CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19973640113
Observation time: 12/30/1997 364.05120 0113 [UT]

Wind spacecraft

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Asymptotic parameters
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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 364.051198
Arrival time of shock [seconds of day] 4423.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 223.812
Y GSE location of spacecraft [Re] 20.300
Z GSE location of spacecraft [Re] 3.838
Upstream plasma points selected for analysis 0009
Upstream field points selected for analysis 0308
Downstream plasma points selected for analysis 0007
Downstream field points selected for analysis 0259
Minimum chisq/dof for RH8,RH9,RH10 4.27, 13.85, 14.79
Event added to database
Mon Feb 14 11:05:47 2005
Event last processed
Mon Mar 30 17:26:51 2009
Method selected
RH08
Propagation delay to Earth [minutes]
55.151 ± 1.061

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -320.4 ± 1.3 -372.2 ± 1.6
Vy GSE [km/s] -7.9 ± 2.1 -30.7 ± 3.0
Vz GSE [km/s] -21.8 ± 2.5 -25.3 ± 5.3
Wi [km/s] 28.3 ± 0.6 35.1 ± 1.5
We [km/s] 894.2 ± 17.8 1110.3 ± 48.3
Ni [n/cc] 7.7 ± 0.2 15.7 ± 1.4
Bx GSE [nT] 0.8 ± 0.7 3.9 ± 0.6
By GSE [nT] -5.3 ± 0.3 -9.5 ± 0.5
Bz GSE [nT] -0.3 ± 1.3 1.0 ± 3.4
Plasma Beta
0.424 ± 0.411
0.356 ± 0.380
Sound Speed [km/s]
36.51 ± 0.73
45.33 ± 1.97
Alfven Speed [km/s]
43.47 ± 1.13
59.44 ± 3.69

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.649 ± 0.567 -0.654 ± 0.563 -0.389 ± 0.368 -22.90 ± 33.36 225.23 ± 47.68
VC -0.914 ± 0.023 -0.400 ± 0.052 -0.063 ± 0.063 -3.60 ± 5.66 203.65 ± 3.23
MX1 -0.809 ± 0.115 -0.578 ± 0.160 -0.105 ± 0.105 -6.04 ± 6.53 215.54 ± 11.33
MX2 -0.846 ± 0.077 -0.530 ± 0.123 -0.063 ± 0.063 -3.62 ± 8.07 212.06 ± 8.34
MX3 -0.859 ± 0.070 -0.510 ± 0.117 -0.048 ± 0.048 -2.74 ± 9.95 210.69 ± 7.79
RH08 -0.979 ± 0.004 -0.200 ± 0.018 -0.050 ± 0.050 -2.88 ± 0.88 191.53 ± 1.04
RH09 -0.790 ± 0.043 -0.448 ± 0.062 0.419 ± 0.393 24.77 ± 3.98 209.58 ± 4.37
RH10 -0.818 ± 0.040 -0.427 ± 0.063 0.385 ± 0.365 22.67 ± 4.03 207.58 ± 4.34
Average -0.833 -0.468 0.011 0.708 209.482
Median -0.818 -0.448 -0.050 -2.882 210.686
Deviation 0.097 0.137 0.267 15.704 9.656

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 56.3 ± 11.7 317.7 ± 9.3 2.03 ± 0.17
VC 75.6 ± 8.3 407.5 ± 8.0 2.03 ± 0.17
MX1 64.0 ± 8.8 374.0 ± 7.8 2.03 ± 0.17
MX2 67.4 ± 8.4 385.7 ± 7.7 2.03 ± 0.17
MX3 68.8 ± 8.2 389.8 ± 7.6 2.03 ± 0.17
RH08 87.4 ± 8.1 423.4 ± 8.1 2.03 ± 0.17
RH09 73.2 ± 5.3 346.1 ± 5.2 2.03 ± 0.17
RH10 74.6 ± 5.3 358.4 ± 5.3 2.03 ± 0.17
Average 70.9 375.3 2.03
Median 73.2 385.7 2.03
Deviation 9.2 34.1 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 96.2 ± 2.0 16.2 ± 0.2 24.1 ± 0.6 54.4 ± 0.9 5.96 ± 0.16 1.77 ± 0.05
VC 110.0 ± 1.4 7.0 ± 0.1 10.8 ± 0.3 56.3 ± 0.9 15.71 ± 0.27 1.95 ± 0.03
MX1 107.9 ± 1.6 12.6 ± 0.2 19.1 ± 0.5 55.4 ± 0.9 8.59 ± 0.17 1.95 ± 0.04
MX2 109.2 ± 1.5 10.9 ± 0.2 16.7 ± 0.4 55.7 ± 0.9 9.99 ± 0.19 1.96 ± 0.04
MX3 109.5 ± 1.5 10.3 ± 0.2 15.7 ± 0.4 55.8 ± 0.9 10.65 ± 0.20 1.96 ± 0.04
RH8 107.2 ± 1.3 1.3 ± 0.0 2.0 ± 0.1 56.8 ± 0.9 84.97 ± 1.31 1.89 ± 0.03
RH9 98.7 ± 1.6 8.1 ± 0.1 12.5 ± 0.3 56.2 ± 0.9 12.12 ± 0.20 1.76 ± 0.03
RH10 101.3 ± 1.5 7.5 ± 0.1 11.6 ± 0.3 56.3 ± 0.9 13.52 ± 0.22 1.80 ± 0.03
Average 105.0 9.2 14.1 55.9 20.2 1.9
Median 107.9 10.3 15.7 56.2 12.1 1.9
Deviation 5.4 4.4 6.6 0.7 26.3 0.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 46.3 ± 2.6 20.7 ± 0.3 32.9 ± 2.0 71.9 ± 2.1 2.24 ± 0.12 0.64 ± 0.03
VC 53.4 ± 2.1 9.0 ± 0.1 14.8 ± 0.9 74.3 ± 2.0 5.93 ± 0.26 0.72 ± 0.02
MX1 52.4 ± 2.4 16.1 ± 0.2 26.1 ± 1.6 73.1 ± 2.0 3.25 ± 0.16 0.72 ± 0.02
MX2 53.1 ± 2.3 14.0 ± 0.2 22.8 ± 1.4 73.5 ± 2.0 3.78 ± 0.18 0.72 ± 0.02
MX3 53.2 ± 2.3 13.2 ± 0.2 21.5 ± 1.3 73.7 ± 2.0 4.03 ± 0.19 0.72 ± 0.02
RH8 51.8 ± 1.8 1.6 ± 0.0 2.7 ± 0.2 74.8 ± 2.0 31.92 ± 1.22 0.69 ± 0.02
RH9 49.1 ± 3.6 10.5 ± 0.2 17.2 ± 1.1 74.1 ± 2.0 4.69 ± 0.39 0.66 ± 0.04
RH10 50.6 ± 3.5 9.6 ± 0.1 15.8 ± 1.0 74.2 ± 2.0 5.26 ± 0.41 0.68 ± 0.03
Average 51.2 11.9 19.2 73.7 7.6 0.7
Median 52.4 13.2 21.5 74.1 4.7 0.7
Deviation 2.5 5.6 9.0 0.9 9.9 0.0

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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