CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20151330957
Observation time: 05/13/2015 133.41462 0957 [UT]

Wind spacecraft

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Wave speed and Mach numbers
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Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2015
Fractional day of year 133.414617
Arrival time of shock [seconds of day] 35822.9 ± 60.0
Shock type NN
Electron data availability 0
X GSE location of spacecraft [Re] 230.120
Y GSE location of spacecraft [Re] -100.119
Z GSE location of spacecraft [Re] 10.453
Upstream plasma points selected for analysis 0008
Upstream field points selected for analysis 0260
Downstream plasma points selected for analysis 0008
Downstream field points selected for analysis 0260
Minimum chisq/dof for RH8,RH9,RH10 12.71, 19.19, 20.36
Event added to database
Thu Jan 28 16:55:58 2016
Event last processed
Tue May 17 16:53:30 2016
Method selected
RH08
Propagation delay to Earth [minutes]
21.145 ± 5.296

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -548.4 ± 11.0 -644.0 ± 3.1
Vy GSE [km/s] 46.4 ± 16.7 26.8 ± 2.9
Vz GSE [km/s] -22.0 ± 6.8 5.3 ± 17.5
Wi [km/s] 64.0 ± 5.5 56.5 ± 3.6
We [km/s] 2025.3 ± 172.7 1786.5 ± 115.2
Ni [n/cc] 4.2 ± 0.6 2.3 ± 0.1
Bx GSE [nT] 8.1 ± 1.0 4.3 ± 0.3
By GSE [nT] -7.8 ± 2.7 0.7 ± 0.3
Bz GSE [nT] 3.8 ± 1.5 0.9 ± 1.8
Plasma Beta
0.262 ± 0.216
0.679 ± 0.738
Sound Speed [km/s]
82.68 ± 7.05
72.93 ± 4.70
Alfven Speed [km/s]
130.73 ± 17.29
69.17 ± 3.25

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.902 ± 0.118 -0.412 ± 0.243 -0.131 ± 0.130 -7.54 ± 19.75 204.54 ± 15.40
VC -0.944 ± 0.057 -0.203 ± 0.173 0.261 ± 0.255 15.13 ± 9.70 192.15 ± 10.50
MX1 -0.879 ± 0.083 -0.339 ± 0.168 0.336 ± 0.322 19.61 ± 9.48 201.08 ± 10.87
MX2 -0.928 ± 0.217 -0.212 ± 0.431 0.306 ± 0.296 17.82 ± 37.30 192.86 ± 26.44
MX3 -0.885 ± 0.075 -0.342 ± 0.165 0.315 ± 0.304 18.37 ± 7.75 201.13 ± 10.65
RH08 -0.240 ± 0.015 -0.365 ± 0.013 -0.899 ± 0.489 -64.08 ± 0.74 236.66 ± 2.10
RH09 -0.916 ± 0.027 -0.400 ± 0.063 -0.017 ± 0.017 -0.96 ± 4.05 203.57 ± 3.91
RH10 -0.923 ± 0.026 -0.384 ± 0.063 0.006 ± 0.006 0.32 ± 4.05 202.56 ± 3.94
Average -0.827 -0.332 0.022 -0.167 204.318
Median -0.902 -0.342 0.261 15.129 202.563
Deviation 0.238 0.081 0.413 27.860 13.885

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 66.6 ± 12.9 367.1 ± 5.6 0.55 ± 0.10
VC 64.6 ± 9.2 371.0 ± 7.2 0.55 ± 0.10
MX1 74.0 ± 9.3 331.7 ± 6.6 0.55 ± 0.10
MX2 66.5 ± 8.9 361.7 ± 7.2 0.55 ± 0.10
MX3 73.5 ± 9.5 335.9 ± 6.5 0.55 ± 0.10
RH08 77.4 ± 11.5 130.5 ± 3.6 0.55 ± 0.10
RH09 67.8 ± 12.1 367.4 ± 5.9 0.55 ± 0.10
RH10 67.3 ± 12.0 369.2 ± 48.1 0.55 ± 0.10
Average 69.7 329.3 0.55
Median 67.8 367.1 0.55
Deviation 4.6 81.8 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -111.3 ± 4.7 27.9 ± 0.9 52.0 ± 6.9 152.8 ± 11.6 -3.99 ± 0.10 -0.73 ± 0.07
VC -131.5 ± 8.8 30.2 ± 1.0 56.2 ± 7.4 152.3 ± 11.7 -4.34 ± 0.22 -0.87 ± 0.12
MX1 -127.2 ± 6.9 19.2 ± 0.6 36.1 ± 4.8 154.1 ± 11.5 -6.62 ± 0.27 -0.83 ± 0.09
MX2 -130.8 ± 8.8 28.0 ± 0.9 52.1 ± 6.9 152.7 ± 11.6 -4.67 ± 0.24 -0.86 ± 0.11
MX3 -126.8 ± 6.9 19.8 ± 0.6 37.2 ± 4.9 154.0 ± 11.5 -6.40 ± 0.25 -0.83 ± 0.09
RH8 -4.1 ± 8.9 15.1 ± 0.5 28.5 ± 3.8 154.6 ± 11.5 -0.28 ± 0.58 -0.02 ± 0.06
RH9 -117.0 ± 5.2 26.5 ± 0.8 49.4 ± 6.5 153.0 ± 11.6 -4.42 ± 0.12 -0.77 ± 0.08
RH10 -119.3 ± 5.5 27.0 ± 0.9 50.4 ± 6.7 152.9 ± 11.6 -4.41 ± 0.13 -0.78 ± 0.08
Average -108.5 24.2 45.2 153.3 -4.4 -0.7
Median -119.3 27.0 50.4 153.0 -4.4 -0.8
Deviation 42.8 5.4 9.9 0.8 1.9 0.3

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -201.9 ± 4.6 20.3 ± 0.3 27.5 ± 1.3 98.6 ± 2.0 -9.95 ± 0.20 -2.05 ± 0.04
VC -232.7 ± 4.0 22.0 ± 0.4 29.7 ± 1.4 98.2 ± 2.0 -10.58 ± 0.31 -2.37 ± 0.08
MX1 -227.0 ± 4.9 13.9 ± 0.2 19.1 ± 0.9 99.7 ± 2.0 -16.29 ± 0.57 -2.28 ± 0.09
MX2 -232.0 ± 4.6 20.4 ± 0.3 27.6 ± 1.3 98.6 ± 2.0 -11.40 ± 0.37 -2.35 ± 0.09
MX3 -226.7 ± 4.6 14.4 ± 0.2 19.7 ± 0.9 99.6 ± 2.0 -15.76 ± 0.53 -2.28 ± 0.09
RH8 -9.7 ± 16.4 11.0 ± 0.2 15.1 ± 0.7 100.0 ± 2.0 -0.87 ± 1.47 -0.09 ± 0.16
RH9 -211.9 ± 3.1 19.2 ± 0.3 26.1 ± 1.2 98.8 ± 2.0 -11.02 ± 0.20 -2.15 ± 0.04
RH10 -215.2 ± 2.9 19.6 ± 0.3 26.7 ± 1.3 98.7 ± 2.0 -10.96 ± 0.20 -2.18 ± 0.05
Average -194.6 17.6 23.9 99.0 -10.9 -2.0
Median -215.2 19.6 26.7 98.8 -11.0 -2.2
Deviation 75.5 3.9 5.2 0.7 4.7 0.8

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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