CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Ace Shock Analysis
Event ID: 20023581314
Observation time: 12/24/2002 358.55183 1314 [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 358.551829
Arrival time of shock [seconds of day] 47678.0 ± 32.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 0.038
Y GSE location of spacecraft [Re] -0.000
Z GSE location of spacecraft [Re] 0.002
Upstream plasma points selected for analysis 0010
Upstream field points selected for analysis 0042
Downstream plasma points selected for analysis 0009
Downstream field points selected for analysis 0037
Minimum chisq/dof for RH8,RH9,RH10 11.83, 16.78, 17.11
Event added to database
Sun May 1 22:55:08 2005
Event last processed
Tue May 3 14:38:51 2005
Method selected
RH08
Propagation delay to Earth [minutes]
0.007 ± 0.001

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -481.4 ± 1.6 -512.1 ± 3.2
Vy GSE [km/s] -0.4 ± 3.7 -18.1 ± 5.5
Vz GSE [km/s] 9.6 ± 4.9 23.2 ± 7.7
Wi [km/s] 43.0 ± 1.7 53.7 ± 2.8
We [km/s] 1361.3 ± 54.7 1696.9 ± 89.5
Ni [n/cc] 5.5 ± 0.4 9.1 ± 1.2
Bx GSE [nT] -6.3 ± 0.1 -8.5 ± 0.2
By GSE [nT] 1.7 ± 0.4 5.5 ± 0.9
Bz GSE [nT] -1.2 ± 0.3 -3.3 ± 0.9
Plasma Beta
0.482 ± 0.478
0.480 ± 0.464
Sound Speed [km/s]
55.58 ± 2.23
69.28 ± 3.66
Alfven Speed [km/s]
62.21 ± 2.31
77.89 ± 4.45

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.903 ± 0.062 -0.396 ± 0.122 0.169 ± 0.168 9.74 ± 11.63 203.69 ± 7.67
VC -0.821 ± 0.094 -0.457 ± 0.125 0.344 ± 0.330 20.10 ± 12.89 209.10 ± 8.29
MX1 -0.892 ± 0.075 -0.371 ± 0.154 0.258 ± 0.252 14.94 ± 9.51 202.57 ± 9.83
MX2 -0.891 ± 0.077 -0.364 ± 0.159 0.272 ± 0.265 15.80 ± 9.43 202.20 ± 10.15
MX3 -0.890 ± 0.079 -0.356 ± 0.165 0.287 ± 0.279 16.67 ± 9.53 201.79 ± 10.58
RH08 -0.982 ± 0.003 -0.095 ± 0.009 0.162 ± 0.161 9.32 ± 0.85 185.52 ± 0.54
RH09 -0.982 ± 0.013 -0.077 ± 0.070 0.173 ± 0.171 9.97 ± 4.03 184.51 ± 4.10
RH10 -0.987 ± 0.011 -0.061 ± 0.070 0.151 ± 0.150 8.68 ± 4.03 183.51 ± 4.07
Average -0.918 -0.272 0.227 13.153 196.611
Median -0.892 -0.356 0.258 14.942 202.197
Deviation 0.060 0.164 0.072 4.265 10.287

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 43.2 ± 2.9 531.2 ± 78.9 1.68 ± 0.24
VC 52.8 ± 2.7 495.4 ± 73.1 1.68 ± 0.24
MX1 44.9 ± 2.7 527.7 ± 76.8 1.68 ± 0.24
MX2 45.0 ± 2.7 527.2 ± 76.4 1.68 ± 0.24
MX3 45.2 ± 2.7 526.5 ± 75.9 1.68 ± 0.24
RH08 28.3 ± 2.5 560.2 ± 76.7 1.68 ± 0.24
RH09 28.1 ± 2.4 559.4 ± 76.2 1.68 ± 0.24
RH10 26.5 ± 2.4 560.4 ± 76.2 1.68 ± 0.24
Average 39.3 536.0 1.68
Median 44.9 531.2 1.68
Deviation 10.0 22.8 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 95.0 ± 2.4 32.8 ± 0.9 45.3 ± 1.7 76.7 ± 2.0 2.90 ± 0.12 1.24 ± 0.05
VC 97.0 ± 2.8 26.4 ± 0.7 37.6 ± 1.4 79.2 ± 2.0 3.68 ± 0.15 1.23 ± 0.05
MX1 95.6 ± 2.4 31.7 ± 0.9 44.1 ± 1.6 77.2 ± 2.0 3.01 ± 0.12 1.24 ± 0.05
MX2 95.5 ± 2.4 31.6 ± 0.9 44.0 ± 1.6 77.2 ± 2.0 3.02 ± 0.12 1.24 ± 0.05
MX3 95.4 ± 2.4 31.5 ± 0.9 43.9 ± 1.6 77.3 ± 2.0 3.03 ± 0.12 1.24 ± 0.05
RH8 85.8 ± 1.6 42.3 ± 1.2 54.8 ± 2.0 72.0 ± 1.8 2.03 ± 0.08 1.19 ± 0.05
RH9 85.1 ± 1.6 42.4 ± 1.2 54.9 ± 2.0 71.9 ± 1.8 2.01 ± 0.08 1.18 ± 0.05
RH10 83.9 ± 1.5 43.4 ± 1.2 55.7 ± 2.1 71.3 ± 1.8 1.94 ± 0.08 1.18 ± 0.05
Average 91.7 35.3 47.5 75.3 2.7 1.2
Median 95.4 32.8 45.3 77.2 3.0 1.2
Deviation 5.6 6.4 6.7 3.1 0.6 0.0

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 57.9 ± 4.7 40.9 ± 1.7 56.8 ± 3.2 95.9 ± 3.8 1.42 ± 0.11 0.60 ± 0.05
VC 59.0 ± 5.4 32.9 ± 1.3 47.0 ± 2.7 99.0 ± 4.0 1.79 ± 0.14 0.60 ± 0.05
MX1 58.1 ± 4.8 39.6 ± 1.6 55.2 ± 3.2 96.5 ± 3.9 1.47 ± 0.11 0.60 ± 0.04
MX2 58.0 ± 4.9 39.5 ± 1.6 55.1 ± 3.1 96.6 ± 3.9 1.47 ± 0.11 0.60 ± 0.04
MX3 57.8 ± 4.9 39.3 ± 1.6 54.9 ± 3.1 96.6 ± 3.9 1.47 ± 0.11 0.60 ± 0.04
RH8 51.7 ± 3.7 52.7 ± 2.2 68.6 ± 3.9 90.0 ± 3.6 0.98 ± 0.07 0.57 ± 0.04
RH9 51.2 ± 3.7 52.9 ± 2.2 68.7 ± 3.9 89.9 ± 3.6 0.97 ± 0.07 0.57 ± 0.04
RH10 50.5 ± 3.6 54.1 ± 2.2 69.7 ± 4.0 89.2 ± 3.6 0.93 ± 0.07 0.57 ± 0.04
Average 55.5 44.0 59.5 94.2 1.3 0.6
Median 57.9 40.9 56.8 96.5 1.5 0.6
Deviation 3.7 8.0 8.4 3.8 0.3 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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