CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19971001258
Observation time: 04/10/1997 100.54068 1258 [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 1997
Fractional day of year 100.540677
Arrival time of shock [seconds of day] 46714.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 230.000
Y GSE location of spacecraft [Re] 8.140
Z GSE location of spacecraft [Re] 21.219
Upstream plasma points selected for analysis 0008
Upstream field points selected for analysis 0244
Downstream plasma points selected for analysis 0007
Downstream field points selected for analysis 0227
Minimum chisq/dof for RH8,RH9,RH10 22.05, 26.81, 27.71
Event added to database
Mon Feb 14 11:04:21 2005
Event last processed
Mon Mar 30 16:48:31 2009
Method selected
RH08
Propagation delay to Earth [minutes]
62.543 ± 4.213

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -306.6 ± 1.0 -325.5 ± 1.4
Vy GSE [km/s] -10.5 ± 0.8 -3.2 ± 2.3
Vz GSE [km/s] 4.3 ± 1.9 30.0 ± 2.3
Wi [km/s] 27.0 ± 0.6 30.8 ± 0.5
We [km/s] 852.3 ± 20.1 973.8 ± 16.8
Ni [n/cc] 15.0 ± 0.4 22.4 ± 0.6
Bx GSE [nT] 6.0 ± 0.4 8.6 ± 0.5
By GSE [nT] -2.2 ± 0.6 0.8 ± 0.8
Bz GSE [nT] 5.6 ± 0.2 7.6 ± 0.3
Plasma Beta
0.319 ± 0.334
0.337 ± 0.326
Sound Speed [km/s]
34.80 ± 0.82
39.76 ± 0.69
Alfven Speed [km/s]
48.09 ± 3.12
53.15 ± 2.06

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.563 ± 0.347 0.687 ± 0.292 -0.460 ± 0.424 -27.36 ± 14.54 129.31 ± 28.28
VC -0.581 ± 0.050 0.224 ± 0.068 0.782 ± 0.560 51.47 ± 3.34 158.88 ± 6.53
MX1 -0.809 ± 0.143 0.308 ± 0.090 0.501 ± 0.454 30.08 ± 17.21 159.12 ± 5.11
MX2 -0.749 ± 0.103 0.209 ± 0.069 0.629 ± 0.529 38.98 ± 9.61 164.43 ± 4.84
MX3 -0.686 ± 0.068 0.111 ± 0.104 0.719 ± 0.558 46.01 ± 5.34 170.80 ± 8.66
RH08 -0.972 ± 0.002 -0.060 ± 0.013 0.229 ± 0.225 13.24 ± 0.49 183.51 ± 0.75
RH09 -0.987 ± 0.010 -0.061 ± 0.067 0.151 ± 0.150 8.68 ± 3.30 183.51 ± 3.87
RH10 -0.987 ± 0.010 -0.061 ± 0.068 0.151 ± 0.150 8.68 ± 3.53 183.51 ± 3.94
Average -0.791 0.170 0.338 21.222 166.634
Median -0.749 0.209 0.501 30.078 170.799
Deviation 0.177 0.255 0.409 25.807 18.462

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 28.7 ± 3.4 174.6 ± 5.2 1.49 ± 0.06
VC 87.5 ± 2.7 275.8 ± 11.0 1.49 ± 0.06
MX1 71.1 ± 2.7 336.8 ± 9.1 1.49 ± 0.06
MX2 80.1 ± 2.5 324.7 ± 9.8 1.49 ± 0.06
MX3 87.6 ± 2.3 308.4 ± 10.3 1.49 ± 0.06
RH08 58.5 ± 1.5 371.4 ± 5.7 1.49 ± 0.06
RH09 54.3 ± 1.5 370.3 ± 5.0 1.49 ± 0.06
RH10 54.3 ± 1.5 370.3 ± 5.0 1.49 ± 0.06
Average 65.3 316.5 1.49
Median 71.1 336.8 1.49
Deviation 20.3 66.7 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 11.2 ± 1.4 28.0 ± 0.3 42.2 ± 2.7 52.4 ± 2.4 0.40 ± 0.05 0.21 ± 0.02
VC 96.7 ± 1.1 1.2 ± 0.0 2.1 ± 0.1 59.4 ± 2.1 78.55 ± 1.60 1.63 ± 0.07
MX1 90.0 ± 0.7 9.2 ± 0.1 15.6 ± 1.0 58.7 ± 2.2 9.77 ± 0.14 1.54 ± 0.06
MX2 94.6 ± 0.8 4.8 ± 0.1 8.2 ± 0.5 59.2 ± 2.1 19.55 ± 0.33 1.60 ± 0.06
MX3 96.3 ± 0.9 1.2 ± 0.0 2.0 ± 0.1 59.4 ± 2.1 80.94 ± 1.49 1.62 ± 0.07
RH8 71.8 ± 0.7 15.2 ± 0.2 25.1 ± 1.6 57.4 ± 2.2 4.73 ± 0.05 1.25 ± 0.04
RH9 66.5 ± 0.8 17.2 ± 0.2 28.1 ± 1.8 56.9 ± 2.2 3.88 ± 0.05 1.17 ± 0.04
RH10 66.5 ± 0.8 17.2 ± 0.2 28.1 ± 1.8 56.9 ± 2.2 3.88 ± 0.05 1.17 ± 0.04
Average 74.2 11.7 18.9 57.5 25.2 1.3
Median 90.0 15.2 25.1 58.7 9.8 1.5
Deviation 28.6 9.3 14.3 2.3 34.2 0.5

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 7.4 ± 1.5 31.8 ± 0.4 46.6 ± 1.8 58.3 ± 1.6 0.23 ± 0.05 0.13 ± 0.03
VC 63.9 ± 2.4 1.4 ± 0.0 2.3 ± 0.1 66.4 ± 1.5 45.94 ± 1.83 0.96 ± 0.04
MX1 59.6 ± 2.1 10.4 ± 0.1 17.2 ± 0.7 65.6 ± 1.5 5.72 ± 0.21 0.91 ± 0.03
MX2 62.8 ± 2.3 5.5 ± 0.1 9.1 ± 0.4 66.2 ± 1.5 11.47 ± 0.44 0.95 ± 0.03
MX3 64.0 ± 2.4 1.3 ± 0.0 2.2 ± 0.1 66.4 ± 1.5 47.60 ± 1.89 0.97 ± 0.04
RH8 48.0 ± 1.8 17.2 ± 0.2 27.7 ± 1.1 64.1 ± 1.5 2.79 ± 0.11 0.75 ± 0.03
RH9 44.4 ± 1.7 19.4 ± 0.3 31.0 ± 1.2 63.5 ± 1.5 2.29 ± 0.09 0.70 ± 0.02
RH10 44.4 ± 1.7 19.4 ± 0.3 31.0 ± 1.2 63.5 ± 1.5 2.29 ± 0.09 0.70 ± 0.02
Average 49.3 13.3 20.9 64.2 14.8 0.8
Median 59.6 17.2 27.7 65.6 5.7 0.9
Deviation 19.0 10.6 15.9 2.7 20.0 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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