CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20122871609
Observation time: 10/13/2012 287.67307 1609 [UT]

Wind spacecraft

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Wave speed and Mach numbers
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Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2012
Fractional day of year 287.673073
Arrival time of shock [seconds of day] 58153.5 ± 20.0
Shock type FR
Electron data availability 0
X GSE location of spacecraft [Re] 253.702
Y GSE location of spacecraft [Re] 52.908
Z GSE location of spacecraft [Re] 17.853
Upstream plasma points selected for analysis 0003
Upstream field points selected for analysis 0099
Downstream plasma points selected for analysis 0002
Downstream field points selected for analysis 0093
Minimum chisq/dof for RH8,RH9,RH10 -225.61, -169.92, -131.56
Event added to database
Tue Oct 8 15:58:20 2013
Event last processed
Tue Oct 8 17:35:28 2013
Method selected
RH08
Propagation delay to Earth [minutes]
65.206 ± 5533.260

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -533.5 ± 3.1 -589.7 ± 1.9
Vy GSE [km/s] -17.9 ± 0.5 -17.6 ± 3.7
Vz GSE [km/s] -11.6 ± 6.4 -14.5 ± 1.4
Wi [km/s] 60.2 ± 3.2 48.6 ± 0.1
We [km/s] 1904.2 ± 100.6 1536.3 ± 3.1
Ni [n/cc] 5.5 ± 0.2 3.3 ± 0.1
Bx GSE [nT] 0.8 ± 0.6 0.8 ± 0.3
By GSE [nT] 5.3 ± 0.6 3.5 ± 0.4
Bz GSE [nT] -7.4 ± 1.0 -4.8 ± 0.2
Plasma Beta
0.502 ± 0.514
0.457 ± 0.468
Sound Speed [km/s]
77.74 ± 4.11
62.72 ± 0.13
Alfven Speed [km/s]
85.66 ± 5.16
71.88 ± 1.34

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.985 ± 0.142 -0.150 ± 0.886 0.082 ± 0.082 4.69 ± 31.53 188.64 ± 51.53
VC -0.999 ± 0.005 0.005 ± 0.052 -0.048 ± 0.048 -2.73 ± 5.83 179.74 ± 3.00
MX1 -1.000 ± 0.003 -0.019 ± 0.164 0.001 ± 0.001 0.07 ± 6.70 181.08 ± 9.38
MX2 -1.000 ± 0.003 -0.022 ± 0.155 0.000 ± 0.000 0.02 ± 7.32 181.25 ± 8.87
MX3 -1.000 ± 0.003 -0.016 ± 0.184 0.001 ± 0.001 0.06 ± 5.57 180.90 ± 10.54
RH08 -0.057 ± 0.070 0.613 ± 0.055 -0.788 ± 0.559 -51.97 ± 3.95 95.26 ± 6.51
RH09 -0.049 ± 0.023 0.655 ± 0.026 -0.754 ± 0.561 -48.95 ± 2.00 94.26 ± 2.00
RH10 -0.055 ± 0.021 0.599 ± 0.028 -0.799 ± 0.557 -53.02 ± 2.00 95.26 ± 2.00
Average -0.643 0.208 -0.288 -18.979 149.550
Median -0.985 0.005 0.000 0.023 180.900
Deviation 0.488 0.347 0.409 26.878 45.311

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 76.0 ± 4.1 446.2 ± 6.8 0.59 ± 0.03
VC 87.2 ± 3.9 450.8 ± 7.8 0.59 ± 0.03
MX1 84.1 ± 3.8 451.3 ± 7.5 0.59 ± 0.03
MX2 84.1 ± 3.9 451.3 ± 7.5 0.59 ± 0.03
MX3 84.2 ± 3.8 451.3 ± 7.5 0.59 ± 0.03
RH08 10.2 ± 4.1 21.7 ± 5.7 0.59 ± 0.03
RH09 10.9 ± 4.4 17.3 ± 5.5 0.59 ± 0.03
RH10 9.9 ± 4.0 21.4 ± 13.0 0.59 ± 0.03
Average 55.8 288.9 0.59
Median 84.1 450.8 0.59
Deviation 37.8 222.6 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -81.3 ± 2.6 14.0 ± 0.2 20.7 ± 1.2 114.9 ± 2.3 -5.83 ± 0.28 -0.71 ± 0.04
VC -82.5 ± 3.4 2.8 ± 0.0 4.2 ± 0.3 115.8 ± 2.3 -29.23 ± 1.66 -0.71 ± 0.04
MX1 -82.4 ± 3.1 5.9 ± 0.1 8.8 ± 0.5 115.6 ± 2.3 -14.04 ± 0.75 -0.71 ± 0.04
MX2 -82.5 ± 3.1 5.9 ± 0.1 8.8 ± 0.5 115.6 ± 2.3 -13.91 ± 0.74 -0.71 ± 0.04
MX3 -82.4 ± 3.1 5.8 ± 0.1 8.6 ± 0.5 115.6 ± 2.3 -14.32 ± 0.76 -0.71 ± 0.04
RH8 -6.6 ± 4.9 72.6 ± 1.8 84.3 ± 5.1 90.2 ± 3.4 -0.09 ± 0.07 -0.07 ± 0.06
RH9 -5.7 ± 4.6 72.1 ± 1.7 84.1 ± 5.1 90.6 ± 3.3 -0.08 ± 0.07 -0.06 ± 0.05
RH10 -6.6 ± 5.0 72.7 ± 1.9 84.4 ± 5.1 90.0 ± 3.4 -0.09 ± 0.07 -0.07 ± 0.06
Average -53.8 31.5 38.0 106.1 -9.7 -0.5
Median -81.3 14.0 20.7 115.6 -5.8 -0.7
Deviation 39.3 34.1 38.6 13.1 10.2 0.3

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -136.3 ± 1.2 11.5 ± 0.1 17.3 ± 0.3 94.7 ± 1.1 -11.87 ± 0.21 -1.44 ± 0.03
VC -138.8 ± 1.9 2.3 ± 0.0 3.5 ± 0.1 95.4 ± 1.1 -59.67 ± 1.39 -1.46 ± 0.04
MX1 -138.6 ± 1.8 4.8 ± 0.0 7.3 ± 0.1 95.3 ± 1.1 -28.66 ± 0.63 -1.45 ± 0.04
MX2 -138.6 ± 1.8 4.9 ± 0.0 7.4 ± 0.1 95.3 ± 1.1 -28.39 ± 0.63 -1.45 ± 0.04
MX3 -138.6 ± 1.8 4.7 ± 0.0 7.2 ± 0.1 95.3 ± 1.1 -29.22 ± 0.65 -1.45 ± 0.04
RH8 -12.3 ± 3.5 59.5 ± 0.3 70.8 ± 1.3 74.5 ± 1.1 -0.21 ± 0.06 -0.17 ± 0.05
RH9 -10.9 ± 3.6 59.1 ± 0.3 70.6 ± 1.3 74.8 ± 1.1 -0.18 ± 0.06 -0.15 ± 0.05
RH10 -12.3 ± 3.5 59.7 ± 0.3 70.8 ± 1.3 74.4 ± 1.2 -0.21 ± 0.06 -0.16 ± 0.05
Average -90.8 25.8 31.9 87.5 -19.8 -1.0
Median -136.3 11.5 17.3 95.3 -11.9 -1.4
Deviation 65.4 28.0 32.4 10.6 20.9 0.7

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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