CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20151260055
Observation time: 05/06/2015 126.03877 0055 [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 2015
Fractional day of year 126.038767
Arrival time of shock [seconds of day] 3349.5 ± 30.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 237.620
Y GSE location of spacecraft [Re] -91.831
Z GSE location of spacecraft [Re] 13.617
Upstream plasma points selected for analysis 0008
Upstream field points selected for analysis 0258
Downstream plasma points selected for analysis 0008
Downstream field points selected for analysis 0236
Minimum chisq/dof for RH8,RH9,RH10 5.37, 13.41, 13.96
Event added to database
Thu Jan 28 14:36:31 2016
Event last processed
Tue May 17 16:51:01 2016
Method selected
RH08
Propagation delay to Earth [minutes]
45.029 ± 0.518

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -377.9 ± 6.0 -453.8 ± 4.8
Vy GSE [km/s] -23.3 ± 2.1 -44.8 ± 4.3
Vz GSE [km/s] -10.8 ± 3.7 -23.3 ± 6.5
Wi [km/s] 25.0 ± 2.7 35.9 ± 1.3
We [km/s] 791.9 ± 85.2 1135.3 ± 40.6
Ni [n/cc] 5.0 ± 0.9 10.6 ± 0.6
Bx GSE [nT] -0.5 ± 0.9 -2.5 ± 0.6
By GSE [nT] 5.3 ± 0.2 12.2 ± 1.3
Bz GSE [nT] 2.1 ± 0.4 3.5 ± 2.2
Plasma Beta
0.198 ± 0.201
0.167 ± 0.163
Sound Speed [km/s]
32.33 ± 3.48
46.35 ± 1.66
Alfven Speed [km/s]
57.35 ± 5.21
88.17 ± 5.31

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.935 ± 0.205 -0.287 ± 0.444 -0.207 ± 0.204 -11.95 ± 44.49 197.09 ± 27.07
VC -0.951 ± 0.018 -0.267 ± 0.042 -0.157 ± 0.156 -9.02 ± 5.05 195.70 ± 2.50
MX1 -0.961 ± 0.034 -0.235 ± 0.128 -0.146 ± 0.144 -8.37 ± 5.64 193.73 ± 7.60
MX2 -0.961 ± 0.032 -0.235 ± 0.121 -0.149 ± 0.148 -8.58 ± 5.21 193.73 ± 7.21
MX3 -0.960 ± 0.032 -0.235 ± 0.118 -0.152 ± 0.150 -8.72 ± 5.16 193.73 ± 7.02
RH08 -0.990 ± 0.002 -0.113 ± 0.013 -0.084 ± 0.084 -4.81 ± 0.82 186.52 ± 0.75
RH09 -0.998 ± 0.005 -0.044 ± 0.068 -0.050 ± 0.050 -2.88 ± 4.06 182.51 ± 3.91
RH10 -0.998 ± 0.004 -0.044 ± 0.068 -0.039 ± 0.039 -2.24 ± 4.06 182.51 ± 3.91
Average -0.969 -0.182 -0.123 -7.072 190.689
Median -0.961 -0.235 -0.146 -8.368 193.730
Deviation 0.023 0.100 0.059 3.388 5.917

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 75.2 ± 9.6 515.5 ± 3.6 2.18 ± 0.46
VC 77.5 ± 9.5 520.1 ± 3.7 2.18 ± 0.46
MX1 79.6 ± 9.5 522.8 ± 3.7 2.18 ± 0.46
MX2 79.5 ± 9.5 522.7 ± 3.7 2.18 ± 0.46
MX3 79.4 ± 9.5 522.7 ± 3.7 2.18 ± 0.46
RH08 87.5 ± 9.5 527.5 ± 3.6 2.18 ± 0.46
RH09 88.1 ± 9.4 525.6 ± 3.5 2.18 ± 0.46
RH10 87.8 ± 9.4 525.5 ± 28.1 2.18 ± 0.46
Average 81.8 522.8 2.18
Median 79.6 522.8 2.18
Deviation 5.2 3.7 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 153.2 ± 6.5 7.2 ± 0.5 14.6 ± 1.3 65.6 ± 4.5 21.37 ± 0.97 2.34 ± 0.14
VC 152.9 ± 6.4 6.1 ± 0.5 12.4 ± 1.1 65.7 ± 4.5 25.19 ± 1.15 2.33 ± 0.14
MX1 152.6 ± 6.4 5.1 ± 0.4 10.4 ± 0.9 65.8 ± 4.5 30.05 ± 1.37 2.33 ± 0.14
MX2 152.7 ± 6.4 5.1 ± 0.4 10.5 ± 1.0 65.8 ± 4.5 29.84 ± 1.36 2.33 ± 0.14
MX3 152.7 ± 6.4 5.2 ± 0.4 10.5 ± 1.0 65.8 ± 4.5 29.71 ± 1.35 2.33 ± 0.14
RH8 149.9 ± 6.3 1.2 ± 0.1 2.5 ± 0.2 65.9 ± 4.5 123.40 ± 5.63 2.28 ± 0.13
RH9 146.9 ± 6.1 0.9 ± 0.1 1.9 ± 0.2 66.0 ± 4.5 156.05 ± 7.15 2.23 ± 0.13
RH10 146.8 ± 6.1 1.1 ± 0.1 2.2 ± 0.2 66.0 ± 4.5 138.84 ± 6.39 2.23 ± 0.13
Average 151.0 4.0 8.1 65.8 69.3 2.3
Median 152.7 5.1 10.5 65.8 30.0 2.3
Deviation 2.7 2.5 5.1 0.1 58.8 0.0

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 73.4 ± 5.0 10.5 ± 0.4 22.5 ± 1.4 99.1 ± 4.9 7.00 ± 0.65 0.74 ± 0.09
VC 73.0 ± 5.1 8.9 ± 0.3 19.1 ± 1.2 99.2 ± 4.9 8.22 ± 0.78 0.74 ± 0.09
MX1 72.8 ± 5.1 7.5 ± 0.3 16.0 ± 1.0 99.4 ± 4.9 9.78 ± 0.92 0.74 ± 0.09
MX2 72.8 ± 5.1 7.5 ± 0.3 16.1 ± 1.0 99.4 ± 4.9 9.72 ± 0.92 0.74 ± 0.09
MX3 72.9 ± 5.1 7.5 ± 0.3 16.2 ± 1.0 99.4 ± 4.9 9.68 ± 0.91 0.74 ± 0.09
RH8 71.2 ± 4.9 1.8 ± 0.1 3.8 ± 0.2 99.6 ± 4.9 40.04 ± 3.75 0.72 ± 0.08
RH9 69.6 ± 4.8 1.4 ± 0.0 3.0 ± 0.2 99.6 ± 4.9 50.48 ± 4.72 0.70 ± 0.08
RH10 69.6 ± 4.8 1.6 ± 0.1 3.3 ± 0.2 99.6 ± 4.9 44.93 ± 4.23 0.70 ± 0.08
Average 71.9 5.8 12.5 99.4 22.5 0.7
Median 72.8 7.5 16.1 99.4 9.8 0.7
Deviation 1.6 3.7 7.9 0.2 19.0 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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