CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Ace Shock Analysis
Event ID: 20022501608
Observation time: 09/07/2002 250.67274 1608 [UT]

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Asymptotic parameters
Shock front normals
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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 2002
Fractional day of year 250.672743
Arrival time of shock [seconds of day] 58125.0 ± 16.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 0.036
Y GSE location of spacecraft [Re] -0.004
Z GSE location of spacecraft [Re] 0.000
Upstream plasma points selected for analysis 0008
Upstream field points selected for analysis 0034
Downstream plasma points selected for analysis 0011
Downstream field points selected for analysis 0044
Minimum chisq/dof for RH8,RH9,RH10 9.61, 16.28, 16.74
Event added to database
Sun May 1 22:40:39 2005
Event last processed
Tue May 3 14:34:51 2005
Method selected
RH08
Propagation delay to Earth [minutes]
0.006 ± 0.000

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -385.4 ± 1.8 -548.0 ± 13.0
Vy GSE [km/s] -20.8 ± 1.9 -89.9 ± 20.6
Vz GSE [km/s] 11.4 ± 1.5 9.8 ± 6.3
Wi [km/s] 11.4 ± 1.1 54.8 ± 6.3
We [km/s] 359.2 ± 35.3 1734.1 ± 200.0
Ni [n/cc] 3.5 ± 0.5 12.9 ± 0.7
Bx GSE [nT] 1.3 ± 0.1 2.8 ± 1.0
By GSE [nT] -0.6 ± 0.5 -0.2 ± 1.1
Bz GSE [nT] -8.5 ± 0.3 -25.3 ± 0.3
Plasma Beta
0.013 ± 0.012
0.128 ± 0.125
Sound Speed [km/s]
14.66 ± 1.44
70.79 ± 8.17
Alfven Speed [km/s]
100.95 ± 7.31
154.77 ± 5.31

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.994 ± 0.108 0.104 ± 1.030 -0.032 ± 0.032 -1.84 ± 4.16 174.01 ± 59.39
VC -0.923 ± 0.032 -0.385 ± 0.078 -0.012 ± 0.012 -0.70 ± 2.19 202.62 ± 4.81
MX1 -0.915 ± 0.034 -0.393 ± 0.079 -0.091 ± 0.091 -5.23 ± 3.38 203.23 ± 4.93
MX2 -0.918 ± 0.033 -0.386 ± 0.078 -0.091 ± 0.091 -5.21 ± 3.37 202.82 ± 4.86
MX3 -0.919 ± 0.033 -0.383 ± 0.078 -0.091 ± 0.090 -5.20 ± 3.37 202.61 ± 4.84
RH08 -0.973 ± 0.004 -0.216 ± 0.017 -0.084 ± 0.084 -4.81 ± 0.00 192.53 ± 1.00
RH09 -0.973 ± 0.017 -0.216 ± 0.071 -0.084 ± 0.084 -4.81 ± 3.38 192.53 ± 4.19
RH10 -0.973 ± 0.016 -0.216 ± 0.071 -0.084 ± 0.084 -4.81 ± 3.48 192.53 ± 4.15
Average -0.948 -0.261 -0.071 -4.074 195.362
Median -0.923 -0.216 -0.084 -4.807 202.613
Deviation 0.032 0.170 0.031 1.770 10.020

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 82.7 ± 0.9 595.0 ± 19.3 3.63 ± 0.47
VC 84.2 ± 2.1 610.7 ± 27.4 3.63 ± 0.47
MX1 88.8 ± 2.1 606.3 ± 27.0 3.63 ± 0.47
MX2 88.7 ± 2.1 607.2 ± 26.9 3.63 ± 0.47
MX3 88.7 ± 2.1 607.7 ± 26.9 3.63 ± 0.47
RH08 87.2 ± 1.7 621.4 ± 24.4 3.63 ± 0.47
RH09 87.2 ± 1.7 621.4 ± 24.4 3.63 ± 0.47
RH10 87.2 ± 1.7 621.4 ± 24.4 3.63 ± 0.47
Average 86.8 611.4 3.63
Median 87.2 610.7 3.63
Deviation 2.2 9.5 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 214.4 ± 1.8 1.8 ± 0.2 12.7 ± 0.9 102.0 ± 7.1 118.11 ± 11.58 2.11 ± 0.15
VC 247.1 ± 1.7 1.5 ± 0.1 10.2 ± 0.7 102.0 ± 7.1 170.71 ± 16.17 2.43 ± 0.18
MX1 246.4 ± 1.6 0.3 ± 0.0 2.1 ± 0.2 102.0 ± 7.1 812.76 ± 77.17 2.43 ± 0.18
MX2 246.5 ± 1.6 0.3 ± 0.0 2.2 ± 0.2 102.0 ± 7.1 771.42 ± 73.27 2.43 ± 0.18
MX3 246.5 ± 1.6 0.3 ± 0.0 2.3 ± 0.2 102.0 ± 7.1 751.59 ± 71.40 2.43 ± 0.18
RH8 242.9 ± 1.7 0.7 ± 0.1 5.0 ± 0.4 102.0 ± 7.1 341.78 ± 32.81 2.39 ± 0.17
RH9 242.9 ± 1.7 0.7 ± 0.1 5.0 ± 0.4 102.0 ± 7.1 341.78 ± 32.81 2.39 ± 0.17
RH10 242.9 ± 1.7 0.7 ± 0.1 5.0 ± 0.4 102.0 ± 7.1 341.78 ± 32.81 2.39 ± 0.17
Average 241.2 0.8 5.6 102.0 456.2 2.4
Median 246.4 0.7 5.0 102.0 341.8 2.4
Deviation 11.0 0.6 3.9 0.0 280.0 0.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 59.9 ± 11.3 8.1 ± 0.8 19.5 ± 0.7 170.2 ± 5.0 7.51 ± 1.96 0.35 ± 0.07
VC 70.4 ± 18.6 6.5 ± 0.6 15.6 ± 0.5 170.3 ± 5.0 11.14 ± 3.79 0.41 ± 0.11
MX1 70.4 ± 18.2 1.4 ± 0.1 3.3 ± 0.1 170.4 ± 5.0 53.13 ± 17.77 0.41 ± 0.11
MX2 70.4 ± 18.1 1.4 ± 0.1 3.4 ± 0.1 170.4 ± 5.0 50.44 ± 16.81 0.41 ± 0.11
MX3 70.4 ± 18.1 1.5 ± 0.1 3.5 ± 0.1 170.4 ± 5.0 49.14 ± 16.35 0.41 ± 0.11
RH8 69.7 ± 15.8 3.2 ± 0.3 7.6 ± 0.3 170.4 ± 5.0 22.40 ± 6.78 0.41 ± 0.10
RH9 69.7 ± 15.8 3.2 ± 0.3 7.6 ± 0.3 170.4 ± 5.0 22.40 ± 6.78 0.41 ± 0.10
RH10 69.7 ± 15.8 3.2 ± 0.3 7.6 ± 0.3 170.4 ± 5.0 22.40 ± 6.78 0.41 ± 0.10
Average 68.8 3.5 8.5 170.3 29.8 0.4
Median 70.4 3.2 7.6 170.4 22.4 0.4
Deviation 3.6 2.5 6.0 0.1 18.3 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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