CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20150990106
Observation time: 04/09/2015 99.04606 0106 [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 99.046059
Arrival time of shock [seconds of day] 3979.5 ± 190.0
Shock type NN
Electron data availability 0
X GSE location of spacecraft [Re] 259.742
Y GSE location of spacecraft [Re] -21.731
Z GSE location of spacecraft [Re] 18.165
Upstream plasma points selected for analysis 0007
Upstream field points selected for analysis 0211
Downstream plasma points selected for analysis 0004
Downstream field points selected for analysis 0145
Minimum chisq/dof for RH8,RH9,RH10 7.84, 10.90, 11.56
Event added to database
Thu Jan 28 14:18:46 2016
Event last processed
Tue May 17 16:39:44 2016
Method selected
RH08
Propagation delay to Earth [minutes]
69.177 ± 0.681

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -323.4 ± 4.7 -361.7 ± 1.7
Vy GSE [km/s] 4.7 ± 2.8 21.1 ± 1.3
Vz GSE [km/s] 10.2 ± 8.9 16.9 ± 3.6
Wi [km/s] 28.4 ± 4.0 30.3 ± 2.0
We [km/s] 898.3 ± 127.4 957.6 ± 62.8
Ni [n/cc] 4.1 ± 0.3 9.1 ± 0.4
Bx GSE [nT] -3.7 ± 0.2 -3.4 ± 0.2
By GSE [nT] -0.3 ± 0.4 -5.4 ± 0.3
Bz GSE [nT] -1.0 ± 0.4 -2.6 ± 0.5
Plasma Beta
0.462 ± 0.458
0.371 ± 0.369
Sound Speed [km/s]
36.67 ± 5.20
39.09 ± 2.57
Alfven Speed [km/s]
41.89 ± 2.67
49.93 ± 1.17

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.973 ± 0.032 0.001 ± 0.043 -0.230 ± 0.226 -13.28 ± 8.06 179.93 ± 2.55
VC -0.905 ± 0.045 0.391 ± 0.072 0.167 ± 0.165 9.60 ± 12.40 156.67 ± 4.44
MX1 -0.981 ± 0.031 -0.012 ± 0.044 -0.193 ± 0.191 -11.13 ± 9.07 180.71 ± 2.58
MX2 -0.997 ± 0.007 -0.058 ± 0.055 -0.042 ± 0.042 -2.41 ± 9.11 183.34 ± 3.14
MX3 -0.996 ± 0.008 -0.082 ± 0.069 0.032 ± 0.032 1.84 ± 10.76 184.69 ± 3.96
RH08 -0.995 ± 0.002 -0.079 ± 0.018 0.061 ± 0.061 3.52 ± 1.20 184.51 ± 1.05
RH09 -0.994 ± 0.007 -0.078 ± 0.064 0.073 ± 0.072 4.16 ± 3.96 184.51 ± 3.70
RH10 -0.994 ± 0.007 -0.078 ± 0.066 0.073 ± 0.072 4.16 ± 4.00 184.51 ± 3.82
Average -0.980 0.001 -0.007 -0.441 179.860
Median -0.994 -0.058 0.061 3.523 184.513
Deviation 0.031 0.161 0.139 7.993 9.555

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 8.5 ± 6.2 375.7 ± 1.1 2.35 ± 0.25
VC 38.5 ± 4.4 372.8 ± 1.1 2.35 ± 0.25
MX1 8.9 ± 6.2 379.9 ± 1.1 2.35 ± 0.25
MX2 15.0 ± 4.8 388.5 ± 1.1 2.35 ± 0.25
MX3 18.6 ± 5.1 389.4 ± 1.1 2.35 ± 0.25
RH08 20.2 ± 5.2 389.8 ± 1.1 2.35 ± 0.25
RH09 20.8 ± 5.2 389.7 ± 1.1 2.35 ± 0.25
RH10 20.8 ± 5.2 389.7 ± 5.8 2.35 ± 0.25
Average 18.9 384.5 2.35
Median 20.2 389.4 2.35
Deviation 9.4 7.2 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 63.3 ± 6.3 35.0 ± 4.2 41.4 ± 2.6 43.3 ± 3.4 1.81 ± 0.08 1.46 ± 0.06
VC 76.4 ± 3.5 23.8 ± 2.5 32.8 ± 2.1 50.4 ± 4.6 3.23 ± 0.19 1.52 ± 0.07
MX1 64.6 ± 6.0 34.9 ± 4.1 41.4 ± 2.6 43.4 ± 3.5 1.86 ± 0.08 1.49 ± 0.06
MX2 66.7 ± 5.0 33.0 ± 3.7 40.5 ± 2.6 44.9 ± 3.8 2.03 ± 0.09 1.49 ± 0.05
MX3 67.3 ± 4.5 31.7 ± 3.5 39.7 ± 2.5 45.8 ± 3.9 2.13 ± 0.10 1.47 ± 0.06
RH8 67.8 ± 4.3 31.1 ± 3.4 39.3 ± 2.5 46.2 ± 4.0 2.19 ± 0.11 1.47 ± 0.06
RH9 67.8 ± 4.2 30.9 ± 3.4 39.2 ± 2.5 46.4 ± 4.0 2.20 ± 0.11 1.46 ± 0.06
RH10 67.8 ± 4.2 30.9 ± 3.4 39.2 ± 2.5 46.4 ± 4.0 2.20 ± 0.11 1.46 ± 0.06
Average 67.7 31.4 39.2 45.9 2.2 1.5
Median 67.8 31.7 39.7 46.2 2.2 1.5
Deviation 3.9 3.5 2.8 2.2 0.4 0.0

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 27.5 ± 2.0 38.0 ± 2.2 49.4 ± 1.2 50.8 ± 0.9 0.72 ± 0.03 0.54 ± 0.05
VC 34.3 ± 1.2 26.4 ± 1.0 39.1 ± 0.9 57.7 ± 0.9 1.30 ± 0.05 0.59 ± 0.03
MX1 28.6 ± 2.0 37.9 ± 2.2 49.3 ± 1.2 50.9 ± 0.9 0.75 ± 0.03 0.56 ± 0.05
MX2 29.7 ± 1.8 36.1 ± 1.8 48.2 ± 1.1 52.1 ± 0.8 0.82 ± 0.04 0.57 ± 0.04
MX3 30.4 ± 1.8 34.9 ± 1.6 47.3 ± 1.1 53.0 ± 0.7 0.87 ± 0.05 0.57 ± 0.04
RH8 30.6 ± 1.8 34.3 ± 1.6 46.9 ± 1.1 53.4 ± 0.7 0.89 ± 0.05 0.57 ± 0.04
RH9 30.5 ± 1.8 34.1 ± 1.5 46.7 ± 1.1 53.5 ± 0.7 0.90 ± 0.05 0.57 ± 0.04
RH10 30.5 ± 1.8 34.1 ± 1.5 46.7 ± 1.1 53.5 ± 0.7 0.90 ± 0.05 0.57 ± 0.04
Average 30.3 34.5 46.7 53.1 0.9 0.6
Median 30.5 34.9 47.3 53.4 0.9 0.6
Deviation 2.0 3.6 3.3 2.2 0.2 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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