CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20112152059
Observation time: 08/03/2011 215.87491 2059 [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
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2011
Fractional day of year 215.874913
Arrival time of shock [seconds of day] 75592.5 ± 60.0
Shock type NN
Electron data availability 0
X GSE location of spacecraft [Re] 202.775
Y GSE location of spacecraft [Re] -31.103
Z GSE location of spacecraft [Re] -18.019
Upstream plasma points selected for analysis 0003
Upstream field points selected for analysis 0096
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0099
Minimum chisq/dof for RH8,RH9,RH10 5.90, Infinity,-25641.94
Event added to database
Fri Sep 20 13:27:47 2013
Event last processed
Tue Sep 24 10:23:36 2013
Method selected
RH08
Propagation delay to Earth [minutes]
22.037 ± 10.473

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -351.1 ± 1.4 -388.1 ± 1.2
Vy GSE [km/s] -7.9 ± 1.6 3.5 ± 0.5
Vz GSE [km/s] -11.3 ± 1.9 10.8 ± 1.1
Wi [km/s] 24.7 ± 1.7 22.3 ± 0.1
We [km/s] 781.8 ± 55.3 704.7 ± 2.5
Ni [n/cc] 3.0 ± 0.1 3.9 ± 0.1
Bx GSE [nT] 2.3 ± 0.1 -1.3 ± 0.1
By GSE [nT] -1.3 ± 0.0 -0.3 ± 0.1
Bz GSE [nT] -0.4 ± 0.1 2.4 ± 0.3
Plasma Beta
0.567 ± 0.636
0.556 ± 0.513
Sound Speed [km/s]
31.92 ± 2.26
28.77 ± 0.10
Alfven Speed [km/s]
33.25 ± 2.40
30.23 ± 3.13

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.371 ± 0.062 0.603 ± 0.040 -0.706 ± 0.555 -44.94 ± 1.28 121.62 ± 5.85
VC -0.830 ± 0.013 0.257 ± 0.022 0.495 ± 0.450 29.70 ± 1.30 162.82 ± 1.48
MX1 -0.344 ± 0.070 0.642 ± 0.053 -0.685 ± 0.550 -43.23 ± 3.69 118.21 ± 6.00
MX2 -0.393 ± 0.082 0.574 ± 0.057 -0.719 ± 0.558 -45.96 ± 1.23 124.39 ± 8.12
MX3 -0.681 ± 0.306 0.267 ± 0.520 -0.682 ± 0.549 -43.00 ± 20.91 158.63 ± 43.09
RH08 -0.280 ± 0.066 -0.959 ± 0.019 -0.028 ± 0.028 -1.60 ± 4.06 253.70 ± 3.91
RH09 -0.185 ± 0.030 0.101 ± 0.018 -0.978 ± 0.286 -77.86 ± 2.00 151.42 ± 2.00
RH10 -0.490 ± 0.061 0.716 ± 0.049 0.497 ± 0.451 29.82 ± 4.03 124.35 ± 4.65
Average -0.447 0.275 -0.351 -24.636 151.892
Median -0.371 0.574 -0.682 -42.997 151.421
Deviation 0.213 0.545 0.587 39.335 44.875

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 59.2 ± 1.0 157.1 ± 1.3 1.27 ± 0.07
VC 24.4 ± 1.0 491.0 ± 8.1 1.27 ± 0.07
MX1 59.2 ± 1.0 146.8 ± 1.3 1.27 ± 0.07
MX2 59.0 ± 1.0 165.9 ± 1.4 1.27 ± 0.07
MX3 51.8 ± 0.8 306.6 ± 2.9 1.27 ± 0.07
RH08 76.6 ± 1.0 102.0 ± 1.2 1.27 ± 0.07
RH09 86.2 ± 0.8 9.1 ± 2.7 1.27 ± 0.07
RH10 32.6 ± 0.7 336.8 ± 18.4 1.27 ± 0.07
Average 56.1 214.4 1.27
Median 59.2 165.9 1.27
Deviation 20.5 153.5 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 23.6 ± 0.3 12.2 ± 0.1 17.0 ± 1.2 44.5 ± 0.4 1.94 ± 0.03 0.53 ± 0.00
VC 207.3 ± 2.4 24.7 ± 0.4 30.3 ± 2.2 39.0 ± 0.6 8.39 ± 0.22 5.31 ± 0.04
MX1 23.2 ± 0.3 12.1 ± 0.1 17.0 ± 1.2 44.5 ± 0.4 1.91 ± 0.03 0.52 ± 0.00
MX2 24.5 ± 0.3 12.2 ± 0.1 17.1 ± 1.2 44.5 ± 0.4 2.00 ± 0.02 0.55 ± 0.00
MX3 61.8 ± 0.5 15.0 ± 0.1 20.5 ± 1.5 43.7 ± 0.4 4.13 ± 0.03 1.42 ± 0.01
RH8 -4.4 ± 1.2 5.3 ± 0.0 7.7 ± 0.6 45.9 ± 0.4 -0.83 ± 0.24 -0.10 ± 0.03
RH9 -66.0 ± 1.5 1.5 ± 0.0 2.2 ± 0.2 46.1 ± 0.4 -42.92 ± 1.32 -1.43 ± 0.03
RH10 176.2 ± 2.7 22.0 ± 0.3 28.0 ± 2.0 40.6 ± 0.5 8.03 ± 0.22 4.34 ± 0.04
Average 55.8 13.1 17.5 43.6 -2.2 1.4
Median 24.5 12.2 17.1 44.5 2.0 0.5
Deviation 91.8 7.7 9.4 2.5 16.8 2.3

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 18.6 ± 0.7 11.0 ± 0.5 15.5 ± 1.6 40.3 ± 2.1 1.68 ± 0.07 0.46 ± 0.02
VC 162.7 ± 1.5 22.4 ± 1.1 27.5 ± 2.8 35.2 ± 1.9 7.26 ± 0.41 4.63 ± 0.29
MX1 18.2 ± 0.7 11.0 ± 0.5 15.5 ± 1.6 40.3 ± 2.1 1.66 ± 0.07 0.45 ± 0.02
MX2 19.3 ± 0.7 11.1 ± 0.5 15.6 ± 1.6 40.3 ± 2.1 1.74 ± 0.07 0.48 ± 0.02
MX3 48.7 ± 0.8 13.6 ± 0.7 18.7 ± 1.9 39.5 ± 2.1 3.59 ± 0.17 1.23 ± 0.06
RH8 -3.2 ± 0.1 4.8 ± 0.2 7.0 ± 0.7 41.5 ± 2.2 -0.66 ± 0.05 -0.08 ± 0.01
RH9 -52.4 ± 0.9 1.4 ± 0.1 2.0 ± 0.2 41.7 ± 2.2 -37.62 ± 2.57 -1.26 ± 0.09
RH10 138.9 ± 1.3 19.9 ± 1.0 25.5 ± 2.6 36.7 ± 2.0 6.98 ± 0.40 3.79 ± 0.24
Average 43.9 11.9 15.9 39.4 -1.9 1.2
Median 19.3 11.1 15.6 40.3 1.7 0.5
Deviation 72.3 7.0 8.5 2.3 14.7 2.0

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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