CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20113621016
Observation time: 12/28/2011 362.42786 1016 [UT]

Wind spacecraft

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Asymptotic parameters
Shock front normals
Key parameters
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 362.427865
Arrival time of shock [seconds of day] 36967.5 ± 20.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 213.343
Y GSE location of spacecraft [Re] -96.466
Z GSE location of spacecraft [Re] 3.000
Upstream plasma points selected for analysis 0004
Upstream field points selected for analysis 0133
Downstream plasma points selected for analysis 0004
Downstream field points selected for analysis 0121
Minimum chisq/dof for RH8,RH9,RH10 16.99, 75.53, 131.58
Event added to database
Fri Sep 20 14:09:16 2013
Event last processed
Mon Oct 7 13:19:57 2013
Method selected
RH08
Propagation delay to Earth [minutes]
113.206 ± 39.256

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -252.7 ± 0.4 -271.1 ± 1.1
Vy GSE [km/s] -12.4 ± 1.1 -23.8 ± 0.9
Vz GSE [km/s] 2.2 ± 0.3 10.0 ± 0.7
Wi [km/s] 14.6 ± 0.2 17.4 ± 0.3
We [km/s] 462.8 ± 5.9 550.7 ± 10.2
Ni [n/cc] 18.7 ± 0.5 30.0 ± 0.7
Bx GSE [nT] -2.8 ± 0.1 -3.3 ± 0.1
By GSE [nT] 3.7 ± 0.3 6.6 ± 0.2
Bz GSE [nT] 1.2 ± 0.2 2.7 ± 0.3
Plasma Beta
0.369 ± 0.378
0.309 ± 0.325
Sound Speed [km/s]
18.89 ± 0.24
22.48 ± 0.42
Alfven Speed [km/s]
24.12 ± 0.76
31.37 ± 1.17

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.976 ± 0.021 -0.046 ± 0.076 -0.214 ± 0.211 -12.37 ± 5.48 182.69 ± 4.46
VC -0.798 ± 0.034 -0.498 ± 0.053 0.339 ± 0.326 19.84 ± 2.18 211.96 ± 3.75
MX1 -0.875 ± 0.023 -0.311 ± 0.056 0.371 ± 0.353 21.77 ± 1.90 199.59 ± 3.64
MX2 -0.859 ± 0.022 -0.322 ± 0.052 0.397 ± 0.375 23.40 ± 1.74 200.54 ± 3.46
MX3 -0.839 ± 0.025 -0.335 ± 0.050 0.429 ± 0.401 25.41 ± 2.13 201.76 ± 3.36
RH08 -0.569 ± 0.015 0.236 ± 0.015 -0.788 ± 0.559 -51.97 ± 1.11 157.44 ± 1.34
RH09 -0.221 ± 0.065 -0.377 ± 0.057 0.899 ± 0.489 64.08 ± 3.35 239.67 ± 8.95
RH10 -0.972 ± 0.016 -0.043 ± 0.071 -0.229 ± 0.225 -13.24 ± 3.97 182.51 ± 4.17
Average -0.764 -0.212 0.151 9.615 197.019
Median -0.839 -0.311 0.371 21.771 200.543
Deviation 0.253 0.240 0.527 34.759 24.102

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 61.0 ± 3.8 291.7 ± 0.6 1.60 ± 0.05
VC 79.7 ± 2.3 269.5 ± 0.6 1.60 ± 0.05
MX1 68.0 ± 2.3 285.7 ± 0.7 1.60 ± 0.05
MX2 68.7 ± 2.2 282.1 ± 0.7 1.60 ± 0.05
MX3 69.5 ± 2.1 277.1 ± 0.7 1.60 ± 0.05
RH08 71.9 ± 3.2 144.1 ± 0.6 1.60 ± 0.05
RH09 85.7 ± 0.9 103.7 ± 0.7 1.60 ± 0.05
RH10 61.2 ± 3.8 290.3 ± 2.5 1.60 ± 0.05
Average 70.7 243.0 1.60
Median 69.5 282.1 1.60
Deviation 8.5 74.7 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 45.1 ± 0.5 7.4 ± 0.1 11.7 ± 0.4 29.7 ± 0.7 6.07 ± 0.16 1.52 ± 0.05
VC 61.0 ± 0.6 2.7 ± 0.1 4.3 ± 0.1 30.5 ± 0.7 22.91 ± 0.67 2.00 ± 0.07
MX1 60.0 ± 0.5 5.7 ± 0.1 9.0 ± 0.3 30.1 ± 0.7 10.59 ± 0.28 1.99 ± 0.06
MX2 60.1 ± 0.5 5.5 ± 0.1 8.8 ± 0.3 30.1 ± 0.7 10.92 ± 0.29 1.99 ± 0.06
MX3 60.1 ± 0.4 5.3 ± 0.1 8.4 ± 0.3 30.2 ± 0.7 11.36 ± 0.30 1.99 ± 0.06
RH8 5.0 ± 0.4 4.7 ± 0.1 7.5 ± 0.2 30.3 ± 0.7 1.08 ± 0.09 0.17 ± 0.01
RH9 41.2 ± 0.3 1.1 ± 0.0 1.8 ± 0.1 30.6 ± 0.7 36.61 ± 0.89 1.35 ± 0.04
RH10 44.5 ± 0.5 7.4 ± 0.1 11.6 ± 0.4 29.7 ± 0.7 6.03 ± 0.16 1.50 ± 0.05
Average 47.1 5.0 7.9 30.2 13.2 1.6
Median 60.0 5.5 8.8 30.2 10.9 2.0
Deviation 18.9 2.2 3.4 0.3 11.4 0.6

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 28.3 ± 1.1 9.1 ± 0.1 15.2 ± 0.6 37.5 ± 0.8 3.10 ± 0.13 0.75 ± 0.02
VC 37.9 ± 0.5 3.3 ± 0.0 5.6 ± 0.2 38.5 ± 0.8 11.60 ± 0.21 0.99 ± 0.02
MX1 37.4 ± 0.7 7.0 ± 0.1 11.7 ± 0.4 38.0 ± 0.8 5.39 ± 0.12 0.99 ± 0.01
MX2 37.5 ± 0.7 6.7 ± 0.1 11.4 ± 0.4 38.0 ± 0.8 5.55 ± 0.12 0.99 ± 0.01
MX3 37.4 ± 0.7 6.5 ± 0.1 11.0 ± 0.4 38.1 ± 0.8 5.77 ± 0.12 0.98 ± 0.01
RH8 3.4 ± 0.9 5.8 ± 0.1 9.8 ± 0.4 38.2 ± 0.8 0.60 ± 0.17 0.09 ± 0.02
RH9 25.8 ± 0.5 1.4 ± 0.0 2.4 ± 0.1 38.6 ± 0.8 18.66 ± 0.22 0.67 ± 0.02
RH10 27.9 ± 1.1 9.1 ± 0.1 15.1 ± 0.6 37.5 ± 0.8 3.09 ± 0.13 0.74 ± 0.02
Average 29.5 6.1 10.3 38.0 6.7 0.8
Median 37.4 6.7 11.4 38.1 5.6 1.0
Deviation 11.7 2.7 4.4 0.4 5.8 0.3

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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