CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20010971756
Observation time: 04/07/2001 97.74790 1756 [UT]

Wind spacecraft

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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 97.747899
Arrival time of shock [seconds of day] 64618.5 ± 12.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 2.600
Y GSE location of spacecraft [Re] -258.067
Z GSE location of spacecraft [Re] 0.793
Upstream plasma points selected for analysis 0007
Upstream field points selected for analysis 0214
Downstream plasma points selected for analysis 0006
Downstream field points selected for analysis 0207
Minimum chisq/dof for RH8,RH9,RH10 25.71, 29.24, 30.60
Event added to database
Mon Feb 14 11:13:17 2005
Event last processed
Mon Mar 30 20:45:15 2009
Method selected
RH08
Propagation delay to Earth [minutes]
-26.007 ± 1.324

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -457.4 ± 3.4 -591.8 ± 6.3
Vy GSE [km/s] -38.5 ± 3.4 -47.2 ± 8.7
Vz GSE [km/s] -19.1 ± 3.2 -6.4 ± 13.7
Wi [km/s] 38.8 ± 2.3 72.2 ± 6.1
We [km/s] 1226.2 ± 73.2 2282.6 ± 193.8
Ni [n/cc] 3.3 ± 0.3 10.4 ± 0.7
Bx GSE [nT] 3.0 ± 0.2 -3.8 ± 1.6
By GSE [nT] -4.2 ± 0.3 7.7 ± 1.1
Bz GSE [nT] 0.5 ± 0.5 -7.4 ± 0.7
Plasma Beta
0.399 ± 0.356
0.946 ± 0.882
Sound Speed [km/s]
50.06 ± 2.99
93.19 ± 7.91
Alfven Speed [km/s]
62.84 ± 5.82
77.42 ± 9.45

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.448 ± 0.126 0.346 ± 0.146 0.824 ± 0.549 55.51 ± 6.26 142.35 ± 17.24
VC -0.994 ± 0.010 -0.063 ± 0.060 0.095 ± 0.094 5.42 ± 5.59 183.63 ± 3.48
MX1 -0.898 ± 0.031 -0.412 ± 0.059 0.151 ± 0.150 8.68 ± 6.40 204.65 ± 3.70
MX2 -0.899 ± 0.039 -0.297 ± 0.036 0.323 ± 0.311 18.83 ± 6.90 198.30 ± 2.16
MX3 -0.902 ± 0.033 -0.330 ± 0.041 0.277 ± 0.270 16.10 ± 6.61 200.09 ± 2.51
RH08 -0.805 ± 0.006 -0.556 ± 0.008 0.207 ± 0.204 11.93 ± 0.75 214.60 ± 0.55
RH09 -0.805 ± 0.028 -0.556 ± 0.040 0.207 ± 0.204 11.93 ± 2.65 214.60 ± 2.79
RH10 -0.805 ± 0.033 -0.556 ± 0.046 0.207 ± 0.204 11.93 ± 2.99 214.60 ± 3.26
Average -0.820 -0.303 0.286 17.541 196.601
Median -0.805 -0.330 0.207 11.929 204.646
Deviation 0.164 0.312 0.228 15.881 24.386

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 63.1 ± 5.4 273.2 ± 15.1 3.24 ± 0.33
VC 59.3 ± 1.8 656.5 ± 14.2 3.24 ± 0.33
MX1 80.4 ± 1.7 609.5 ± 15.1 3.24 ± 0.33
MX2 76.0 ± 2.2 604.3 ± 14.9 3.24 ± 0.33
MX3 77.1 ± 2.0 608.7 ± 15.0 3.24 ± 0.33
RH08 89.6 ± 1.7 553.9 ± 15.3 3.24 ± 0.33
RH09 89.6 ± 1.7 553.9 ± 15.3 3.24 ± 0.33
RH10 89.6 ± 1.7 553.9 ± 15.3 3.24 ± 0.33
Average 78.1 551.8 3.24
Median 80.4 604.3 3.24
Deviation 11.8 118.3 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 97.2 ± 3.5 18.1 ± 0.6 28.4 ± 2.6 78.5 ± 3.2 5.39 ± 0.29 1.24 ± 0.07
VC 201.4 ± 3.6 20.5 ± 0.6 32.0 ± 3.0 77.9 ± 3.2 9.83 ± 0.23 2.59 ± 0.09
MX1 185.6 ± 3.9 6.5 ± 0.2 10.5 ± 1.0 80.2 ± 3.2 28.38 ± 0.61 2.31 ± 0.06
MX2 188.0 ± 3.9 9.5 ± 0.3 15.2 ± 1.4 79.9 ± 3.2 19.79 ± 0.50 2.35 ± 0.07
MX3 188.5 ± 3.9 8.7 ± 0.3 14.0 ± 1.3 80.0 ± 3.2 21.61 ± 0.52 2.36 ± 0.07
RH8 168.1 ± 4.0 0.3 ± 0.0 0.5 ± 0.0 80.5 ± 3.2 594.37 ± 13.03 2.09 ± 0.05
RH9 168.1 ± 4.0 0.3 ± 0.0 0.5 ± 0.0 80.5 ± 3.2 594.37 ± 13.03 2.09 ± 0.05
RH10 168.1 ± 4.0 0.3 ± 0.0 0.5 ± 0.0 80.5 ± 3.2 594.37 ± 13.03 2.09 ± 0.05
Average 170.6 8.0 12.7 79.8 233.5 2.1
Median 185.6 8.7 14.0 80.2 28.4 2.3
Deviation 32.1 7.9 12.4 1.0 298.9 0.4

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 29.6 ± 9.3 27.3 ± 1.7 35.0 ± 4.3 118.5 ± 3.2 1.10 ± 0.39 0.25 ± 0.08
VC 66.2 ± 6.0 31.0 ± 1.9 39.5 ± 4.8 117.6 ± 3.1 2.13 ± 0.14 0.56 ± 0.06
MX1 59.3 ± 7.9 9.9 ± 0.6 13.0 ± 1.6 121.2 ± 3.2 5.98 ± 0.63 0.49 ± 0.07
MX2 60.5 ± 7.1 14.4 ± 0.8 18.8 ± 2.3 120.8 ± 3.2 4.21 ± 0.41 0.50 ± 0.07
MX3 60.9 ± 7.3 13.2 ± 0.8 17.3 ± 2.1 120.9 ± 3.2 4.61 ± 0.45 0.50 ± 0.07
RH8 52.4 ± 8.6 0.4 ± 0.0 0.6 ± 0.1 121.6 ± 3.2 122.09 ± 16.86 0.43 ± 0.07
RH9 52.4 ± 8.6 0.4 ± 0.0 0.6 ± 0.1 121.6 ± 3.2 122.09 ± 16.86 0.43 ± 0.07
RH10 52.4 ± 8.6 0.4 ± 0.0 0.6 ± 0.1 121.6 ± 3.2 122.09 ± 16.86 0.43 ± 0.07
Average 54.2 12.1 15.7 120.5 48.0 0.5
Median 59.3 13.2 17.3 121.2 6.0 0.5
Deviation 11.2 12.0 15.3 1.6 61.3 0.1

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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