CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20120670328
Observation time: 03/07/2012 67.14488 0328 [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 2012
Fractional day of year 67.144878
Arrival time of shock [seconds of day] 12517.5 ± 10.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 207.830
Y GSE location of spacecraft [Re] 91.839
Z GSE location of spacecraft [Re] -7.349
Upstream plasma points selected for analysis 0003
Upstream field points selected for analysis 0099
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0099
Minimum chisq/dof for RH8,RH9,RH10 30.29, Infinity, -2963.97
Event added to database
Thu Sep 19 12:23:36 2013
Event last processed
Mon Oct 7 14:04:53 2013
Method selected
RH08
Propagation delay to Earth [minutes]
46.837 ± 3.384

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -357.7 ± 2.9 -421.7 ± 7.4
Vy GSE [km/s] -18.1 ± 2.3 -48.7 ± 3.7
Vz GSE [km/s] 2.7 ± 3.2 17.6 ± 10.5
Wi [km/s] 28.7 ± 0.4 37.4 ± 2.0
We [km/s] 907.5 ± 11.2 1183.7 ± 64.3
Ni [n/cc] 6.9 ± 0.4 12.8 ± 0.5
Bx GSE [nT] 2.6 ± 0.6 3.7 ± 1.3
By GSE [nT] -7.2 ± 0.6 -12.8 ± 0.7
Bz GSE [nT] -4.6 ± 0.2 -10.1 ± 1.8
Plasma Beta
0.151 ± 0.156
0.134 ± 0.125
Sound Speed [km/s]
37.05 ± 0.46
48.32 ± 2.62
Alfven Speed [km/s]
74.10 ± 4.58
102.60 ± 2.89

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.749 ± 0.249 0.433 ± 0.360 -0.502 ± 0.455 -30.16 ± 19.16 149.97 ± 26.82
VC -0.880 ± 0.045 -0.426 ± 0.077 0.208 ± 0.205 12.03 ± 8.10 205.83 ± 4.94
MX1 -0.897 ± 0.064 -0.370 ± 0.145 0.241 ± 0.236 13.92 ± 6.00 202.40 ± 9.23
MX2 -0.890 ± 0.061 -0.380 ± 0.132 0.250 ± 0.245 14.47 ± 5.74 203.13 ± 8.48
MX3 -0.883 ± 0.057 -0.392 ± 0.119 0.260 ± 0.254 15.05 ± 5.54 203.93 ± 7.69
RH08 -0.885 ± 0.033 -0.350 ± 0.066 0.307 ± 0.297 17.89 ± 4.01 201.56 ± 4.24
RH09 -0.106 ± 0.025 0.105 ± 0.025 -0.989 ± 0.212 -81.43 ± 2.00 135.38 ± 2.00
RH10 -0.143 ± 0.068 0.789 ± 0.043 0.598 ± 0.514 36.71 ± 4.04 100.28 ± 4.91
Average -0.679 -0.074 0.047 -0.190 175.308
Median -0.880 -0.350 0.250 14.471 202.398
Deviation 0.346 0.465 0.520 37.762 41.081

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 72.3 ± 2.9 328.5 ± 9.1 1.87 ± 0.16
VC 88.9 ± 2.0 480.2 ± 5.0 1.87 ± 0.16
MX1 85.1 ± 2.0 485.1 ± 4.9 1.87 ± 0.16
MX2 85.4 ± 2.0 482.6 ± 4.8 1.87 ± 0.16
MX3 85.8 ± 1.9 479.9 ± 4.7 1.87 ± 0.16
RH08 82.4 ± 1.9 479.0 ± 4.5 1.87 ± 0.16
RH09 66.6 ± 1.9 20.7 ± 7.3 1.87 ± 0.16
RH10 9.6 ± 3.0 23.6 ± 5.2 1.87 ± 0.16
Average 72.0 347.5 1.87
Median 85.1 479.9 1.87
Deviation 26.4 207.6 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 69.9 ± 3.6 10.1 ± 0.2 22.5 ± 1.4 82.2 ± 4.3 6.89 ± 0.22 0.85 ± 0.02
VC 157.0 ± 2.9 0.6 ± 0.0 1.4 ± 0.1 82.9 ± 4.3 249.06 ± 4.01 1.90 ± 0.08
MX1 156.7 ± 2.8 2.8 ± 0.1 6.4 ± 0.4 82.8 ± 4.3 55.04 ± 0.88 1.89 ± 0.08
MX2 156.6 ± 2.8 2.7 ± 0.1 5.9 ± 0.4 82.8 ± 4.3 58.90 ± 0.96 1.89 ± 0.08
MX3 156.4 ± 2.8 2.5 ± 0.1 5.5 ± 0.3 82.8 ± 4.3 63.79 ± 1.06 1.89 ± 0.08
RH8 155.2 ± 2.7 4.4 ± 0.1 9.9 ± 0.6 82.7 ± 4.3 35.16 ± 0.60 1.88 ± 0.08
RH9 -12.7 ± 3.4 13.3 ± 0.3 29.4 ± 1.8 81.8 ± 4.3 -0.96 ± 0.27 -0.16 ± 0.05
RH10 -14.9 ± 1.4 36.4 ± 0.5 73.1 ± 4.5 74.4 ± 4.6 -0.41 ± 0.03 -0.20 ± 0.01
Average 103.0 9.1 19.3 81.6 58.4 1.2
Median 156.4 4.4 9.9 82.8 55.0 1.9
Deviation 78.0 11.8 23.8 2.9 81.6 0.9

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 42.8 ± 12.4 13.4 ± 0.5 31.2 ± 0.9 112.7 ± 1.6 3.18 ± 0.79 0.38 ± 0.12
VC 84.5 ± 2.9 0.8 ± 0.0 2.0 ± 0.1 113.4 ± 1.5 101.71 ± 0.75 0.75 ± 0.03
MX1 84.4 ± 2.9 3.8 ± 0.1 8.8 ± 0.2 113.4 ± 1.5 22.48 ± 0.17 0.74 ± 0.03
MX2 84.2 ± 2.7 3.5 ± 0.1 8.2 ± 0.2 113.4 ± 1.5 24.03 ± 0.23 0.74 ± 0.03
MX3 84.0 ± 2.5 3.2 ± 0.1 7.6 ± 0.2 113.4 ± 1.5 26.00 ± 0.30 0.74 ± 0.03
RH8 83.3 ± 2.3 5.8 ± 0.2 13.7 ± 0.4 113.3 ± 1.5 14.32 ± 0.22 0.74 ± 0.03
RH9 -1.6 ± 11.6 17.6 ± 0.7 40.8 ± 1.1 112.1 ± 1.6 -0.11 ± 0.65 -0.01 ± 0.10
RH10 -8.8 ± 2.3 47.5 ± 2.5 101.2 ± 2.8 103.0 ± 2.8 -0.18 ± 0.04 -0.09 ± 0.03
Average 56.6 11.9 26.7 111.8 23.9 0.5
Median 84.0 5.8 13.7 113.4 22.5 0.7
Deviation 40.8 15.4 32.9 3.6 33.2 0.4

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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