CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Ace Shock Analysis
Event ID: 20140500307
Observation time: 02/19/2014 50.13053 0307 [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 2014
Fractional day of year 50.130533
Arrival time of shock [seconds of day] 11278.1 ± 60.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 231.405
Y GSE location of spacecraft [Re] -39.884
Z GSE location of spacecraft [Re] -10.341
Upstream plasma points selected for analysis 0006
Upstream field points selected for analysis 0006
Downstream plasma points selected for analysis 0009
Downstream field points selected for analysis 0010
Minimum chisq/dof for RH8,RH9,RH10 17.61, 28.00, 29.06
Event added to database
Fri Oct 10 15:10:42 2014
Event last processed
Tue Oct 14 16:25:20 2014
Method selected
RH08
Propagation delay to Earth [minutes]
40.051 ± 3.909

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -382.7 ± 3.4 -470.5 ± 2.9
Vy GSE [km/s] -15.6 ± 3.2 -23.0 ± 6.6
Vz GSE [km/s] 13.9 ± 4.0 -16.4 ± 1.4
Wi [km/s] 17.3 ± 0.8 27.2 ± 1.0
We [km/s] 548.2 ± 26.7 861.5 ± 31.7
Ni [n/cc] 1.8 ± 0.1 3.5 ± 0.3
Bx GSE [nT] 2.8 ± 0.2 5.5 ± 0.4
By GSE [nT] -4.2 ± 0.2 -4.3 ± 1.0
Bz GSE [nT] -6.7 ± 0.1 -13.6 ± 0.5
Plasma Beta
0.016 ± 0.016
0.023 ± 0.022
Sound Speed [km/s]
22.38 ± 1.09
35.17 ± 1.29
Alfven Speed [km/s]
136.99 ± 4.88
180.30 ± 8.54

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -1.000 ± 0.011 0.007 ± 1.447 0.028 ± 0.028 1.59 ± 5.44 179.58 ± 82.95
VC -0.943 ± 0.016 -0.080 ± 0.076 -0.324 ± 0.312 -18.93 ± 2.58 184.85 ± 4.63
MX1 -0.928 ± 0.021 -0.103 ± 0.107 -0.358 ± 0.341 -20.95 ± 2.69 186.36 ± 6.60
MX2 -0.928 ± 0.020 -0.095 ± 0.094 -0.359 ± 0.343 -21.04 ± 2.76 185.85 ± 5.80
MX3 -0.929 ± 0.019 -0.087 ± 0.083 -0.360 ± 0.344 -21.12 ± 2.83 185.34 ± 5.11
RH08 -0.936 ± 0.003 -0.124 ± 0.014 -0.330 ± 0.317 -19.25 ± 0.37 187.52 ± 0.84
RH09 -0.936 ± 0.025 -0.124 ± 0.070 -0.330 ± 0.317 -19.25 ± 4.00 187.52 ± 4.29
RH10 -0.936 ± 0.025 -0.124 ± 0.070 -0.330 ± 0.317 -19.25 ± 4.00 187.52 ± 4.29
Average -0.942 -0.091 -0.295 -17.273 185.568
Median -0.936 -0.095 -0.330 -19.245 186.360
Deviation 0.024 0.043 0.131 7.679 2.635

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 69.1 ± 1.3 564.5 ± 3.6 1.87 ± 0.19
VC 89.3 ± 1.3 552.2 ± 3.9 1.87 ± 0.19
MX1 88.2 ± 1.3 546.4 ± 3.9 1.87 ± 0.19
MX2 88.4 ± 1.3 546.4 ± 3.9 1.87 ± 0.19
MX3 88.6 ± 1.3 546.4 ± 3.9 1.87 ± 0.19
RH08 89.1 ± 1.3 550.1 ± 3.8 1.87 ± 0.19
RH09 89.1 ± 1.3 550.1 ± 3.8 1.87 ± 0.19
RH10 89.1 ± 1.3 550.1 ± 28.0 1.87 ± 0.19
Average 86.4 550.8 1.87
Median 89.1 550.1 1.87
Deviation 7.0 6.0 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 181.7 ± 3.4 7.9 ± 0.4 48.8 ± 1.7 138.6 ± 4.8 23.10 ± 1.14 1.31 ± 0.04
VC 194.8 ± 2.9 0.3 ± 0.0 1.7 ± 0.1 138.8 ± 4.8 724.27 ± 38.26 1.40 ± 0.04
MX1 194.5 ± 2.8 0.7 ± 0.0 4.2 ± 0.2 138.8 ± 4.8 286.51 ± 15.21 1.40 ± 0.04
MX2 194.5 ± 2.8 0.6 ± 0.0 3.8 ± 0.1 138.8 ± 4.8 318.83 ± 16.95 1.40 ± 0.04
MX3 194.5 ± 2.8 0.5 ± 0.0 3.4 ± 0.1 138.8 ± 4.8 360.04 ± 19.18 1.40 ± 0.04
RH8 194.5 ± 2.9 0.4 ± 0.0 2.2 ± 0.1 138.8 ± 4.8 550.88 ± 28.92 1.40 ± 0.04
RH9 194.5 ± 2.9 0.4 ± 0.0 2.2 ± 0.1 138.8 ± 4.8 550.88 ± 28.92 1.40 ± 0.04
RH10 194.5 ± 2.9 0.4 ± 0.0 2.2 ± 0.1 138.8 ± 4.8 550.88 ± 28.92 1.40 ± 0.04
Average 192.9 1.4 8.6 138.8 420.7 1.4
Median 194.5 0.5 3.4 138.8 550.9 1.4
Deviation 4.5 2.6 16.3 0.1 218.2 0.0

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 94.8 ± 2.9 12.3 ± 0.4 64.2 ± 3.0 183.3 ± 8.5 7.70 ± 0.37 0.52 ± 0.03
VC 101.6 ± 2.8 0.4 ± 0.0 2.2 ± 0.1 183.7 ± 8.5 241.52 ± 11.24 0.55 ± 0.03
MX1 101.4 ± 2.7 1.1 ± 0.0 5.6 ± 0.3 183.7 ± 8.5 95.50 ± 4.45 0.55 ± 0.03
MX2 101.4 ± 2.7 1.0 ± 0.0 5.0 ± 0.2 183.7 ± 8.5 106.28 ± 4.95 0.55 ± 0.03
MX3 101.5 ± 2.8 0.8 ± 0.0 4.4 ± 0.2 183.7 ± 8.5 120.02 ± 5.58 0.55 ± 0.03
RH8 101.4 ± 2.7 0.6 ± 0.0 2.9 ± 0.1 183.7 ± 8.5 183.64 ± 8.62 0.55 ± 0.03
RH9 101.4 ± 2.7 0.6 ± 0.0 2.9 ± 0.1 183.7 ± 8.5 183.64 ± 8.62 0.55 ± 0.03
RH10 101.4 ± 2.7 0.6 ± 0.0 2.9 ± 0.1 183.7 ± 8.5 183.64 ± 8.62 0.55 ± 0.03
Average 100.6 2.2 11.3 183.6 140.2 0.5
Median 101.4 0.8 4.4 183.7 183.6 0.6
Deviation 2.3 4.1 21.4 0.1 72.7 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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