CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20022752241
Observation time: 10/02/2002 275.94519 2241 [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 2002
Fractional day of year 275.945191
Arrival time of shock [seconds of day] 81664.5 ± 6.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 82.312
Y GSE location of spacecraft [Re] 37.434
Z GSE location of spacecraft [Re] 4.540
Upstream plasma points selected for analysis 0007
Upstream field points selected for analysis 0216
Downstream plasma points selected for analysis 0007
Downstream field points selected for analysis 0244
Minimum chisq/dof for RH8,RH9,RH10 10.06, 12.34, 12.77
Event added to database
Sat Mar 12 23:28:26 2005
Event last processed
Mon Mar 30 23:53:40 2009
Method selected
RH08
Propagation delay to Earth [minutes]
14.039 ± 0.836

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -454.9 ± 3.5 -510.7 ± 6.2
Vy GSE [km/s] 5.8 ± 5.3 -3.9 ± 6.1
Vz GSE [km/s] 10.1 ± 2.8 -23.8 ± 13.5
Wi [km/s] 26.2 ± 3.7 36.4 ± 2.8
We [km/s] 828.8 ± 115.8 1149.9 ± 87.3
Ni [n/cc] 3.1 ± 0.3 6.5 ± 0.6
Bx GSE [nT] -0.9 ± 0.8 0.7 ± 0.6
By GSE [nT] 1.7 ± 0.8 7.3 ± 0.3
Bz GSE [nT] -2.9 ± 0.4 0.9 ± 1.0
Plasma Beta
0.351 ± 0.335
0.326 ± 0.338
Sound Speed [km/s]
33.84 ± 4.73
46.95 ± 3.56
Alfven Speed [km/s]
45.13 ± 2.71
64.31 ± 4.13

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.376 ± 0.439 0.617 ± 0.352 -0.692 ± 0.552 -43.76 ± 23.97 121.34 ± 38.30
VC -0.851 ± 0.102 -0.147 ± 0.113 -0.504 ± 0.456 -30.24 ± 11.60 189.79 ± 7.49
MX1 -0.664 ± 0.710 0.594 ± 0.773 -0.455 ± 0.421 -27.09 ± 45.46 138.18 ± 63.38
MX2 -0.767 ± 0.081 0.505 ± 0.111 -0.396 ± 0.374 -23.33 ± 6.79 146.66 ± 8.07
MX3 -0.883 ± 0.067 0.413 ± 0.126 -0.221 ± 0.218 -12.80 ± 9.13 154.93 ± 8.15
RH08 -0.956 ± 0.005 0.230 ± 0.013 0.184 ± 0.182 10.62 ± 1.02 166.46 ± 0.80
RH09 -0.958 ± 0.020 0.249 ± 0.067 0.140 ± 0.139 8.03 ± 4.02 165.46 ± 4.01
RH10 -0.958 ± 0.020 0.249 ± 0.068 0.140 ± 0.139 8.03 ± 4.02 165.46 ± 4.07
Average -0.802 0.339 -0.226 -13.818 156.036
Median -0.851 0.413 -0.221 -12.796 165.460
Deviation 0.201 0.251 0.340 20.653 20.830

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 20.4 ± 6.6 242.5 ± 20.5 2.08 ± 0.29
VC 54.9 ± 16.3 511.8 ± 15.5 2.08 ± 0.29
MX1 35.9 ± 6.8 391.8 ± 18.1 2.08 ± 0.29
MX2 41.4 ± 8.1 447.1 ± 17.8 2.08 ± 0.29
MX3 53.4 ± 8.4 504.3 ± 17.5 2.08 ± 0.29
RH08 78.4 ± 7.9 527.2 ± 19.8 2.08 ± 0.29
RH09 75.7 ± 8.1 530.3 ± 19.3 2.08 ± 0.29
RH10 75.7 ± 8.1 530.3 ± 19.3 2.08 ± 0.29
Average 54.5 460.7 2.08
Median 54.9 511.8 2.08
Deviation 21.2 100.8 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 75.0 ± 3.2 29.6 ± 3.1 42.3 ± 2.5 48.2 ± 2.1 2.55 ± 0.21 1.56 ± 0.08
VC 130.4 ± 4.5 16.1 ± 1.3 25.9 ± 1.6 54.3 ± 2.3 8.16 ± 0.72 2.41 ± 0.08
MX1 91.1 ± 2.8 24.0 ± 2.1 36.6 ± 2.2 51.2 ± 2.1 3.81 ± 0.28 1.78 ± 0.06
MX2 99.2 ± 2.7 21.8 ± 1.9 33.8 ± 2.0 52.2 ± 2.2 4.57 ± 0.34 1.90 ± 0.05
MX3 102.3 ± 2.5 16.8 ± 1.4 26.9 ± 1.6 54.0 ± 2.3 6.14 ± 0.45 1.90 ± 0.05
RH8 89.3 ± 2.3 5.4 ± 0.4 9.1 ± 0.5 56.3 ± 2.4 16.50 ± 1.31 1.59 ± 0.06
RH9 91.4 ± 2.3 6.7 ± 0.5 11.2 ± 0.7 56.2 ± 2.4 13.75 ± 1.08 1.63 ± 0.06
RH10 91.4 ± 2.3 6.7 ± 0.5 11.2 ± 0.7 56.2 ± 2.4 13.75 ± 1.08 1.63 ± 0.06
Average 96.3 15.9 24.6 53.6 8.7 1.8
Median 91.4 16.8 26.9 54.3 8.2 1.8
Deviation 16.0 9.0 12.8 2.9 5.3 0.3

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 36.5 ± 8.3 41.6 ± 2.6 60.3 ± 3.9 68.0 ± 3.4 0.88 ± 0.20 0.54 ± 0.14
VC 64.4 ± 4.5 22.6 ± 1.2 36.9 ± 2.4 76.4 ± 3.3 2.85 ± 0.27 0.84 ± 0.08
MX1 44.4 ± 5.8 33.8 ± 1.9 52.1 ± 3.3 72.2 ± 3.3 1.32 ± 0.19 0.62 ± 0.10
MX2 47.8 ± 5.3 30.7 ± 1.7 48.2 ± 3.1 73.6 ± 3.3 1.56 ± 0.21 0.65 ± 0.10
MX3 49.5 ± 5.3 23.6 ± 1.2 38.4 ± 2.5 76.1 ± 3.3 2.11 ± 0.31 0.65 ± 0.09
RH8 44.5 ± 8.5 7.7 ± 0.4 13.0 ± 0.8 79.4 ± 3.4 5.85 ± 1.38 0.56 ± 0.12
RH9 45.0 ± 8.0 9.4 ± 0.5 15.9 ± 1.0 79.2 ± 3.4 4.82 ± 1.08 0.57 ± 0.12
RH10 45.0 ± 8.0 9.4 ± 0.5 15.9 ± 1.0 79.2 ± 3.4 4.82 ± 1.08 0.57 ± 0.12
Average 47.1 22.4 35.1 75.5 3.0 0.6
Median 45.0 23.6 38.4 76.4 2.9 0.6
Deviation 7.9 12.7 18.3 4.0 1.9 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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