CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20153531538
Observation time: 12/19/2015 353.65165 1538 [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 2015
Fractional day of year 353.651649
Arrival time of shock [seconds of day] 56302.5 ± 20.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 195.069
Y GSE location of spacecraft [Re] -28.337
Z GSE location of spacecraft [Re] -10.233
Upstream plasma points selected for analysis 0008
Upstream field points selected for analysis 0237
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0119
Minimum chisq/dof for RH8,RH9,RH10 5.67, 19.32, 21.09
Event added to database
Thu Apr 28 09:50:37 2016
Event last processed
Tue May 17 17:26:55 2016
Method selected
RH08
Propagation delay to Earth [minutes]
37.465 ± 0.398

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -362.4 ± 3.4 -472.4 ± 2.9
Vy GSE [km/s] -22.8 ± 3.6 -50.5 ± 1.5
Vz GSE [km/s] -0.6 ± 2.5 -9.4 ± 10.9
Wi [km/s] 31.4 ± 3.8 56.8 ± 2.7
We [km/s] 993.3 ± 119.7 1797.2 ± 86.3
Ni [n/cc] 5.9 ± 1.2 16.6 ± 1.0
Bx GSE [nT] 3.2 ± 0.4 3.3 ± 1.2
By GSE [nT] -4.7 ± 0.5 -14.2 ± 1.0
Bz GSE [nT] -0.9 ± 0.4 -0.5 ± 3.9
Plasma Beta
0.361 ± 0.359
0.505 ± 0.511
Sound Speed [km/s]
40.55 ± 4.89
73.37 ± 3.52
Alfven Speed [km/s]
52.85 ± 8.99
80.19 ± 1.76

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.973 ± 0.087 0.116 ± 0.193 0.199 ± 0.196 11.46 ± 24.33 173.20 ± 11.34
VC -0.967 ± 0.010 -0.243 ± 0.029 -0.077 ± 0.077 -4.43 ± 4.69 194.12 ± 1.74
MX1 -1.000 ± 0.003 0.001 ± 0.115 -0.032 ± 0.032 -1.81 ± 5.40 179.97 ± 6.60
MX2 -0.996 ± 0.003 -0.021 ± 0.091 -0.084 ± 0.084 -4.82 ± 2.00 181.19 ± 5.21
MX3 -0.994 ± 0.004 -0.030 ± 0.081 -0.108 ± 0.107 -6.18 ± 1.69 181.75 ± 4.65
RH08 -0.996 ± 0.002 -0.079 ± 0.019 -0.050 ± 0.050 -2.88 ± 1.39 184.51 ± 1.09
RH09 -0.998 ± 0.004 0.044 ± 0.068 -0.039 ± 0.039 -2.24 ± 4.06 177.49 ± 3.91
RH10 -0.998 ± 0.004 0.044 ± 0.068 -0.039 ± 0.039 -2.24 ± 4.06 177.49 ± 3.91
Average -0.990 -0.021 -0.029 -1.642 181.216
Median -0.996 0.001 -0.039 -2.241 181.195
Deviation 0.013 0.107 0.096 5.510 6.224

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 48.4 ± 4.8 514.2 ± 3.5 3.09 ± 0.20
VC 71.1 ± 5.1 534.9 ± 3.8 3.09 ± 0.20
MX1 56.8 ± 5.1 536.7 ± 3.8 3.09 ± 0.20
MX2 58.7 ± 5.2 536.1 ± 3.8 3.09 ± 0.20
MX3 59.5 ± 5.2 535.5 ± 3.8 3.09 ± 0.20
RH08 61.5 ± 5.1 539.7 ± 3.8 3.09 ± 0.20
RH09 54.5 ± 5.1 533.2 ± 3.7 3.09 ± 0.20
RH10 54.5 ± 5.1 533.2 ± 17.9 3.09 ± 0.20
Average 58.1 532.9 3.09
Median 58.7 535.5 3.09
Deviation 6.6 7.8 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 164.4 ± 3.5 22.7 ± 3.0 35.1 ± 6.0 62.7 ± 9.4 7.35 ± 0.90 2.67 ± 0.36
VC 178.9 ± 3.6 10.5 ± 1.4 17.1 ± 2.9 65.8 ± 9.8 17.26 ± 2.04 2.76 ± 0.35
MX1 174.5 ± 3.4 18.3 ± 2.4 28.9 ± 4.9 64.1 ± 9.6 9.68 ± 1.16 2.77 ± 0.36
MX2 174.5 ± 3.3 17.3 ± 2.3 27.5 ± 4.7 64.4 ± 9.6 10.24 ± 1.22 2.76 ± 0.35
MX3 174.6 ± 3.3 16.8 ± 2.2 26.8 ± 4.6 64.5 ± 9.6 10.53 ± 1.25 2.75 ± 0.35
RH8 177.1 ± 3.4 15.8 ± 2.1 25.3 ± 4.3 64.8 ± 9.6 11.37 ± 1.36 2.78 ± 0.36
RH9 172.4 ± 3.3 19.5 ± 2.6 30.7 ± 5.2 63.7 ± 9.5 8.97 ± 1.08 2.75 ± 0.36
RH10 172.4 ± 3.3 19.5 ± 2.6 30.7 ± 5.2 63.7 ± 9.5 8.97 ± 1.08 2.75 ± 0.36
Average 173.6 17.5 27.8 64.2 10.5 2.7
Median 174.5 18.3 28.9 64.4 10.2 2.8
Deviation 4.3 3.5 5.3 0.9 3.0 0.0

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 62.2 ± 3.3 38.4 ± 0.7 53.3 ± 1.2 101.7 ± 1.2 1.62 ± 0.06 0.61 ± 0.03
VC 65.1 ± 2.9 17.7 ± 0.3 25.9 ± 0.6 107.3 ± 1.3 3.67 ± 0.12 0.61 ± 0.02
MX1 64.3 ± 2.9 30.9 ± 0.6 43.9 ± 1.0 104.3 ± 1.3 2.08 ± 0.07 0.62 ± 0.02
MX2 63.6 ± 3.0 29.2 ± 0.5 41.7 ± 0.9 104.7 ± 1.3 2.18 ± 0.08 0.61 ± 0.02
MX3 63.5 ± 3.1 28.4 ± 0.5 40.6 ± 0.9 105.0 ± 1.3 2.24 ± 0.09 0.60 ± 0.02
RH8 64.9 ± 2.9 26.7 ± 0.5 38.3 ± 0.8 105.4 ± 1.3 2.44 ± 0.08 0.62 ± 0.02
RH9 63.4 ± 2.9 33.0 ± 0.6 46.6 ± 1.0 103.6 ± 1.2 1.92 ± 0.07 0.61 ± 0.02
RH10 63.4 ± 2.9 33.0 ± 0.6 46.6 ± 1.0 103.6 ± 1.2 1.92 ± 0.07 0.61 ± 0.02
Average 63.8 29.6 42.1 104.4 2.3 0.6
Median 63.6 30.9 43.9 104.7 2.2 0.6
Deviation 0.9 6.0 8.0 1.6 0.6 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 Wed Jan 22 21:47:00 2020
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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