CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20093390526
Observation time: 12/05/2009 339.22641 0526 [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 2009
Fractional day of year 339.226406
Arrival time of shock [seconds of day] 19561.5 ± 30.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 255.283
Y GSE location of spacecraft [Re] -20.181
Z GSE location of spacecraft [Re] 24.611
Upstream plasma points selected for analysis 0005
Upstream field points selected for analysis 0192
Downstream plasma points selected for analysis 0013
Downstream field points selected for analysis 0415
Minimum chisq/dof for RH8,RH9,RH10 6.31, 19.06, 21.80
Event added to database
Wed Sep 25 10:25:11 2013
Event last processed
Wed Sep 25 11:05:40 2013
Method selected
RH08
Propagation delay to Earth [minutes]
73.036 ± 39.815

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -235.6 ± 0.7 -255.5 ± 1.5
Vy GSE [km/s] -5.6 ± 0.5 -23.4 ± 0.8
Vz GSE [km/s] -3.2 ± 0.4 -19.9 ± 1.3
Wi [km/s] 11.7 ± 0.2 14.4 ± 0.4
We [km/s] 369.0 ± 5.2 454.7 ± 12.1
Ni [n/cc] 11.5 ± 0.3 26.0 ± 0.7
Bx GSE [nT] 1.5 ± 0.0 1.9 ± 0.3
By GSE [nT] -0.7 ± 0.1 -1.4 ± 0.3
Bz GSE [nT] 0.4 ± 0.0 0.2 ± 0.2
Plasma Beta
1.131 ± 1.157
2.246 ± 1.874
Sound Speed [km/s]
15.06 ± 0.21
18.56 ± 0.50
Alfven Speed [km/s]
10.99 ± 0.43
10.17 ± 1.82

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.871 ± 0.158 -0.283 ± 0.410 -0.402 ± 0.378 -23.67 ± 12.92 197.99 ± 26.88
VC -0.632 ± 0.035 -0.567 ± 0.039 -0.528 ± 0.472 -31.87 ± 1.87 221.87 ± 3.34
MX1 -0.853 ± 0.161 -0.280 ± 0.434 -0.440 ± 0.410 -26.14 ± 10.30 198.15 ± 29.13
MX2 -0.853 ± 0.163 -0.302 ± 0.398 -0.426 ± 0.398 -25.18 ± 11.86 199.51 ± 26.64
MX3 -0.818 ± 0.153 -0.450 ± 0.209 -0.358 ± 0.342 -20.98 ± 19.49 208.78 ± 14.05
RH08 -0.401 ± 0.009 -0.382 ± 0.009 0.832 ± 0.545 56.35 ± 0.64 223.62 ± 0.84
RH09 -0.555 ± 0.055 -0.529 ± 0.056 0.642 ± 0.535 39.98 ± 3.01 223.62 ± 5.30
RH10 -0.548 ± 0.058 -0.522 ± 0.060 0.654 ± 0.539 40.82 ± 3.89 223.62 ± 5.36
Average -0.691 -0.414 -0.003 1.161 212.147
Median -0.632 -0.382 -0.358 -20.984 221.872
Deviation 0.180 0.118 0.595 37.344 12.286

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 43.5 ± 0.8 260.5 ± 0.3 2.28 ± 0.08
VC 65.1 ± 0.8 210.5 ± 0.3 2.28 ± 0.08
MX1 44.0 ± 0.8 256.7 ± 0.3 2.28 ± 0.08
MX2 45.1 ± 0.8 257.0 ± 0.3 2.28 ± 0.08
MX3 53.3 ± 0.9 250.9 ± 0.3 2.28 ± 0.08
RH08 89.6 ± 1.2 95.5 ± 0.2 2.28 ± 0.08
RH09 83.2 ± 1.3 148.9 ± 0.2 2.28 ± 0.08
RH10 83.5 ± 1.3 146.5 ± 1.7 2.28 ± 0.08
Average 63.4 203.3 2.28
Median 65.1 250.9 2.28
Deviation 19.6 64.5 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 52.4 ± 0.7 6.9 ± 0.2 8.0 ± 0.3 17.3 ± 0.3 7.56 ± 0.26 3.03 ± 0.08
VC 56.6 ± 0.6 3.8 ± 0.1 4.6 ± 0.2 18.3 ± 0.3 14.87 ± 0.50 3.10 ± 0.08
MX1 52.8 ± 0.7 6.9 ± 0.2 7.9 ± 0.3 17.3 ± 0.3 7.69 ± 0.26 3.05 ± 0.08
MX2 53.0 ± 0.7 6.7 ± 0.2 7.8 ± 0.3 17.4 ± 0.3 7.89 ± 0.27 3.05 ± 0.08
MX3 54.5 ± 0.6 5.6 ± 0.2 6.6 ± 0.3 17.8 ± 0.3 9.81 ± 0.34 3.06 ± 0.08
RH8 1.5 ± 0.3 0.1 ± 0.0 0.1 ± 0.0 18.6 ± 0.3 25.81 ± 6.35 0.08 ± 0.02
RH9 17.4 ± 0.3 1.1 ± 0.0 1.3 ± 0.1 18.6 ± 0.3 16.54 ± 0.74 0.93 ± 0.04
RH10 16.6 ± 0.3 1.0 ± 0.0 1.2 ± 0.0 18.6 ± 0.3 16.59 ± 0.76 0.89 ± 0.03
Average 38.1 4.0 4.7 18.0 13.3 2.1
Median 52.8 5.6 6.6 18.3 14.9 3.0
Deviation 22.3 2.9 3.4 0.6 6.4 1.3

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 23.3 ± 1.5 6.8 ± 1.0 7.4 ± 1.3 20.1 ± 0.6 3.50 ± 0.48 1.16 ± 0.08
VC 25.1 ± 1.2 3.8 ± 0.6 4.3 ± 0.8 20.9 ± 0.8 6.77 ± 0.98 1.20 ± 0.06
MX1 23.4 ± 1.5 6.7 ± 1.0 7.3 ± 1.3 20.1 ± 0.6 3.55 ± 0.49 1.17 ± 0.08
MX2 23.5 ± 1.5 6.6 ± 1.0 7.2 ± 1.3 20.2 ± 0.6 3.64 ± 0.50 1.17 ± 0.08
MX3 24.2 ± 1.3 5.5 ± 0.8 6.1 ± 1.1 20.5 ± 0.7 4.49 ± 0.63 1.18 ± 0.07
RH8 0.6 ± 1.0 0.1 ± 0.0 0.1 ± 0.0 21.2 ± 0.8 10.70 ± 16.22 0.03 ± 0.05
RH9 7.6 ± 0.9 1.0 ± 0.1 1.2 ± 0.2 21.2 ± 0.8 7.42 ± 1.42 0.36 ± 0.05
RH10 7.3 ± 0.9 1.0 ± 0.1 1.1 ± 0.2 21.2 ± 0.8 7.45 ± 1.45 0.34 ± 0.05
Average 16.9 3.9 4.3 20.7 5.9 0.8
Median 23.4 5.5 6.1 20.9 6.8 1.2
Deviation 10.0 2.9 3.1 0.5 2.6 0.5

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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