CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20012430125
Observation time: 08/31/2001 243.05908 0125 [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 2001
Fractional day of year 243.059080
Arrival time of shock [seconds of day] 5104.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 23.006
Y GSE location of spacecraft [Re] 143.892
Z GSE location of spacecraft [Re] 6.280
Upstream plasma points selected for analysis 0006
Upstream field points selected for analysis 0207
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0258
Minimum chisq/dof for RH8,RH9,RH10 7.31, 10.36, 11.81
Event added to database
Mon Feb 14 11:15:04 2005
Event last processed
Mon Mar 30 21:31:06 2009
Method selected
RH08
Propagation delay to Earth [minutes]
16.669 ± 1.325

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -402.4 ± 1.1 -426.5 ± 2.9
Vy GSE [km/s] -43.3 ± 1.3 -45.0 ± 6.8
Vz GSE [km/s] -33.4 ± 2.2 -41.4 ± 4.8
Wi [km/s] 32.7 ± 1.0 34.1 ± 1.4
We [km/s] 1033.7 ± 32.8 1078.6 ± 44.0
Ni [n/cc] 3.2 ± 0.1 4.4 ± 0.2
Bx GSE [nT] 1.6 ± 0.1 2.4 ± 0.1
By GSE [nT] -2.7 ± 0.1 -3.4 ± 0.3
Bz GSE [nT] -4.0 ± 0.1 -5.5 ± 0.2
Plasma Beta
0.283 ± 0.280
0.227 ± 0.227
Sound Speed [km/s]
42.20 ± 1.34
44.03 ± 1.80
Alfven Speed [km/s]
61.45 ± 1.34
71.69 ± 1.73

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.836 ± 0.433 -0.514 ± 0.700 -0.195 ± 0.192 -11.22 ± 17.66 211.57 ± 47.95
VC -0.950 ± 0.049 -0.085 ± 0.220 -0.299 ± 0.290 -17.39 ± 8.70 185.10 ± 13.24
MX1 -0.925 ± 0.045 -0.130 ± 0.270 -0.356 ± 0.340 -20.85 ± 4.02 188.01 ± 16.72
MX2 -0.925 ± 0.045 -0.131 ± 0.266 -0.356 ± 0.340 -20.87 ± 4.07 188.09 ± 16.48
MX3 -0.924 ± 0.045 -0.134 ± 0.257 -0.357 ± 0.341 -20.91 ± 4.21 188.24 ± 15.93
RH08 -0.887 ± 0.018 -0.387 ± 0.038 -0.251 ± 0.246 -14.56 ± 1.54 203.57 ± 2.48
RH09 -0.859 ± 0.035 -0.468 ± 0.062 -0.207 ± 0.204 -11.93 ± 3.58 208.58 ± 4.09
RH10 -0.865 ± 0.035 -0.452 ± 0.063 -0.218 ± 0.214 -12.58 ± 3.93 207.58 ± 4.15
Average -0.897 -0.288 -0.280 -16.290 197.591
Median -0.887 -0.134 -0.251 -14.560 203.565
Deviation 0.041 0.183 0.071 4.240 11.194

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 80.3 ± 1.4 448.5 ± 13.6 1.39 ± 0.07
VC 89.3 ± 1.1 491.2 ± 24.0 1.39 ± 0.07
MX1 86.3 ± 1.1 484.1 ± 23.4 1.39 ± 0.07
MX2 86.2 ± 1.1 484.1 ± 23.4 1.39 ± 0.07
MX3 86.1 ± 1.1 484.0 ± 23.3 1.39 ± 0.07
RH08 82.5 ± 1.3 475.3 ± 16.8 1.39 ± 0.07
RH09 81.6 ± 1.4 459.0 ± 14.7 1.39 ± 0.07
RH10 81.7 ± 1.4 462.3 ± 15.1 1.39 ± 0.07
Average 84.3 473.6 1.39
Median 86.1 484.0 1.39
Deviation 3.2 15.2 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 83.5 ± 1.0 5.9 ± 0.2 10.3 ± 0.2 74.3 ± 1.6 14.22 ± 0.41 1.12 ± 0.03
VC 95.0 ± 0.5 0.4 ± 0.0 0.7 ± 0.0 74.5 ± 1.7 225.12 ± 6.04 1.27 ± 0.03
MX1 94.2 ± 0.5 2.3 ± 0.1 4.0 ± 0.1 74.5 ± 1.7 41.88 ± 1.10 1.26 ± 0.03
MX2 94.2 ± 0.5 2.3 ± 0.1 4.0 ± 0.1 74.5 ± 1.7 41.27 ± 1.08 1.26 ± 0.03
MX3 94.2 ± 0.5 2.4 ± 0.1 4.2 ± 0.1 74.5 ± 1.6 40.06 ± 1.05 1.26 ± 0.03
RH8 93.1 ± 0.8 4.5 ± 0.1 8.0 ± 0.2 74.4 ± 1.6 20.53 ± 0.57 1.25 ± 0.03
RH9 86.1 ± 0.9 5.1 ± 0.1 9.0 ± 0.2 74.4 ± 1.6 16.86 ± 0.48 1.16 ± 0.03
RH10 87.3 ± 0.9 5.1 ± 0.1 8.9 ± 0.2 74.4 ± 1.6 17.29 ± 0.49 1.17 ± 0.03
Average 90.9 3.5 6.1 74.4 52.2 1.2
Median 94.2 4.5 8.0 74.5 40.1 1.3
Deviation 4.6 1.9 3.4 0.1 70.9 0.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 60.9 ± 0.7 6.3 ± 0.2 12.1 ± 0.3 83.9 ± 1.7 9.63 ± 0.39 0.73 ± 0.02
VC 69.6 ± 3.3 0.5 ± 0.0 0.9 ± 0.0 84.1 ± 1.7 152.93 ± 7.74 0.83 ± 0.05
MX1 68.9 ± 3.1 2.4 ± 0.1 4.6 ± 0.1 84.1 ± 1.7 28.39 ± 1.36 0.82 ± 0.05
MX2 68.9 ± 3.1 2.5 ± 0.1 4.7 ± 0.1 84.1 ± 1.7 27.98 ± 1.34 0.82 ± 0.05
MX3 68.9 ± 3.1 2.5 ± 0.1 4.8 ± 0.1 84.1 ± 1.7 27.16 ± 1.30 0.82 ± 0.05
RH8 69.1 ± 1.0 4.9 ± 0.1 9.3 ± 0.2 84.0 ± 1.7 14.13 ± 0.49 0.82 ± 0.03
RH9 63.0 ± 0.6 5.5 ± 0.2 10.5 ± 0.3 84.0 ± 1.7 11.44 ± 0.43 0.75 ± 0.02
RH10 64.0 ± 0.6 5.4 ± 0.2 10.4 ± 0.3 84.0 ± 1.7 11.76 ± 0.43 0.76 ± 0.02
Average 66.7 3.8 7.2 84.0 35.4 0.8
Median 68.9 4.9 9.3 84.1 27.2 0.8
Deviation 3.4 2.1 3.9 0.1 48.2 0.0

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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