CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20010941439
Observation time: 04/04/2001 94.61095 1439 [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
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Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2001
Fractional day of year 94.610955
Arrival time of shock [seconds of day] 52786.5 ± 18.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 1.620
Y GSE location of spacecraft [Re] -252.783
Z GSE location of spacecraft [Re] 1.807
Upstream plasma points selected for analysis 0009
Upstream field points selected for analysis 0279
Downstream plasma points selected for analysis 0006
Downstream field points selected for analysis 0209
Minimum chisq/dof for RH8,RH9,RH10 11.38, 18.47, 20.05
Event added to database
Mon Feb 14 11:13:14 2005
Event last processed
Mon Mar 30 20:43:36 2009
Method selected
RH08
Propagation delay to Earth [minutes]
10.323 ± 2.238

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -491.6 ± 7.6 -675.2 ± 32.9
Vy GSE [km/s] -29.8 ± 9.8 77.8 ± 22.1
Vz GSE [km/s] 8.6 ± 6.6 80.8 ± 44.1
Wi [km/s] 41.9 ± 3.7 169.3 ± 19.7
We [km/s] 1326.2 ± 117.7 5353.5 ± 622.6
Ni [n/cc] 3.7 ± 0.7 7.3 ± 1.1
Bx GSE [nT] -3.9 ± 0.3 -3.7 ± 3.6
By GSE [nT] 5.6 ± 0.4 7.8 ± 2.4
Bz GSE [nT] -0.2 ± 0.3 -4.3 ± 3.7
Plasma Beta
0.304 ± 0.320
4.317 ± 5.149
Sound Speed [km/s]
54.14 ± 4.81
218.55 ± 25.42
Alfven Speed [km/s]
78.63 ± 10.71
86.84 ± 17.93

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.610 ± 0.096 0.782 ± 0.078 0.127 ± 0.127 7.31 ± 15.91 127.96 ± 6.82
VC -0.813 ± 0.071 0.477 ± 0.072 0.334 ± 0.321 19.48 ± 12.20 149.62 ± 4.38
MX1 -0.823 ± 0.291 0.516 ± 0.460 0.237 ± 0.233 13.73 ± 11.90 147.94 ± 32.00
MX2 -0.765 ± 0.091 0.612 ± 0.107 0.203 ± 0.200 11.72 ± 14.41 141.34 ± 7.69
MX3 -0.792 ± 0.090 0.567 ± 0.116 0.226 ± 0.223 13.09 ± 12.90 144.41 ± 8.12
RH08 -0.901 ± 0.006 0.338 ± 0.013 0.274 ± 0.267 15.89 ± 0.84 159.44 ± 0.80
RH09 -0.923 ± 0.027 0.292 ± 0.068 0.251 ± 0.246 14.56 ± 3.99 162.45 ± 4.20
RH10 -0.931 ± 0.026 0.276 ± 0.068 0.240 ± 0.235 13.90 ± 3.98 163.45 ± 4.17
Average -0.820 0.482 0.237 13.709 149.577
Median -0.813 0.516 0.240 13.900 149.618
Deviation 0.105 0.175 0.059 3.467 12.073

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 9.7 ± 1.7 681.7 ± 152.3 2.15 ± 0.71
VC 31.9 ± 1.3 834.2 ± 152.7 2.15 ± 0.71
MX1 27.2 ± 1.4 845.0 ± 155.4 2.15 ± 0.71
MX2 20.9 ± 1.2 804.7 ± 156.4 2.15 ± 0.71
MX3 24.1 ± 1.3 824.2 ± 156.1 2.15 ± 0.71
RH08 38.0 ± 1.6 876.5 ± 149.5 2.15 ± 0.71
RH09 40.2 ± 1.7 884.4 ± 147.7 2.15 ± 0.71
RH10 40.9 ± 1.8 886.6 ± 147.0 2.15 ± 0.71
Average 29.1 829.7 2.15
Median 31.9 845.0 2.15
Deviation 10.8 66.8 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 404.0 ± 9.5 52.5 ± 4.4 77.5 ± 10.6 79.8 ± 10.2 7.75 ± 0.69 5.14 ± 0.72
VC 445.7 ± 8.6 41.8 ± 2.9 66.8 ± 9.1 86.1 ± 8.9 10.72 ± 0.84 5.23 ± 0.59
MX1 453.6 ± 8.7 44.5 ± 3.2 69.9 ± 9.5 84.7 ± 9.1 10.25 ± 0.82 5.41 ± 0.63
MX2 445.4 ± 9.0 47.9 ± 3.6 73.5 ± 10.0 82.8 ± 9.4 9.36 ± 0.78 5.45 ± 0.68
MX3 449.8 ± 8.9 46.2 ± 3.4 71.8 ± 9.8 83.7 ± 9.2 9.78 ± 0.80 5.43 ± 0.65
RH8 441.5 ± 8.2 38.0 ± 2.6 62.0 ± 8.4 87.9 ± 8.7 11.68 ± 0.91 5.07 ± 0.55
RH9 437.3 ± 8.1 36.6 ± 2.4 60.1 ± 8.2 88.5 ± 8.6 12.01 ± 0.93 4.99 ± 0.53
RH10 435.3 ± 8.1 36.1 ± 2.4 59.5 ± 8.1 88.7 ± 8.6 12.11 ± 0.94 4.95 ± 0.53
Average 439.1 42.9 67.6 85.3 10.5 5.2
Median 445.4 44.5 69.9 86.1 10.7 5.2
Deviation 15.4 5.9 6.7 3.1 1.5 0.2

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 198.6 ± 28.3 85.3 ± 17.5 85.6 ± 17.7 219.2 ± 25.3 2.37 ± 0.30 0.92 ± 0.19
VC 221.0 ± 22.3 71.7 ± 13.9 73.8 ± 15.2 224.3 ± 24.4 3.16 ± 0.59 1.00 ± 0.17
MX1 229.8 ± 26.2 75.5 ± 14.9 77.2 ± 15.9 223.0 ± 24.6 3.11 ± 0.53 1.04 ± 0.19
MX2 224.5 ± 27.2 80.0 ± 16.0 81.1 ± 16.8 221.3 ± 24.9 2.87 ± 0.45 1.03 ± 0.19
MX3 227.0 ± 26.5 77.9 ± 15.5 79.3 ± 16.4 222.1 ± 24.8 2.98 ± 0.49 1.04 ± 0.19
RH8 220.0 ± 25.0 65.9 ± 12.6 68.4 ± 14.1 226.2 ± 24.2 3.42 ± 0.64 0.99 ± 0.18
RH9 218.3 ± 25.8 63.7 ± 12.1 66.4 ± 13.7 226.8 ± 24.2 3.51 ± 0.66 0.98 ± 0.18
RH10 217.4 ± 26.1 63.0 ± 11.9 65.7 ± 13.6 227.0 ± 24.2 3.53 ± 0.66 0.97 ± 0.18
Average 219.6 72.9 74.7 223.7 3.1 1.0
Median 221.0 75.5 77.2 224.3 3.2 1.0
Deviation 9.5 8.2 7.3 2.8 0.4 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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