CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20012241109
Observation time: 08/12/2001 224.46484 1109 [UT]

Wind spacecraft

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Asymptotic parameters
Shock front normals
Key parameters
Wave speed and Mach numbers
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Selected
Simple methods
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2001
Fractional day of year 224.464844
Arrival time of shock [seconds of day] 40162.5 ± 6.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 42.550
Y GSE location of spacecraft [Re] 288.393
Z GSE location of spacecraft [Re] 18.420
Upstream plasma points selected for analysis 0008
Upstream field points selected for analysis 0246
Downstream plasma points selected for analysis 0010
Downstream field points selected for analysis 0332
Minimum chisq/dof for RH8,RH9,RH10 6.91, 15.57, 15.85
Event added to database
Mon Feb 14 11:14:38 2005
Event last processed
Mon Mar 30 21:20:54 2009
Method selected
RH08
Propagation delay to Earth [minutes]
7.027 ± 2.015

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -321.9 ± 2.7 -384.4 ± 3.7
Vy GSE [km/s] 1.1 ± 3.4 -12.6 ± 4.8
Vz GSE [km/s] -1.0 ± 2.0 28.3 ± 3.4
Wi [km/s] 26.3 ± 1.8 34.3 ± 2.0
We [km/s] 831.1 ± 58.3 1083.1 ± 63.7
Ni [n/cc] 9.9 ± 0.3 24.1 ± 2.3
Bx GSE [nT] 3.2 ± 0.4 3.2 ± 1.1
By GSE [nT] -3.5 ± 0.4 -8.8 ± 1.9
Bz GSE [nT] 1.3 ± 0.6 5.5 ± 1.8
Plasma Beta
0.588 ± 0.542
0.480 ± 0.516
Sound Speed [km/s]
33.93 ± 2.38
44.22 ± 2.60
Alfven Speed [km/s]
34.45 ± 1.16
49.77 ± 2.51

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.938 ± 0.104 0.313 ± 0.294 0.149 ± 0.148 8.55 ± 14.43 161.56 ± 17.97
VC -0.889 ± 0.024 -0.193 ± 0.072 0.415 ± 0.390 24.53 ± 2.54 192.24 ± 4.64
MX1 -0.965 ± 0.025 0.174 ± 0.107 0.197 ± 0.195 11.37 ± 4.56 169.77 ± 6.36
MX2 -0.968 ± 0.021 0.143 ± 0.110 0.207 ± 0.204 11.94 ± 3.72 171.59 ± 6.52
MX3 -0.968 ± 0.024 0.127 ± 0.126 0.215 ± 0.211 12.39 ± 4.72 172.53 ± 7.47
RH08 -0.958 ± 0.003 0.025 ± 0.017 0.285 ± 0.277 16.55 ± 0.64 178.50 ± 1.04
RH09 -0.930 ± 0.024 0.367 ± 0.060 -0.006 ± 0.006 -0.32 ± 3.99 158.44 ± 3.70
RH10 -0.930 ± 0.024 0.367 ± 0.061 -0.006 ± 0.006 -0.32 ± 4.00 158.44 ± 3.74
Average -0.943 0.166 0.182 10.588 170.383
Median -0.938 0.174 0.207 11.938 171.591
Deviation 0.027 0.190 0.141 8.263 11.421

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 37.5 ± 7.9 402.3 ± 3.6 2.36 ± 0.13
VC 70.5 ± 7.9 406.1 ± 3.2 2.36 ± 0.13
MX1 45.5 ± 7.8 419.1 ± 3.2 2.36 ± 0.13
MX2 47.3 ± 7.8 421.8 ± 3.1 2.36 ± 0.13
MX3 48.3 ± 7.8 422.9 ± 3.1 2.36 ± 0.13
RH08 55.4 ± 7.8 424.3 ± 3.0 2.36 ± 0.13
RH09 29.8 ± 7.7 389.7 ± 3.4 2.36 ± 0.13
RH10 29.8 ± 7.7 389.7 ± 3.4 2.36 ± 0.13
Average 45.5 409.5 2.36
Median 47.3 419.1 2.36
Deviation 13.6 14.6 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 100.1 ± 1.8 21.3 ± 0.6 27.3 ± 0.9 43.4 ± 1.4 4.70 ± 0.09 2.30 ± 0.05
VC 120.6 ± 3.6 8.2 ± 0.2 11.5 ± 0.4 47.7 ± 1.5 14.73 ± 0.37 2.53 ± 0.07
MX1 108.6 ± 2.4 18.2 ± 0.5 24.1 ± 0.8 44.8 ± 1.4 5.96 ± 0.12 2.42 ± 0.06
MX2 110.3 ± 2.5 17.5 ± 0.5 23.4 ± 0.8 45.1 ± 1.4 6.29 ± 0.13 2.45 ± 0.06
MX3 111.2 ± 2.5 17.1 ± 0.5 22.9 ± 0.8 45.3 ± 1.4 6.49 ± 0.14 2.46 ± 0.06
RH8 116.1 ± 2.9 14.3 ± 0.4 19.6 ± 0.7 46.2 ± 1.5 8.10 ± 0.18 2.51 ± 0.06
RH9 89.9 ± 1.6 24.1 ± 0.7 29.9 ± 1.0 42.0 ± 1.4 3.73 ± 0.08 2.14 ± 0.05
RH10 89.9 ± 1.6 24.1 ± 0.7 29.9 ± 1.0 42.0 ± 1.4 3.73 ± 0.08 2.14 ± 0.05
Average 105.8 18.1 23.6 44.6 6.7 2.4
Median 110.3 18.2 24.1 45.1 6.3 2.4
Deviation 11.5 5.3 6.0 2.0 3.6 0.2

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 41.4 ± 3.8 29.1 ± 1.1 39.5 ± 2.0 60.0 ± 1.8 1.43 ± 0.17 0.69 ± 0.07
VC 50.2 ± 4.3 11.2 ± 0.4 16.6 ± 0.8 65.7 ± 2.0 4.50 ± 0.47 0.77 ± 0.07
MX1 44.9 ± 3.9 24.9 ± 0.9 34.9 ± 1.8 61.8 ± 1.8 1.81 ± 0.20 0.73 ± 0.07
MX2 45.8 ± 3.9 24.0 ± 0.9 33.7 ± 1.7 62.2 ± 1.8 1.92 ± 0.21 0.74 ± 0.07
MX3 46.2 ± 4.0 23.4 ± 0.9 33.1 ± 1.7 62.4 ± 1.9 1.98 ± 0.22 0.74 ± 0.07
RH8 48.2 ± 4.1 19.6 ± 0.7 28.3 ± 1.4 63.7 ± 1.9 2.47 ± 0.27 0.76 ± 0.07
RH9 37.0 ± 3.4 32.9 ± 1.3 43.2 ± 2.2 57.9 ± 1.7 1.13 ± 0.14 0.64 ± 0.06
RH10 37.0 ± 3.4 32.9 ± 1.3 43.2 ± 2.2 57.9 ± 1.7 1.13 ± 0.14 0.64 ± 0.06
Average 43.8 24.7 34.1 61.4 2.0 0.7
Median 45.8 24.9 34.9 62.2 1.9 0.7
Deviation 4.9 7.2 8.7 2.7 1.1 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 Mon Apr 13 08:55:21 2009
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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