CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20112780646
Observation time: 10/05/2011 278.28207 0646 [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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Selected
Simple methods
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2011
Fractional day of year 278.282066
Arrival time of shock [seconds of day] 24370.5 ± 20.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 232.708
Y GSE location of spacecraft [Re] 94.375
Z GSE location of spacecraft [Re] 8.346
Upstream plasma points selected for analysis 0004
Upstream field points selected for analysis 0102
Downstream plasma points selected for analysis 0002
Downstream field points selected for analysis 0056
Minimum chisq/dof for RH8,RH9,RH10 Infinity, -4316.00, -2177.05
Event added to database
Fri Sep 20 13:49:10 2013
Event last processed
Tue Sep 24 10:38:21 2013
Method selected
RH08
Propagation delay to Earth [minutes]
52.103 ± 112.495

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -390.6 ± 0.9 -430.9 ± 4.8
Vy GSE [km/s] 15.2 ± 5.8 -16.6 ± 10.7
Vz GSE [km/s] -20.1 ± 2.3 -6.2 ± 9.3
Wi [km/s] 36.5 ± 0.5 41.9 ± 2.2
We [km/s] 1152.8 ± 17.1 1324.2 ± 70.0
Ni [n/cc] 5.6 ± 0.2 8.7 ± 0.3
Bx GSE [nT] 2.7 ± 0.2 2.2 ± 0.4
By GSE [nT] -1.2 ± 0.4 4.8 ± 0.6
Bz GSE [nT] 3.7 ± 1.0 6.6 ± 0.8
Plasma Beta
0.705 ± 0.749
0.444 ± 0.497
Sound Speed [km/s]
47.06 ± 0.70
54.06 ± 2.86
Alfven Speed [km/s]
44.46 ± 6.48
63.07 ± 2.05

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.594 ± 0.103 0.293 ± 0.107 -0.749 ± 0.561 -48.51 ± 7.80 153.76 ± 9.31
VC -0.766 ± 0.115 -0.592 ± 0.146 0.253 ± 0.247 14.64 ± 7.20 217.69 ± 10.83
MX1 -0.753 ± 0.423 0.332 ± 0.529 -0.568 ± 0.497 -34.63 ± 39.58 156.22 ± 38.44
MX2 -0.685 ± 0.136 -0.347 ± 0.127 0.641 ± 0.534 39.86 ± 12.41 206.85 ± 9.24
MX3 -0.853 ± 0.069 -0.269 ± 0.094 0.447 ± 0.414 26.54 ± 8.38 197.52 ± 6.15
RH08 -0.080 ± 0.063 0.126 ± 0.052 -0.989 ± 0.212 -81.43 ± 2.50 122.34 ± 26.67
RH09 0.093 ± 0.070 -0.918 ± 0.028 -0.385 ± 0.365 -22.67 ± 4.03 275.77 ± 4.34
RH10 0.093 ± 0.070 -0.918 ± 0.028 -0.385 ± 0.365 -22.67 ± 4.03 275.77 ± 4.34
Average -0.443 -0.287 -0.217 -16.108 200.739
Median -0.594 -0.269 -0.385 -22.673 206.848
Deviation 0.406 0.505 0.592 40.783 55.970

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 6.3 ± 6.0 283.7 ± 10.3 1.61 ± 0.01
VC 84.6 ± 2.6 436.2 ± 7.9 1.61 ± 0.01
MX1 16.2 ± 7.9 360.5 ± 9.6 1.61 ± 0.01
MX2 79.3 ± 4.5 387.5 ± 8.1 1.61 ± 0.01
MX3 85.4 ± 4.7 458.4 ± 5.9 1.61 ± 0.01
RH08 33.1 ± 7.2 32.0 ± 9.5 1.61 ± 0.01
RH09 89.9 ± 7.8 14.9 ± 7.8 1.61 ± 0.01
RH10 89.9 ± 7.8 14.9 ± 20.5 1.61 ± 0.01
Average 60.6 248.5 1.61
Median 84.6 360.5 1.61
Deviation 35.7 195.8 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 32.1 ± 1.5 41.5 ± 2.8 44.2 ± 6.4 49.8 ± 3.2 0.78 ± 0.05 0.65 ± 0.03
VC 151.2 ± 2.7 3.0 ± 0.2 4.2 ± 0.6 64.8 ± 4.1 50.22 ± 3.92 2.34 ± 0.18
MX1 49.9 ± 1.8 38.1 ± 2.5 42.7 ± 6.2 52.6 ± 3.3 1.32 ± 0.06 0.95 ± 0.03
MX2 138.2 ± 1.5 6.0 ± 0.4 8.2 ± 1.2 64.6 ± 4.1 23.22 ± 1.53 2.14 ± 0.14
MX3 138.3 ± 1.2 2.6 ± 0.2 3.6 ± 0.5 64.8 ± 4.1 53.63 ± 3.46 2.14 ± 0.14
RH8 -21.0 ± 1.8 30.5 ± 2.0 37.2 ± 5.4 57.3 ± 3.6 -0.69 ± 0.05 -0.37 ± 0.03
RH9 57.2 ± 6.0 0.0 ± 0.0 0.1 ± 0.0 64.9 ± 4.1 1158.43 ± 186.98 0.89 ± 0.14
RH10 57.2 ± 6.0 0.0 ± 0.0 0.1 ± 0.0 64.9 ± 4.1 1158.43 ± 186.98 0.89 ± 0.14
Average 75.4 15.2 17.5 60.5 305.7 1.2
Median 57.2 6.0 8.2 64.8 50.2 1.0
Deviation 61.1 18.1 20.0 6.3 526.8 0.9

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 27.9 ± 12.9 52.8 ± 2.3 62.7 ± 2.0 64.1 ± 1.5 0.52 ± 0.22 0.44 ± 0.21
VC 98.0 ± 5.0 3.9 ± 0.1 5.9 ± 0.2 83.0 ± 0.3 25.41 ± 1.73 1.18 ± 0.06
MX1 38.1 ± 12.4 48.5 ± 1.5 60.6 ± 2.0 67.5 ± 0.7 0.78 ± 0.23 0.56 ± 0.19
MX2 90.6 ± 6.4 7.6 ± 0.1 11.7 ± 0.4 82.8 ± 0.3 11.89 ± 1.04 1.09 ± 0.08
MX3 89.1 ± 3.0 3.3 ± 0.1 5.1 ± 0.2 83.0 ± 0.3 26.98 ± 1.35 1.07 ± 0.04
RH8 -6.4 ± 10.9 38.9 ± 0.8 52.8 ± 1.7 73.5 ± 0.1 -0.17 ± 0.28 -0.09 ± 0.15
RH9 37.2 ± 6.6 0.1 ± 0.0 0.1 ± 0.0 83.1 ± 0.3 585.40 ± 114.29 0.45 ± 0.08
RH10 37.2 ± 6.6 0.1 ± 0.0 0.1 ± 0.0 83.1 ± 0.3 585.40 ± 114.29 0.45 ± 0.08
Average 51.5 19.4 24.9 77.5 154.5 0.6
Median 38.1 7.6 11.7 83.0 25.4 0.6
Deviation 37.0 23.1 28.4 8.0 266.2 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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