 ± 1.8 33.7 ± 1.5 49.9 ± 3.5 1.99 ± 0.29 1.06 ± 0.15
RH8 36.2 ± 3.7 29.5 ± 2.0 36.1 ± 1.6 48.2 ± 3.4 1.24 ± 0.19 0.76 ± 0.11
RH9 49.4 ± 5.4 9.3 ± 0.6 13.2 ± 0.6 55.7 ± 3.9 5.36 ± 0.92 0.89 ± 0.15
RH10 40.9 ± 6.0 9.6 ± 0.7 13.6 ± 0.6 55.7 ± 3.9 4.24 ± 0.33 0.73 ± 0.06
Average 44.1 22.3 28.1 51.0 2.7 0.9
Median 43.3 28.8 35.6 49.9 2.0 0.9
Deviation 12.1 9.8 11.0 3.8 1.9 0.2

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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