CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19973340715
Observation time: 11/30/1997 334.30259 0715 [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 334.302587
Arrival time of shock [seconds of day] 26143.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 195.673
Y GSE location of spacecraft [Re] -3.157
Z GSE location of spacecraft [Re] 27.507
Upstream plasma points selected for analysis 0009
Upstream field points selected for analysis 0284
Downstream plasma points selected for analysis 0009
Downstream field points selected for analysis 0287
Minimum chisq/dof for RH8,RH9,RH10 3.92, 15.67, 16.68
Event added to database
Mon Feb 14 11:05:30 2005
Event last processed
Mon Mar 30 17:18:58 2009
Method selected
RH08
Propagation delay to Earth [minutes]
52.013 ± 4.899

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -297.5 ± 0.7 -325.1 ± 2.8
Vy GSE [km/s] -34.4 ± 1.0 -44.8 ± 1.4
Vz GSE [km/s] 1.3 ± 1.8 12.7 ± 2.4
Wi [km/s] 15.2 ± 0.2 21.0 ± 0.8
We [km/s] 480.4 ± 6.2 663.9 ± 24.1
Ni [n/cc] 19.2 ± 0.5 33.6 ± 2.0
Bx GSE [nT] 3.3 ± 0.1 4.5 ± 0.4
By GSE [nT] -2.8 ± 0.2 -7.5 ± 0.7
Bz GSE [nT] -2.1 ± 0.3 -2.1 ± 1.4
Plasma Beta
0.406 ± 0.398
0.377 ± 0.356
Sound Speed [km/s]
19.61 ± 0.25
27.10 ± 0.98
Alfven Speed [km/s]
23.87 ± 0.47
34.37 ± 1.41

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.791 ± 0.174 -0.119 ± 0.163 0.600 ± 0.515 36.84 ± 16.68 188.52 ± 11.68
VC -0.872 ± 0.042 -0.334 ± 0.068 0.359 ± 0.343 21.03 ± 5.67 200.95 ± 4.36
MX1 -0.891 ± 0.044 -0.242 ± 0.080 0.384 ± 0.364 22.60 ± 5.91 195.21 ± 5.07
MX2 -0.896 ± 0.040 -0.251 ± 0.075 0.366 ± 0.348 21.45 ± 5.57 195.63 ± 4.77
MX3 -0.900 ± 0.039 -0.256 ± 0.074 0.353 ± 0.338 20.69 ± 5.46 195.89 ± 4.67
RH08 -0.949 ± 0.004 -0.176 ± 0.014 0.263 ± 0.256 15.22 ± 0.74 190.53 ± 0.83
RH09 -0.913 ± 0.028 -0.186 ± 0.066 -0.363 ± 0.346 -21.29 ± 4.02 191.53 ± 4.12
RH10 -0.921 ± 0.027 -0.188 ± 0.069 -0.341 ± 0.327 -19.92 ± 4.00 191.53 ± 4.29
Average -0.892 -0.219 0.203 12.077 193.723
Median -0.896 -0.188 0.359 21.027 195.213
Deviation 0.046 0.065 0.355 21.091 3.957

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 43.2 ± 2.8 309.7 ± 5.7 1.75 ± 0.09
VC 56.5 ± 2.3 344.2 ± 5.2 1.75 ± 0.09
MX1 51.0 ± 2.3 346.6 ± 5.1 1.75 ± 0.09
MX2 51.6 ± 2.3 348.6 ± 5.0 1.75 ± 0.09
MX3 52.1 ± 2.3 349.9 ± 5.0 1.75 ± 0.09
RH08 49.1 ± 2.1 360.6 ± 4.4 1.75 ± 0.09
RH09 69.2 ± 2.2 331.4 ± 4.3 1.75 ± 0.09
RH10 68.4 ± 2.2 335.1 ± 4.3 1.75 ± 0.09
Average 55.1 340.8 1.75
Median 52.1 346.6 1.75
Deviation 9.2 15.4 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 69.4 ± 1.6 12.0 ± 0.1 17.4 ± 0.3 28.5 ± 0.4 5.80 ± 0.14 2.44 ± 0.07
VC 73.0 ± 1.4 8.7 ± 0.1 13.2 ± 0.3 29.6 ± 0.4 8.37 ± 0.19 2.46 ± 0.06
MX1 72.7 ± 1.4 10.1 ± 0.1 15.0 ± 0.3 29.2 ± 0.4 7.20 ± 0.16 2.49 ± 0.06
MX2 72.9 ± 1.3 9.9 ± 0.1 14.8 ± 0.3 29.3 ± 0.4 7.34 ± 0.16 2.49 ± 0.06
MX3 73.0 ± 1.3 9.8 ± 0.1 14.7 ± 0.3 29.3 ± 0.4 7.44 ± 0.16 2.49 ± 0.06
RH8 71.9 ± 1.2 10.6 ± 0.1 15.6 ± 0.3 29.0 ± 0.4 6.81 ± 0.13 2.48 ± 0.05
RH9 53.9 ± 0.7 5.5 ± 0.1 8.5 ± 0.2 30.4 ± 0.4 9.87 ± 0.17 1.77 ± 0.04
RH10 55.0 ± 0.7 5.7 ± 0.1 8.8 ± 0.2 30.4 ± 0.4 9.68 ± 0.16 1.81 ± 0.04
Average 67.7 9.0 13.5 29.5 7.8 2.3
Median 72.7 9.9 14.8 29.3 7.4 2.5
Deviation 8.3 2.3 3.2 0.7 1.4 0.3

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 39.5 ± 1.1 16.8 ± 0.2 25.0 ± 1.0 40.5 ± 0.7 2.36 ± 0.06 0.98 ± 0.03
VC 41.3 ± 1.4 12.2 ± 0.1 19.0 ± 0.8 42.1 ± 0.6 3.38 ± 0.10 0.98 ± 0.04
MX1 41.3 ± 1.5 14.1 ± 0.2 21.7 ± 0.9 41.4 ± 0.7 2.92 ± 0.09 1.00 ± 0.04
MX2 41.4 ± 1.5 13.9 ± 0.2 21.3 ± 0.9 41.5 ± 0.7 2.97 ± 0.10 1.00 ± 0.04
MX3 41.5 ± 1.6 13.7 ± 0.2 21.1 ± 0.9 41.6 ± 0.7 3.02 ± 0.10 1.00 ± 0.04
RH8 40.9 ± 1.9 14.8 ± 0.2 22.5 ± 0.9 41.2 ± 0.7 2.77 ± 0.12 0.99 ± 0.05
RH9 30.8 ± 3.1 7.6 ± 0.1 12.2 ± 0.5 43.1 ± 0.6 4.03 ± 0.39 0.72 ± 0.08
RH10 31.5 ± 3.1 8.0 ± 0.1 12.7 ± 0.5 43.1 ± 0.6 3.95 ± 0.37 0.73 ± 0.08
Average 38.5 12.6 19.4 41.8 3.2 0.9
Median 41.3 13.9 21.3 41.6 3.0 1.0
Deviation 4.6 3.2 4.6 0.9 0.6 0.1

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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