CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20012720929
Observation time: 09/29/2001 272.39543 0929 [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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Selected
Simple methods
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2001
Fractional day of year 272.395434
Arrival time of shock [seconds of day] 34165.5 ± 6.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 67.945
Y GSE location of spacecraft [Re] -10.025
Z GSE location of spacecraft [Re] 6.205
Upstream plasma points selected for analysis 0007
Upstream field points selected for analysis 0213
Downstream plasma points selected for analysis 0009
Downstream field points selected for analysis 0286
Minimum chisq/dof for RH8,RH9,RH10 2.78, 5.64, 5.80
Event added to database
Mon Feb 14 11:15:34 2005
Event last processed
Mon Mar 30 21:41:58 2009
Method selected
RH08
Propagation delay to Earth [minutes]
9.713 ± 0.434

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -531.8 ± 7.5 -662.9 ± 17.0
Vy GSE [km/s] 35.4 ± 4.3 26.4 ± 37.2
Vz GSE [km/s] 8.4 ± 10.6 33.2 ± 17.1
Wi [km/s] 57.6 ± 6.4 85.6 ± 9.4
We [km/s] 1822.7 ± 203.8 2707.7 ± 296.2
Ni [n/cc] 2.4 ± 0.6 6.3 ± 0.5
Bx GSE [nT] -3.4 ± 0.2 -0.3 ± 2.6
By GSE [nT] -2.7 ± 0.6 -0.8 ± 9.4
Bz GSE [nT] -1.5 ± 0.8 -0.9 ± 2.8
Plasma Beta
0.798 ± 0.940
2.852 ± 0.833
Sound Speed [km/s]
74.41 ± 8.32
110.54 ± 12.09
Alfven Speed [km/s]
68.36 ± 11.59
80.78 ± 25.13

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.944 ± 0.144 0.190 ± 0.475 -0.269 ± 0.262 -15.59 ± 23.59 168.65 ± 28.79
VC -0.984 ± 0.024 -0.036 ± 0.261 0.177 ± 0.175 10.21 ± 7.20 182.11 ± 15.19
MX1 -0.906 ± 0.209 0.245 ± 0.491 0.346 ± 0.331 20.21 ± 27.74 164.86 ± 30.94
MX2 -0.952 ± 0.106 0.241 ± 0.392 0.189 ± 0.186 10.87 ± 11.59 165.80 ± 23.60
MX3 -0.937 ± 0.095 0.193 ± 0.340 0.290 ± 0.282 16.88 ± 12.97 168.34 ± 20.79
RH08 -0.989 ± 0.004 0.131 ± 0.027 0.073 ± 0.072 4.16 ± 1.04 172.48 ± 1.56
RH09 -0.952 ± 0.021 0.301 ± 0.066 0.061 ± 0.061 3.52 ± 4.03 162.45 ± 3.95
RH10 -0.952 ± 0.021 0.301 ± 0.066 0.061 ± 0.061 3.52 ± 4.03 162.45 ± 3.95
Average -0.952 0.196 0.116 6.723 168.393
Median -0.952 0.241 0.177 10.207 168.342
Deviation 0.026 0.110 0.188 10.952 6.489

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 48.4 ± 6.3 705.3 ± 28.8 2.81 ± 0.83
VC 47.4 ± 5.0 745.1 ± 37.3 2.81 ± 0.83
MX1 66.2 ± 5.1 707.1 ± 28.2 2.81 ± 0.83
MX2 60.7 ± 4.6 728.8 ± 28.6 2.81 ± 0.83
MX3 61.7 ± 4.9 722.4 ± 29.6 2.81 ± 0.83
RH08 51.8 ± 4.4 746.8 ± 31.5 2.81 ± 0.83
RH09 60.2 ± 4.7 725.1 ± 27.5 2.81 ± 0.83
RH10 60.2 ± 4.7 725.1 ± 27.5 2.81 ± 0.83
Average 57.1 725.7 2.81
Median 60.2 725.1 2.81
Deviation 6.9 15.1 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 198.6 ± 8.1 34.7 ± 1.5 45.4 ± 7.7 95.7 ± 3.3 5.72 ± 0.21 2.07 ± 0.06
VC 221.8 ± 7.5 35.5 ± 1.5 46.3 ± 7.9 95.5 ± 3.3 6.25 ± 0.28 2.32 ± 0.05
MX1 213.8 ± 6.9 20.2 ± 0.8 27.6 ± 4.7 99.8 ± 3.4 10.58 ± 0.46 2.14 ± 0.06
MX2 212.3 ± 6.9 24.8 ± 1.0 33.5 ± 5.7 98.8 ± 3.4 8.56 ± 0.34 2.15 ± 0.05
MX3 214.7 ± 7.0 24.0 ± 1.0 32.4 ± 5.5 99.0 ± 3.4 8.97 ± 0.39 2.17 ± 0.05
RH8 215.7 ± 7.3 32.0 ± 1.3 42.3 ± 7.2 96.7 ± 3.3 6.75 ± 0.27 2.23 ± 0.05
RH9 207.9 ± 6.9 25.2 ± 1.0 33.9 ± 5.8 98.7 ± 3.4 8.27 ± 0.31 2.11 ± 0.05
RH10 207.9 ± 6.9 25.2 ± 1.0 33.9 ± 5.8 98.7 ± 3.4 8.27 ± 0.31 2.11 ± 0.05
Average 211.6 27.7 36.9 97.9 7.9 2.2
Median 213.8 25.2 33.9 98.7 8.3 2.2
Deviation 6.9 5.6 6.8 1.6 1.6 0.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 83.1 ± 11.8 43.8 ± 11.5 53.7 ± 16.7 131.8 ± 5.9 2.15 ± 1.13 0.63 ± 0.09
VC 88.1 ± 18.5 44.8 ± 11.8 54.7 ± 17.0 131.4 ± 5.8 2.22 ± 1.20 0.67 ± 0.14
MX1 88.6 ± 10.5 25.6 ± 6.6 32.6 ± 10.1 136.8 ± 6.7 3.90 ± 1.98 0.65 ± 0.07
MX2 85.0 ± 10.2 31.4 ± 8.1 39.6 ± 12.3 135.5 ± 6.5 3.05 ± 1.55 0.63 ± 0.07
MX3 86.3 ± 11.6 30.3 ± 7.8 38.3 ± 11.9 135.7 ± 6.5 3.21 ± 1.64 0.64 ± 0.08
RH8 85.4 ± 13.1 40.4 ± 10.6 49.9 ± 15.5 132.9 ± 6.0 2.38 ± 1.24 0.64 ± 0.10
RH9 84.2 ± 9.0 31.8 ± 8.2 40.1 ± 12.5 135.4 ± 6.4 2.98 ± 1.51 0.62 ± 0.07
RH10 84.2 ± 9.0 31.8 ± 8.2 40.1 ± 12.5 135.4 ± 6.4 2.98 ± 1.51 0.62 ± 0.07
Average 85.6 35.0 43.6 134.4 2.9 0.6
Median 85.4 31.8 40.1 135.4 3.0 0.6
Deviation 1.9 7.1 8.1 2.0 0.6 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 Mon Apr 13 08:55:21 2009
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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