CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20131200852
Observation time: 04/30/2013 120.36998 0852 [UT]

Wind spacecraft

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Asymptotic parameters
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Wave speed and Mach numbers
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Selected
Simple methods
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Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2013
Fractional day of year 120.369983
Arrival time of shock [seconds of day] 31966.5 ± 20.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 260.192
Y GSE location of spacecraft [Re] -26.927
Z GSE location of spacecraft [Re] 22.133
Upstream plasma points selected for analysis 0004
Upstream field points selected for analysis 0096
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0080
Minimum chisq/dof for RH8,RH9,RH10 9.67, 30.41, 45.77
Event added to database
Tue Oct 8 15:27:19 2013
Event last processed
Tue Oct 8 16:59:55 2013
Method selected
RH08
Propagation delay to Earth [minutes]
59.450 ± 0.748

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -362.1 ± 1.5 -395.4 ± 3.7
Vy GSE [km/s] -30.8 ± 1.3 -34.9 ± 7.4
Vz GSE [km/s] 3.1 ± 3.7 16.7 ± 3.0
Wi [km/s] 26.4 ± 1.1 29.6 ± 2.5
We [km/s] 834.6 ± 33.3 935.9 ± 78.4
Ni [n/cc] 5.7 ± 0.2 8.6 ± 0.8
Bx GSE [nT] 2.2 ± 0.1 2.7 ± 1.0
By GSE [nT] -3.3 ± 0.3 -3.1 ± 1.8
Bz GSE [nT] 2.9 ± 0.8 6.4 ± 1.6
Plasma Beta
0.336 ± 0.353
0.258 ± 0.258
Sound Speed [km/s]
34.07 ± 1.36
38.21 ± 3.20
Alfven Speed [km/s]
45.61 ± 2.34
58.85 ± 2.75

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.643 ± 0.274 0.755 ± 0.236 0.128 ± 0.127 7.34 ± 33.18 130.39 ± 20.44
VC -0.924 ± 0.043 -0.122 ± 0.189 0.363 ± 0.346 21.31 ± 5.51 187.52 ± 11.74
MX1 -0.982 ± 0.093 0.187 ± 0.488 0.015 ± 0.015 0.87 ± 15.47 169.23 ± 28.45
MX2 -0.995 ± 0.024 -0.063 ± 0.287 0.072 ± 0.072 4.13 ± 12.44 183.65 ± 16.54
MX3 -0.968 ± 0.044 -0.225 ± 0.172 0.113 ± 0.113 6.50 ± 9.89 193.12 ± 10.17
RH08 -0.999 ± 0.003 -0.009 ± 0.049 0.039 ± 0.039 2.24 ± 4.15 180.50 ± 2.80
RH09 -0.972 ± 0.016 0.128 ± 0.071 -0.196 ± 0.193 -11.28 ± 3.96 172.48 ± 4.16
RH10 -0.972 ± 0.016 0.128 ± 0.071 -0.196 ± 0.193 -11.28 ± 3.96 172.48 ± 4.16
Average -0.932 0.097 0.042 2.479 173.671
Median -0.972 0.128 0.072 4.133 180.501
Deviation 0.119 0.301 0.181 10.543 19.317

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 43.4 ± 8.6 272.7 ± 3.9 1.54 ± 0.18
VC 82.7 ± 4.0 446.6 ± 4.4 1.54 ± 0.18
MX1 55.9 ± 3.5 446.5 ± 2.5 1.54 ± 0.18
MX2 68.5 ± 2.4 462.6 ± 4.0 1.54 ± 0.18
MX3 77.2 ± 1.9 456.6 ± 5.0 1.54 ± 0.18
RH08 64.9 ± 2.5 461.4 ± 3.7 1.54 ± 0.18
RH09 50.4 ± 1.5 435.3 ± 2.7 1.54 ± 0.18
RH10 50.4 ± 1.5 435.3 ± 9.0 1.54 ± 0.18
Average 61.7 427.1 1.54
Median 64.9 446.6 1.54
Deviation 14.0 63.3 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 62.8 ± 2.2 21.4 ± 0.8 33.1 ± 1.7 52.8 ± 2.2 2.94 ± 0.19 1.19 ± 0.07
VC 107.3 ± 2.6 3.5 ± 0.1 5.8 ± 0.3 56.8 ± 2.3 30.99 ± 1.80 1.89 ± 0.10
MX1 96.6 ± 1.7 15.9 ± 0.6 25.6 ± 1.3 54.7 ± 2.2 6.07 ± 0.32 1.77 ± 0.09
MX2 100.1 ± 1.7 10.2 ± 0.4 16.7 ± 0.9 56.0 ± 2.3 9.87 ± 0.52 1.79 ± 0.09
MX3 99.0 ± 1.7 6.1 ± 0.2 10.1 ± 0.5 56.6 ± 2.3 16.28 ± 0.86 1.75 ± 0.09
RH8 99.2 ± 1.7 11.8 ± 0.4 19.3 ± 1.0 55.7 ± 2.3 8.41 ± 0.44 1.78 ± 0.09
RH9 87.9 ± 0.9 18.4 ± 0.7 29.1 ± 1.5 53.9 ± 2.2 4.78 ± 0.22 1.63 ± 0.08
RH10 87.9 ± 0.9 18.4 ± 0.7 29.1 ± 1.5 53.9 ± 2.2 4.78 ± 0.22 1.63 ± 0.08
Average 92.6 13.2 21.1 55.0 10.5 1.7
Median 99.0 15.9 25.6 55.7 8.4 1.8
Deviation 13.6 6.4 9.8 1.5 9.3 0.2

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 42.7 ± 8.1 24.8 ± 1.4 42.8 ± 2.0 65.7 ± 1.2 1.74 ± 0.42 0.65 ± 0.11
VC 71.1 ± 3.2 4.1 ± 0.2 7.5 ± 0.3 70.1 ± 0.8 17.55 ± 1.58 1.01 ± 0.04
MX1 64.4 ± 5.0 18.6 ± 0.9 33.0 ± 1.5 67.7 ± 1.0 3.48 ± 0.44 0.95 ± 0.06
MX2 65.6 ± 3.4 11.9 ± 0.6 21.6 ± 1.0 69.2 ± 0.9 5.55 ± 0.55 0.95 ± 0.04
MX3 64.2 ± 2.3 7.1 ± 0.3 13.1 ± 0.6 69.9 ± 0.8 9.04 ± 0.74 0.92 ± 0.03
RH8 65.3 ± 3.7 13.8 ± 0.7 24.9 ± 1.2 68.9 ± 0.9 4.75 ± 0.50 0.95 ± 0.04
RH9 58.6 ± 4.2 21.4 ± 1.1 37.5 ± 1.8 66.9 ± 1.1 2.75 ± 0.34 0.88 ± 0.05
RH10 58.6 ± 4.2 21.4 ± 1.1 37.5 ± 1.8 66.9 ± 1.1 2.75 ± 0.34 0.88 ± 0.05
Average 61.3 15.4 27.2 68.2 6.0 0.9
Median 64.4 18.6 33.0 68.9 4.7 0.9
Deviation 8.5 7.4 12.6 1.6 5.2 0.1

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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