CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20020191528
Observation time: 01/19/2002 19.64457 1528 [UT]

Wind spacecraft

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Asymptotic parameters
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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 2002
Fractional day of year 19.644566
Arrival time of shock [seconds of day] 55690.5 ± 100.0
Shock type SF
Electron data availability 0
X GSE location of spacecraft [Re] 33.074
Y GSE location of spacecraft [Re] -314.976
Z GSE location of spacecraft [Re] 18.310
Upstream plasma points selected for analysis 0009
Upstream field points selected for analysis 0284
Downstream plasma points selected for analysis 0009
Downstream field points selected for analysis 0306
Minimum chisq/dof for RH8,RH9,RH10 5.05, 5.97, 6.27
Event added to database
Mon Feb 14 11:17:38 2005
Event last processed
Mon Mar 30 22:34:17 2009
Method selected
RH08
Propagation delay to Earth [minutes]
6.297 ± 2.072

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -386.4 ± 2.6 -408.8 ± 6.4
Vy GSE [km/s] 18.4 ± 4.4 18.5 ± 9.7
Vz GSE [km/s] -45.8 ± 4.8 -29.8 ± 4.5
Wi [km/s] 39.6 ± 1.9 51.7 ± 3.8
We [km/s] 1252.2 ± 61.5 1635.0 ± 119.8
Ni [n/cc] 5.8 ± 0.6 16.7 ± 2.3
Bx GSE [nT] -7.0 ± 0.5 3.3 ± 1.1
By GSE [nT] -0.1 ± 1.0 3.3 ± 1.8
Bz GSE [nT] 15.7 ± 0.2 -12.1 ± 0.8
Plasma Beta
0.064 ± 0.066
0.545 ± 0.577
Sound Speed [km/s]
51.12 ± 2.51
66.75 ± 4.89
Alfven Speed [km/s]
156.94 ± 10.61
70.59 ± 6.79

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.589 ± 0.251 0.802 ± 0.184 -0.098 ± 0.098 -5.63 ± 7.38 126.27 ± 17.90
VC -0.845 ± 0.096 -0.045 ± 0.371 0.533 ± 0.475 32.18 ± 10.08 183.04 ± 25.17
MX1 -0.950 ± 0.033 -0.035 ± 0.629 -0.310 ± 0.300 -18.05 ± 4.50 182.09 ± 37.93
MX2 -0.927 ± 0.099 0.229 ± 0.394 -0.298 ± 0.288 -17.31 ± 3.98 166.12 ± 24.36
MX3 -0.949 ± 0.040 0.060 ± 0.543 -0.310 ± 0.300 -18.06 ± 3.75 176.40 ± 32.80
RH08 -0.922 ± 0.003 -0.040 ± 0.023 -0.385 ± 0.365 -22.67 ± 0.36 182.51 ± 1.41
RH09 -0.922 ± 0.008 -0.040 ± 0.075 -0.385 ± 0.365 -22.67 ± 1.04 182.51 ± 4.66
RH10 -0.922 ± 0.009 -0.040 ± 0.079 -0.385 ± 0.365 -22.67 ± 1.24 182.51 ± 4.90
Average -0.878 0.111 -0.205 -11.861 172.681
Median -0.922 -0.035 -0.310 -18.050 182.507
Deviation 0.121 0.295 0.313 18.655 19.626

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 81.7 ± 3.4 263.5 ± 15.7 2.91 ± 0.31
VC 34.0 ± 1.1 345.1 ± 12.9 2.91 ± 0.31
MX1 84.1 ± 1.3 410.0 ± 9.3 2.91 ± 0.31
MX2 84.1 ± 2.1 404.7 ± 11.4 2.91 ± 0.31
MX3 84.2 ± 1.6 412.1 ± 10.0 2.91 ± 0.31
RH08 88.7 ± 1.3 399.4 ± 8.7 2.91 ± 0.31
RH09 88.7 ± 1.3 399.4 ± 8.7 2.91 ± 0.31
RH10 88.7 ± 1.3 399.4 ± 8.7 2.91 ± 0.31
Average 79.3 379.2 2.91
Median 84.2 399.4 2.91
Deviation 18.5 51.4 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 16.7 ± 3.5 7.0 ± 0.3 22.7 ± 1.5 164.9 ± 10.6 2.37 ± 0.48 0.10 ± 0.02
VC 43.8 ± 4.6 41.6 ± 2.0 130.1 ± 8.8 159.7 ± 10.6 1.06 ± 0.15 0.28 ± 0.04
MX1 29.3 ± 1.6 5.0 ± 0.2 16.1 ± 1.1 165.0 ± 10.6 5.91 ± 0.48 0.18 ± 0.02
MX2 28.7 ± 2.0 5.0 ± 0.2 16.1 ± 1.1 165.0 ± 10.6 5.77 ± 0.46 0.17 ± 0.01
MX3 30.2 ± 1.6 4.9 ± 0.2 15.9 ± 1.1 165.0 ± 10.6 6.17 ± 0.48 0.18 ± 0.02
RH8 26.3 ± 1.4 1.1 ± 0.1 3.4 ± 0.2 165.1 ± 10.6 24.80 ± 1.90 0.16 ± 0.01
RH9 26.3 ± 1.4 1.1 ± 0.1 3.4 ± 0.2 165.1 ± 10.6 24.80 ± 1.90 0.16 ± 0.01
RH10 26.3 ± 1.4 1.1 ± 0.1 3.4 ± 0.2 165.1 ± 10.6 24.80 ± 1.90 0.16 ± 0.01
Average 28.5 8.3 26.4 164.4 12.0 0.2
Median 28.7 5.0 16.1 165.0 6.2 0.2
Deviation 7.5 13.6 42.5 1.9 10.8 0.0

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 5.1 ± 10.3 7.0 ± 0.5 10.2 ± 1.0 97.0 ± 7.3 0.81 ± 1.57 0.06 ± 0.11
VC 16.4 ± 6.6 45.3 ± 3.4 58.5 ± 5.6 86.0 ± 6.6 0.37 ± 0.18 0.20 ± 0.10
MX1 13.0 ± 5.4 5.0 ± 0.4 7.2 ± 0.7 97.1 ± 7.3 2.69 ± 1.27 0.14 ± 0.07
MX2 12.7 ± 7.0 5.0 ± 0.4 7.2 ± 0.7 97.1 ± 7.3 2.64 ± 1.62 0.14 ± 0.08
MX3 13.9 ± 5.9 4.9 ± 0.4 7.1 ± 0.7 97.1 ± 7.3 2.92 ± 1.42 0.15 ± 0.07
RH8 11.8 ± 5.1 1.1 ± 0.1 1.5 ± 0.1 97.2 ± 7.4 11.43 ± 5.57 0.12 ± 0.06
RH9 11.8 ± 5.1 1.1 ± 0.1 1.5 ± 0.1 97.2 ± 7.4 11.43 ± 5.57 0.12 ± 0.06
RH10 11.8 ± 5.1 1.1 ± 0.1 1.5 ± 0.1 97.2 ± 7.4 11.43 ± 5.57 0.12 ± 0.06
Average 12.1 8.8 11.9 95.7 5.5 0.1
Median 12.7 5.0 7.2 97.1 2.9 0.1
Deviation 3.2 14.9 19.1 3.9 5.0 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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