CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20111791327
Observation time: 06/28/2011 179.56082 1327 [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 2011
Fractional day of year 179.560816
Arrival time of shock [seconds of day] 48454.5 ± 20.0
Shock type SF
Electron data availability 0
X GSE location of spacecraft [Re] 226.443
Y GSE location of spacecraft [Re] -100.698
Z GSE location of spacecraft [Re] 6.263
Upstream plasma points selected for analysis 0003
Upstream field points selected for analysis 0100
Downstream plasma points selected for analysis 0001
Downstream field points selected for analysis 0035
Minimum chisq/dof for RH8,RH9,RH10 -37838.57,-31555.96,-27050.56
Event added to database
Fri Sep 20 11:29:57 2013
Event last processed
Tue Sep 24 10:16:00 2013
Method selected
RH08
Propagation delay to Earth [minutes]
83.281 ± 18.668

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -376.1 ± 0.8 -424.2 ± -424.2
Vy GSE [km/s] -12.0 ± 1.5 16.8 ± 16.8
Vz GSE [km/s] -12.3 ± 1.2 2.2 ± 2.2
Wi [km/s] 18.1 ± 1.0 32.7 ± 32.7
We [km/s] 573.7 ± 31.3 1035.6 ± 1035.6
Ni [n/cc] 1.3 ± 0.1 4.4 ± 4.4
Bx GSE [nT] 3.4 ± 0.0 -0.9 ± -0.9
By GSE [nT] -2.7 ± 0.0 -0.3 ± -0.3
Bz GSE [nT] -0.1 ± 0.0 1.8 ± 1.8
Plasma Beta
0.047 ± 0.043
2.456 ± 2.456
Sound Speed [km/s]
23.42 ± 1.28
42.28 ± 42.28
Alfven Speed [km/s]
84.03 ± 4.06
20.90 ± 20.90

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.054 ± 0.004 0.556 ± 0.008 -0.829 ± 0.546 -56.03 ± 0.56 95.52 ± 0.37
VC -0.831 ± 0.015 0.497 ± 0.024 0.250 ± 0.245 14.50 ± 1.22 149.11 ± 1.64
MX1 -0.811 ± 0.850 0.458 ± 1.405 -0.364 ± 0.347 -21.36 ± 58.17 150.56 ± 98.42
MX2 -0.065 ± 0.013 0.543 ± 0.007 -0.837 ± 0.543 -56.86 ± 0.47 96.83 ± 1.33
MX3 -0.254 ± 0.248 0.385 ± 0.176 -0.887 ± 0.503 -62.53 ± 5.56 123.44 ± 36.27
RH08 -0.482 ± 0.061 0.680 ± 0.051 0.553 ± 0.488 33.58 ± 3.97 125.35 ± 4.84
RH09 -0.482 ± 0.026 0.680 ± 0.023 0.553 ± 0.488 33.58 ± 2.00 125.35 ± 2.00
RH10 -0.482 ± 0.026 0.680 ± 0.023 0.553 ± 0.488 33.58 ± 2.00 125.35 ± 2.00
Average -0.433 0.560 -0.126 -10.192 123.937
Median -0.482 0.556 0.250 14.505 125.348
Deviation 0.298 0.112 0.672 43.916 20.324

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 68.3 ± 0.2 32.5 ± 0.7 3.46 ± 0.31
VC 15.3 ± 0.1 385.3 ± 2.1 3.46 ± 0.31
MX1 24.7 ± 0.8 370.2 ± 1.9 3.46 ± 0.31
MX2 68.3 ± 0.2 37.1 ± 0.7 3.46 ± 0.31
MX3 65.4 ± 0.5 116.3 ± 0.8 3.46 ± 0.31
RH08 35.2 ± 0.8 237.9 ± 1.8 3.46 ± 0.31
RH09 35.2 ± 0.8 237.9 ± 1.8 3.46 ± 0.31
RH10 35.2 ± 0.8 237.9 ± 2.6 3.46 ± 0.31
Average 43.5 206.9 3.46
Median 35.2 237.9 3.46
Deviation 20.9 135.7 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 8.8 ± 1.7 8.4 ± 0.4 31.0 ± 1.5 86.8 ± 3.8 1.05 ± 0.14 0.10 ± 0.02
VC 81.9 ± 0.2 22.5 ± 1.2 81.1 ± 3.9 84.3 ± 4.0 3.64 ± 0.19 0.97 ± 0.05
MX1 66.3 ± 0.8 21.1 ± 1.1 76.3 ± 3.7 84.6 ± 4.0 3.14 ± 0.14 0.78 ± 0.05
MX2 8.9 ± 1.6 8.4 ± 0.4 31.1 ± 1.5 86.8 ± 3.8 1.06 ± 0.14 0.10 ± 0.02
MX3 14.5 ± 1.4 9.4 ± 0.5 35.0 ± 1.7 86.7 ± 3.8 1.53 ± 0.09 0.17 ± 0.02
RH8 71.6 ± 0.3 18.9 ± 1.0 68.6 ± 3.3 85.2 ± 3.9 3.80 ± 0.19 0.84 ± 0.04
RH9 71.6 ± 0.3 18.9 ± 1.0 68.6 ± 3.3 85.2 ± 3.9 3.80 ± 0.19 0.84 ± 0.04
RH10 71.6 ± 0.3 18.9 ± 1.0 68.6 ± 3.3 85.2 ± 3.9 3.80 ± 0.19 0.84 ± 0.04
Average 49.4 15.8 57.5 85.6 2.7 0.6
Median 71.6 18.9 68.6 85.2 3.6 0.8
Deviation 32.4 6.0 21.3 1.0 1.3 0.4

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 2.2 ± 2.2 7.0 ± 7.0 7.7 ± 7.7 46.6 ± 46.6 0.32 ± 0.32 0.05 ± 0.05
VC 24.0 ± 24.0 19.9 ± 19.9 20.2 ± 20.2 42.7 ± 42.7 1.20 ± 1.20 0.56 ± 0.56
MX1 19.3 ± 19.3 18.5 ± 18.5 19.0 ± 19.0 43.4 ± 43.4 1.05 ± 1.05 0.45 ± 0.45
MX2 2.3 ± 2.3 7.0 ± 7.0 7.7 ± 7.7 46.6 ± 46.6 0.32 ± 0.32 0.05 ± 0.05
MX3 4.0 ± 4.0 7.9 ± 7.9 8.7 ± 8.7 46.5 ± 46.5 0.51 ± 0.51 0.09 ± 0.09
RH8 20.8 ± 20.8 16.3 ± 16.3 17.1 ± 17.1 44.3 ± 44.3 1.28 ± 1.28 0.47 ± 0.47
RH9 20.8 ± 20.8 16.3 ± 16.3 17.1 ± 17.1 44.3 ± 44.3 1.28 ± 1.28 0.47 ± 0.47
RH10 20.8 ± 20.8 16.3 ± 16.3 17.1 ± 17.1 44.3 ± 44.3 1.28 ± 1.28 0.47 ± 0.47
Average 14.3 13.7 14.3 44.8 0.9 0.3
Median 20.8 16.3 17.1 44.3 1.2 0.5
Deviation 9.6 5.4 5.3 1.5 0.4 0.2

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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