CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Ace Shock Analysis
Event ID: 20022001441
Observation time: 07/19/2002 200.61248 1441 [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 200.612477
Arrival time of shock [seconds of day] 52918.0 ± 16.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 0.039
Y GSE location of spacecraft [Re] -0.004
Z GSE location of spacecraft [Re] 0.004
Upstream plasma points selected for analysis 0010
Upstream field points selected for analysis 0043
Downstream plasma points selected for analysis 0009
Downstream field points selected for analysis 0036
Minimum chisq/dof for RH8,RH9,RH10 9.98, 15.47, 16.42
Event added to database
Sun May 1 22:29:28 2005
Event last processed
Tue May 3 14:29:19 2005
Method selected
RH08
Propagation delay to Earth [minutes]
0.005 ± 0.001

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -446.7 ± 4.0 -486.8 ± 5.8
Vy GSE [km/s] -14.5 ± 5.6 -94.0 ± 15.2
Vz GSE [km/s] -80.6 ± 2.9 -150.2 ± 7.3
Wi [km/s] 51.8 ± 1.8 77.4 ± 2.8
We [km/s] 1638.5 ± 57.4 2448.7 ± 87.9
Ni [n/cc] 3.8 ± 0.2 6.9 ± 1.2
Bx GSE [nT] -7.7 ± 0.2 -10.4 ± 1.1
By GSE [nT] -0.7 ± 0.7 -2.0 ± 3.6
Bz GSE [nT] 4.3 ± 0.4 8.0 ± 1.3
Plasma Beta
0.269 ± 0.281
0.464 ± 0.490
Sound Speed [km/s]
66.89 ± 2.34
99.97 ± 3.59
Alfven Speed [km/s]
100.09 ± 3.46
115.61 ± 13.08

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.988 ± 0.106 -0.153 ± 0.678 -0.032 ± 0.032 -1.82 ± 17.67 188.83 ± 39.34
VC -0.362 ± 0.090 -0.698 ± 0.069 -0.617 ± 0.523 -38.12 ± 5.46 242.58 ± 7.01
MX1 -0.439 ± 0.208 -0.718 ± 0.157 -0.540 ± 0.480 -32.67 ± 12.31 238.58 ± 15.92
MX2 -0.483 ± 0.155 -0.674 ± 0.131 -0.560 ± 0.492 -34.02 ± 10.33 234.39 ± 12.18
MX3 -0.507 ± 0.145 -0.632 ± 0.128 -0.586 ± 0.508 -35.91 ± 8.69 231.29 ± 12.10
RH08 -0.695 ± 0.009 -0.576 ± 0.011 -0.430 ± 0.401 -25.48 ± 0.59 219.61 ± 0.84
RH09 -0.876 ± 0.034 -0.382 ± 0.065 -0.296 ± 0.287 -17.22 ± 4.00 203.57 ± 4.24
RH10 -0.901 ± 0.031 -0.338 ± 0.066 -0.274 ± 0.267 -15.89 ± 4.01 200.56 ± 4.20
Average -0.656 -0.521 -0.417 -25.141 219.925
Median -0.507 -0.576 -0.430 -25.478 231.291
Deviation 0.241 0.206 0.203 12.605 20.035

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 31.1 ± 2.0 556.4 ± 48.6 1.83 ± 0.32
VC 85.6 ± 1.5 470.8 ± 64.2 1.83 ± 0.32
MX1 79.5 ± 1.6 496.2 ± 64.5 1.83 ± 0.32
MX2 78.1 ± 1.4 515.7 ± 65.9 1.83 ± 0.32
MX3 77.8 ± 1.2 527.1 ± 66.8 1.83 ± 0.32
RH08 63.5 ± 1.1 578.3 ± 66.0 1.83 ± 0.32
RH09 49.4 ± 1.1 604.6 ± 62.0 1.83 ± 0.32
RH10 47.2 ± 1.2 603.4 ± 60.8 1.83 ± 0.32
Average 64.0 544.1 1.83
Median 77.8 556.4 1.83
Deviation 19.6 49.7 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 110.5 ± 3.4 53.0 ± 1.6 85.7 ± 3.0 108.1 ± 3.1 2.09 ± 0.12 1.02 ± 0.04
VC 249.1 ± 3.2 4.2 ± 0.1 7.6 ± 0.3 120.3 ± 3.2 58.78 ± 1.20 2.07 ± 0.05
MX1 246.3 ± 3.1 10.1 ± 0.3 18.2 ± 0.6 120.0 ± 3.2 24.32 ± 0.51 2.05 ± 0.05
MX2 245.3 ± 2.8 11.5 ± 0.3 20.7 ± 0.7 119.9 ± 3.2 21.28 ± 0.46 2.05 ± 0.05
MX3 244.4 ± 2.5 11.8 ± 0.3 21.1 ± 0.7 119.8 ± 3.2 20.76 ± 0.46 2.04 ± 0.05
RH8 224.6 ± 2.1 25.3 ± 0.7 44.6 ± 1.5 117.7 ± 3.1 8.87 ± 0.22 1.91 ± 0.05
RH9 184.2 ± 2.2 38.1 ± 1.1 65.1 ± 2.2 114.2 ± 3.1 4.84 ± 0.16 1.61 ± 0.04
RH10 174.2 ± 2.4 40.0 ± 1.1 68.0 ± 2.3 113.6 ± 3.1 4.35 ± 0.15 1.53 ± 0.04
Average 209.8 24.3 41.4 116.7 18.2 1.8
Median 244.4 25.3 44.6 119.8 20.8 2.0
Deviation 49.8 17.7 28.7 4.4 18.6 0.4

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 56.5 ± 5.8 73.5 ± 3.2 99.0 ± 11.2 134.2 ± 10.0 0.77 ± 0.11 0.42 ± 0.06
VC 136.1 ± 10.6 5.7 ± 0.3 8.8 ± 1.0 153.0 ± 10.3 23.71 ± 1.71 0.89 ± 0.06
MX1 133.9 ± 10.7 13.7 ± 0.7 21.0 ± 2.4 152.4 ± 10.2 9.76 ± 0.75 0.88 ± 0.07
MX2 133.4 ± 10.1 15.6 ± 0.8 23.9 ± 2.7 152.3 ± 10.2 8.54 ± 0.64 0.88 ± 0.07
MX3 133.0 ± 9.5 16.0 ± 0.8 24.4 ± 2.8 152.2 ± 10.2 8.34 ± 0.60 0.88 ± 0.06
RH8 121.0 ± 8.7 34.4 ± 1.7 51.5 ± 5.8 149.1 ± 10.1 3.52 ± 0.28 0.81 ± 0.07
RH9 98.1 ± 6.6 52.1 ± 2.5 75.2 ± 8.5 143.9 ± 10.0 1.89 ± 0.17 0.68 ± 0.07
RH10 92.1 ± 6.2 54.8 ± 2.6 78.5 ± 8.9 142.9 ± 10.0 1.69 ± 0.16 0.65 ± 0.07
Average 113.0 33.2 47.8 147.5 7.3 0.8
Median 133.0 34.4 51.5 152.2 8.3 0.9
Deviation 28.5 24.5 33.1 6.7 7.5 0.2

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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